Table 6 Endurance measures from first and second assessment session*
|  | First assessment, first test (n = 63) | First assessment, second test (n = 63) | P-value for group difference†| Second assessment, first test (n = 61) | Second assessment, second test (n = 61) | P-value for group difference†|
|---|---|---|---|---|---|---|
Neck flexor muscle endurance test (supine), holding time, sec | 36.40 (33.25) | 30.92 (25.92) | 0.305 | 34.03 (23.74) | 38.10 (33.94) | 0.445 |
Neck flexor muscle endurance test (sitting 45°), holding time, sec | 82.33 (57.23) | 72.70 (52.83) | 0.328 | 102.11 (82.34) | 85.13 (57.81) | 0.190 |
Neck extensor test, holding time, sec | 36.21 (25.09) | 33.51 (23.56) | 0.535 | 37.02 (28.39) | 38.34 (25.72) | 0.787 |