Table 4. Muscle fibre (VL) and capillary analysis.
| Baseline | 12 wks | Change from baseline | Percentage change from baseline | T-distribution | df | With-in group | F-ratio | Time x group | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable | Mean | SD | Mean | SD | Mean | SD | p-value | p-value | ||||
| Fibre type distribution | ||||||||||||
| Type I (%) | ||||||||||||
| THG n = 11 (0) | 47.0 | 14.8 | 39.2 | 14.6 | -7.8 | 16.9 | -16.6% | 1.531 | 10 | 0.157 | 0.033 | 0.859 |
| CON n = 9 (0) | 45.7 | 14.4 | 39.1 | 13.1 | -6.6 | 11.5 | -14.4% | 1.722 | 8 | 0.123 | ||
| Type IIa (%) | ||||||||||||
| THG n = 11 (0) | 37.6 | 11.0 | 44.2 | 9.3 | 6.6 | 13.0 | 17.6% | -1.689 | 10 | 0.122 | 0.629 | 0.438 |
| CON n = 9 (0) | 34.6 | 7.2 | 37.2 | 11.3 | 2.6 | 8.2 | 7.7% | -0.964 | 8 | 0.363 | ||
| Type IIx (%) | ||||||||||||
| THG n = 11 (0) | 15.5 | 9.9 | 16.6 | 10.7 | 1.1 | 11.7 | 7.4% | -0.325 | 10 | 0.752 | 0.216 | 0.648 |
| CON n = 9 (0) | 19.8 | 13.1 | 23.7 | 9.1 | 3.9 | 15.1 | 19.9% | -0.779 | 8 | 0.458 | ||
| Fibre type cross sectional area | ||||||||||||
| Type I (μm2) | ||||||||||||
| THG n = 7 (0) | 5246 | 1055 | 6572 | 2004 | 1326 | 1756 | 25.3% | -1.998 | 6 | 0.093 | 1.573 | 0.234 |
| CON n = 7 (0) | 5125 | 1568 | 5207 | 644 | 82 | 1951 | 1.6% | -0.111 | 0 | 0.915 | ||
| Type IIa (μm2) | ||||||||||||
| THG n = 7 (0) | 7064 | 1300 | 7877 | 3216 | 814 | 3145 | 11.5% | -0.684 | 6 | 0.519 | 0.362 | 0.559 |
| CON n = 7 (0) | 6682 | 2627 | 6653 | 1163 | -30 | 1965 | -0.4% | 0.040 | 6 | 0.970 | ||
| Type IIx (μm2) | ||||||||||||
| THG n = 7 (0) | 6640 | 1902 | 5859 | 2620 | -781 | 3595 | -11.8% | 0.575 | 6 | 0.586 | 0.239 | 0.634 |
| CON n = 7 (0) | 5283 | 2326 | 5222 | 1767 | -61 | 1511 | -1.2% | 0.107 | 6 | 0.918 | ||
| Fibre area percentage distribution | ||||||||||||
| Type I (%) | ||||||||||||
| THG n = 7 (0) | 38.8 | 15.6 | 38.8 | 11.4 | 0.0 | 14.9 | 0.0% | -0.003 | 6 | 0.998 | 0.037 | 0.851 |
| CON n = 7 (0) | 35.4 | 13.0 | 36.9 | 16.2 | 1.6 | 15.7 | 4.5% | -0.266 | 6 | 0.799 | ||
| Type IIa (%) | ||||||||||||
| THG n = 7 (0) | 45.5 | 15.4 | 50.2 | 9.0 | 4.7 | 15.4 | 10.4% | -0.813 | 6 | 0.447 | 0.290 | 0.600 |
| CON n = 7 (0) | 43.5 | 11.1 | 44.2 | 10.5 | 0.7 | 12.6 | 1.6% | -0.144 | 6 | 0.890 | ||
| Type IIx (%) | ||||||||||||
| THG n = 7 (0) | 15.7 | 12.5 | 11.0 | 8.5 | -4.7 | 9.0 | -30.2% | 1.393 | 6 | 0.213 | 0.202 | 0.661 |
| CON n = 7 (0) | 21.2 | 12.5 | 18.9 | 9.4 | -2.3 | 11.0 | -11.0% | 0.560 | 6 | 0.596 | ||
| Capillaries | ||||||||||||
| Cap./fibre | ||||||||||||
| THG n = 7 (0) | 2.1 | 0.3 | 2.2 | 0.6 | 0.1 | 0.8 | 4.8% | -0.444 | 6 | 0.673 | 0.147 | 0.708 |
| CON n = 7 (0) | 1.9 | 0.5 | 1.9 | 0.2 | 0.0 | 0.5 | -0.4% | 0.036 | 6 | 0.973 | ||
| Cap./mm2 | ||||||||||||
| THG n = 7 (0) | 346.4 | 37.4 | 342.3 | 127.9 | -4.1 | 127.0 | -1.2% | 0.086 | 6 | 0.934 | 0.044 | 0.838 |
| CON n = 7 (0) | 355.6 | 90.4 | 339.9 | 50.1 | -15.7 | 72.3 | -4.4% | 0.575 | 6 | 0.586 | ||
*Different from baseline (p≤0.05). Data reflects analysis of muscle biopsies from the men in both the team handball group (THG) and control group (CON) before (baseline) and after (12 wks) the intervention period. Means ± standard deviation at baseline and after 12 wks intervention is presented. Mean change score and standard deviation for each group (change from baseline) and percentage change from baseline is also presented. Table 4 shows furthermore the within-group T-distribution degrees of freedom (df) and p-values, along with F-ratio and between-group p-values.