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Article Title

EXAMINING THE EFFECTS OF CORRECTIVE EXERCISES ON NEUROMUSCULAR FUNCTION AND JOINT LAXITY IN THE KNEE

Abstract

M. Nieboer & B. Stockwell
Bethel University, St. Paul, MN

Purpose: Over 250,000 anterior cruciate ligament injuries occur each year, found almost exclusively in athletes. Previous research has shown that decreased lower extremity lean mass (LELM) is associated with greater knee joint laxity (JL) and athletes with increased JL are more likely to sustain injury. Post surgery rehabilitation programs initially focus on isometric exercises. The aim of this study was to analyze the effect of a 4 week eccentric quasi-isometric (EQI) exercise program on neuromuscular function and JL in the knee. Methods: Ten active (≥150 min. exercise/week) males (x̅ age 21.9 years ± 0.5SD ) with no history of knee ligament tears participated in the 4 week EQI exercise program. They participated in pre and post JL tests in their dominant (D) and nondominant (ND) legs, measured by the KT-1000 arthrometer (MedMetric, USA), and tests for Squat Jump (SJ) and Countermovement jump (CMJ) power. Subjects completed 3 exercises twice a week for four weeks. Results: Paired sample t-tests using SPSS software showed significance (p

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