Test-retest reliability and concurrent validity of knee extensor strength measured by a novel device incorporated into a weight stack machine vs. handheld and isokinetic dynamometry

• Published in: PloS one Vol. 19; no. 5; p. e0301872
• Main Authors: Sahu, Pradeep K, Goodstadt, Noel, Ramakrishnan, Arun, Silfies, Sheri P
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 22.05.2024; Public Library of Science (PLoS)
• Subjects: Adult; Arthritis; Biology and Life Sciences; Cardiovascular disease; Clinical medicine; Clinical trials; Comparative analysis; Correlation coefficient; Correlation coefficients; Cross correlation; Dynamometers; Engineering and Technology; Female; Humans; Injuries; Isometric Contraction - physiology; Knee; Knee - physiology; Knee - physiopathology; Knee Joint - physiology; Knee Joint - physiopathology; Male; Medicine and Health Sciences; Middle Aged; Muscle contraction; Muscle strength; Muscle Strength - physiology; Muscle Strength Dynamometer; Muscles; Osteoarthritis; Osteoarthritis, Knee - physiopathology; Physical therapy; Quadriceps muscle; Quadriceps Muscle - physiology; Reliability analysis; Reproducibility of Results; Research and Analysis Methods; Strength testing; Therapeutics, Physiological; Validity; Weight; Young Adult; United States > US

The current clinical gold standard for assessing isometric quadriceps muscle strength is an isokinetic dynamometer (IKD). However, in clinics without an IKD, clinicians default to using handheld dynamometers (HHD), which are less reliable and accurate than the IKD, particularly for large muscle grou...