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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: PM R. 2017 Sep;9(9 Suppl 2):S347–S384. doi: 10.1016/j.pmrj.2017.07.074

Table 2.

Synopsis of Findings

Reference Review characteristics Participants Intervention Comparison Outcomes
Babatunde O. et al.* 201616 2 intervention trials
5 observational studies

Evaluating physical activity levels.

AMSTAR Score 6/11
Endometrial cancer survivors with cross sectional, self-report. Self-report of PA

Intensity
Moderate

Duration
150 minutes/week at least 30 min day

Session Frequency
5 days/week

Complemented with computer technology/accelerometer and intervention with computer-based or mobile app
Cross sectional and single arm intervention (one with baseline data from prospective lifestyle intervention trials) Increased physical activity contributes to improved QOL

Higher BMI correlated with lower QOL.
Bergenthal, N. et al 201440 9 RCT’s

Evaluating the efficacy, safety or feasibility of aerobic physical exercise.

Moderate selection bias. High bias in patient-reported outcomes.

AMSTAR Score 9/11
n = 818 adults with hematological cancers including; ALL, AML, malignant lymphoma, and multiple myeloma. AT programs mostly walking programs.

Duration and Intensity: Variable
No exercise intervention or ‘usual care’. Quality of Life outcomes:
Significant improvements but small effect size (SMD 0.26; 95% CI 0.03 to 0.49; P = 0.03).

Physical functioning:
Significant improvements but small effect size (SMD 0.33; 95% CI 0.13 to 0.52; P = 0.0009)

Depression:
Significant improvements but small effect size (SMD 0.25; 95% CI −0.00 to 0.50; P = 0.05)

Anxiety:
No significant changes

Fatigue:
Significant improvement but small effect size (SMD 0.24; 95% CI 0.08 to 0.40; P = 0.003)

Physical Performance:
Individual trials demonstrated significant improvements favoring exercise intervention vs none, however results could not be pooled.

Serious Adverse Events:
No significant difference in events between exercise intervention vs none. (RR 1.44; 95% CI 0.96 to 2.18; P = 0.06)
Bourke, L. et al. 201331 14 RCTs

Cochrane review

AMSTAR Score 10/11

Low selection and reporting bias.
Moderate attrition bias.
n = 648

Various cancer types including breast, colorectal, prostate and others.
AT with or without RT

RT alone

Only “6 trials would meet current recommendations for aerobic exercise”

Questionnaires or exercise log reported 2 – 5 times/week
Control group with the same type of cancer

* standard care did include physiotherapy in at least one trial
Aerobic exercise tolerance improved at 8 –12 weeks’ post intervention with large effect size. (SMD 0.73, 95% CI 0.51–0.95)

and at 6 months with large effect size. (SMD 0.84, 95% CI 0.45–0.94)
Bradt J. et al.* 201452 1 quasi-experimental RCT

1 RCT

* Cochrane review

AMSTAR Score 9/11
n= 68
Women with breast cancer within 5 years of treatment
Dance/movement therapy Wait-list control group Body Image
No significant effect

Individual studies reviewed trend towards significance in QOL and fatigue, but no pooled effects analyzed.

No effect on shoulder ROM and arm circumference, but large variability was reported in these measures.
Buffart, L. et al. 201736 34 RCTs

AMSTAR Score 9/11
n = 4,519

Various types of cancers including; Breast, male GU, hematologic, GI, GYN, respiratory, and other.

Post completion of active cancer treatment.
AT and RT exercise programs.

Supervised and unsupervised exercise programs.

Session Frequency
2 – 5x/week
Control groups varied; usual care, wait-list, attention. QOL
Significantly improved with small effect size. (0.15, 95% CI 0.10; 0.20)

Physical Function
Signifiantly improved with exercise but with small effect size. (0.18, 95% CI 0.13; 0.23)

Effects of supervised exercise twice as large as unsupervised exercise.

Suggested that impact of attention from physiotherapist, better equipment, more challenging prescriptions, or better adherence from supervised programs needed further investigation.

No significant effect on BMI.

Studies may not adequately measure and reflect adiposity.
Capozzi, L.C. et al.* 201637 16 observational studies

8 experimental trials

Moderate selection bias.
Low to moderate outcomes reporting bias.

AMSTAR score 8/11
Various cancers of the head and neck including: Hypopharynx, Larynx, Oropharynx, Lip, Oral Cavity, Tonsil, Salivary glands, Nasopharynx, Nasal cavity, Paranasal sinus, and middle ear.

During and after cancer treatment.
RT, Hydrotherapy, Walking, Walking + exercise.

Exercise frequency was highly variable

Intensity
Moderate to vigorous

Duration was highly variable

Supervised and unsupervised trials.
4 trials with control groups of usual care.

Remaining trials with no control comparison group.
Significant improvement in lean body mass, strength, physical function, QOL, fatigue management. *75% of patients reported “possibly” or “definitely” interested in physical activity counseling.
Carvahlo, A.P. et al. 201253 3 controlled trials

Low selection, attrition and reporting bias.

* Cochrane review

AMSTAR score 9/11
n = 104
Head and neck cancer survivors (primarily oropharynx) with shoulder dysfunction

Range 2 – 180 months post-surgery
PRE with ROM and stretching.

Frequency
Average 3x/week

Program Duration
12 weeks

Intensity
Variable
Control groups with “standard care,” some of which included shoulder ROM exercises (but not progressive) Progressive resistive training was more effective than standard physiotherapy for restoring shoulder function however effect is small. (−6.26, 95% CI −12.2;−0.31)
Cheema, B. et al. 200833 5 RCT

4 uncontrolled trials 1 non-randomized intervention trial

AMSTAR score 5/11
Women only, during or after chemotherapy and radiation, Variable disease stage

Variable extent of surgery

No males
Various AT and RT programs with PRE.

Duration
8 – 24 weeks

Supervision
6 trials with complete supervision

3 with partial supervision

1 with no supervision.

Progressive resistive exercise was referred to but parameters were not defined.
“Non-exercise” control group PRE significantly improved: endurance, strength, flexibility, lean mass, cardiorespiratory fitness, immune system, mood, self-esteem.

Large effect size seen with change in grip strength. Moderate effect size with peak power and VO2 improvements.

Chemotherapy dose tolerance significantly improved.

Immune Function:
Increased % T-helper lymphocytes.

Increased total activated CD-4 cells.

Increased lymphocyte proliferation.

Improved IFN gamma to IL-6 ratio.

Increased circulating IGF-II.
Cheifetz, O. et al.* 201055 10 trials focusing on the role of exercise in lymphedema

High selection and outcomes measurement bias.

AMSTAR score: 4/11
Breast cancer Early physiotherapy

RT

Primarily supervised exercise programs.

Frequency or duration not defined.
“Non-intervention” group Exercise is beneficial and safe for secondary lymphedema.

Post-operative rehabilitation improves shoulder ROM.

Supervised PRE does not worsen lymphedema.
Chipperfield, K. et al.* 201415 4 interventional trials

2 pilot studies

1 cross-sectional survey

High selection and outcomes reporting bias.

AMSTAR score 6/11
Prostate cancer patients during ADT administration. Variable RT and AT programs

1 cross-sectional of PA

Program Duration
12 weeks - 6 months.

Intensity
Most trials moderate intensity

Most trials supervised intervention.
Two pilot studies and one cross-sectional without a control group

“considerable variability in sample sizes”
Significant improvement in QOL.

Inconclusive findings regarding impact on cognitive changes, depression, and anxiety.

* only 45% of reported PA met guideline standards.
Cramer, H. et al. 201766 24 RCTs of yoga interventions

* Cochrane review Moderate attrition and reporting bias.

AMSTAR score 9/11
n = 2,166

Breast cancer patients.

During or after cancer treatment.
Program duration
Range of 6 sessions to 6 months.

Session Frequency
1 – 3 x week

Session Duration
20 – 120 min
Wait list controls.

One trial with exercise intervention control
Significant improvements in:

QOL with small effect size (SMD = 0.22, 95% CI 0.04; 0.40)

Fatigue with medium effect size (SMD = −0.48, 95% CI − 0.75; − 0.40)

Sleep disturbance with small effect size (SMD = − 0.25, 95% CI −0.40; − 0.09)

Depression with very small effect size (SMD = −0.13, 95% CI −0.31; 0.05)

Anxiety with medium effect size (SMD = − 0.53, 95% CI −1.10; 0.04)
Cramer, H. et al 201420 5 RCTs

AMSTAR score 7/11
n = 238

Colorectal cancer patients from 3 – 60 months post cancer treatment
AT

Intensity
Low vs Moderate

Duration
2 –16 weeks

3 trials with supervision

2 trials home-based
Usual care or different exercise program

One trial with attention control with phone calls at same interval as program interventions.
Significant short-term improvement of overall physical fitness. (SMD = 0.59, 95% CI 0.25; 0.93, P < 0.01)

No evidence for significant effects on QOL or fatigue biomarkers.

Inflammatory profile
Significantly improved with moderate exercise.

Greater DNA damage noted with moderate exercise.
Cramp, F. et al. 201221 56 controlled trials on cancer-related fatigue

High detection bias

* Cochrane review

AMSTAR score 9/11
n = 4,068

Various types of cancer with the majority including breast cancer.

During and after completion of cancer treatment.
AT

Frequency and duration
Variable

Mode
Walking or cycling
Usual care or wait-list.

At least two trials controlled with psychotherapy interventions.
Significant improvement in cancer-related fatigue with AT but with small effect size. (SMD = −0.27, 95% CI −0.37; −0.17)
D’Souza, V. et al.* 201638 8 studies reviewing

2 studies reviewed use of PA

5 trials included but were not limited to RCTs.

AMSTAR score 7/11
Various types of cancers Physical activity, various modes, Variable Body composition
Significant reduction in BMI

Endurance
Significant increase in peak O2 consumption and peak power.

Fatigue
Significantly less with greater levels of reported PA.

QOL
Improved with greater levels of PA.
Davies, N.J. et al.* 201164 Review of studies with varied methodology including:

4 RCTs with biomarker of recurrence as outcome

4 Prospective cohort studies

2 Cross-sectional studies

3 Systematic reviews/meta-analysis

Significant heterogeneity in included studies.

High risk of selection bias.

AMSTAR: 3/11
Breast, prostate, and colorectal cancer patients both during and after completion of cancer treatment Observational Studies: Self-reported physical activity

RCTs: 1 Moderate intensity AT

2 AT + RT

Program Duration: 12–36 weeks
For observational studies & systematic reviews: Active PA group compared to inactive/lowest PA group;

For RCTs: Exercise vs usual care
Physical Activity Participation
Improved survival and reduced risk of recurrence, mostly based on observational studies;

Threshold of moderate intensity may be necessary to achieve positive impact on survival.

Dose response improved with longer or more intense exercise.
De Backer, I.C. et al.* 200926 24 trials post chemotherapy

10 RCTs

4 Controlled intervention trials

10 Uncontrolled trials

High risk of attrition and outcomes reporting bias.

AMSTAR Score: 7/11
All trials post-chemotherapy

13 Breast

3 Prostate

6 various types of cancer

1 post-stem cell transplant
RT with or without additional AT.

RT was mostly machine based; total body program.

Frequency
2 – 3 days/week

Program Duration
3 – 24 weeks (median =12 weeks)

Intensity
Moderate to vigorous

Detailed reporting of exercise parameters of included studies.
Not reported Body composition
No effect of resistance exercise on adiposity. Trend towards significance in improved lean body mass.

Cardiopulmonary Function
Increased

Muscle function
Improved muscle strength and muscle endurance.

Lymphedema
Exercise at any level had no impact on swelling.

Immune Function
No significant impact from exercise.

Endocrine Function
Decrease in insulin family proteins.

Hematologic Function
No influence on hemoglobin levels.
Egan, M.Y. et al.* 201342 Exercise interventions post cancer treatment only

13 systematic reviews

6 RCTs

AMSTAR Score: 6/11
Various types of cancers Mixed AT and RT

PA

Supervised settings
Low levels of PA or no PA or Usual care Physical Function
Moderate improvements in overall function.

Fatigue
Significant improvements

Depression
Small effect trending towards positive impact.
Fong, D.T. et al. 201224 34 RCTs Evaluating the effects of PA after cancer treatment.

AMSTAR Score: 9/11
22 trials breast cancer.

3 trials colorectal cancer

1 trial endometrial cancer.

8 trials including various cancer types.

Average age 55 years (range = 39 – 74 years)
27 trials AT

6 trials AT + RT

Duration
Average 13 weeks (range = 3 – 60 weeks)

Intensity
11 trials: moderate
2 trials: vigorous
Sedentary comparisons or assigned no exercise Physiological markers:
Significant reduction in insulin-like growth factor-I (95% CI −23.3 to −0.5; P = 0.04)

No effect on insulin, glucose, and homeostatic model assessment.

Body composition:
Slightly reduced BMI (−0.4, 95% CI, −0.6 to −0.2; P<0.01) and body weight (−1.1kg, 95% CI, −1.6 to − 0.6kg; P<0.001)

No effect on waist: hip ratio

Physical functions:
Significant increase in peak oxygen consumption (2.2mL/kg/min, 1.0 to 3.4; P<0.01)
peak power output (21W, 13.0 to 29.1; P<0.01) distance walked in six minutes (29m, 4 to 55; P = 0.03)
bench press weight (6kg, 4 to 8; P<0.01)
leg press weight (19kg, 9 to 28; P<0.01)
right hand grip strength (3.5 kg, 0.3 to 6.7; P= 0.03)

Psychological outcomes:
Reduced depression using Beck depression inventory (−4.1, −6.5 to −1.8; P<0.01)

Reduced fatigue using Piper Fatigue scale (−1.0, −1.8 to − 1.0: P=0.03)

Quality of Life outcomes:
Significant improvement on SF-36 physical function, social function, and mental health functions.
Fontein, D.B. et al.* 201363 14 Prospective observational studies
2 RCTs
2 Retrospective case control studies

AMSTAR Score 7/11
Breast cancer only Self-report levels of PA Inactive or low self-reported PA Cancer specific survival and all-cause mortality:
36%–67% decrease in rate of disease-specific mortality of highest PA levels vs. lowest PA levels.

Significant benefit on all-cause mortality in the highest PA group ranging from 14%–56% decrease compared to low PA.
Fu, M.R. et al.* 201460 9 RCTs

2 Uncontrolled trials

3 systematic reviews

AMSTAR Score: 5/11
Various types of cancers “Full body exercise” not characterized. Some reported use of resistance training. Not described Full Body Exercise
Does not worsen lymphedema and may improve shoulder mobility.

Resistive Training
Safe if progressive, starting with low intensity.
Granger, C.L. et al.* 201127 9 Case series

2 RCTs

3 Cohort studies

AMSTAR: 11/11
Non-small cell lung cancer at any phase of treatment. All studies included aerobic

54% added RT

31% added stretching

Intensity
Moderate to vigorous

Program Duration
4–12 weeks

Session Frequency
2–7 days/week
Not described Pre-operative Exercise
Improvements in 6-minute walk distance post treatment.

No change in HRQOL.

Post-operative Exercise
Improvement in 6MWD but only small significance as compared to usual care.

Conflicting evidence for HRQOL between trials.
Guinan, E.M. et al.* 201328 7 RCTs

2 non-randomized trials

Moderate attrition bias

AMSTAR Score: 8/11
Early stage, post-adjuvant treatment breast cancer survivors 7 trials AT with or without RT

1 trail RT only

Intensity
Moderate to vigorous

Program Duration
8–36 weeks
Non-exercise control group Body Composition Mixed findings for impact on % body fat, BMI, and waist and hip circumferences.

Insulin Resistance Markers
No effect on insulin or FBG

Decreased levels of IGF-1.

Mixed results for IGF II or IGFBP3 levels.
Hackshaw-McGeagh et al. 201544 4 RCTs with exercise only

6 RCTs with Exercise + Diet

AMSTAR: 10/11
Prostate cancer survivors at various stages of disease and phases of treatment. AT + RT

1 trial RT only
3 aerobic only

Program Duration

13 – 104 weeks
Non-exercise control group in most studies. No impact from exercise on disease progression markers, e.g., PSA, testosterone.
Harder, H. et al.* 201249 18 RCTs

Moderate bias in randomization, attrition, and blinding.

AMSTAR Score: 8/11
Breast cancer survivors at various phases of treatment and with stages of disease Yoga

Program Duration
4 – 36 weeks (most were between 4–12 weeks)

Program Frequency
1–2 sessions per week + home practice
Education only

Rehabilitation intervention

Wait-list control
Psychological/symptom distress:
Significantly reduced depression (ES: 0.24 to 0.33) anxiety (ES: 0.31) and negative affect (ES: 0.59 to 0.84)

HRQOL:
Significantly improved function scales: Social well-being (ES: 0.22) physical functioning (ES: 0.44) and emotional function (ES: 0.71)

Significantly improved symptom or single-item symptom measures were 0.47 or below (insomnia and appetite loss).

Fatigue (ES: .33–1.5)
Keogh, J.W. et al.* 201130 12 intervention trials

AMSTAR Score: 7/11
Prostate cancer survivors RT, AT or RT + AT

Intensity
Moderate to vigorous

Frequency
2 – 5 days/week,

Program Duration
8 – 25 weeks
Not described Resistance Training:
Grade A evidence for improves fatigue, QOL and muscle endurance;

Grade C for body composition impact, muscle strength and general function.

Aerobic Training:
Grade B evidence for aerobic endurance, sit to stand time, fatigue, QOL;

Grade C evidence for body composition and strength.

Resistance + Aerobic Training:
Grade B evidence for muscle mass, muscle strength & endurance, walk speed, QOL

Grade C evidence for aerobic endurance, and fatigue.
Kwan, M.L. et al.* 201129 13 RCTs

2 Case series

4 Cohort studies

AMSTAR Scores: 7/11
Breast cancer survivors RT or RT + AT

Intensity
Low to moderate

Frequency
2–3 days/week

Program Duration
Up to 39 weeks;

Also included physiotherapy directed programs
Usual care Resistive Training is safe and does not increase risk of lymphedema in breast cancer.

Aerobic + Resistive Training trends towards positive but results are inconclusive due to limited studies.
Larkin, D. et al. 201443 5 interventional trials

AMSTAR Score: 9/11
Prostate cancer survivors on androgen depravation therapy (ADT) and/or radiation therapy Mix of RT, AT, and RT + AT.

Program Duration
8 – 16 weeks
Not described Significant effect of exercise on reducing fatigue.
Lof, M. et al*. 201251 9 RCTs

AMSTAR Score: 3/11
Breast cancer survivors mostly early stage Tai chi, AT, AT + RT

Intensity
Moderate

Session Duration
30 – 60 minutes

Frequency
3 – 5 days/week

Program Duration
8 – 36 weeks
Usual care or support group No conclusive evidence for positive effect on insulin axis proteins or interleukins.
McNeely, M. et al. 200635 14 RCTs

High risk of blinding bias in methodology and reporting.

AMSTAR Score: 9/11
n = 717

Women with a history of breast cancer stage 0 – III. Surgery ± adjuvant treatment.
Mixed AT + RT and AT alone. Placebo, controlled comparison, or standard care. QOL
Significant improvement using FACT-B (6.62, 95% CI 1.21 to 33.64)

Endurance
Significant improvement in peak oxygen consumption.

Body composition
Non-significant reduction in body weight and BMI.

Fatigue

Significant improvement with exercise after active treatment with moderate effect size. (SMD 0.46, 95% CI 0.23 to 0.70)

but not significant during active treatment (SMD 0.28, 95% CI −0.02 to 0.57)
McNeely, M. et al 201056 24 RCTs evaluating interventions for breast cancer-related upper limb dysfunction.

* Cochrane Review

AMSTAR score: 10/11
n = 2132

Women with breast cancer receiving therapeutic exercise for upper limb recover after breast cancer treatment.
Targeted upper limb exercises, AT, RT, and mixed AT + RT.

Supervised vs unsupervised exercise.

Timing:
Early post-surgical exercise and delayed exercise during cancer treatment.
Usual care control group Early versus Delayed Post-Operative Upper Limb Exercise
Significant increase in return to ROM post-operatively with early exercise. (WMD 10.6; 95% CI, 4.51 to 16.6)

Significant increase in wound drainage volume (SMD 0.31, 95% CI, 0.13 to 0.49) and in duration of drain placement (WMD 1.15, 95% CI, 0.65 to 1.65) with early exercise.

Supervised vs unsupervised exercise
Significant improvement with physical therapy supervised exercise in shoulder ROM post-operatively (WMD 12.92, 95% CI, 0.69 to 25.16)

in shoulder function following intervention (SMD:0.77; 95% CI, 0.33 to 1.21)

and at 6 months follow up (SMD: 0.75; 95% CI: 0.32 to 1.19)
Meneses-Echavez, J.F. et al 201525 9 RTCs examining impact of exercise on CRF

AMSTAR Score: 9/11
n = 772

Various types of cancer during adjuvant cancer treatment.

Average time since diagnosis 8.2 months (SD ± 10.7)

Adults mean age 55.5 years (SD ± 7.2)
Supervised, multi-modal exercise interventions including AT, RT, and stretching for CRF. Controls with no intervention 61.3 % adherence rate

Significant improvement in CRF (SMD = −0.23; 95% CI −0.37 to −0.09, P = 0.001)

Gains maintained at average 12 weeks, 24 weeks, and 6 months.

Subsets
  • AT + RT + stretching experienced significant reduction in CRF (P = 0.001)

  • RT alone no significant improvement in CRF levels (P = 0.30)

Meneses-Echavez, J. F., et al. 201661 9 trials Evaluating inflammatory mediators in breast cancer patients.

AMSTAR Score: 9/11
n = 478 (253 exercise/225 control)

Age mean 54 ± 4 (range 49 – 56)

Breast Cancer stage 0 – IIIb

Majority of patients were postmenopaus al.
AT +/− RT, yoga, Tai-chi

Program Duration
Mean 19 weeks (±13 weeks)

Frequency
Mean 3 (± 1) sessions/week

Session Duration
69 (± 34) minutes
No exercise or ‘usual care’ Inflammatory Markers
Interleukin 6 Significant reduction in concentration (WMD −0.55 pg/ml, 95% CI −1.02 to − 0.09)

Tumor Necrosis Factor α Significant reduction in concentration (WMD −0.64 pg/ml, 95% CI - −1.21 to − 0.06)

Interleukin 8
Significant reduction in concentration (WMD −0.49 pg/ml, 95% CI −0.89 to − 0.09)

Interleukin 2
Significant reduction in concentration (WMD 1.03 pg/ml, 95% CI 0.04 to 1.67)

CRP
No significant effect

Interleukin 10
No significant effect
Mishra, S.I. et al. 201232 56 RCTs or quasi-randomized trials evaluating the effectiveness of exercise on HRQOL and HRQOL domains.

* Cochrane Review

AMSTAR Score: 9/11
n = 4826

Various types of cancers both during and after active cancer treatment.
Mode:
Walking, cycling, RT, strength training, mixed AT + RT, yoga, and Qigong
Controls with no exercise intervention, or education only as an intervention. HRQOL
Overall improvement with exercise from baseline to 12 week follow up (SMD = 0.33, 95% CI 0.12; 0.55)

Improvement at 12 weeks in Physical functioning (SMD = 0.69, 95% CI 0.16; 1.22)

Role function (SMD = 0.48, 95% CI 0.07; 0.9)

Social function

Improvement at 6 months in physical functioning

Fatigue:
Significant difference in fatigue levels favoring the exercise group at 12 weeks.

Subset Disease State:
Breast Cancer
Significant reduction in anxiety as compared to other cancer types.

Cancers other than breast
Greater reduction in depression, fatigue, sleep disturbance as compared to breast cancer.

Greater improvement in HRQOL, emotional wellbeing, physical functioning and role function as compared to breast cancer.

Subset Exercise Intensity:
Greater improvements in HRQOL and physical functioning, and significant reductions in fatigue, anxiety, and sleep disturbance with moderate or vigorous exercise versus mild or none.
Mustian, K.M. et al. 201739 113 trials comparing exercise, psychological, and pharmaceutical interventions to treat cancer-related fatigue

AMSTAR Score: 11/11
n = 11,525

Various types of cancer.

78 % female
22 % male

Mean age 54 years (range, 35 – 72 years)
AT, RT, and mixed AT + RT.

Program Duration
Average 43 sessions (range = 1 – 364) over 14 weeks (range = 1 – 60 weeks)

Session Duration
Average 60 minutes (range = 16 – 150)
68 % used standard care, no intervention or wait-list control.

31% used placebo, time attention or education control.
Significant moderate improvement in CRF from pre to post treatment with exercise intervention (WES, 0.30; 95% CI, 0.25 – 0.36, P<0.001)

and with psychological intervention (WES, 0.27; 95% CI, 0.21 – 0.33; P < 0.001)

and with exercise + psychological intervention (WES, 0.26; 95% CI, 0.13 – 0.38; P < 0.001)

Exercise, psychological, exercise + psychological interventions were superior to pharmaceutical interventions in improving CRF.
Otto, S.J. et al. 201562 7 observational studies examining self-reported levels of PA and impact on QOL and survival.

AMSTAR Score: 10/11
n = 4487 colorectal cancer patients (2089 examining QOL end points and 2398 examining survival end points)

Self-reported change in physical activity during cancer treatment.
Patient self-reported recall regarding levels of physical activity pre-diagnosis, during treatment, and post-treatment.

Variety of Patient Reported Outcomes Measures used to quantify level of PA.

Assessment time points varied among trials.
None QOL
Increasing levels of PA during or post treatment associated with improved QOL (SMD = 0.74 (CI = 0.66–0.82))

Survival
Increasing physical activity levels post diagnosis improved survival. (HR = 0.70 95% CI, 0.55; 0.85)

* Weight gain did not affect disease-related mortality.
Pan, Y. et al 201548 16 RCTs

AMSTAR Score: 6/11
n = 538 yoga/493 control

Breast cancer patients Stage 0–III.

+/− Hormonal therapy
Supervised, guided yoga interventions.

Program Duration
Average 3 weeks to 6 months.

Session Frequency
Average 1 – 3 session(s)/week

Session Duration
Average 60 – 90 minutes.

Yoga interventions included:
  • Integrated yoga

  • program

  • Iyengar

  • Modified yoga

  • Restorative

  • Mindfulness

  • Viniyoga

  • Hatha

  • Yoga Sutras

Waitlisted control group Depression:
Significant improvement for yoga cohort. (SMD: −0.17, 95% CI: −0.32 to −0.01; P=0.00)

Anxiety:
Significant reduction for yoga cohort. (SMD: −0.98, 95% CI: −1.38 to −0.57; P<0.00)

Physical Well-being
No significant improvement for yoga cohort. (SMD: 0.23, 95% CI: −0.04, 0.52; P = 0.10)

Overall Health-related Quality of Life
Significant improvement for yoga cohort. (SMD: 0.85, 95% CI: 0.37, 1.34; P = 0.001)

Fatigue
No significant reduction in yoga cohort. (SMD: −0.22, 95% CI: −0.53, −0.09; P = 0.17)

Sleep Quality
No significant improvement in yoga cohort (SMD: −0.19, 95% CI: −0.39, 0.00; P=0.05)

Gastrointestinal symptoms
Significant improvement in yoga cohort (SMD: −0.09, 95% CI: −0.64, 0.46; P=0.74)

Duration of Intervention
Significantly improved effects with yoga program duration of > 3 months. (SMD: 0.40, 95% CI: 0.00, 0.79; P=0.04)
Schmid, D. et al. 201459 23 prospective longitudinal studies

16 studies breast cancer

7 studies colorectal cancer

AMSTAR Score: 9/11
n = 49,095

Breast and colorectal cancer patients self-reported levels of physical activity pre-diagnosis, during cancer treatment, and post diagnosis.
Patient self-reported level of physical activity converted to METS.

Used pooled RRs to compare high vs. low categories of PA at each time point.

Duration/Intensity
Estimated at 150 minutes of moderate physical activity per week.
Breast Cancer Survivors:
High vs Low PA pre-diagnosis
Associated with decreased risk of total mortality (RR = 0.77: 95% CI= 0.69–0.88)

and decreased risk of disease mortality (RR = 0.77): 95% CI= 0.66–0.90)

Each 5, 10, or 15 MET-h/week increase from pre-diagnosis PA level was associated with 7%, 13%, or 19% reduced mortality.

High vs Low PA post-diagnosis
Associated with decreased risk of total mortality (RR = 0.52: 95% CI = 0.42 – 0.64)

and decreased risk of disease mortality (RR = 0.72; 95% CI = 0.60 – 0.85)

Each 5, 10, or 15 MET-h/week increase in post-diagnosis PA levels was associated with 13%, 24%, or 34% reduced mortality.

Colorectal Cancer Survivors:
High vs Low PA pre-diagnosis
Associated with decreased risk of total mortality (RR = 0.74; 95% CI = 0.63 –0.86)

and decreased risk of disease mortality (RR = 0.75; 95% CI = 0.62 – 0.91)

Each 5, 10, or 15 MET-h/week increase in pre-diagnosis PA levels was associated with 7%, 14%, or 20% reduction in total mortality.

High vs Low PA post-diagnosis
Associated with strong risk reduction for total mortality (RR = 0.58; 95% CI = 0.48 – 0.70)

and colorectal cancer mortality (RR = 0.61; 95% CI = 0.40 – 0.92)

Each 5, 10, or 15 MET-h/week increase in post-diagnosis PA levels was associated with a 15%, 28%, or 38% lower risk of mortality.
Scott, D.A. et al 201357 12 RCT’s

AMSTAR Score: 4/11
n = 1669

Various types of cancers.

All participants had completed primary cancer treatments.
Multidimensional rehabilitation program (MDRP):

Inclusive of a physical (exercise, dietary regime) and psychosocial (counseling, cognitive behavior therapy) component carried out on 2 or more occasions.

Individual supervised

Group supervised

Unsupervised
No intervention or lower-level intensity program, or different mode of administration. Significant improvement in the SF-36 physical health component score (Mean Difference = 2.22 (95% CI 0.12 to 4.31, P = 0.04))

MDRP most successful when focusing on one behavior area (exercise or stress management) rather than focusing on several different behaviors at the same time.

Significant improvements noted in supervised vs unsupervised settings, but the type of provider delivering services had no impact on improvements.

Maximum benefit to MDRP was noted by 6 months.
Sebio Garcia, R. et al. 201634 21 controlled trials evaluating the impact of pre-operative exercise interventions.

AMSTAR Score: 8/11
n = 1189 (595 intervention/594 controls)

Lung cancer Stage I – IIIA during adjuvant or neoadjuvant treatment.

62 % male

Average age 64.8 years (±5.28)/64.3 years (± 6.3)
Outpatient-based exercise programs.

AT, RT, or mixed AT + RT with or without breathing or incentive spirometry intervention.

Duration
Average 4 weeks (range = 1 week to 10 weeks)

Intensity
Moderate to Vigorous
No exercise Pulmonary Function:
Significant increase post operatively in FEV1 (SMD = 0.27, 95% CI 0.11, 0.42) and in FVC (SMD = 0.38, 95% CI 0.14, 0.63).

Trend towards significance in VO2peak. Improvement noted but pooled effects were not possible.

Functional Recovery:
Significant reduction in post-operative hospital length of stay (mean difference = − 4.83, 95% CI −5.90, −3.67)

Significant reduction in post-operative complications (RR = 0.45, 95% CI 0.28, 0.73)

HRQOL:

No significant improvements.

Breathing Exercises:
No evidence to support that adding breathing exercises or incentive spirometry provides additional benefit.
Shneerson, C. et al. 201346 5 RCTs Evaluating the effect of yoga 4/5 studies had high risk for selection and outcome reporting bias.

AMSTAR score 7/11
n = 66

Breast cancer, after completion of active treatment.

Age range 50–63
Yoga programs 3 trials of hatha 1 trial restorative 1 trial Iyengar)

Program Duration
7 weeks - 6 months

Frequency
At least twice a week

Session Duration
1 – 1.5 hours
All RCTs, with waitlist controls Very small effect sizes overall.

QOL
Improved in only 1 study vs controls

Emotional subscale of FACT-B improved in only 1 study (ES 0.51, 95 % CI 0.18 – 0.84) for overall QOL at 3 months, no difference at 6 months.

Physical QOL no difference at 3 months.

Mental QOL better than controls at 3 months (ES 0.46, 95% CI 0.14 – 0.77)
Singh, F. et al.* 201358 18 controlled trials evaluating prehabilitation or pre-operative exercise programs. (10 RCT’s)

AMSTAR Score: 7/11
n = 966

Lung, prostate, Abdominal & GI cancers receiving exercise training or intervention prior to surgery.

Age range 54.1 years (± 8.53) to 71.1 years (± 6.3)
AT, RT, and mixed forms AT + RT +/− muscle re-education exercises.

Supervised and unsupervised programs.

Timing of intervention prior to surgery
Median 21 days (range = 7 – 52 days)

Frequency
5 – 7 x/week

Intensity
Aerobic: Range 40% – 80% max capacity.

Resistance: 60 % to 80 % 1RM Or Repetitions as a proxy for intensity

Session Duration
15 minutes to up to 3 hours/session.
Education-only or No intervention or Different training program Functional walking capacity:
Trend towards significance, only 2 studies showed significance. Pooled effects not calculated.

Cardiorespiratory fitness:
Significant increases (8% to 32%) Pooled effects not calculated.

Quality of Life:
Mixed results. Significant variability in measurement tools prevented pooled calculations.

3/5 studies measuring QOL showed no improvement.

Rate of Return to Continence:
Trend towards significance, study heterogeneity prevented pooled calculations.

Length of Hospital Stay:
Significant improvements noted, pooled calculations not possible.
Smits, A. et al.* 201565 8 controlled trials (3 RCTs)

AMSTAR score 7/11
n = 413

Endometrial and Ovarian cancers.

Following completion of active cancer treatment.
Predominately walking, and unspecified physical activity home-based program.

Program Duration
4 weeks to 6 months

Frequency
5x/week

Session Duration
30 minutes
Mixed controlled and single-arm trials.

Comparisons not specified.
Endurance
12-min walk and aerobic capacity improved at 3 and 6 months post intervention.

Strength
Improved at 6 months.

QOL
No improvement noted at 3 or 6 months.
Speck, R. et al 201017 82 studies

66/82 ‘high quality’ controlled studies included in meta-analysis.

AMSTAR score 7/11
n = 6838

Breast (83%), colon, lung, ovarian, leukemia, lymphoma, prostate, sarcoma, stomach, testicular, and other cancer types.

40% during active cancer treatment.

60% post treatment.
80% had combined exercise AT+RT programs. Mode was primarily AT.

Intensity
Not specified. Assessed frequency during vs. after treatment.

Program Duration
Most interventions > 5 weeks

Session Frequency
Average 3 – 5x/week.
All studies included comparison groups but were unspecified. Exercise during active cancer treatment
Significant WMES improvement in Overall physical activity level (0.38, p = 0.001)

Aerobic fitness (0.33, p = 0.009)

Upper body strength (0.39, p = 0.005)

Lower body strength (0.24, p= 0.006)
Body weight (−0.25, p = 0.05)

Body fat percentage (−0.25, p = 0.04)

Functional quality of life (0.28, p = 0.04)

Positive mood (0.39, p = 0.002)

Anxiety (−0.21, p = 0.02)

Self-esteem (0.25, p = 0.02)

No significant adverse effects were reported (e.g. blood counts)

Exercise after completion of cancer treatment
Significant WMES improvement in
Physical activity level (0.38, p < 0.0001)

Aerobic fitness (0.32, p = 0.03)

Upper body strength (0.99, p<0.0001)

Lower body strength, (0.90, p = 0.024)

Body weight (−0.18, p = 0.004)

Body fat percentage (−0.18, p = 0.006)

BMI (−0.14, p = 0.002)

Overall quality of life (0.29, p = 0.03)

Breast cancer-specific concerns (0.62, p = 0.003)

Perception of physical condition (0.57, p = 0.04)

Mood disturbance (−0.39, p = 0.04)

Confusion (−0.57, p = 0.05)

Body image (−0.26, p = 0.03)

Fatigue (−0.54, p = 0.003),

General symptoms and side effects (−0.30, p = 0.03)
IGF-1 (−0.31, p = 0.03)
Spence, R.R. et al.* 201018 10 studies (4 RCTs, 3 controlled non-randomized, 2 intervention, non-controlled, 1 single group design)

AMSTAR score 8/11
n = 483

4 trials included breast cancer only.

3 trials included mostly breast cancer.

2 trials included only colorectal cancer.

Age range 16 – 71 years
AT and RT

Program Duration
2 – 26 weeks

Intensity
Moderate

Frequency
3x/week during ‘rehab period’ up to 12 months after adjuvant treatment
Current activity

Stretching

3 trials with no comparison group.
Physical Function and Endurance
Significantly improved VO2peak and strength.

Fatigue

Reduced

Physiological Biomarkers
Trend towards improvement but somewhat mixed.

Improvements immune cell function, lower reported neutropenia, lower inflammatory markers.

Modest improvements in body composition.
Steel, J. et al.* 201422 2 studies

Both trials in hospital-based settings immediately after surgery.

AMSTAR score 8/11
n = 58

GI cancers primarily stomach and colorectal.
Arm and leg cycling exercises.

Intensity
Moderate

Frequency
5x/week

Program Duration

2 weeks

Session Duration
40 minutes
Lower intensity exercise or no exercise controls. Immune function

Significant improvement in NK cell activity. Lower antagonist/cytokine ratio at end of program vs controls.

* Initially exercise induced a decrease in NK cell activity.
Van Dijck, S. et al.* 2016 23 13 RCTs

AMSTAR score 4/11
n = 2,180

Breast cancer patients during and after cancer treatment.
AT

Program Duration
1 – 12 months

Unspecified duration, intensity, and frequency

Primarily unsupervised (as part of ‘physical self-management’ program)
Usual physical activity, usual care or written materials During cancer treatment
QOL was modestly improved or no change was identified.

Fatigue modestly improved.

Physical function improved.

After cancer treatment
Consistent improvement in QOL.

No significant difference for fatigue levels

Mixed results on endurance measures (6MWD, VO2peak)
van Vulpen, J.K. et al. 201641 5 RCTs (784 patients)

High risk of performance and attention bias.

AMSTAR score 8/11
n = 784

Breast cancer patients during adjuvant cancer treatment. (defined as either chemotherapy or radiation therapy)

Mean age 50 – 56 years
RT and AT

Session Frequency
2 – 5x/week

Session Duration
30 – 60 minutes

Intensity
AT: Moderate

RT: > 60 % of 1RM

Supervised
Usual care or sham Fatigue
Small to medium effect sizes (ES 0.20–0.50) for general fatigue and physical fatigue improvements vs controls during chemotherapy.

No significant effect on cognitive fatigue

Supervised programs had larger effect sizes than unsupervised.
Visser, W. et al.* 201454 5 studies (2 prospective cohort, 2 retrospective cohort, 1 case control)

AMSTAR score 7/11
n = 321

Rectal cancer

Mean age 55 – 67 years
Pelvic floor and core muscle training

Program Duration
7 – 15 sessions

Supervised
2 trials pre-post comparison.

3 trials compared to no rehabilitation.
QOL
Significantly improved

Improved incontinence and pelvic floor muscle function.
Winters Stone, K. M. et al.* 201019 8 studies investigating impact of exercise on bone density. (5 RCT, 5 uncontrolled intervention)

AMSTAR score 9/11
n = 567

7 trials breast

1 trial prostate

During survivorship period.

Mean age range 48 – 55 years.
50% AT

50% RT

Program Duration

12 – 52 weeks

Session Frequency
2 – 7x/week

Intensity
Predominately moderate

50% supervised
50% unsupervised
Usual care or drug therapy without exercise Most exercise groups maintained BMD while controls experienced decline in levels of BMD.

Modest increase in BMD in some exercise groups.

Trend towards positive improvement in BMD with exercise.
Zhu G. et al. 201646 33 RCTs

Moderate allocation and reporting bias.

AMSTAR 7/11
n = 2,659

Breast cancer survivors
AT with or without RT, Tai-chi, yoga

Frequency and duration not reported
Usual care, wait-list, brief supportive therapy Significant improvement in

QOL (I2 = 0% P = 0.006, 95% CI: 0.11, 0.62)

General health (I2 = 95%, P = 0.02, 95% CI: 0.70, 8.48)

Emotional well-being (I2 = 2%, P = 0.0006, 95% CI: 0.12, 0.43)

Social well-being (I2 = 0%, P = 0.01, 95% CI: 0.19, 1.69)

No significant improvement in fatigue.

Muscle strength significantly improved. (I2= 48%, P = 0.0009, 95% CI: 1.76, 6.78)

BMI significantly improved (I2 = 0%, P = 0.00001, 95% CI: −1.09, −0.47)

Significant reduction in Insulin (I2 = 95%, P = 0.05, 95% CI: −13.64, 0.06) and Insulin-like growth factor binding protein (IGFBP)-1 (I2 = 46%, P = 0.00001, 95% CI: −4.40, −1.91)
Zimmer, P. et al* 201647 14 studies (6 RTCs, 1 non-randomized, 2 prospective non-controlled, 1 case series, 1 observational study, 3 cross sectional studies)

AMSTAR score 7/11
Mostly breast and some prostate cancer survivors. 11 trials yoga of various forms

1 trial AT

1 trial RT

1 trial tai chi

Program Duration
4 weeks - 6 months

Session Frequency
1 – 3x/week

Session Duration
60 – 90 minutes
Most with no comparison group.

2 trials with usual care comparison.
Cognitive Function

Significant improvement with yoga.

Significant improvement with other exercise types (AT, RT, and tai chi)

Inflammatory Markers
Profile improved in both yoga and other exercise groups.

Table Abbreviations: 6MWD- 6 minute walk distance, ALL – Acute leukocytic leukemia, AML – Acute myeloid leukemia, AT – Aerobic training, BMD – Bone mineral density, BMI – Body mass index, CI – Confidence interval, CRC – colorectal cancer, CRF – Cancer-related fatigue, ES – Effect size, FEV – Forced expiratory volume, FVC – Forced vital capacity, GI – Gastrointestinal, HR – Hazzard ratio, IFN – Interferon IGF-BP3 – Insulin-like growth factor binding protein 3, ILGF-I – Insulin-like growth factor I, ILGF- II – Insulin-like growth factor II, HRQOL – Health related quality of life, MET – Metabolic equivalent of task, MDRP – multidimensional rehabilitation program, PA – Physical activity, PRE – progressive resistive training, PSA- Prostate-specific antigen, QOL- Quality of life, RCT – Randomized controlled trial, ROM – Range of motion, RR – Risk ratio, RT – Resistance training, SD – Standard deviation, SF-36 – Short form 36, SMD – Standard mean difference, VO2max – Maximal oxygen consumption, WES – Weighted effect size, XRT – Radiation therapy.

*

Effect size calculations not provided in the review