ArticleExperimental gerontology2017
Knee extensor power asymmetry is unrelated to functional mobility of older adults.
Article in Experimental gerontology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Dose-Response Effect of Dietary Nitrate on Muscle Contractility and Blood Pressure in Older Subjects: A Pilot Study.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021Trial
- Lower-Extremity Muscle Strength Symmetry Assessment Through Isokinetic Dynamometry.Life (Basel, Switzerland) · 2025Article
- A Comprehensive Examination of Age-Related Lower Limb Muscle Function Asymmetries across a Variety of Muscle Action Types.Geriatrics (Basel, Switzerland) · 2024Article
- Effects of high-intensity interval training on lean mass, strength, and power of the lower limbs in healthy old and young people.Frontiers in physiology · 2023Article
- The Associations of Handgrip Strength and Leg Extension Power Asymmetry on Incident Recurrent Falls and Fractures in Older Men.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021Article
- The influence of isokinetic peak torque and muscular power on the functional performance of active and inactive community-dwelling elderly: a cross-sectional study.Brazilian journal of physical therapyArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
purposeTo determine whether knee extensor power asymmetry limits functional mobility of older adults who possess muscle weakness.
methodsKnee extensor power was measured in 36 older men and women (76.0±7.6yr), for each leg, on an isokinetic dynamometer at 60, 180, and 300degs
resultsKnee extensor power asymmetry was unrelated to 400-m walk time (r=0.16, p=0.180), stair ascent time (r=0.22, p=0.094), or chair rise time (r=0.03, p=0.437), whereas weak and strong leg powers were equally associated with 400-m time (r=-0.62, p<0.001; r=-0.62, p<0.001), stair ascent time (r=-0.55, p<0.001; r=-0.57, p<0.001), and chair rise time (r=-0.28, p=0.048; r=-0.31, p=0.032), respectively. Power asymmetry was lowest at 60degs
conclusionsKnee extensor power asymmetry was unrelated to 400-m walk, stair ascent, and chair rise performance in older adults. Weak and strong limb powers were equally related to these functional measures, but a leftward shift of the power-mobility curve exists for the weak leg that may hinder clinical assessment if strength or power is measured on a single limb and symmetry is assumed. The greatest degree of knee extensor power asymmetry occurred at the fastest isokinetic velocity, which suggests high-speed muscle contractions may better differentiate laterality of function in older individuals.
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