Introduction
Methods
Study design and participants
Study procedures
Assessments
Tegner Activity Scale (TAS)
Limb dominance
Single-leg hop test battery with fatigue protocol
Data analysis
Sample size determination
Statistical methods
Results
Entire sample (n = 42) | Female (n = 22) | Male (n = 20) |
p* | |
---|---|---|---|---|
Age (years), mean (SD) | 30.4 (6.6) | 29.7 (7.1) | 31.1 (6.1) | 0.485 |
Height (m), mean (SD) | 172.7 (8.9) | 167 (6.5) | 179.1 (6.6) | < 0.001 |
Weight (kg), mean (SD) | 68.9 (15.7) | 57.7 (6.3) | 81.1 (13.7) | < 0.001 |
BMI (kg/m2) | 22.9 (3.6) | 20.7 (1.8) | 25.2 (3.5) | < 0.001 |
TAS, median (IQR) | 5.5 (3) | 6 (3) | 5 (3) | 0.817 |
Leg dominance (left/right) | 5/37 | 2/20 | 3/17 | – |
Non-fatigued LSI, mean (SD) | 97.7 (4.4) | 97.8 (4.6) | 97.4 (4.2) | 0.774 |
Overall LSI, mean (SD) | 98.8 (4.6) | 99.2 (4.9) | 98.4 (4.4) | 0.605 |
Mean SLHD (cm), mean (SD) | 138.8 (31.4) | 122.5 (25) | 156.6 (28.3) | < 0.001 |
Mean fatigue SLHD (cm), mean (SD) | 128.3 (30.1) | 112.7 (21.2) | 145.4 (29.4) | < 0.001 |
Statistics |
df
| Significance | |
---|---|---|---|
Non-fatigued LSI | 0.961 | 42 | 0.163 |
Overall LSI | 0.983 | 42 | 0.779 |
Mean SLHD (cm) | 0.981 | 42 | 0.693 |
Mean fatigue SLHD (cm) | 0.981 | 42 | 0.686 |
Female (n = 22) | Male (n = 20) | |||||
---|---|---|---|---|---|---|
Dom | Non-dom | Meana
| Dom | Non-dom | Meana
| |
Iso (N), mean (SD) | 124.9 (29.9) | 120.7 (28.7) | 122.8 (28.4) | 189.1 (56.1) | 182 (57.6) | 185.6 (55.4) |
SLHD (cm), mean (SD) | 122.5 (25.8) | 122.6 (24.5) | 122.5 (25) | 158.2 (29) | 155.1 (28.1) | 156.6 (28.3) |
6 m TH (s), mean (SD) | 2.4 (0.3) | 2.5 (0.5) | 2.4 (0.4) | 1.9 (0.3) | 1.9 (0.3) | 1.9 (0.3) |
3 COH (cm), mean (SD) | 328 (85.6) | 329.8 (79.8) | 328.9 (81.4) | 456.2 (106.6) | 449.4 (112.6) | 452.8 (107.5) |
SH (reps), mean (SD) | 36 (9.4) | 34.1 (8.7) | 35 (8.6) | 50.8 (11.4) | 49.2 (13.2) | 50 (12.2) |
Fatigue SLHD (cm), mean (SD) | 111 (20.1) | 114.4 (23.1) | 112.7 (21.2) | 145 (30.2) | 145.9 (29.4) | 145.4 (29.4) |
Limb symmetry indices
Entire sample (n = 42) | Female (n = 22) | Male (n = 20) |
p* | |
---|---|---|---|---|
LSI Iso, mean (SD) | 96.7 (12.1) | 97.2 (11.3) | 96.3 (13.1) | 0.809 |
LSI SLHD, mean (SD) | 99.4 (5.1) | 100.4 (5.3) | 98.3 (4.7) | 0.181 |
LSI 6 m TH, mean (SD) | 95.8 (9.3) | 93.9 (10.6) | 98 (7.2) | 0.159 |
LSI 3 COH, mean (SD) | 100.1 (9.7) | 101.5 (9.1) | 98.5 (10.3) | 0.321 |
LSI SH, mean (SD) | 96.2 (13.7) | 96.2 (17.2) | 96.2 (8.7) | 1.000 |
LSI fatigue SLHD, mean (SD) | 102.1 (7.4) | 102.9 (7.9) | 101.1 (7) | 0.442 |
Effect of fatigue on limb symmetry
Effect of gender, age and TAS on limb symmetry
Effect of fatigue on absolute jumping distance
Reference values
Male | Female | |||||
---|---|---|---|---|---|---|
Mean (SD) | Median | P5* | Mean (SD) | Median | P5* | |
TAS (≤ 5) | 96.91 (4.33) | 97.12 | 87.60 | 95.01 (3.75) | 95.46 | 85.31 |
TAS (> 5) | 96.91 (4.28) | 97.56 | 92.38 | 100.19 (3.87) | 99.88 | 94.05 |
Male | Female | |||||
---|---|---|---|---|---|---|
Mean (SD) | Median | P5* | Mean (SD) | Median | P5* | |
TAS ≤ 5 | 98.41 (4.27) | 98.19 | 91.01 | 96.99 (3.23) | 96.89 | 92.57 |
TAS > 5 | 98.45 (4.89) | 96.60 | 91.79 | 101.01 (5.37) | 102.05 | 89.94 |
Male | Female | |||||
---|---|---|---|---|---|---|
Mean (SD) | Median | P5* | Mean (SD) | Median | P5* | |
TAS ≤ 5 | 143.30 (26.57) | 144.17 | 98.00 | 116.27 (19.52) | 114.83 | 82.67 |
TAS > 5 | 172.91 (21.79) | 177.17 | 145.50 | 127.72 (28.54) | 132.75 | 76.83 |
Male | Female | |||||
---|---|---|---|---|---|---|
Mean (SD) | Median | P5* | Mean (SD) | Median | P5* | |
TAS ≤ 5 | 133.09 (27.88) | 129.00 | 93.50 | 111.85 (10.51) | 115.25 | 95.50 |
TAS > 5 | 160.50 (24.92) | 151.00 | 129.50 | 113.33 (27.67) | 113.50 | 64.00 |