Photobiomodulation and physical exercise on strength, balance and functionality of elderly women

Abstract

Licensed under a Creative Commons attribution ORIGINAL ARTICLE [T] Photobiomodulation and physical exercise on strength, balance and functionality of elderly women Abstract Introduction: Aging is associated with structural changes in muscle tissue, which leads to the loss of functional independence. The preservation of the muscle strength through strength training, and recently, low-level laser therapy (LLLT), has high clinical significance. Objective: to investigate the effects of photobiomodulation (PBM -808 nm, 100 mW, 35.7 W/cm 2 and 7 J) associated with a strength training program on quadriceps muscle strength, balance and functional capacity in elderly women. Methods: Thirty-five healthy women between 60 to 70 years old were divided into two groups: Placebo Group (n = 13) and Active Group (n = 14). The exercise protocol consisted of knee flexion-extension exercise followed by application of PBM placebo or active, twice a week for 8 consecutive weeks. Results: showed a * PGV: Doctoral student, e-mail: patriciavassao@gmail.com RLT: PhD, e-mail: renataluri@gmail.com HKMA: PhD, e-mail: hanna.karen@unifesp.br ACMR: PhD, e-mail: acmr_ft@yahoo.com.br Fisioter Mov. 2018;31:e003109Vassão PG, Toma RL, Antunes HKM, Renno ACM. 2 significant increase in 6MWT (p = 0.001), SPPB (p = 0.006) and 1-MR (p = 0.001) in both groups. The strength training program associated with PBM active improved a significant increase, relative to baseline, to the right medial/lateral stability index (p = 0.007) and decrease in the Fall Risk Test (p = 0.005). Conclusion: the strength training produced a significant increase of muscle strength and functionality and when combined with the PMB it was significant in the improvement of postural stability and decrease of fall risk.

Effects of Plyometric Exercises versus Flatfoot Corrective Exercises on Postural Control and Foot Posture in Obese Children with a Flexible Flatfoot

“…Additionally, there is evidence that exercises have a crucial role in improving balance. It strengthens the muscles that enhance balance, walking ability, and correct deformities [ 7 ]. Published research has demonstrated that balance has improved by applying certain stretching procedures, proprioceptive stimulation techniques, and strengthening exercises [ 8 ].…”

Effects of Photobiomodulation/Laser Therapy Combined With Resistance Training on Quadriceps Hypertrophy and Strength, and Postural Balance in Older Women: A Randomized, Triple-Blinded, Placebo-Controlled Study

“…Taken together, these findings indicate that PBM may be effective for young, but not for older adults, regardless of sex or presence of a long-term RT program. Given that the total energy range (young: 50-240 J vs older adults: 56-240 J) was similar between studies with young16,52,53 and older12,17,23–25 individuals, it seems reasonable to assume that the lack of a further effect of PBM on muscle strength in the older adults may be more associated with intrinsic biological factors than with external parameters of irradiation. This point requires further investigation.…”

“…We also found similar improvements in the postural balance variables (i.e., A-COP, Vel AP, Vel ML, Freq AP, and Freq ML) from pre- to posttraining between active and placebo laser conditions. It is well established that RT can improve postural balance in older adults,58,59 but only a previous study examined the effects of PBM combined on an RT program on postural balance in older women 24. The authors applied the active laser PBM (λ= 808 nm, 100 mW, total energy: 56 J) or placebo PBM immediately after each session of an 8-week RT program (2 times per week) involving knee flexion-extension exercise at 60% to 80% of 1RM, and found an improvement in the mediolateral stability index in right leg (MLSI—right) in the active PBM group, but not in the placebo PBM group.…”

“…21,22 Besides, only a few studies have investigated the chronic effects of PBM combined with long-term RT on muscle adaptations in older adults, and no additional benefit has been observed for 1-repetition maximum (1RM) strength gains, 12,[23][24][25] fatigue index, 12,23 markers of inflammation, 12 and muscle function. [23][24][25] Similarly, the only one study that investigated the effects of PBM combined with a 12-week RT program on muscle thickness (MT) in older men reported no further effects of PBM. 25 In addition, no previous study investigated the effects of PBM plus RT on muscle hypertrophy in older women.…”

Efeitos da fotobiomodulação e exercícios na dor e força muscular na osteoartrose de joelho: Uma revisão sistemática

“…A FBM é apta a modular o processo inflamatório por meio da estimulação celular na via respiratória mitocondrial, ocasionando benefícios fisiológicos e clínicos. (Vassão et al, 2018).…”