Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7290905 | Human Movement Science | 2018 | 11 Pages |
Abstract
The scientific literature was systematically searched in eight databases, last run on March 14th, 2017. Cross-sectional studies focused on the association between SMA features and vertical jumping performance were selected. A random-effects model was used to analyze the influence of lower-limb SMA and maximal jump height. A total of 11 studies were included in the qualitative synthesis and 6 studies were selected for meta-analysis. 250 correlations were reviewed across studies. The vast majority were either not statistically significant (185; 74%), weak or very weak (169; 68%) for different jump modalities; counter-movement jump (CMJ), squat jump (SJ), and drop jump. There was insufficient data to perform meta-analysis on muscles other than vastus lateralis for CMJ and SJ. The meta-analyses did not yield any significant association between vastus lateralis SMA and SJ height. Only a significant overall association was shown between vastus lateralis thickness and CMJ height (summary-râ¯=â¯0.28; 95% confidence interval (CI)â¯=â¯â0.05 to 0.48; pâ¯=â¯.059) for a 90% CI level. No differences were found between summary-r coefficients for SMA parameters and jump height during both jumps (CMJ: Ï2â¯=â¯2.43; dfâ¯â¯â¯=â¯2; pâ¯=â¯.30; SJ: Ï2â¯=â¯0.45; dfâ¯=â¯2; pâ¯=â¯.80) with a low heterogeneity ratio. Current evidence does not suggest a great influence of lower-limb SMA on vertical jumping performance in humans.
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Authors
J.D. Ruiz-Cárdenas, J.J. RodrÃguez-Juan, J. RÃos-DÃaz,