From: Isometric Strength Database for Muscle Maximal Voluntary Endurance Field Tests: Normative Data
Muscle isometric tests | B1 (sec.) Mean ± SD | A2 (sec.) Mean ± SD | Bias (sec.) Mean ± SD | CV (%) | ICC [95% CI] | 95% LOA (sec.) | SEM (sec.) | SEM (%) | |
---|---|---|---|---|---|---|---|---|---|
Lower | Upper | ||||||||
Trunk flexor muscles | 145.2 ± 79.3 | 150.8 ± 78.9 | −5.6 ± 10.2 | 5.1 | 0.995 [0.983‑0.998] | −25.66 | 14.46 | 0.72 | 0.50 |
Back extensor muscles | 207.4 ± 81.9 | 211.8 ± 80.2 | −4.5 ± 13.0 | 4.5 | 0.993 [0.982‑0.997] | −30.01 | 21.11 | 1.09 | 0.52 |
Right quadratus lumborum muscles | 77.5 ± 36.0 | 82.6 ± 36.6 | −5.1 ± 9.1 | 9.3 | 0.980 [0.937‑0.993] | −22.80 | 12.70 | 1.28 | 1.61 |
Left quadratus lumborum muscles | 79.2 ± 32.5 | 83.6 ± 29.2 | −4.4 ± 10.1 | 8.6 | 0.969 [0.916‑0.988] | −24.29 | 15.49 | 1.79 | 2.21 |
Quadriceps muscles | 74.1 ± 27.8 | 77.3 ± 27.3 | −3.2 ± 9.7 | 8.7 | 0.966 [0.914‑0.987] | −22.27 | 15.87 | 1.79 | 2.42 |
Hamstrings muscles | 241.8 ± 114.3 | 245.6 ± 109.7 | −3.9 ± 14.5 | 4.6 | 0.996 [0.989‑0.998] | −32.21 | 24.51 | 0.91 | 0.38 |
Back muscles | 185.8 ± 80.6 | 186.6 ± 80.1 | −0.8 ± 15.7 | 5.3 | 0.991 [0.977‑0.996] | −31.51 | 29.91 | 1.49 | 0.80 |
Chest muscles | 74.2 ± 26.2 | 77.7 ± 23.7 | −3.5 ± 13.9 | 11.8 | 0.915 [0.788‑0.966] | −30.81 | 23.81 | 4.06 | 5.37 |