Partial protection against muscle damage by eccentric actions at short muscle lengths

Article Abstract:

A study is conducted which investigates the hypothesis that maximal eccentric actions at a short muscle length would fail to confer a protective effect against muscle damage induced by maximal eccentric exercise at a long muscle length. The result shows that contrary to the hypothesis, short extension range from an elbow joint angle of 0.87-1.74 radius (S-ECC) provided partial but effective protection against long extension range of 2.27-3.14 radius (L-ECC).

Science & research, Health aspects, Observations, Musculoskeletal diseases, Strengthening exercises

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How long does the protective effect on eccentric exercise-induced muscle damage last?

Article Abstract:

Research presented concerns the length of the protective 'bout effect,' a physiological process by which new exercises induce damage to skeletal muscle, but the same exercises repeated later create significantly less muscle damage. Participants performed novel eccentric exercises and were placed into three groups of 6, 9, and 12 months, and the protective 'bout effect' was shown for the 6 month group, but not for the 9 and 12 month group.

Sports medicine

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Effect of elbow joint angle on the magnitude of muscle damage to the elbow flexors

Article Abstract:

This article examines the effects of maximal eccentric exercise on tissue damage in elbow flexor muscles. Results indicate that postexercise levels of soreness, muscle damage, creatine kinase activity, and range of motion in elbow flexor muscles are dependent on the elbow joint angle during repetitions.

Usage, Joints, Joints (Anatomy), Creatine kinase, Elbow, Elbow muscles

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