Comparison of Muscular Power Between Dominant and Nondominant Legs in Healthy Young Adults Associated With Single-Leg-Dominant Sports

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dc.contributor.authorVaisman, Alex
dc.contributor.authorGuiloff, Rodrigo
dc.contributor.authorRojas, Juan
dc.contributor.authorDelgado, Iris
dc.contributor.authorFigueroa, David
dc.contributor.authorCalvo, Rafael
dc.date.accessioned2022-03-01T20:30:37Z
dc.date.available2022-03-01T20:30:37Z
dc.date.issued2017
dc.description.abstractBackground: Achieving a symmetrical power performance (difference <15%) between lower limbs is generally recommended during sports rehabilitation. However, athletes in single-leg-dominant sports, such as professional soccer players, could develop significant asymmetry between their dominant and nondominant legs, such that symmetry does not act as a viable comparison. Purpose: To (1) compare maximal muscular power between the dominant and nondominant legs in healthy young adults, (2) evaluate the effect of a single-leg-dominant sport activity performed at the professional level, and (3) propose a parameter of normality for maximal power difference in the lower limbs of this young adult population. Study Design: Controlled laboratory study. Methods: A total of 78 healthy, male, young adults were divided into 2 groups according to sport activity level. Group 1 consisted of 51 nonathletes (mean ± SD age, 20.8 ± 1.5 ears; weight, 71.9 ± 10.5 kg) who participated in less than 8 hours a week of recreational physical activity with nonspecific training; group 2 consisted of 27 single-leg-dominant professional soccer players (age, 18.4 ± 0.6 years; weight, 70.1 ± 7.5 kg) who specifically trained and competed at their particular activity 8 hours or more a week. For assessment of maximal leg power, both groups completed the single-leg squat jump test. Dominance was determined when participants completed 2 of 3 specific tests with the same extremity. Statistical analysis included the Student t test. Results: No statistical difference was found for maximal power between dominant and nondominant legs for nonathletes (t ¼ –1.01, P ¼ .316) or single-leg-dominant professional soccer players (t ¼ –1.10, P ¼ .281). A majority (95%) of participants studied showed a power difference of less than 15% between their lower extremities. Conclusion: Among young healthy adults, symmetrical power performance is expected between lower extremities independent of the existence of dominance and difference in sport activity level. A less than 15% difference in power seems to be a proper parameter to define symmetrical power performance assessed by vertical single-leg jump tests.es
dc.description.versionVersión Publicadaes
dc.identifier.citationVaisman, A., Guiloff, R., Rojas, J., Delgado, I., Figueroa, D., & Calvo, R. (2017). Lower Limb Symmetry: Comparison of Muscular Power Between Dominant and Nondominant Legs in Healthy Young Adults Associated With Single-Leg-Dominant Sports. Orthopaedic Journal of Sports Medicine. https://doi.org/10.1177/2325967117744240es
dc.identifier.urihttps://doi.org/10.1177/2325967117744240es
dc.identifier.urihttp://hdl.handle.net/11447/5635
dc.language.isoenes
dc.subjectMuscle poweres
dc.subjectLimb symmetryes
dc.subjectSingle-leg-dominant athleteses
dc.titleComparison of Muscular Power Between Dominant and Nondominant Legs in Healthy Young Adults Associated With Single-Leg-Dominant Sportses
dc.typeArticlees
dcterms.sourceOrthopaedic Journal of Sports Medicinees

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