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The impact of exercise-induced muscle damage on performance test outcomes in elite female basketball players.

Doma, Kenji; Leicht, Anthony; Sinclair, Wade; Schumann, Moritz; Damas, Felipe; Burt, Dean; Woods, Carl
Journal of Strength & Conditioning Research: Post Acceptance: September 11, 2017
doi: 10.1519/JSC.0000000000002244
Original Research: PDF Only

The purpose of this study was two-fold. First, to examine the impact exercise-induced muscle damage (EIMD) on physical fitness qualities following a basketball-specific training session. Secondly, to determine the reproducibility of the sport-specific performance measures in elite female basketball players. Ten elite female basketball players (age 25.6 +/- 4.5 years; height 1.8 +/- 0.7m; body mass 76.7 +/- 8.3kg) undertook a 90-minute training session involving repeated jumping, sprinting and game-simulated training. Indirect muscle damage markers (i.e., countermovement jump [CMJ], delayed-onset of muscle soreness [DOMS] and creatine kinase [CK]) and sport-specific performances (i.e., change of direction [COD] and suicide test [ST]) were measured prior to and 24 hours post training. These measures were also collected one week following training to determine the reproducibility of the basketball-specific performance measures. A significant reduction in lower-body power (-3.5+/-3.6%; P<0.05), whilst a significant increase in DOMS (46.7+/-26.3%; P<0.05) and CK (57.6+/-23.1%; P<0.05) was observed 24 hours post exercise. The ST was also significantly increased (2.1+/-1.8%; P<0.05), although no difference was observed for COD (0.1+/-2.0%; P>0.05). The intra-class correlation coefficient and coefficient of variation for the COD and ST were 0.81 and 0.90, respectively, and 1.9% and 1.5%, respectively. In conclusion, appropriate recovery should be considered the day following basketball-specific training sessions in elite basketball players. Furthermore, this study showed the usability of performance measures to detect changes during periods of EIMD, with acceptable reproducibility and minimal measurement error.

Copyright (C) 2017 by the National Strength & Conditioning Association.