Table 3. Descriptive statistics (mean ± standard deviation) of strength, power and landing force variables in the three groups.
SFG (n = 19) LFG (n = 19) Control (n = 18) Between-group comparisons
IMTP peak force (N) Pre 1995.8 ± 173.6 1936.1 ± 179.7 1961.3 ± 176.6 F = 0.542; p = 0.585; ηp2 = 0.020
Post 2130.4 ± 182.5 b,c,* 1956.3 ± 174.8 a,* 1975.9 ± 174.8 a F = 5.337; p = 0.008; ηp2 = 0.168
SJ peak force (N) Pre 521.3 ± 74.0 495.0 ± 56.4 488.5 ± 119.9 F = 0.727; p = 0.488; ηp2 = 0.027
Post 565.0 ± 73.0 b,c,* 493.9 ± 54.5 a 487.3 ± 115.7 a F = 4.791; p = 0.012; ηp2 = 0.153
CMJ peak power (W/kg) Pre 31.7 ± 4.7 29.3 ± 4.1 29.7 ± 3.5 F = 1.780; p = 0.179; ηp2 = 0.063
Post 33.5 ± 5.3 b,c,* 29.8 ± 4.4 a,* 29.8 ± 3.3 a F = 4.222; p = 0.020; ηp2 = 0.137
CMJ peak landing force (N) Pre 1643.1 ± 388.5 1691.1 ± 323.3 1698.7 ± 216.9 F = 0.164; p = 0.849; ηp2 = 0.006
Post 1493.5 ± 294.7 b,c,* 1720.5 ± 324.6 a,* 1729.1 ± 208.3 a,* F = 4.105; p = 0.022; ηp2 = 0.134
RSI (A.U.) Pre 1.09 ± 0.15 1.08 ± 0.6 1.07 ± 0.10 F = 0.147; p = 0.864; ηp2 = 0.006
Post 1.18 ± 0.15 b,c,* 1.09 ± 0.6 a 1.08 ± 0.11 a F = 4.321; p = 0.018; ηp2 = 0.140
IMTP: isometric mid-thigh pull test; SJ: squat jump test; CMJ: countermovement jump test; RSI: reactive strength index; a: significantly different
from SFG (p < 0.05); b: significantly different from LFG (p < 0.05); c: significantly different from control (p < 0.05);
*: significant within-group difference (post-pre) for a p < 0.05.