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. 2021 Jan 5;9(1):e18686. doi: 10.2196/18686

Table 1.

Baseline (end of the Strength2Strength program) characteristics of randomized participants.

Outcome measure Usual care group (n=42) Telephone counseling group (n=38) Activity tracker group (n=37) Total (N=117)
Age (years), mean (SD) 71.9 (6.0) 72.8 (7) 72.3 (7) 72.4 (6.5)
Gender, n (%)

Female 29 (69) 22 (58) 24 (65) 75 (64.1)

Male 13 (31) 16 (42) 13 (35) 42 (35.9)
Physical activity, mean (SD)

Steps 6590 (2908) 4996 (2533) 6764 (3244) 6136 (2985)

Nonstepping time (minutes per 24 hours) 1073 (109) 1099 (138) 1093 (107) 1088 (118)

Self-reported activity (minutes) 200 (279) 176 (187) 174 (252) 183 (239)

Self-reported activity (metabolic equivalents per minute) 730 (994) 608 (680) 618 (892) 652 (855)
Body composition, mean (SD)

Weight (kg) 84.5 (23.1) 84.6 (22.6) 83.6 (19) 84.2 (21.5)

BMI (kg/m2) 31.5 (7.8) 31.2 (8.2) 30.2 (6.1) 31.0 (7.4)

Body fat (%) 37.9 (9.5) 35.3 (10.2) 36.9 (9.4) 36.7 (9.6)

Muscle mass (kg) 47.5 (10.6) 49.9 (11.1) 48.6 (9.1) 48.6 (10.3)
Blood pressure, mean (SD)

Systolic blood pressure (mm Hg) 131 (16) 128 (20) 129 (13) 130 (17)

Diastolic blood pressure (mm Hg) 76 (9) 77 (10) 76 (8) 76 (9)
Physical function, mean (SD)

Ten-time sit-to-stand (seconds) 21.7 (7.1) 21.5 (6.8) 23.7 (8.4) 22.2 (7.4)

Timed up and go (seconds) 7.2 (2.9) 7.5 (2.9) 7.8 (3.1) 7.5 (2.9)
Quality of life, mean (SD)

SF-36a physical health summary score 52 (22) 55 (20) 55 (20) 54 (21)

SF-36 mental health summary score 64 (20) 68 (16) 68 (18) 67 (18)
Health conditions, n (%)

Cardiovascular disease 25 (59) 21 (55) 21 (57) 67 (57)

Metabolic disease 26 (62) 14 (37) 16 (43) 56 (48)

Musculoskeletal conditions 25 (59) 23 (60) 30 (81) 79 (67)

Pulmonary conditions 7 (17) 9 (24) 6 (16) 22 (19)

Cancer 8 (19) 9 (24) 4 (11) 21 (18)

Mental health conditions 4 (9) 9 (24) 5 (13) 18 (15)

≥2 chronic conditions 29 (69) 28 (74) 27 (73) 84 (72)

Gait aid 4 (9) 4 (10) 6 (16) 14 (12)

aSF-36: Short-Form 36-Item Health Survey.