Virasana, Hero's pose, is a classic yoga posture that can serve as a stretch for the quadriceps and top of the feet, as a resting position between more active asanas, or as a great alternative to other seated postures for pranayama and meditation. However, there's a bit of controversy over the alignment of the feet. Should they point straight back? Or angle outward a bit, as illustrated in the attached image?
In the following video, which was shot during a recent ASFYT course in NYC, Jason makes the case for the latter by showing with the bones how maintaining a straight line along the anterior tibia through the top of the foot helps prevent rotation of the tibia relative to the femur and preserves a healthy alignment between the femoral and tibial condyles. Please note that the video doesn't really dive into some of the other common concerns in Virasana, such as how much medial rotation is healthy (too much can cause compression in the hip joints and varies from one person to the next), or how to modify for tightness in the quadriceps or top of the feet using blocks and blankets. However, in general we're fans of preventing compression in the joints, being comfortable, and using props... as you'll see in the video. Enjoy, and let us know your thoughts in the comments!