excerpt taken from:
ISSA : Fitness - The Complete Guide
Fredrick C. Hatfield, Ph.D. aka 'Dr. Squat'
Chapter 11.33
The quadriceps muscles can contract more efficiently when the feet are pointing slightly outward. They should never point straight ahead. If you squat with a very wide stance, your adductors tend to assist the quads. This can result in stress to the medial collateral ligament, abnormal cartilage-loading, and improper patellar-tracking.
Make sure that your knees point in the same direction your feet are pointing during the descent and ascent. Because of weak quads, many lifters inadvertently turn their knees inward during the ascent, placing great stress on the medial ligaments of the knee.
Although many top bodybuilders advocate a very close stance for the purpose of isolating the outer quads, this is a myth, and it places you at risk, particularly since you???ll have to use a lot of back to execute the lift, or (if you use heels) place great shear and compression on the knees. The safest way to squat is to put your feet in a position where they can generate the greatest opposing force to the weight (???the athletic position???).
ISSA : Fitness - The Complete Guide
Fredrick C. Hatfield, Ph.D. aka 'Dr. Squat'
Chapter 11.33
The quadriceps muscles can contract more efficiently when the feet are pointing slightly outward. They should never point straight ahead. If you squat with a very wide stance, your adductors tend to assist the quads. This can result in stress to the medial collateral ligament, abnormal cartilage-loading, and improper patellar-tracking.
Make sure that your knees point in the same direction your feet are pointing during the descent and ascent. Because of weak quads, many lifters inadvertently turn their knees inward during the ascent, placing great stress on the medial ligaments of the knee.
Although many top bodybuilders advocate a very close stance for the purpose of isolating the outer quads, this is a myth, and it places you at risk, particularly since you???ll have to use a lot of back to execute the lift, or (if you use heels) place great shear and compression on the knees. The safest way to squat is to put your feet in a position where they can generate the greatest opposing force to the weight (???the athletic position???).