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Alpine Skiing With total knee ArthroPlasty (ASWAP): effects on strength and cardiorespiratory fitness
Salzburg Univ, Dept Sport Sci & Kinesiol, A-5400 Salzburg, Austria.
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. Salzburg Univ, Dept Sport Sci & Kinesiol, A-5400 Salzburg, Austria. (NVC)ORCID iD: 0000-0002-6685-1540
Salzburg Univ, Dept Sport Sci & Kinesiol, A-5400 Salzburg, Austria.
Salzburg Univ, Dept Sport Sci & Kinesiol, A-5400 Salzburg, Austria.
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2015 (English)In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 25, 16-25 p.Article in journal (Refereed) Published
Abstract [en]

This study investigated the effect of a 12-week recreational skiing intervention on lower limb muscle strength and cardiorespiratory fitness in participants with unilateral total knee arthroplasty (TKA). Twenty-seven older adults (70 +/- 5 years) were assigned to the intervention (n=13) or control group (n=14) after surgery (2.5 +/- 1 years). Leg muscle strength was measured using an IsoMed 2000 dynamometer and cardiorespiratory fitness was determined by cycle ergometry before and after the intervention as well as after an 8-week retention period. The skiing intervention led to increased muscle strength in the operated leg during unilateral single joint isometric extension (maximal force: 11%; P<0.05; rate of torque development: 24%; P<0.05) and during the unilateral multi-joint isokinetic single leg strength test (8%; P<0.05). This resulted in a decreased asymmetry index in the isokinetic test (13% to 5%; P<0.05). These adaptations remained unchanged toward the retention test. No effect was observed for cardiorespiratory fitness. The results demonstrate that muscle contraction forces required during recreational skiing in individuals with TKA seem adequate and effective to increase quadriceps and hamstrings muscle strength in the initially weaker operated leg and to reduce an augmented post-operative asymmetry index.

Place, publisher, year, edition, pages
2015. Vol. 25, 16-25 p.
Keyword [en]
Isometric strength, isokinetic strength, knee replacement, rate of torque development, winter sport
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:miun:diva-25677DOI: 10.1111/sms.12475ISI: 000356443100004PubMedID: 26083698Scopus ID: 2-s2.0-84930980985OAI: oai:DiVA.org:miun-25677DiVA: diva2:849167
Available from: 2015-08-27 Created: 2015-08-18 Last updated: 2015-09-23Bibliographically approved

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