Muscle fatigue between isokinetic exercises sets in young women

作者：Celes Rodrigo^*; Cardoso Pereira Maria Claudia; Schwartz Fabiano Peruzzo; Rocha Junior Valdinar de Araujo; Bottaro Martim

来源：Motriz-Revista de Educacao Fisica, 2013, 19(2): 494-501.

DOI：10.1590/S1980-65742013000200027

• Torque
• Muscle fatigue
• Knee extension
• Isokinetic

OBJECTIVE: To examine the effect of two rest interval (RI) on isokinetic Peak Torque (PT) and total work (TW) produced by young women. METHODS: 17 untrained women (27.2 +/- 4.1 yrs; 56.8 +/- 6.9 kg; 162.6 +/- 7.0 cm) performed three sets of 10 unilateral isokinetic knee extension repetitions at 60 degrees and 180 degrees/s with one and two minutes of RI. Statistical evaluation was performed using a two x three ANOVA [RI (one and two minutes) x set (1st, 2nd, 3rd)] with a %26lt; 0.05. RESULTS: One minute was not enough to keep PT and TW between sets (p%26lt;0.05) at 60 degrees (reduction of 15.7% in PT and 19.8% in TW) and 180 degrees/s (reduction of 3.6% in PT and 5.6% in TT). Two minutes was enough only at 180 degrees/s. However, two minutes of RI was greater (p%26lt;0.05) than one minutes at 60 degrees/s for PT during the 2nd and 3rd sets. CONCLUSION: Two minutes is sufficient to keep PT within typical isokinetic resistance training protocols at 180 degrees/s, but not at 60 degrees/s in young women.

• 出版日期2013