Table 2.
Baseline, 12-week intervention and 6-month follow-up comparisons for habitual physical activity (IPAQ), nutrition (NZANS), physical activity enjoyment (PACES), and aerobic capacity (VO2max).
MICT+RT (n = 11) | HIIT+RT (n = 12) | β | SE β | Z statistic | P | β Confidence interval | |
---|---|---|---|---|---|---|---|
IPAQ | |||||||
Moderate METmin/wk | 480 (290, 1,435) | 690 (380, 1,234) | |||||
12-week intervention | 1,185 (320, 2,520) | 1,023 (473, 1,474) | 435.80 | 498.44 | 0.87 | 0.382 | −541.12–1412.72 |
6-month follow-up | 1,650 (960, 3,095) | 1,620 (420, 2,050)a | 1395.48 | 503.08 | 2.77 | 0.006** | 409.46–2381.50 |
Group*Time interaction | −312.10 | 665.97 | −0.47 | 0.639 | −1617.37–993.18 | ||
Total METmin/wk | 1,632 ± 1,017 | 1,808 ± 1,315 | |||||
12-week intervention | 2,435 ± 1,816 | 2,371 ± 1,850 | 802.85 | 480.32 | 1.67 | 0.095 | −138.57–1744.26 |
6-month follow-up | 2,951 ± 2,478 | 2,763 ± 2,591a | 1399.65 | 487.19 | 2.87 | 0.004** | 444.76–2354.53 |
Group*Time interaction | −363.46 | 733.54 | −0.50 | 0.620 | −1801.18–1074.25 | ||
Sitting hours | 76.4 ± 24.1 | 80.1 ± 21.4 | |||||
12-week intervention | 75.4 ± 26.4 | 70.7 ± 24.5 | −1.03 | 4.75 | −0.22 | 0.829 | −10.33–8.28 |
6-month follow-up | 72.2 ± 28.8 | 68.2 ± 23.9 a | −5.14 | 4.88 | −1.05 | 0.293 | −14.7–4.43 |
Group*Time interaction | 6.26 | 12.55 | 0.50 | 0.618 | −18.34–30.86 | ||
NZANS | |||||||
Refined CHO (/50) | 10.0 (4.5, 15.5) | 6.0 (1.5, 10.5) | |||||
12-week intervention | 8.0 (2.0, 12.0) | 6.0 (3.5, 8.0) | −3.55 | 1.62 | −2.19 | 0.029* | −6.72–−0.37 |
6-month follow-up | 10.0 (3.5, 12.0) | 6.0 (4.0, 9.0)a | −1.07 | 1.66 | −0.65 | 0.518 | −4.32–2.18 |
Group*Time interaction | −5.32 | 3.25 | −1.64 | 0.102 | −11.70–1.05 | ||
Total (/200) | 52.1 ± 14.6 | 47.0 ± 16.2 | |||||
12-week intervention | 44.6 ± 15.4 | 41.8 ± 14.3 | −7.48 | 2.20 | −3.41 | 0.001** | −11.79–−3.18 |
6-month follow-up | 47.4 ± 15.0 | 42.4 ± 10.9 a | −4.95 | 2.26 | −2.19 | 0.029* | −9.39–−0.51 |
Group*Time interaction | −7.43 | 7.06 | −1.05 | 0.293 | −21.26–6.40 | ||
PACES (/80) | 64.0 (63.5, 72.5) | 65.5 (59.0, 77.3) | |||||
12-week intervention | 72.0 (69.0, 75.5) | 76.5 (73.0, 78.3) | 5.27 | 1.90 | 2.78 | 0.006** | 1.55–9.00 |
6-month follow-up | 71.0 (67.5, 75.5) | (70.0 63.0, 76.5) a | 3.96 | 1.95 | 2.03 | 0.042* | 0.14–7.79 |
Group*Time interaction | −3.11 | 4.74 | −0.66 | 0.512 | −12.41–6.19 | ||
VO2max | 22.7 ± 5.3 | 20.4 ± 6.6 | |||||
12-week intervention | 27.3 ± 5.5 | 24.3 ± 6.3 | 4.64 | 0.74 | 6.30 | <0.001*** | 3.19–6.08 |
6-month follow-up | 25.5 ± 5.1 | 23.2 ± 6.8 a | 3.31 | 0.76 | 4.35 | <0.001*** | 1.82–4.80 |
Group*Time interaction | −3.85 | 3.16 | −1.22 | 0.224 | −10.05–2.35 |
Data are median (interquartile range), means ± standard deviation.
n = 11. Statistical significance is reported as follows:
P < 0.05,
P < 0.01,
P < 0.001 for within group analysis.
CHO, carbohydrates; HIIT, high-intensity interval training; IPAQ, International Physical Activity Questionnaire; MET, metabolic equivalent; min/wk, minutes per week; MICT, moderate-intensity continuous training; NZANS, New Zealand Adult Nutrition Survey; PACES, Physical Activity Enjoyment Scale; VO2max, maximum aerobic capacity (mL/kg/min); (/50), possible 50 maximum; (/80), possible 80 maximum; (/200), possible 200 maximum.