Table 3.
Baseline values (mean ± SD, cm2), longitudinal change (mean ± SD, in %) and sensitivity to change [standardized response mean (SRM)] in thigh muscle and adipose tissue CSAs observed after 12 weeks of lower-limb endurance training using manual and semi-automated segmentation
| SCF | IMF | Quadriceps | Hamstrings | Adductors | Sartorius | |
|---|---|---|---|---|---|---|
| Manual | ||||||
| Baseline (cm2) | 90.4 ± 40.0 | 9.6 ± 2.5 | 47.5 ± 5.1 | 29.4 ± 4.9 | 11.0 ± 4.5 | 3.1 ± 0.6 |
| Change (%) | −6.3 ± 11.1 | −14.0 ± 22.1 | 2.0 ± 6.2 | −0.6 ± 5.3 | −1.6 ± 31.7 | 3.5 ± 6.2 |
| SRM | −0.57 | −0.63 | 0.32 | −0.11 | −0.05 | 0.57 |
| p | 0.023 | 0.013 | 0.183 | 0.623 | 0.823 | 0.022 |
| Semi-automated | ||||||
| Baseline (cm2) | 91.4 ± 41.8 | 15.0 ± 4.2 | 47.3 ± 5.3 | 30.6 ± 3.5 | 10.8 ± 4.3 | 2.8 ± 0.5 |
| Change (%) | −4.8 ± 9.3 | −15.8 ± 28.3 | 1.5 ± 5.3 | 0.4 ± 6.4 | −0.9 ± 22.5 | 8.2 ± 16.3 |
| SRM | −0.51 | −0.56 | 0.27 | 0.06 | −0.04 | 0.50 |
| p | 0.040 | 0.026 | 0.248 | 0.813 | 0.869 | 0.041 |
| Δ (M vs. S-A) | ||||||
| Change (%) | 1.6 (−2.0, 5.1) | −1.8 (−20.6, 17.1) | −0.5 (−1.5, 0.5) | 1.0 (−1.6, 3.5) | 0.8 (−10.6, 12.2) | 4.7 (−2.8, 12.2) |
| p | 0.430 | 0.539 | 0.332 | 0.451 | 0.935 | 0.229 |
Δ mean change manual (M) vs. semi-automated (S-A) in % (95% confidence interval), SRM standardized response mean, p p-value computed using paired t test