| Influence of stretching and warm-up on achilles tendon material properties. | |
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MedLine Citation:
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PMID: 21733444 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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BACKGROUND: Controversy exists on stretching and warm-up in injury prevention. We hypothesized that warm up has a greater effect on Achilles tendon biomechanics than static stretching. This study investigated static stretching and warm-up on Achilles tendon biomechanics in recreational athletes, in vivo. MATERIALS AND METHODS: Ten active, healthy subjects, 5 males, 5 females, With a mean age of 22.9 years with no previous Achilles tendon injuries were recruited. Typical stretching and warm-up routines were created. Testing was performed in a randomized cross-over design. A custom-built dynamometer was utilized to perform controlled isometric plantarflexion. A low profile ultrasound probe was utilized to visualize the musculotendinous junction of the medial gastrocnemius. An eight-camera motion capture system was used to capture ankle motion. Custom software calculated Achilles tendon biomechanics. RESULTS: Achilles tendon force production was consistent. No statistically significant differences were detected in stretch, stiffness, and strain between pre-, post-stretching, and post-warm-up interventions. CONCLUSION: Stretching or warm-up alone, and combined did not demonstrate statistically significant differences. Stretching and warm-up may have an equivalent effect on Achilles tendon biomechanics. Prolonged and more intense protocols may be required for changes to occur. CLINICAL RELEVANCE: Stretching and warm-up of the Achilles before exercise are commonly practiced. Investigating the effect of stretching and warm-up may shed light on potential injury prevention. |
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Authors:
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Don Young Park; Jonas Rubenson; Amelia Carr; James Mattson; Thor Besier; Loretta B Chou |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Foot & ankle international / American Orthopaedic Foot and Ankle Society [and] Swiss Foot and Ankle Society Volume: 32 ISSN: 1071-1007 ISO Abbreviation: Foot Ankle Int Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-07-07 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9433869 Medline TA: Foot Ankle Int Country: United States |
Other Details:
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Languages: eng Pagination: 407-13 Citation Subset: IM |
Affiliation:
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Stanford, CA; Perth, Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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