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Ganipineni VDP, Gutlapalli SD, Ajay Sai Krishna Kumar I, Monica P, Vagdevi M, Samuel Sowrab T. Exploring the Potential of Energy-Based Therapeutics (Photobiomodulation/Low-Level Laser Light Therapy) in Cardiovascular Disorders: A Review and Perspective. Cureus 2023; 15:e37880. [PMID: 37214067 PMCID: PMC10199710 DOI: 10.7759/cureus.37880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2023] [Indexed: 05/23/2023] Open
Abstract
Based on the review of the literature, this article examines the potential therapeutic benefits of photobiomodulation therapy (PBMT) or low-level laser therapy (LLLT) for the treatment of cardiovascular disorders. The methodology involved searching PubMed, Google Scholar, and Central databases for relevant articles published from inception till date. The articles included in this review were preclinical and clinical studies investigating the effects of PBMT and LLLT on the heart. The article summarizes the findings of nineteen studies investigating the effects of PBMT and LLLT on various parameters related to heart failure (HF) and myocardial infarction (MI), including inflammation, oxidative stress, angiogenesis, cardiac function, and remodeling. The studies suggest that PBMT and LLLT have potential therapeutic benefits for the treatment of cardiovascular diseases and could be used in combination with traditional pharmacological therapies to enhance their effects or as a stand-alone treatment for patients who are not responsive to or cannot tolerate traditional therapies. In conclusion, this review article highlights the promising potential of PBMT for the treatment of HF and MI and the need for further research to fully understand its mechanisms of action and optimize treatment protocols.
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Affiliation(s)
- Vijay Durga Pradeep Ganipineni
- Department of General Medicine, SRM Medical College Hospital and Research Center, Chennai, IND
- Department of General Medicine, Andhra Medical College/King George Hospital, Visakhapatnam, IND
| | - Sai Dheeraj Gutlapalli
- Department of Internal Medicine, Richmond University Medical Center - Mount Sinai Health System/Icahn School of Medicine at Mount Sinai, Staten Island, USA
- Internal Medicine Clinical Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | | | - Potru Monica
- Department of Medicine, Guntur Medical College, Guntur, IND
| | - Moparthi Vagdevi
- Department of Medicine, Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Vijayawada, IND
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Sayed MA, El-Sherif RM, Ismail A, Abou Warda AE, Mohamed AR, El-Sherif AA. Effect of low-level laser physiotherapy on left ventricular function among patients with chronic systolic heart failure. Egypt Heart J 2023; 75:12. [PMID: 36780088 PMCID: PMC9925616 DOI: 10.1186/s43044-023-00337-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 02/04/2023] [Indexed: 02/14/2023] Open
Abstract
BACKGROUND Low-level laser therapy (LLLT) is a promising noninvasive physiotherapeutic approach that has been demonstrated to improve cardiac performance. This study aimed to assess the impact of low-level laser therapy on cardiac functions and clinical status in patients with chronic left ventricular systolic heart failure who were not candidates for cardiac revascularization or resynchronization. A case series of 27 patients received a course of low-level laser physiotherapy, the clinical outcomes, echocardiographic parameters, and serum nitric oxide levels were evaluated before and after LLLT. RESULTS Of the total patients enrolled in the study, 21 (or 77.8%) were male, with a mean age of 57.7 ± 6.89 years. NYHA classification significantly improved after low-level laser therapy, 15 patients were in class III,12 were in class IV, and no one was in class II before laser therapy while after laser therapy; 25 patients shifted to class II, two patients were in class III with P < 0.001, Six-minute walk distance test was performed, and the results showed that the mean of 6MWT was less than 200 m (148.556 ± 39.092) before the study but increased to more than 300 after laser therapy (385.074 ± 61.740), left ventricular ejection fraction before laser therapy was 26 ± 7.5 while after laser therapy it became 30 ± 8.6 but diastolic function did not change after low-level laser therapy, the mean peak TR pressure was 40.0 ± 9.0 mmHg and 33.0 ± 7.0 before and after laser therapy respectively P < 0.001. A significant change was observed in NO level from 4.1 ± 1.4 IU/ml before laser therapy to 5.2 ± 1.7 IU/ml after laser therapy P < 0.001. CONCLUSIONS Low-level laser therapy may add benefits to improve symptoms, clinical condition, and quality of life in patients with left ventricular systolic dysfunction, further studies are necessary to evaluate the changes in cardiac functions at a longer follow-up duration.
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Affiliation(s)
| | - Rania M. El-Sherif
- grid.7776.10000 0004 0639 9286Department of Critical Care Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Amira Ismail
- grid.7776.10000 0004 0639 9286Department of Critical Care Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Essam Abou Warda
- Department of Clinical Pharmacy, Faculty of Pharmacy, October 6 University, Giza, 12585, Egypt.
| | - Amany R. Mohamed
- grid.7776.10000 0004 0639 9286Department of Physiotherapy, Cairo University, Cairo, Egypt
| | - Ahmed A. El-Sherif
- grid.7776.10000 0004 0639 9286Department of Critical Care Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
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Photobiomodulation and Sports: Results of a Narrative Review. Life (Basel) 2021; 11:life11121339. [PMID: 34947870 PMCID: PMC8706093 DOI: 10.3390/life11121339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 11/17/2022] Open
Abstract
Benefits of photobiomodulation (PBM) have been known for several decades. More recently, PBM applied in sports offers a special chance to support the modeling of the performance and recovery. Increasingly complex physical activities and fierce competition in the world of sports generate a state of psycho-emotional and physical stress that can induce chronic fatigue syndrome, failure in physical training, predisposition to muscle damage, physical and emotional exhaustion etc., for which PBM could be an excellent solution. To evaluate and identify all risk factors and the influence of PBM on health and performance in sport and for a better understanding of its effects, we did a search for "Photobiomodulation and Sports" on PubMed, to update the PBM science applied in sports, and we retained for analysis the articles published from 2014 to date. The term "PBM" is recent, and we did not include previous studies with "low level laser therapy" or "LLLT" before 2014. In the present research, PBM has been shown to have valuable protective and ergogenic effects in 25 human studies, being the key to success for high performance and recovery, facts supported also by 22 animal studies. PBM applied creatively and targeted depending on sport and size of the level of physical effort could perfectly modulate the mitochondrial activity and thus lead to remarkable improvements in performance. PBM with no conclusive results or without effects from this review (14 studies from a total of 39 on humans) was analyzed and we found the motivations of the authors from the perspective of multiple causes related to technological limitations, participants, the protocols for physical activity, the devices, techniques and PBM parameters. In the near future, dose-response experiments on physical activity should be designed and correlated with PBM dose-response studies, so that quantification of PBM parameters to allow the energy, metabolic, immune, and neuro-endocrine modulation, perfectly coupled with the level of training. There is an urgent need to continuously improve PBM devices, delivery methods, and protocols in new ingenious future sports trials. Latest innovations and nanotechnologies applied to perform intracellular signaling analysis, while examining extracellular targets, coupled with 3D and 4D sports motion analysis and other high-tech devices, can be a challenge to learn how to maximize PBM efficiency while achieving unprecedented sports performance and thus fulfilling the dream of millions of elite athletes.
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Batista MR, Estrela LA, Alves VMN, Motta AR, Furlan RMMM. Immediate effects of red (660 nm) and infrared (808 nm) photobiomodulation therapy on fatigue of the orbicularis oris muscle: a randomized clinical study. Codas 2021; 34:e20200363. [PMID: 34705999 PMCID: PMC9851187 DOI: 10.1590/2317-1782/20212020363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/28/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE To compare the immediate effects of laser photobiomodulation at wavelengths of 660 nm and 808 nm on fatigue of the orbicularis oris. METHODS This is a randomized study with 60 women aged between 19 and 43 years. The participants were divided into four groups. Group RG received photobiomodulation with a laser wavelength of 660 nm at four points of the orbicularis oris; group IRG received photobiomodulation with a laser wavelength of 808 nm at the same points; the control group did not receive light treatment; and the placebo group underwent the same procedures as RG and IRG but with the equipment switched off. The irradiation was performed with a laser of 100 mW of power, 4 J of energy per point and 133.3 J/cm2 of fluency. An electromyography evaluation was performed before and after the irradiation, concomitantly with the exercise of lip protrusion maintained until the sensation of fatigue. Fatigue was evaluated by a median frequency using the electromyographic fatigue index. The amplitude of the signal was evaluated, examining the root mean square, and the values were normalized by the peak. The difference in amplitude between the upper and lower lips was also analyzed. All variables were compared before and after irradiation. RESULTS No significant difference was found between the measures taken before and after irradiation. CONCLUSION Photobiomodulation with the parameters investigated in this study had no immediate effect on orbicular oris fatigue.
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Affiliation(s)
- Mariana Rodrigues Batista
- Programa de pós-graduação em Ciências Fonoaudiológicas, Universidade Federal de Minas Gerais – UFMG - Belo Horizonte (MG), Brasil.
| | | | - Vanessa Mouffron Novaes Alves
- Programa de pós-graduação em Ciências Fonoaudiológicas, Universidade Federal de Minas Gerais – UFMG - Belo Horizonte (MG), Brasil.
| | - Andréa Rodrigues Motta
- Departamento de Fonoaudiologia, Universidade Federal de Minas Gerais – UFMG - Belo Horizonte (MG), Brasil.
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Effects of Laser Photobiomodulation Therapy at 808 nm on Muscle Performance and Perceived Exertion in Elderly Women. TOPICS IN GERIATRIC REHABILITATION 2020. [DOI: 10.1097/tgr.0000000000000288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
BACKGROUND Laser therapy is widely used for exercise-induced fatigue, while the effect among different studies remains controversial. The present study was to summary available randomized controlled trials (RCTs) to evaluate the effect of laser therapy in subjects with exercise-induced fatigue. METHODS PubMed, Embase, and Cochrane Library were searched to identify the potential RCTs from inception to October 2017. The weighted mean difference (WMD) with 95% confidence intervals (CIs) was calculated using a random-effects model. RESULTS Twenty RCTs involving a total of 394 individuals were included in final analysis. No significant differences were observed between the laser therapy and control for the outcomes of lactate (WMD: -0.19; 95%CI: -0.52 to 0.13; P = .244), repetitions (WMD: 4.44; 95%CI: -1.43 to 10.32; P = .138), work load (WMD: 3.38; 95%CI: -1.15 to 7.91; P = .144), time taken to perform the exercise tests (WMD: 4.42; 95%CI: -2.33 to 11.17; P = .199), creatine kinase (WMD: -41.80; 95%CI: -168.78 to 85.17; P = .519), maximum voluntary contraction (WMD: 23.83; 95%CI: -7.41 to 55.07; P = .135), mean peak forces (WMD: 2.87; 95%CI: -1.01 to 6.76; P = = .147), and visual analog scale (VAS) (WMD: -1.91; 95%CI: -42.89 to 39.08; P = = .927). The results of sensitivity analysis suggested that laser therapy might play an important role on the levels of lactate (WMD: -0.30; 95%CI: -0.59 to -0.01; P = = .040), maximum voluntary contraction (WMD: 33.54; 95%CI: 1.95 to 65.12; P = = .037), and VAS (WMD: -21.00; 95%CI: -40.78 to -1.22; P = = .037). The results of subgroup analyses indicated no significant differences between the laser therapy and placebo for lactate and repetitions when stratified by study design, mean age, gender, and study quality. CONCLUSIONS The findings of this meta-analysis did not indicate any significant differences between the laser therapy and placebo.
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Tucci HT, Figueiredo DS, de Paula Carvalho R, Souza ACF, Vassão PG, Renno ACM, Ciol MA. Quadriceps femoris performance after resistance training with and without photobiomodulation in elderly women: a randomized clinical trial. Lasers Med Sci 2019; 34:1583-1594. [DOI: 10.1007/s10103-019-02748-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/08/2019] [Indexed: 01/24/2023]
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Naderi N, Bahrami H, Homaei H, Maleki M. Study design: The effects of photobiomodulation therapy combined with exercise training on functional capacity and quality of life in patients with heart failure (double-blind randomized). Res Cardiovasc Med 2019. [DOI: 10.4103/rcm.rcm_27_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Alves VMN, Furlan RMMM, Motta AR. Immediate effects of photobiomodulation with low-level laser therapy on muscle performance: an integrative literature review. REVISTA CEFAC 2019. [DOI: 10.1590/1982-0216/201921412019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
ABSTRACT Purpose: to analyze the influence of low-level laser on muscle performance and to identify the most used dosimetric parameters. Methods: the search for articles was carried out on the PubMed, BVS, Web of Science and SciELO platforms. The articles selected were original ones, with available abstracts and that evaluated the use of photobiomodulation on muscular performance. The data were analyzed according to the author, year of publication, sample, place of application, parameters evaluated, wavelength, dosimetry used and results found. Results: the final sample consisted of 27 articles published between 2008 and 2017. The sample size in the studies ranged from 8 to 60 individuals, aged from 17 to 70 years. A greater use of infrared wavelength, with punctual applications carried out in the path of the muscle, was observed. Regarding the dose, there was a variation from 0.24 to 50 joules per point. Of the total, only 5 (18.5%) studies had not found significant answers for the considered variables. Conclusion: most of the studies pointed out that low-level laser can improve muscle performance. The methodology used in the work was diversified, rendering data compilation difficult, being impossible to set the ideal parameters for this purpose.
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Fritsch CG, Dornelles MP, Teodoro JL, da Silva LXN, Vaz MA, Pinto RS, Cadore EL, Baroni BM. Effects of photobiomodulation therapy associated with resistance training in elderly men: a randomized double-blinded placebo-controlled trial. Eur J Appl Physiol 2018; 119:279-289. [DOI: 10.1007/s00421-018-4023-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/17/2018] [Indexed: 12/25/2022]
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Macagnan FE, Baroni BM, Cristofoli ÉZ, Godoy M, Schardong J, Plentz RDM. Acute effect of photobiomodulation therapy on handgrip strength of chronic kidney disease patients during hemodialysis. Lasers Med Sci 2018; 34:835-840. [PMID: 30056586 DOI: 10.1007/s10103-018-2593-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 07/16/2018] [Indexed: 10/28/2022]
Abstract
Pre-exercise photobiomodulation therapy (PBMT) reduces fatigue and enhances performance in different populations. However, PBMT benefits have never been tested on chronic kidney disease (CKD) patients, who present muscle weakness, fatigue, and reduced functional performance. The objective of this study was to evaluate the acute effect of three different doses of the PBMT on maximal handgrip strength of CKD patients. Fifteen volunteers (58 ± 8 years, 10 male/5 female) under chronic hemodialysis treatment (6 ± 4 years) participated in a randomized, crossover, double-blind, placebo-controlled trial. Each patient was assessed at four hemodialysis sessions with 1 week interval between evaluations. Placebo or PBMT (cluster probe with five 850 nm/200 mW laser diodes) were applied at three sites along the flexors of the finger (total doses of 60, 90, or 120 J per arm). The maximal handgrip strength was evaluated before and after PBMT/placebo treatment in each session. Repeated measures ANOVA and intraclass correlation coefficients (ICC) confirmed no learning effect on handgrip tests, and high scores for test-retest reliability (ICC scores = 0.89 to 0.95). Significant strength increases occurred after PBMT application with doses of 60 J/arm (4.85%, p = 0.005, ES = 0.32) and 90 J/arm (4.45%, p = 0.013, ES = 0.25), while no changes were detected with placebo or 120 J/arm. In conclusion, in consensus with a recent systematic review, a single bout of the 60 J/arm was the best dose/response for increased strength of the small muscles (handgrip strength). In view of the increasing implementation of exercise programs during hemodialysis, the current study opens a new field for PBMT for CKD patients.
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Affiliation(s)
- Fabrício Edler Macagnan
- Graduate Program in Rehabilitation Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite, 245, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil.
| | - Bruno Manfredini Baroni
- Graduate Program in Rehabilitation Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite, 245, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil
| | - Érika Zanchet Cristofoli
- Physiotherapy Course, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Marília Godoy
- Physiotherapy Course, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Jociane Schardong
- Graduate Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Rodrigo Della Méa Plentz
- Graduate Program in Rehabilitation Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite, 245, Porto Alegre, Rio Grande do Sul, 90050-170, Brazil.,Graduate Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
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Stein C, Fernandes RO, Miozzo AP, Coronel CC, Baroni BM, Belló-Klein A, Plentz RDM. Acute Effects of Low-Level Laser Therapy on Patients' Functional Capacity in the Postoperative Period of Coronary Artery Bypass Graft Surgery: A Randomized, Crossover, Placebo-Controlled Trial. Photomed Laser Surg 2018; 36:122-129. [PMID: 29466116 DOI: 10.1089/pho.2017.4270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the acute effects of low-level laser therapy (LLLT) on the functional capacity to exercise tested by incremental shuttle walking test (ISWT) after coronary artery bypass graft (CABG) surgery. METHODS Fifteen male patients (60 ± 9 years) were crossed over during the experiment, to compare the outcomes after active LLLT and placebo LLLT treatments. LLLT (850 nm, 200 mW, 30 J to each point, resulting in a total of 240 J per quadriceps muscle), using a multidiode cluster (five spots; 6 J/spot) in eight points per leg was performed 3 min before the ISWT. We analyzed distance walked, Borg scale of perceived exertion, heart rate, and brachial arterial blood pressure. Markers of tissue damage [lactate dehydrogenase (LDH)] and oxidative stress [lipid peroxidation, total thiol levels, and antioxidant enzyme activity of superoxide dismutase (SOD) and catalase (CAT)] were also measured in peripheral blood. RESULTS Comparison of the distances walked revealed no significant differences between the LLLT and placebo LLLT groups (p = 0.779). Regarding the Borg scale (p = 0.567), heart rate (p = 0.506) as well as systolic and diastolic blood pressure (p = 0.164 and p = 0.140, respectively), no differences were observed between LLLT and placebo LLLT groups. Application of LLLT was not able to change levels of LDH (p = 0.214), oxidative lipid damage (p = 0.733), total thiol levels (p = 0.925), SOD (p = 0.202), and CAT (p = 0.825) enzyme activities. CONCLUSIONS Acute LLLT improved neither functional capacity to exercise nor the markers of oxidation after CABG. TRIAL REGISTRATION Registered as a clinical trial (NCT02688426).
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Affiliation(s)
- Cinara Stein
- 1 Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) , Porto Alegre, RS, Brazil .,2 Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC) , Porto Alegre, RS, Brazil
| | - Rafael Oliveira Fernandes
- 3 Laboratory of Cardiovascular Physiology, Institute of Basic Sciences of Health (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS) , Porto Alegre, Rio Grande do Sul, Brazil
| | - Aline Paula Miozzo
- 1 Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) , Porto Alegre, RS, Brazil .,2 Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC) , Porto Alegre, RS, Brazil
| | - Christian Correa Coronel
- 1 Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) , Porto Alegre, RS, Brazil .,2 Instituto de Cardiologia do Rio Grande do Sul (IC), Fundação Universidade de Cardiologia (FUC) , Porto Alegre, RS, Brazil
| | - Bruno Manfredini Baroni
- 1 Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) , Porto Alegre, RS, Brazil
| | - Adriane Belló-Klein
- 3 Laboratory of Cardiovascular Physiology, Institute of Basic Sciences of Health (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS) , Porto Alegre, Rio Grande do Sul, Brazil
| | - Rodrigo Della Méa Plentz
- 1 Physical Therapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) , Porto Alegre, RS, Brazil
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Photobiomodulation (PBM) therapy at 904 nm mitigates effects of exercise-induced skeletal muscle fatigue in young women. Lasers Med Sci 2018; 33:1197-1205. [PMID: 29455305 DOI: 10.1007/s10103-018-2454-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/23/2018] [Indexed: 12/11/2022]
Abstract
Muscle fatigue is a process influenced by several mechanisms such as concentration of metabolic substrates, changes in blood flow, and increases in reactive oxygen species that impair contractile muscle function. In this context, photobiomodulation has been investigated for preventing muscle fatigue, with reports of positive effects on muscle performance. This study aimed to investigate the effects of 904-nm LASER photobiomodulation on rectus femoris muscle performance in young women. Eighteen young women participated in a randomized, participant and assessor-blinded crossover trial with placebo control. Active LASER (904 nm, 60 mW, 250 Hz, 3.6 J per diode, total dose of 129.6 J) intervention was applied prior to an isokinetic fatigue protocol consisting of a set of 60 concentric quadricep contractions at a constant dynamometer angular velocity of 180°/s. Compared to placebo, LASER photobiomodulation significantly reduced muscle fatigue across a range of indicators including reduced ratings of perceived exertion (P = 0.0139), and increased electromyographic fatigue index (EFI) (P = 0.005). The isokinetic dynamometer performance analysis demonstrated that LASER photobiomodulation increased peak torque (P = 0.04), time to peak torque (P = 0.042), total work (P = 0.032), average power (P = 0.0007), and average peak torque (P = 0.019) between both experimental conditions. No significant difference was observed for work fatigue index (P = 0.29) or for lactate concentration (P > 0.05). Photobiomodulation at 904 nm was effective in reducing fatigue levels and increasing muscle performance in young active women but had no effect on lactate levels.
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Forestieri P, Guizilini S, Peres M, Bublitz C, Bolzan DW, Rocco IS, Santos VB, Moreira RSL, Breda JR, de Almeida DR, Carvalho ACDC, Arena R, Gomes WJ. A Cycle Ergometer Exercise Program Improves Exercise Capacity and Inspiratory Muscle Function in Hospitalized Patients Awaiting Heart Transplantation: a Pilot Study. Braz J Cardiovasc Surg 2017; 31:389-395. [PMID: 27982348 PMCID: PMC5144561 DOI: 10.5935/1678-9741.20160078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 09/15/2016] [Indexed: 12/13/2022] Open
Abstract
Objective The purpose of this study was to evaluate the effect of a cycle ergometer
exercise program on exercise capacity and inspiratory muscle function in
hospitalized patients with heart failure awaiting heart transplantation with
intravenous inotropic support. Methods Patients awaiting heart transplantation were randomized and allocated
prospectively into two groups: 1) Control Group (n=11) - conventional
protocol; and 2) Intervention Group (n=7) - stationary cycle ergometer
exercise training. Functional capacity was measured by the six-minute walk
test and inspiratory muscle strength assessed by manovacuometry before and
after the exercise protocols. Results Both groups demonstrated an increase in six-minute walk test distance after
the experimental procedure compared to baseline; however, only the
intervention group had a significant increase (P=0.08 and
P=0.001 for the control and intervention groups,
respectively). Intergroup comparison revealed a greater increase in the
intervention group compared to the control (P<0.001).
Regarding the inspiratory muscle strength evaluation, the intragroup
analysis demonstrated increased strength after the protocols compared to
baseline for both groups; statistical significance was only demonstrated for
the intervention group, though (P=0.22 and
P<0.01, respectively). Intergroup comparison showed
a significant increase in the intervention group compared to the control
(P<0.01). Conclusion Stationary cycle ergometer exercise training shows positive results on
exercise capacity and inspiratory muscle strength in patients with heart
failure awaiting cardiac transplantation while on intravenous inotropic
support.
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Affiliation(s)
- Patrícia Forestieri
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Solange Guizilini
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil.,Departamento de Ciência do Movimento Humana, Escola de Fisioterapia da Universidade Federal de São Paulo (UNIFESP), Santos, SP, Brazil
| | - Monique Peres
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Caroline Bublitz
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Douglas W Bolzan
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Isadora S Rocco
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Vinícius B Santos
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Rita Simone L Moreira
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - João R Breda
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Dirceu R de Almeida
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Antonio Carlos de C Carvalho
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | - Ross Arena
- Department of Physical Therapy and Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, USA
| | - Walter J Gomes
- Disciplina de Cirurgia Cardiovascular e Cardiologia da Escola Paulista de Medicina da Universidade de São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
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