Muscle quality index and isometric strength in older adults with hip osteoarthritis

PeerJ

article

Daniel Jerez-Mayorga¹  Luis Javier Chirosa Ríos¹  Alvaro Reyes²  Pedro Delgado-Floody³  Ramon Machado Payer¹  Isabel María Guisado Requena⁴ 

[1] Physical Education and Sports Department, Faculty of Sport Sciences, University of Granada;Faculty of Rehabilitation Sciences, Universidad Andres Bello;Department of Physical Education, Sports and Recreation, Universidad de La Frontera;Nursing, Physiotherapy and Occupational Therapy Department, Faculty Nursing of Albacete, University of Castilla-La Mancha

关键词: Muscle quality;    Hip;    Osteoarthritis;    Strength;    Isometric;    Elderly;   

DOI  :  10.7717/peerj.7471

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

BackgroundOlder adults with hip osteoarthritis (OA) suffer a progressive loss of muscle quality and strength, affecting their daily activities and quality of life. The purpose of this study is to compare the levels of isometric strength among older adults with and without hip OA and healthy young adults, and to determine the relationship between muscle quality index (MQI) and isometric strength.MethodsFourteen subjects with hip OA (65.6 ± 3.0 years), 18 healthy older adults (66.6 ± 6.5 years) and 32 young adults (20.7 ± 2.0 years) participated in the study. MQI, isometric muscle strength of the hip, ten time sit-to-stand tests, and body composition were measured.ResultsThe MQI was lower in subjects with hip OA, with no significant differences between groups (p 0.054). Subjects with OA produced significantly less isometric strength in hip extension (p < 0.001), flexion (p < 0.001), abduction (p < 0.05), adduction (p < 0.001), external (p < 0.05) and internal rotation (p < 0.05). Subjects with OA demonstrated longer time in the execution of the sit-to-stand test (p < 0.001) in comparison with healthy older and young adults. High correlations between MQI, sit-to-stand (r =  − 0.76, p < 0.01) and peak force during hip abduction (r = 0.78, p < 0.01) where found in subjects with OA. Moderate correlation between MQI and peak force during hip flexion (r = 0.55, p < 0.05) and external rotation (r = 0.61, p < 0.05) were found in the OA group.ConclusionsSubjects with OA have lower MQI than old and young healthy controls. In subjects with OA, there was a significant relationship between isometric strength of hip muscles and performance on the sit-to-stand test and the MQI.

【 授权许可】

CC BY