Level of pain, muscle strength and posture: effects of PBM on an exercise program in women with knee osteoarthritis – a randomized controlled trial

Vassão, Patrícia Gabrielli; Silva, Bruna Arcaim; Souza, Mayra Cavenague de; Parisi, Júlia Risso; Camargo, Marcela Regina de; Rennó, Ana Cláudia Muniz

doi:10.1007/s10103-020-02989-1

Cited by 20 publications

(13 citation statements)

References 46 publications

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“…More recently in 2019, a systematic and meta-analysis on the topic by Stausholm et al (15) of 22 placebo-controlled RCTs demonstrated that PBMT significantly reduced both pain and disability compared to placebo and that the doses recommended by the World Association for Laser Therapy yielded the best results. A RCT by Vassão et al published after these reviews did not show beneficial effects of PBMT when added to an exercise program and they hypothesized that this was due to the relatively high dose of total energy emitted from the cluster probe (808 nm wavelength, 4 J per point, 56 J total per knee) (11) .…”

Section: Discussionmentioning

confidence: 99%

“…However, initial pain intensity level can be is so high that prevents the individuals from exercising (8) , and since KOA is a chronic disease, exercise-based rehabilitation may not be enough to reduce pain (5) . Although reduced leg strength is a common disabling feature in KOA, the effectiveness of photobiomodulation (PBMT) associated with ST, in the form of strength training has been investigated in randomized controlled trials (RCTs), however the results are not well clarified (9)(10)(11)(12) .…”

Section: Introductionmentioning

confidence: 99%

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Photobiomodulation Therapy Using Infrared (808 nm) Low Level Laser Therapy Associated with Strength Training in Knee Osteoarthritis: A Randomized placebo-controlled clinical trial

et al. 2022

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Mechanisms for significant clinical and statistical benefits of photobiomodulation (PBMT) in the treatment of knee osteoarthritis (KOA) include anti-inflammatory effects, optimization of tissue repair, improved muscle function and analgesia. The effectiveness of (PBMT) associated with strength training (ST), in the form of strength training, has been investigated in randomized clinical trials, but the results are not well clarified. The aim of this study was to evaluate the effects of ST associated with PBMT on joint pain intensity, range of motion, physical function and muscle strength of the quadriceps femoris and hamstrings in patients diagnosed with KOA. Twenty-eight adult patients of both genders with KOA were randomly distributed in 2 treatment groups, performed 3 times a week, for 6 weeks: ST Group (ST), submitted to stretching, self- mobilization, muscle strengthening and sensorimotor training and ST and STP Group (STP), submitted to the same program as the ST followed by infrared laser irradiation (Therapy XT, DMC, São Carlos, Brasil, l= 808 nm, P= 100mW, 5 points in the medial joint region and 4 points lateral, 3 J/point, 30 s/point). Blinded evaluators assessed pain at movent and no movement and range of motion using Analogic Visual Scale and goniometry, respectively. To assess physical function, the WOMAC questionnaire (Western Ontario and MacMaster University Osteoarthritis Index) and functional tests were used: Sit and stand test; 2 min-walk test. The muscular strength of the quadriceps and hamstrings were measured using an isometric dynamometer. The evaluations were performed in 4 moments: before (EV0), during (EV1: 3 weeks of treatment), at the end (EV2: after 6 weeks of treatment) and 30 days after the end of treatment (follow-up). The STP group showed a significant reduction in pain intensity at rest and at movement in EV1, as well as, significant improvement in relation to stiffness, total WOMAC and knee flexion amplitude, an improvement in physical function and an increase in muscle strength of quadriceps femoris when compared to ST group (p <0.05). In the assessment of the strength of the hamstring muscles, there was no significant difference between the groups at any time evaluated (p> 0.05). ST associated with PBMT had greater effects in reducing joint pain intensity, active knee flexion, physical function and muscle strength, especially in the quadriceps femoris, than strength training alone in patients with KOA.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photobiomodulation Therapy Using Infrared (808 nm) Low Level Laser Therapy Associated with Strength Training in Knee Osteoarthritis: A Randomized placebo-controlled clinical trial

et al. 2022

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“…Clinical trials have demonstrated that PBM has the ability to reduce swelling and pain and increase the functional activity in knee OA patients (Perrot 2015). Thus, PBM could be an effective therapeutic modality used for pain relief and improvement of function in patients with OA, mainly due to its ability to stimulate tissue metabolism, modulate the inflammatory process, and thus induce pain relief (Assis et al 2016;Huang et al 2015;Vassão et al 2020).…”

Section: Discussionmentioning

confidence: 99%

Effects of photobiomodulation associated with chitosan viscosupplementation for osteoarthritis: an in vitro and in vivo study

et al. 2020

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The aim of the present study was to investigate the tissue performance of the association of photobiomodulation (PBM) and chitosan hydrogel (Ch), using in vitro and in vivo studies, in culture of chondrocytes and in an experimental model of osteoarthritis (OA) in the knee of rats. Methods The chitosan hydrogel was characterized by pH, gelation time, and degradation rate. For the in vitro study, chondrocyte cells were seeded in the Ch irradiated or not with PBM to assess cell viability and proliferation after 1, 3, and 5 days. For the in vivo study, sixty Wistar rats with OA were randomly distributed: control group (CG), Ch hydrogel injection (Ch), Ch hydrogel injection associated with PBM (Ch/PBM). Results The characterization results revealed that Ch hydrogels can be controlled precisely by variation of the urea and urease concentrations. The in vitro findings demonstrated that Ch and Ch/PBM are biocompatible and noncytotoxic. The in vivo findings showed that PBM associated with Ch prevented articular degeneration by stimulating anabolic factor (TGF-β) and reducing catabolic factor (TNF-α) and increasing the gene related to components of the cartilage extracellular matrix. Conclusion In conclusion, the PBM associated with Ch can be used as a cartilage repair application.

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“…18 ► Uncontrolled diabetes or hypertension. 30 ► Having a trip scheduled in the 2 months following the start of the study. 19 Research team This study will include five researchers, one in charge of randomising the groups, one to conduct all the assessments, two for the interventions and one for statistical analyses.…”

Section: Inclusion Criteriamentioning

confidence: 99%

Effects of dry cupping on pain, function and quality of life in women with knee osteoarthritis: a protocol for a sham-controlled randomised trial

et al. 2020

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IntroductionKnee osteoarthritis (KOA) is the most common cause of pain and disability worldwide. Dry cupping has been used as non-pharmacological approach to control pain and improve physical function. However, there is a lack of high-quality scientific evidence regarding its effects on this condition. This protocol describes a sham-controlled, randomised and simple blind study that aims to evaluate the effect of dry cupping on pain, function and quality of life in women with KOA.Methods and analysisSixty-two women diagnosed with KOA, based on American College of Rheumatology clinical criteria, and aged from 50 to 75 years, will be randomly distributed into two groups (31 per group): real and sham dry cupping. Both applications will occur with acrylic cups around the knee. The intervention will last 15 min, two times a week over six consecutive weeks, for a total of 12 sessions. Both groups will be assessed at four different times: before the intervention (T0), after 3 weeks intervention (T3), at the end of the protocol (T6) and 4 weeks after the interventions (follow-up: T10). The primary outcome will be pain intensity (Numerical Pain Rating Scale), and secondary outcomes will be knee-related health status (Western Ontario and McMaster Universities Osteoarthritis Index), functional capacity (8-step stair climb test, 40-metre fast-paced walk test and 30-second chair stand test), quality of life (Short-Form 36) and global perceived effect.Ethics and disseminationThis protocol was approved by the UFRN/FACISA Ethics Committee (number 3.737.688). The study results will be disseminated to the participants and submitted to a peer-reviewed journal and scientific meetings.Trial registration numberNCT04331158.

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Level of pain, muscle strength and posture: effects of PBM on an exercise program in women with knee osteoarthritis – a randomized controlled trial

Cited by 20 publications

References 46 publications

Photobiomodulation Therapy Using Infrared (808 nm) Low Level Laser Therapy Associated with Strength Training in Knee Osteoarthritis: A Randomized placebo-controlled clinical trial

Photobiomodulation Therapy Using Infrared (808 nm) Low Level Laser Therapy Associated with Strength Training in Knee Osteoarthritis: A Randomized placebo-controlled clinical trial

Effects of photobiomodulation associated with chitosan viscosupplementation for osteoarthritis: an in vitro and in vivo study

Effects of dry cupping on pain, function and quality of life in women with knee osteoarthritis: a protocol for a sham-controlled randomised trial

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