Sex differences in total frontal plane knee movement and velocity during a functional single-leg landing
| Autor: | Walter L. Jenkins, Hannah Welch, Kelsey Williams, Josh Hefner, D.S. Blaise Williams |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male musculoskeletal diseases medicine.medical_specialty Knee Joint Movement Physical Therapy Sports Therapy and Rehabilitation medicine.disease_cause Weight-Bearing 03 medical and health sciences 0302 clinical medicine Jumping Humans Medicine Orthopedics and Sports Medicine Takeoff Orthodontics Sex Characteristics 030222 orthopedics biology business.industry Outcome measures Biomechanics 030229 sport sciences General Medicine musculoskeletal system biology.organism_classification Biomechanical Phenomena body regions Valgus Coronal plane Physical therapy Female business human activities |
| Zdroj: | Physical Therapy in Sport. 24:1-6 |
| ISSN: | 1466-853X |
| DOI: | 10.1016/j.ptsp.2016.09.005 |
| Popis: | Objectives Females land with more knee valgus than males. While most studies have evaluated lower extremity mechanics during double leg landing, most sports require single-leg landing from a double or single leg takeoff. Further, knee movement occurs toward both varus and valgus during functional landing. The purpose of this study was to determine if differences exist between females and males in total frontal plane movement and velocity of the knee during single-leg landing. Design Experimental cohort. Setting Motion analysis laboratory. Participants Forty healthy, physically-active females (n = 20) and males (n = 20). Main outcome measures Three-dimensional motion analysis was completed on the lower extremities during double-leg jumping followed by a single-leg landing. Student's t-tests (p ≤ 0.05) were used to determine if differences exist in frontal plane knee angles (valgus and varus excursion) and angular velocities between females and males. Results Females demonstrated greater knee valgus and varus excursion, and valgus and varus velocities compared to males (p Conclusions These findings suggest that total movement in the frontal plane at the knee may be an important factor in injury mechanics in females. Further, single-leg landing from a functional jump should be considered when comparing landing biomechanics between females and males. |
| Databáze: | OpenAIRE |
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