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How to Strengthen the Vastus Medialis Muscle

by
author image Matthew Schirm
Matthew Schirm has worked in the sports-performance field since 1998. He has professional experience as a college baseball coach and weight-training instructor. He earned a Master of Science in human movement from A.T. Still University in 2009.
How to Strengthen the Vastus Medialis Muscle
A man is doing a barbell squat. Photo Credit Ibrakovic/iStock/Getty Images

The vastus medialis is one of the four quadriceps muscles that span the front of your thighs. The muscle attaches to the top, front portion of the femur, or thigh bone, on top and to your knee via the quadriceps tendon on the bottom. Along with the other three quadriceps muscles, the vastus medialis extends your knee, or increases the angle between your lower leg and upper leg. Strengthening the muscle, therefore, requires repeatedly extending your knees against external resistance as part of a well-designed weight-training program. Consult a personal trainer to develop a program that's tailored to your goals and needs.

Step 1

Complete a five- to 15-minute general warmup period by cycling, jogging, jumping rope or walking at a low intensity.

Step 2

Stand upright with your feet shoulder-width apart, then flex your left knee until you feel a gentle stretch through your quadriceps. Return to the starting position immediately and repeat with your right leg. Complete at least 10 repetitions with each leg.

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Step 3

Hold a barbell across your shoulders and upper back while standing erect with your feet slightly wider than your shoulders and your toes directed forward. Squat slowly, keeping your spine straight, until your thighs are parallel to the floor, then powerfully extend your hips and knees to return to the starting position. Perform three to six sets of no more than six repetitions.

Step 4

Hold dumbbells just outside your hips from a standing position with your feet about 6 inches apart. Step forward 2 to 3 feet with your left foot, then squat after your foot is secure on the floor. Stop when your left thigh is parallel to the floor, then powerfully stand up and step back to the starting position. Repeat with your right leg and continue alternating sides for eight to 12 repetitions. Complete three sets.

Step 5

Sit on a leg-extension weight machine with your lower legs hanging off the edge of the chair and your feet under the padded foot bar. Hold the handles on the sides of the seat to secure your body, then repeatedly extend your knees to lift the bar and let it back down slowly. Perform three sets of eight to 12 repetitions.

Step 6

Perform the workout two or three times per week on nonconsecutive days. Start with three sets of six repetitions for the squat and three sets of 12 repetitions for the lunge and leg-extension exercises. Increase the weight every two or three weeks as you increase the number of sets and decrease the number of repetitions for the squat and decrease the number of repetitions for the other two exercises.

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References

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