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Effect of exercise on ECM collagen damage and ECM protein levels in fatigue damaged tendons. (A) DAF was increased at the insertion of immediate-runners but was decreased in the midsubstance of delayed-runners; (B) Collagen III was increased in the midsubstance on immediate-runners and in the insertion of delayed-runners; (C) Aggrecan and (D) Decorin were not altered in fatigue damaged tendons by exercise.
