Abstract
Knee extension exercise is an important part of knee rehabilitation. Clinicians prescribe non-weight bearing exercise initially and progress patients to weight bearing exercise once they can perform a straight leg raise (SLR). Compare VM activation during a SLR and weight bearing exercises. One-way repeated measures design. University Laboratory. Fifteen healthy subjects. One SLR exercise and 6 weight-bearing knee extension exercises. Electromyographic amplitudes for the VM expressed as a percent maximum voluntary isometric contraction. The SLR had greater activation than the single leg stance and bilateral squat exercises. The step-up and unilateral leg press exercises had the greatest activation. SLR performance can be an important indicator for exercise progression. These results provide foundational knowledge to assist clinicians with exercise prescription.
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