cohort
    1998

    Heavy-load eccentric calf muscle training for the treatment of chronic Achilles tendinosis

    Alfredson H, Pietilä T, Jonsson P, Lorentzon R

    Published in American Journal of Sports Medicine

    Abstract

    Prospective study of 15 recreational athletes with chronic Achilles tendinosis unresponsive to conventional nonsurgical treatment, evaluating the effect of a 12-week heavy-load eccentric calf muscle training program.

    Methodology

    15 patients performed painful heavy-load eccentric calf raises twice daily for 12 weeks; pain and strength were measured pre/post.

    Key Findings

    All 15 patients returned to pre-injury activity level with significantly reduced pain and increased calf strength after training, avoiding surgery.

    Conclusions

    Heavy-load eccentric calf muscle training is an effective, low-cost conservative treatment for chronic Achilles tendinosis, potentially avoiding surgery.

    Limitations

    Very small sample size (n=15); no randomization or control group; short-term follow-up; single-center study; potential selection bias.

    Related Health Concerns

    Study Details

    Year:1998
    Sample Size:15
    Duration:12 weeks
    Quality Score:6/10

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