Reliability of a New Portable Dynamometer for Assessing Hip and Lower Limb Strength (CROSBI ID 299981)
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Marušič, Jan ; Marković, Goran ; Šarabon, Nejc
engleski
Reliability of a New Portable Dynamometer for Assessing Hip and Lower Limb Strength
The purpose of this study was to evaluate intra‐ and inter‐session reliability of the new, portable, and externally fixated dynamometer called MuscleBoard® for assessing the strength of hip and lower limb muscles. Hip abduction, adduction, flexion, extension, internal and external rota-tion, knee extension, ankle plantarflexion, and Nordic hamstring exercise strength were measured in three sessions (three sets of three repetitions for each test) on 24 healthy and recreationally active participants. Average and maximal value of normalized peak torque (Nm/kg) from three repetitions in each set and agonist:antagonist ratios (%) were statistically analyzed ; the coefficient of variation and intra‐class correlation coefficient (ICC2, k) were calculated to assess absolute and relative relia-bility, respectively. Overall, the results display high to excellent intra‐ and inter‐session reliability with low to acceptable within‐individual variation for average and maximal peak torques in all bilateral strength tests, while the reliability of unilateral strength tests was moderate to good. Our findings indicate that using the MuscleBoard® dynamometer can be a reliable device for assessing and monitoring bilateral and certain unilateral hip and lower limb muscle strength, while some unilateral strength tests require some refinement and more extensive familiarization.
Agonist:antagonist ratio ; Force ; Hip strength ; Nordic hamstring exercise ; Torque
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