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Portable, One-Dimensional, Trunk-Flexor Muscle Strength Measurement System. 2020

Jefferson Fagundes Loss, and Edgar Santiago Wagner Neto, and Tatiane Borsoi de Siqueira, and Aline Dill Winck, and Laura Silveira de Moura, and Luiz Carlos Gertz

Trunk-flexor muscle strength plays a fundamental role in athletic performance, but objective measurements are usually obtained using expensive and nonportable equipment, such as isokinetic dynamometers. The aim of this study was to assess the concurrent validity of a portable, one-dimensional, trunk-flexor muscle strength measurement system (Measurement System) that uses calibrated barbells and the reliability of the measurements obtained using the Measurement System, by conducting test-retests. As a complementary assessment, the measurements obtained during a maximum contraction test performed by a group of 15 subjects were also recorded. Four conditions were assessed: repeatability, time reproducibility, position reproducibility, and subject reproducibility. The results demonstrate that both the concurrent validity and the measured reliability (intraclass correlation coefficient > .98) of the Measurement System are acceptable. The Measurement System provides valid and reliable measures of trunk-flexor muscle strength.

UI MeSH Term Description Entries
D004867 Equipment Design Methods and patterns of fabricating machines and related hardware. Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000009 Abdominal Muscles Muscles forming the ABDOMINAL WALL including RECTUS ABDOMINIS; ABDOMINAL OBLIQUE MUSCLES, transversus abdominis, pyramidalis muscles and quadratus abdominis. Cremaster Muscle,Pyramidalis Muscle,Quadratus Abdominis,Transverse Abdominal,Transversus Abdominis,Abdominal Muscle,Abdominal, Transverse,Abdominals, Transverse,Abdomini, Quadratus,Abdominis, Quadratus,Cremaster Muscles,Muscle, Abdominal,Muscle, Cremaster,Muscle, Pyramidalis,Muscles, Abdominal,Muscles, Cremaster,Muscles, Pyramidalis,Pyramidalis Muscles,Quadratus Abdomini,Transverse Abdominals
D015203 Reproducibility of Results The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results. Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face
D053580 Muscle Strength The amount of force generated by MUSCLE CONTRACTION. Muscle strength can be measured during isometric, isotonic, or isokinetic contraction, either manually or using a device such as a MUSCLE STRENGTH DYNAMOMETER. Arthrogenic Muscle Inhibition,Arthrogenic Muscle Inhibitions,Inhibition, Arthrogenic Muscle,Muscle Inhibition, Arthrogenic,Strength, Muscle
D053581 Muscle Strength Dynamometer A device that measures MUSCLE STRENGTH during muscle contraction, such as gripping, pushing, and pulling. It is used to evaluate the health status of muscle in sports medicine or physical therapy. Dynamometer, Muscle Strength,Dynamometers, Muscle Strength,Muscle Strength Dynamometers
D060726 Torso The central part of the body to which the neck and limbs are attached. Torsos

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