Sex differences in quadriceps rate of torque development within 1 year of ACL reconstruction
| Autor: | Thomas Birchmeier, Caroline Lisee, Andrew Schorfhaar, Michael Shingles, Ashley N. Triplett, Christopher Kuenze, Luke Wilcox |
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| Rok vydání: | 2019 |
| Předmět: |
Knee function
Adult Male medicine.medical_specialty Time Factors Adolescent Knee Joint Quadriceps strength Physical Therapy Sports Therapy and Rehabilitation Isometric exercise Knee extension Return to sport Quadriceps Muscle 03 medical and health sciences Young Adult 0302 clinical medicine Physical medicine and rehabilitation Sex Factors Isometric Contraction Female patient medicine Humans Orthopedics and Sports Medicine Muscle Strength 030222 orthopedics University community Muscle Weakness Anterior Cruciate Ligament Reconstruction business.industry 030229 sport sciences General Medicine Exercise Therapy Cross-Sectional Studies Female business Sex characteristics Follow-Up Studies |
| Zdroj: | Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine. 38 |
| ISSN: | 1873-1600 |
| Popis: | Objectives To investigate the effect of sex on measures of quadriceps strength, rate of torque development, and knee function during the first year following ACLR. Design Cross-sectional; Setting University community; Participants Sixty individuals (29 men) with unilateral ACLR in the last 12 months. Main outcome measures Participants completed bilateral knee extension maximal voluntary isometric contraction (MVIC, Nm/kg) strength assessments. Rates of torque development (Nm*kg-1*s-1) were assessed from contraction initiation to 100 ms (RTD100) and from 100 ms to 200 ms after contraction initiation (RTD200). The effects of sex MVIC strength, RTD, and limb symmetry were assessed using separate ANCOVAs. Results Women displayed weaker involved limb (Men = 2.72 ± 0.72 Nm*kg-1, Women = 2.01 ± 0.50 Nm*kg-1, p Conclusions Within the first year after ACLR, women displayed bilateral quadriceps weakness and slower involved limb quadriceps RTD when compared to men. Specific focus on facilitating quadriceps hypertrophy and improving neural drive to the quadriceps is indicated when treating female patients attempting to make a return to sport after ACLR. |
| Databáze: | OpenAIRE |
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