ArticleJournal of foot and ankle research2026
Reliability and Validity of Ankle Muscle Strength Testing Using the ISOTIB Device.
Article in Journal of foot and ankle research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionOne repetition maximum (1RM) testing is recognised as a reliable and valid method for determining maximum muscle strength. However, there are limited reports in the literature for measuring maximum ankle strength using free-weight methods. The aim of this study was to determine the test-retest reliability and concurrent validity of a novel free-weight device (ISOTIB) used to measure ankle strength.
methodsFifteen healthy, recreationally active, adults (male = 10, female = 5, age = 29.7 ± 4.4 years) volunteered for the study, attending two sessions 1 week apart. Reliability was assessed using intraclass correlation coefficients (ICC
resultsThe ISOTIB exhibited excellent test-retest reliability for maximal dorsiflexion (ICC
conclusionThe ISOTIB demonstrated excellent reliability and validity, suggesting it is a viable tool for assessing maximal ankle strength. The ISOTIB offers a practical alternative to current methods, which are typically expensive and utilise large immovable devices.
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