Segmental bioelectrical impedance analysis can detect differences between the affected and non-affected limbs in individuals with hip osteoarthritis

• Published in: BMC musculoskeletal disorders Vol. 24; no. 1; p. 420
• Main Authors: Pinheiro, Jocassia Silva, Carlos, Filipe Ramos, Caseiro-Filho, Luis Carlos, Ferraz Picado, Celso Hermínio, Garcia, Flávio Luís, de Oliveira Guirro, Elaine Caldeira, de Jesus Guirro, Rinaldo Roberto
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 25-05-2023; BioMed Central; BMC
• Subjects: Anthropometry; Arthritis; Child, Preschool; Cross-Sectional Studies; Cysts; Diagnosis; Disease; Electric Impedance; Electrical impedance; Electrophysiology; Female; Health aspects; Hip; Hip osteoarthritis; Humans; Impedance, Bioelectric; Limbs; Lower Extremity; Male; Medical research; Medicine, Experimental; Musculoskeletal diseases; Osteoarthritis; Osteoarthritis, Hip - diagnostic imaging; Pain; Phase angle; Physiological aspects; Population; Range of motion; Software; Brazil; Hip osteoarthritis; Phase angle; Electrical impedance
• ISSN: 1471-2474; 1471-2474
• DOI: 10.1186/s12891-023-06541-4

To analyze the bioelectrical impedance parameters of the lower limbs of individuals with hip osteoarthritis and healthy individuals.
Cross-sectional study.
The study was carried out at the Hip Surgery Outpatient Clinic.
The volunteers had to be between 45 and 70 years of age, of both sexes, with a clinical and radiological diagnosis of hip osteoarthritis for at least three years, unilateral involvement, or a significant complaint in one hip.
This was a cross-sectional study. Fifty-four individuals were recruited for the study, 31 individuals with hip osteoarthritis (OA group) and 29 healthy individuals for the control group (C group). Demographic and anthropometric data were collected and then the Numerical Pain Rating Scale, WOMAC, Harris Hip Score, and bioimpedance assessment were applied.
Electrical bioimpedance parameters. Phase angle (PhA), impedance, reactance, and muscle mass.
There was a significant difference in phase angle (PhA), impedance, and muscle mass at 50 kHz frequency on the side affected by OA when compared to the contralateral side. In the OA group, there was a significant decrease in phase angle (PhA) -0.54 (-0.85 to -0.23) and muscle mass - 0.29 (-0.40 to -0,19), as well as an increase in impedance at the 50 kHz frequency on the side affected by OA when compared to contralateral side 21.71 (13.69 to 29.74). In the C group, there was no difference between the dominant and non-dominant sides (P > 0.05).
The segmental electrical bioimpedance equipment can detect differences between limbs affected and unaffected by hip osteoarthritis.