Table 1. Summary of units of analysis.
Reference Unit Sample size (control group size) Participants description Mean age (SD) Training load (Duration, Frequency, Volume, Rest, Intensity, Exercise) Outcome measure, Experimental group size Calculated Effect Size [CI at 95%]
Komi et al., 1978 1 n = 12(6)Twin pairs (2w, 4m)14 (0.9) years old D: 14 w, F: 4 days/w, V: 10 · 1, R: 30 sec, I: 5 sec at MVCE: ISO knee extension ISO MVC n=6 0.36 [0.03 to 0.69]
Lagerquist et al., 2006 2 n = 16(6)Unknown (10w, 6m)21-42 years old D: 5 w, F: 3 days/w, V: 5 · 8, R: 60 sec, I: 6 sec at MVCE: ISO ankle dorsal flexion ISO MVC n=10 0.72 [0.46 to 0.98]
Lepley & Palmieri-Smith, 2014 3 n = 18(9), Moderatelly active adults (10w, 8m), 22.95 (3.6) years old D: 8 w, F: 3 days/wV: 8 · 10, R: 120 secI: PT at -60º·sE: ECC knee extension CON 30º·s-1 n=9 0.84 [0.61 to 1.06]
4 CON 60º·s-1 0.81 [0.58 to 1.04]
5 ECC 30º·s-1 1.35 [1.1 to 1.59]
6 ECC 60º·s-1 1.28 [1.04 to 1.52]
Munn et al., 2005 7 n = 111(22), Not trained adults (94w, 21m), 20.6 (6.1) years old D: 8 wF: 3 days/wR: 120 secE: Elbow flexion V: 1 · max, I: 8-RM load at ±140º·s-1 CON 1RM n=22 0.08 [0.01 to 0.17]
8 V: 1 · max, I: 8-RM load at ±50º·s-1 n=23 0 [-0.09 to 0.09]
9 V: 3 · max, I: 8-RM load at ±140º·s-1 n=23 0.13 [0.04 to 0.22]
10 V: 3 · max, I: 8-RM load at ±50º·s-1 n=22 -0.04 [-0.13 to 0.05]
Shaver, 1970 11 n = 40(20) Recreationally active men, 18-20 years old D: 6 w, F: 3 days/w, V: 3 · 10, R: 120 sec, I: 10-RM loadE: Elbow flexion ISO MVC n=20 0.42 [0.32 to 0.62]
Shaver, 1975 12 n = 100(20)Unknown (all men)18-22 years old D: 6 w, F: 3 days/w, V: 3 · 10, R: 120 sec, I: 10-RM loadE: Elbow flexion ISO MVC n=20 0.95 [0.84 to 1.05]
13 n=20 0.96 [0.86 to 1.06]
14 n=20 1.02 [0.92 to 1.13]
15 n=20 0.92 [0.82 to 1.02]
Shields et al., 1999 16 n = 24(8), Not trained men, 26.07 (5.68) years old D: 6 w, F: 5 days/wV: 2 · max, R: 300 sec, E: Isometric handgrip I: 30% MVC ISO MVC n=8 0.05 [-0.2 to 0.29]
17 I: 0% MVC n=8 0.6 [0.35 to 0.85]
Farthing et al., 2005 18 n = 39(14), Slightly trained women, 20.8 (0.4) D: 6 w, F: 4 days/wV: 6 · 8, R: 30 secI: 2 sec at MVCE: Isometric ulnar deviation ISO MVC n=12 2.09 [1.9 to 2.28]
19 n=13 -0.22 [-0.36 to -0.07]
Fimland et al., 2009 20 n = 26(11), Recreationally active adults (17w, 9m), 24 (1.66) years old D: 4 w, F: 4 days/wV: 6 · 6, R: 120 secI: 4 sec at MVCE: Isometric ankle dorsal flexion ISO MVC n=15 1.19 [1.02 to 1.35]
Magnus et al., 2014 21 n = 23(10), Trained adults (12w, 11m), 50 (9.0) years old D: 4 wF: 3 days/wV: 4 · 15R: 60 secI: 15-RM E: Shoulder external rotation ISO MVC n=13 0.54 [0.37 to 0.72]
22 E: Shoulder internal rotation 0.24 [0.06 to 0.41]
23 E: Shoulder adduction 0.26 [0.08 to 0.43]
24 E: Handgrip 0.02 [-0.15 to 0.2]
CON: Concentric Strength; ECC: Eccentric strength; ISO MVC: Isometric Maximal Voluntary Contraction