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- Title
Alpine Skiing With total knee ArthroPlasty (ASWAP): effects on strength and cardiorespiratory fitness.
- Authors
Pötzelsberger, B.; Stöggl, T.; Lindinger, S. J.; Dirnberger, J.; Stadlmann, M.; Buchecker, M.; Hofstaedter, T.; Gordon, K.; Müller, E.
- Abstract
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 Iso Med 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.
- Subjects
PHYSIOLOGICAL adaptation; ANALYSIS of variance; CARDIOPULMONARY system; EXERCISE tests; HEART beat; LEG; LONGITUDINAL method; SKIING; MUSCLE contraction; MUSCLE strength; MUSCLE strength testing; PHYSICAL therapy; PROBABILITY theory; T-test (Statistics); TIME; TORQUE; TOTAL knee replacement; PAIN measurement; AEROBIC capacity; VISUAL analog scale; PRE-tests &; post-tests; CONTROL groups; REPEATED measures design; OXYGEN consumption; DATA analysis software; DESCRIPTIVE statistics
- Publication
Scandinavian Journal of Medicine & Science in Sports, 2015, Vol 25, p16
- ISSN
0905-7188
- Publication type
Article
- DOI
10.1111/sms.12475