Do you exercise regularly? Your lower back and hamstrings may be overworked because of gluteal inhibition. Ever had "disc" pain, a slipped "disc" or "thrown your back out"? The overworked musculature will physiologically tighten and shorten over time, leading to spasms if they are recruited and overused during strenuous work, or exercise (even driving in a car over a length of time). Pain in the knee, ankle, hip, and/or lower back is very common at this stage. The best thing to do is to stretch the hip flexors, using a pillow on the floor for support of your knee (this helps avoid
housemaid's knee), while you have your other leg posted on your foot. Front knee should not track in front of toes.
Hip flexor stretchTry to do 2 sets of 30 seconds, static hold. Do not force into pain, or go too far, as stretching of hip ligaments may occur, which you want to avoid. Squeeze each corresponding gluteus during the stretch (squeeze left glute during left hip flexor stretch, etc). After the stretch, perform glute activation exercises:
30 repetitions each (go easy, i.e.: do 10, at first, if that is all you are capable of, no shame), no resting in between exercises unless form breaks down:
1. Side lying leg abduction
2. 45° Clam shells
3. Glute bridge
4. Quadruped hip extention
5. Bird Dog
6. Single-leg glute bridge
These are glute activation exercises that "awaken" inhibited glutes. Hip flexors should be stretched prior to provide greater "motivation" for gluteal activation via
reciprocal inhibition. If your lower back gets tired, or your hamstring begins to tire [be very careful, it may even spasm painfully if you force through] you are doing the exercises incorrectly. If this occurs: reduce the range-of-motion of the working limbs. Overextension in the glute bridge, e.g., may cause the erector spinae and multifidus to overtake the glutes in muscle activation. Overextension can occur in any of the 6 exercises, so you must be paying attention to the sensations in your body. You must feel the glutes become "pumped up" and tired for correct activation to occur. Once you are finished, you can walk around and see how you feel. Chances are, there will be less strain on your lower back, knees and ankles due to a correction of movement pattern, not to mention the nice sensation of "freedom" in the hip girdle. If this is the case, then these exercises should be performed night and day for a few weeks to neurologically reinforce muscle activation. Afterwards, glute strengthening and hypertrophy training should occur, taking advantage of the new-found neurological activation, which I cannot cover in a forum post.
Brett Contreras provides excellent information about the importance of the gluteals in movement.
Videos for the above exercises are listed on the right panel, below the squatting figure (scroll down):
http://www.t-nation.com/free_online_art ... glute_myth.
Be safe.