Table 4. Effects of a 7-week training program on Strength, Velocity and Power variables in the Bench Press test. Data are means (±SD).
Variable Group Pre (mean ± S) Post (mean ± S) p for Group p for GxTi ES/SP p for Ti ES/SP
1RMBP (kg) IRT 77.50 (8.22) 81.17 (9.65) .932 .192.1/.336 .013.2/.719
TRT 78.80 (16.20) 82.30 (16.93)
CG 81.72 (19.58) 81.00 (18.84)
BP AV(m·s-1) IRT .77 (.11) .78 (.15) .943 .389.03/.209 .018.1/.671
TRT .74 (.19) .78 (.17)
CG .76 (.21) .77 (.20)
BP PV(m·s-1) IRT 1.19 (.20) 1.23 (.23) .899 .639.01/.120 .012.1/.717
TRT 1.15 (.30) 1.20 (.27)
CG 1.20 (.39) 1.21 (.38)
BP AP(W) IRT 336.05 (35.10) 344.01 (56.06) .940 .038.1/.627 .003.1/.849
TRT 317.22 (70.74) 342.84 (69.81)
CG 335.89 (84.64) 337.09 (83.80)
BP PP (W) IRT 608.12 (116.70) 654.46 (163.20) .946 .013.2/.767 .011.1/.737
TRT 581.33 (192.95) 648.44 (193.39)
CG 689.32 (293.85) 669.88 (278.36)
1RM = 1 repetition maximum; AP= Average power; AV = Average velocity; BP = bench press; CG = control group; ES = Effect size; GxTi = group x time; IRT= instability resistance training program; kg = kilogram; m·s= meter.second; Post = posttest; PP = Peak power; Pre = pretest; PV = Peak velocity; SP = statistical power; TRT= traditional resistance training program; Ti = Time; W= watts.
‡ = differences between groups; p < 0.05.