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Table 6 Endurance measures from first and second assessment session*

From: The intra- and inter-rater reliability of five clinical muscle performance tests in patients with and without neck pain

  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
  1. Sec = seconds. * Values presented are mean ± SD. † P values are based on 2-sample independent t-tests.