The Relationship Between Vertical Jump Power Estimates and Weightlifting Ability: A Field-Test Approach

• Autores: Jon M. Carlock, Sarah L. Smith, Michael J. Hartman, Robert T. Morris, Dragomir Ciroslan, Kyle C. Pierce, Robert U. Newton, Everett A. Harman, William A. Sands, Michael H. Stone
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 18, Nº. 3, 2004, págs. 534-539
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Dialnet Métricas: 14 Citas
• Resumen

  • The purpose of this study was to assess the usefulness of the vertical jump and estimated vertical-jump power as a field test for weightlifting. Estimated PP output from the vertical jump was correlated with lifting ability among 64 USA national-level weightlifters (junior and senior men and women). Vertical jump was measured using the Kinematic Measurement System, consisting of a switch mat interfaced with a laptop computer. Vertical jumps were measured using a hands-on-hips method. A counter-movement vertical jump (CMJ) and a static vertical jump (SJ, 908 knee angle) were measured. Two trials were given for each condition. Testretest reliability for jump height was intra-class correlation (ICC) 5 0.98 (CMJ) and ICC 5 0.96 (SJ). Athletes warmed up on their own for 2�3 minutes, followed by 2 practice jumps at each condition. Peak power (PP) was estimated using the equations developed by Sayers et al. (24). The athletes� current lifting capabilities were assessed by a questionnaire, and USA national coaches checked the listed values. Differences between groups (i.e., men versus women, juniors versus resident lifters) were determined using t-tests (p <= 0.05). Correlations were determined using Pearson�s r. Results indicate that vertical jumping PP is strongly associated with weightlifting ability. Thus, these results indicate that PP derived from the vertical jump (CMJ or SJ) can be a valuable tool in assessing weightlifting performance.