After prolonged sitting, which muscle should be stretched?

After prolonged sitting, it is important to stretch the rectus femoris. This muscle is part of the quadriceps group, which is primarily responsible for extending the knee and flexing the hip. When a person sits for an extended period, the hip flexors, including the rectus femoris, become shortened due to the hip being in a flexed position. Stretching this muscle helps to alleviate tightness and discomfort, encourages proper posture, and promotes better mobility and function in activities such as walking and running.

The other muscles mentioned may not be as directly impacted by prolonged sitting. The rectus abdominis, while important for core stability, is not typically tight after sitting. The IT band runs along the outer thigh and does not usually require stretching in the same context as hip flexors. The vastus lateralis, another quadriceps muscle, is more involved in knee stabilization during activities rather than being specifically affected by prolonged sitting. Therefore, focusing on the rectus femoris after sitting is essential for restoring proper muscle length and function.