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Table 2 Results and effect sizes for aerobic performance and modified shuttle walk at baseline and at the end of the 12-week training period

From: Aerobic exercise in adolescents with obesity: preliminary evaluation of a modular training program and the modified shuttle test

  

Baseline

12-week training period

p-value

Effect size

Aerobic performance

    

VO2 peak

mL/min

2768.6 ± 416.3

3252.2 ± 490.8

P < 0.0001

2.4

 

mL/kg·min

26.8 ± 3.3

35.2 ± 4.5

P < 0.007

2.5

 

mL/kg·FFM

47.4 ± 6.4

58.4 ± 7.7

P < 0.0001

2.4

 

%predicted

115.5 ± 25.1

134.6 ± 28.0

P < 0.0001

2.7

Wmax

W

200.0 ± 45.4

216 ± 42.2

P < 0.0001

0.8

 

W/kg·FFM

3.4 ± 0.6

3.9 ± 0.5

P < 0.0001

1.2

HRmax cycle ergometer

beats/min

182.6 ± 7.1

185.3 ± 7.1

ns

na

RER

 

1.2 ± 0.07

1.2 ± 0.06

ns

na

VO2 peak/HRmax

mL/beat

15.2 ± 2.2

17.6 ± 2.7

P < 0.001

1.6

Modified shuttle walk

    

Distance completed

m

775.0 ± 213.9

1026.7 ± 229.5

P < 0.0001

2.5

HRmax shuttle

beats/min

187.8 ± 5.0

187.5 ± 4.2

ns

na

  1. VO2 peak = peak oxygen uptake; FFM = fat-free mass; Wmax = maximal workload; HRmax = maximum heart rate; RER = respiratory exchange ratio; VO2 peak/HRmax = oxygen pulse. ns = not significant; na = not applicable