Table 1.
Demographic characteristics of the participants.
| Variable | Group | M ± SD | P-value | |
|---|---|---|---|---|
| Pre-intervention | Post-intervention | |||
| Height (cm) |
HIIT + Vit D | 178 ± 3.92 | ||
| HIIT + Placebo | 177.9 ± 4.42 | |||
| Vit D | 177.5 ± 4.1 | |||
| Control | 177.3 ± 3.95 | |||
| Weight (kg) |
HIIT + Vit D | 87.25 ± 3.36 | *α82.10 ± 2.91 | ¶ 0.001 |
| HIIT + Placebo | 86.25 ± 2.93 | *α82.40 ± 2.66 | ¶ 0.001 | |
| Vit D | 86.11 ± 2.92 | 86.02 ± 2.88 | 0.41 | |
| Control | 86.06 ± 3.19 | 86.11 ± 3.21 | 0.42 | |
| BMI (kg/m2) |
HIIT + Vit D | 27.23 ± 0.36 | *α25.48 ± 0.40 | ¶ 0.001 |
| HIIT + Placebo | 27.25 ± 0.31 | *α25.85 ± 0.44 | ¶ 0.001 | |
| Vit D | 27.32 ± 0.26 | 27.26 ± 0.25 | ||
| Control | 27.36 ± 0.35 | 27.37 ± 0.34 | ||
| BF (%) |
HIIT + Vit D | 35.18 ± 1.83 | *α30.51 ± 1.88 | ¶ 0.001 |
| HIIT + Placebo | 35.24 ± 1.74 | *α31.08 ± 1.64 | ¶ 0.001 | |
| Vit D | 35.32 ± 1.63 | 35.17 ± 1.62 | 0.35 | |
| Control | 35.39 ± 1.65 | 35.41 ± 1.65 | 0.46 | |
| Vitamin D (ng/ml) |
HIIT+ Vit D | 16.1 ± 1.01 | *€34.6 ± 2.1 | ¶ 0.001 |
| HIIT+ Placebo | 15.86 ± 1.05 | 15.91 ± 0.98 | 0.35 | |
| Vit D | 15.99 ± 0.89 | *€33.9 ± 2.47 | ¶ 0.001 | |
| Control | 15.78 ± 0.96 | 15.77 ± 1.03 | 0.65 | |
HIIT, High-intensity interval training group; Vit D, Vitamin D group; BMI, Body mass index; BF, Body Fat percent; ¶Significant difference compared to the pre-test; *Significant difference compared to the control group; αSignificant difference compared to the Vitamin D group; €Significant difference compared to the HIIT+Placebo group.