Table 2.
Cardiovascular adaptions and body composition.
| Effect parameter | HIIT | Standard care | Group × time interaction | ||||
|---|---|---|---|---|---|---|---|
| Pre | Post | n | Pre | Post | n | ||
| VO2submax (mL/min) | 1386 [1335; 1438] | 1380 [1329; 1432] | 59 | 1427 [1382; 1472] | 1392 [1347; 1437] | 76 | P = 0.14 |
| HRsubmax (BPM) | 105 [101; 109] | 100 [96; 104]* | 54 | 106 [102; 109] | 104 [101; 108] | 67 | P < 0.05 |
| HRmax (BPM) | 142 [136; 147] | 142 [137; 147] | 56 | 141 [136; 146] | 140 [135; 145] | 68 | P = 0.35 |
| VEmax (L/min) | 83 [77; 89] | 96 [91; 102]*,† | 60 | 82 [77; 88] | 82 [76; 87] | 76 | P < 0.001 |
| Total body weight (kg) | 90 [84; 96] | 89 [83; 95] | 34 | 92 [87; 98] | 92 [87; 98] | 39 | P = 0.18 |
| SMM (kg) | 36 [34; 38] | 36 [34; 38] | 34 | 35 [33; 37] | 35 [33; 37] | 39 | P = 0.20 |
| FM (kg) | 26 [22; 30] | 24 [21; 28]* | 34 | 30 [27; 34] | 30 [26; 33] | 39 | P < 0.05 |
| %FAT (%) | 28 [25; 31] | 27 [24; 30]*,† | 34 | 32 [29; 35] | 32 [29; 34] | 39 | P < 0.001 |
Values are presented as means (with 95% confidence intervals) from a linear mixed-model with group, time and group × time interaction as fixed factors.
HIIT high-intensity interval training, VO2submax submaximal oxygen uptake, HRrest resting heart rate, HRsubmax submaximal heart rate, HRmax maximal heart rate, VEmax maximal ventilation, SMM skeletal muscle mass, FM body fat mass, %FAT body fat percentage.
If a significant effect of group × time interaction existed, the result of the post hoc analysis is indicated by *P < 0.001 compared with pre-intervention and †P < 0.05 compared to standard care.