If no pain initially but only starts after about 3k's it's a good sign that it's tendon and not bone.Went for a run yesterday after a long hiatus with injuries. Was okay, at one stage everything started to go fuzzy and wobbling, with pain starting again in knee and hip joint.
Will see how things are tomorrow afternoon to go for a run again.
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During a run the quad muscle starts to tension, puts pressure on both insertion points - knee and hip thus causing irritation.
Try stretching quads, tfl and psoas muscles to reduce tension. This is great move but modify it by doing a leaning over to opposite side and twisting the torso.
