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. 2015 Jul 23;17(7):e185. doi: 10.2196/jmir.4799

Table 2.

Cardiopulmonary exercise test parameters at baseline and 6 weeks and 24 weeks follow-up period.

Cardiopulmonary exercise test resultsa Week, mean (SD) Within-group, P Between-group, P

Week 1 Week 6 Week 24 Overall Δ 6-1 Δ 24-6 Δ 24-1 Overall Δ 6-1 Δ 24-6 Δ 24-1
Intervention group











VO2 peak (mL/[min*kg]) 22.46 (6.43) 23.91 (6.74) 24.46 (7.57) .01 .08 .38 .01 <.001 .19 .01 <.001

HR max (% pred) 79 (13) 80 (12) 83 (12) .047 .99 .36 .05 .53 N/A N/A N/A

Watt (W) 152 (48) 163 (52) 165 (53) .01 .02 .81 .01 .01 .90 .01 .02

Watt (pred%) 103 (23) 110 (27) 116 (27) <.001 .01 .27 <.001 <.001 .83 .01 .01

VT1 (W) 69 (24) 75 (25) 81 (26) <.001 .74 <.001 <.001 <.001 .80 <.001 <.001

VT1 (bpm) 93 (17) 91 (15) 96 (15) .01 .99 .01 .08 .01 .35 .01 .047

OUES (mL/min/log[mL/min]) 2067 (518) 2241 (545) 2272 (579) <.001 .02 .045 <.001 .1 N/A N/A N/A

Weight (kg) 83.3 (18.2) 83.2 (17.4) 83.0 (17.3) .69 N/A N/A N/A .45 N/A N/A N/A

BMI (kg/m2) 28 (5) 28 (5) 28 (5) .63 N/A N/A N/A .60 N/A N/A N/A

DBP rest (mm Hg) 82 (19) 81 (21) 77.24 (21.13) .48 N/A N/A N/A .67 N/A N/A N/A

SBP rest (mm Hg) 126 (21) 129 (30) 150 (140) .26 N/A N/A N/A .30 N/A N/A N/A
Control group











VO2 peak (mL/([min*kg]) 22.72 (6.05) 22.86 (5.37) 22.15 (5.83) .02 .99 .02 .09




HR max (% pred) 77 (12) 79 (13) 79 (12) .43 N/A N/A N/A




Watt (W) 150 (49) 158 (50) 152 (53) .01 <.001 .02 .99




Watt (pred%) 105 (26) 108 (26) 104 (27) .01 <.001 .01 .99




VT1 (W) 83 (34) 88 (34) 76 (31) <.001 .20 <.001 .01




VT1 (bpm) 95 (15) 96 (15) 95 (17) .53 N/A N/A N/A




OUES (mL/min/log[mL/min]) 2493 (2338) 2264 (637) 2142 (636) .25 N/A N/A N/A




Weight (kg) 82.7 (13.4) 82.5 (13.3) 82.5 (13.9) .18 N/A N/A N/A




BMI (kg/m2) 28 (4) 28 (4) 27 (5) .51 N/A N/A N/A




DBP rest (mm Hg) 84 (21) 78 (19) 79 (17) .33 N/A N/A N/A




SBP rest (mm Hg) 129 (25) 127 (23) 129 (21) .57 N/A N/A N/A



a BMI: body mass index; CPET: cardiopulmonary exercise testing; DBP: diastolic blood pressure; HR: heart rate; N/A: not applicable; OUES: oxygen uptake efficiency slope; SBP: systolic blood pressure; VT1: first ventilatory threshold.