Photobiomodulation Therapy As an Adjunct to Resistance Exercises on Muscle Metrics, Functional Balance, Functional Capacity, and Physical Performance Among Older Adults: A Systematic Scoping Review

Overview

Journal Lasers Med Sci

Publisher Springer

Date 2024 Sep 3

PMID 39225877

Authors

Prabal Kumar

Shashikiran Umakanth

Girish N

Affiliations

Soon will be listed here.

Abstract

This scoping review aims to summarize the literature on photobiomodulation (PBM) therapy as an adjunct to resistance exercise among older adults, focusing on its effects on muscle metrics, functional balance, capacity, and physical performance. The participants included were older adults aged ≥ 60 years and either gender. The concept was the application of PBM and resistance exercises with no limits on the context parameters. The databases Medline, Embase, Scopus and Web of Science were searched from inception till February 2024. Methodological quality was assessed using the Cochrane risk of bias 2.0. A total of 10 studies were included in the review. PBM, along with resistance training, was reported in six studies, whereas four reported PBM with isometric fatigue protocol. PBM with a wavelength of 808 nm was given on the belly of the rectus femoris muscle in most of the studies. The common dosimetry parameters used were- power density 35.7 W/cm, energy density 250 J/cm, 8 sites, energy per site 7 J, duration of 70 s per site, spot size per diode of 0.028 cm, and stationary contact of application. The application of PBM therapy alongside resistance exercise has been found to improve muscle metrics, functional capacity, and functional performance and reduce fatigability when compared with the control group in most of the studies. When incorporating PBM therapy as an adjunct to resistance training, it is crucial to consider the dosimetry parameters involved-to achieve the intended therapeutic effect. Adjusting treatment parameters with this information can optimize the effectiveness of PBM therapy and improve treatment outcomes for patients.

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