Table 4.
Beta coefficients and cumulative R2* values derived from stepwise multiple regression models
| Parameters | Muscle fatigue (VAS score, 0–100 mm)
|
|||||
|---|---|---|---|---|---|---|
| Mild (5–44)
|
Moderate (45–74)
|
Severe (75–100)
|
||||
| R2* (β) | 95% CI | R2* (β) | 95% CI | R2* (β) | 95% CI | |
| Body weight (kg) | 22.5 (0.42) | 85 (60–87) | 18.2 (0.22) | 95 (86–100) | 16.9 (0.32) | 86 (81–100) |
| Age (years) | 12.1 (0.65) | 75 (60–95) | 17.4 (0.35) | 94 (87–100) | 10.2 (0.55) | 94 (85–98) |
| BMI (kg/m2) | 7.5 (0.25) | 94 (86–98) | 7.5 (0.15) | 90 (73–97) | 6.9 (0.25) | 89 (87–100) |
| Vitamin D (nmol/L) | 24.1 (0.25) | 82 (75–97) | 14.1 (0.45) | 76 (72–100) | 11.8 (0.85) | 94 (73–98) |
| Calcium (mg/dL) | 9.3 (0.44) | 82 (75–97) | 5.8 (0.24) | 89 (87–100) | 6.1 (0.34) | 95 (88–100) |
| Physical activity level (MET min/week) | 6.9 (0.25) | 85 (56–96) | 2.5 (0.75) | 95 (88–100) | 3.8 (0.49) | 90 (46–95) |
| TAC (nmol/μL) | 3.4 (0.25) | 94 (72–100) | 8.6 (0.65) | 89 (87–100) | 5.7 (0.48) | 69 (52–96) |
| ΣR2 (%) | 85.8 | 96 (87–100) | 74.1 | 95 (88–100) | 61.4 | 90 (46–95) |
Note:
*
P<0.05.
Abbreviations: BMI, body mass index; CI, confidence interval; MET, metabolic equivalent; TAC, total antioxidant capacity; VAS, visual analog scale.