Table 3

Characteristics of physical and physiological variables: HIT and control group at baseline and post-intervention
Characteristic Baseline Post-intervention Mean difference Effect size Within group Between groups
(95%CI) (Power) P- value P-value
(Post Intervention)
Stature (cm) 0.821
HIT (42) 170.2 ± 8.3 171.1 ± 8.3 0.9 (0.6 to 1.3) 0.76 (95%) 0.000
Control (46) 171.6 ± 8.2 172.5 ± 8.2 0.9 (0.6 to 1.2) 0.87 (95%) 0.000
Mass (kg) 0.918
HIT (38) 70.4 ± 8.9 70.2 ± 9.0 0.2 (-0.8 to 0.3) 0.350
Control (47) 71.9 ± 9.7 72.4 ± 9.4 0.5 (0.3 to 0.9) 0.32 (56%) 0.036
BMI 0.168 0.842
HIT (38) 21.5 ± 2.4 21.3 ± 2.3 0.2 (0.1 to 0.5 0.178
Control (46) 22.6 ± 2.6 22.3 ± 2.5 0.3 (-0.2 to 0.4)
Waist circumference (cm) 0.695
HIT (42) 75.3 ± 6.7 75.3 ± 6.7 0.002 (-0.7 to 0.7) 0.995
Control (47) 73.9 ± 5.9 75.4 ± 6.2 1.5 (1.0 to 2.0) 0.91 (99.9%) 0.000
Systolic BP (mmHg) 0.146
HIT (38) 119 ± 13 114 ± 13 4.9 (-8.4 to -1.4) 0.46 (78.6%) 0.008
Control (39) 119 ± 14 116 ± 15 3.3 (-7.4 to 0.8) 0.109
Diastolic BP (mmHg) 0.672
HIT (38) 69 ± 11 68 ± 9 0.9 (-5.5 to 3.7) 0.689
Control (39) 70 ± 12 66 ± 12 3.5 (-8.3 to 1.3) 0.144
CMJ (cm) 0.042
HIT (41) 30.7 ± 6.7 31.7 ± 7.1 1.0 (0.3 to 1.6) 0.49 (86.6%) 0.003
Control (38) 31.8 ± 6.6 29.7 ± 6.3 2.1 (-3.0 to -1.1) 0.72 (99.1%) 0.000
10 m sprint (s) 0.003
HIT (37) 2.06 ± 0.26 1.97 ± 0.21 0.09 (-0.12 to -0.05) 0.78 (99.6%) 0.000
Control (37) 2.04 ± 0.20 2.01 ± 0.18 0.03 (-0.01 to 0.06) 0.167
5-0-5 agility (s) 0.095
HIT (42) 2.58 ± 0.28 2.54 ± 0.30 0.05 (-0.10 to 0.01) 0.090
Control (37) 2.45 ± 0.25 2.58 ± 0.28 0.13 (-0.18 to -0.07) 0.79 (99.7%) 0.000
CRF (Shuttles) 0.277
HIT (41) 79 ± 25 84 ± 26 4.6 (2.8 to 6.5) 0.78 (99.8%) 0.000
Control (47) 82 ± 25 78 ± 22 3.4 (-6.9 to 0.1) 0.056

Abbreviations: HIT High Intensity group, BP Blood Pressure, CRF CRF, CMJ Counter movement jump, CI confidence interval. Paired samples t-test was used to establish differences between post-intervention measures for each group. ANCOVA was used to test differences between the groups at post-intervention adjusted for the covariates (baseline age, sex, maturation, physical activity, total dietary fat, saturated fat and kcal/d difference as well as differences in waist circumference and shuttle run score) where appropriate.

Buchan et al.

Buchan et al. BMC Public Health 2013 13:498   doi:10.1186/1471-2458-13-498

Open Data