Variable | Group | Pre (mean ± |
Post (mean ± |
|||
---|---|---|---|---|---|---|

1RM |
IRT | 77.50 (8.22) | 81.17 (9.65) | .932 | .192 |
.013 |

TRT | 78.80 (16.20) | 82.30 (16.93) | ||||

CG | 81.72 (19.58) | 81.00 (18.84) | ||||

BP AV^{-1}) |
IRT | .77 (.11) | .78 (.15) | .943 | .389 |
.018 |

TRT | .74 (.19) | .78 (.17) | ||||

CG | .76 (.21) | .77 (.20) | ||||

BP PV^{-1}) |
IRT | 1.19 (.20) | 1.23 (.23) | .899 | .639 |
.012 |

TRT | 1.15 (.30) | 1.20 (.27) | ||||

CG | 1.20 (.39) | 1.21 (.38) | ||||

BP AP |
IRT | 336.05 (35.10) | 344.01 (56.06) | .940 | .038 |
.003 |

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 |
.011 |

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.