Table 3. Resulting data from the 12-week exercise intervention between groups that exercised either six or two days per week and a sedentary control group.
| Six-day per week group N = 15 | Two-day per week group N = 17 | Control N = 11 | |
|---|---|---|---|
| ExEE/week1 | 2,753.5 ± 561.2* | 1,490.7 ± 503.4* | 0* |
| Percent weight loss2 | -1.48 ± 2.48^ | -0.84 ± 2.72 | +1.45 ± 3.71 |
| ΔFM3 | -1.82 ± 1.51^# | -0.64 ± 0.95* | 0.98 ± 2.62^* |
| ΔFFM4 | 0.38 ± 1.39 | -0.04 ± 0.23 | -0.06 ± 1.36 |
| ΔREE5 | 39.18 ± 151.5 | -38.0 ± 246.5 | -1.13 ± 259.0 |
| ΔRRV healthy food6 | 0.12 ± 0.35 | -0.05 ± 0.41 | -0.01 ± 0.20 |
| ΔRRV junk food7 | -0.12 ± 0.35 | 0.11 ± 1.86 | 0.13 ± 0.36 |
| ΔPmaxTotal8 | 20.36 ± 141.7 | -39.38 ± 93.31 | -14.55 ± 78.87 |
| ΔPmaxhealthy9 | 33.21 ± 131.07 | -36.47 ± 78.78 | -33.25 ± 56.83 |
| ΔPmaxunhealthy10 | -12.86 ± 54.94 | -0.88 ± 23.84 | 21.36 ± 51.17 |
Data are mean ± SD
*, ^: like letters indicate significant differences between groups, P ≤ 0.05.
#Significant change over time (change different from zero) P ≤ 0.05.
1ExEE/week: Exercise energy expenditure (in kilocalories) per week.
2Percent weight loss: kg of weight change (12-week value minus baseline value) / baseline body weight in kg
3ΔFM: kg of fat mass change: (12-week kg of body fat mass minus baseline kg body fat)
4ΔFFM: kg of fat-free mass change (12-week kg of fat-free mass minus baseline kg of fat free mass)
5ΔREE: Changes in REE (12-week value minus baseline value) in kcal/24 hrs.
6ΔRRVhealthy: changes in relative reinforcing value of healthy food assessed via progressive ratio schedule of reinforcement task, calculated as 12-week RRVhealthy−baseline RRVhealthy
7ΔRRVunhealthy: changes in relative reinforcing value of unhealthy food assessed via progressive ratio schedule of reinforcement task, calculated as 12-week RRVunhealthy−baseline RRVunhealthy
8ΔPmaxTotal: changes in total schedules completed for food (healthy + unhealthy) during the progressive ratio schedule of reinforcement task.
9ΔPmaxhealthy: changes in total schedules completed for healthy food option during the progressive ratio schedule of reinforcement task.
10ΔPmaxunhealthy: changes in total schedules completed for unhealthy food option during the progressive ratio schedule of reinforcement task.