Force-time curve characteristics of dynamic and isometric muscle actions of elite women olympic weightlifters

G Gregory Haff, Jon M Carlock, Michael J Hartman, J Lon Kilgore, Naoki Kawamori, Janna R Jackson, Robert T Morris, William A Sands, Michael H Stone
Journal of Strength and Conditioning Research 2005, 19 (4): 741-8
Six elite women weightlifters were tested to evaluate force-time curve characteristics and intercorrelations of isometric and dynamic muscle actions. Subjects performed isometric and dynamic mid-thigh clean pulls at 30% of maximal isometric peak force and 100 kg from a standardized position on a 61.0 x 121.9 cm AMTI forceplate. Isometric peak force showed strong correlations to the athletes' competitive snatch, clean and jerk, and combined total (r = 0.93, 0.64, and 0.80 respectively). Isometric rate of force development showed moderate to strong relationships to the athletes' competitive snatch, clean and jerk, and combined total (r = 0.79, 0.69, and 0.80 respectively). The results of this study suggest that the ability to perform maximal snatch and clean and jerks shows some structural and functional foundation with the ability to generate high forces rapidly in elite women weightlifters.

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