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Baptista FM, Andias R, Rocha NP, Silva AG. A Practice Guide for Physical Therapists Prescribing Physical Exercise for Older Adults. J Aging Phys Act 2024:1-13. [PMID: 38862112 DOI: 10.1123/japa.2023-0283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 03/24/2024] [Accepted: 04/22/2024] [Indexed: 06/13/2024]
Abstract
INTRODUCTION Physical activity and exercise are protective factors for physical and cognitive decline in older adults, but recent studies reveal that a large percentage of this population do not practice exercise at the levels recommended by international guidelines. The frequency, intensity, type, time, volume, and progression (FITT-VP) principles are a widely used method for prescribing physical exercise, allowing the development of a personalized exercise program that meets the needs of each individual. OBJECTIVES This masterclass is intended to serve as a professional application tool for physical therapists who prescribe physical exercise for older adults. We present a section for each FITT-VP principle to facilitate handling these principles individually when prescribing exercise for this population. METHODS Review of the scientific literature and international guidelines on the prescription of physical exercises for older adults. RESULTS Aerobic, mobility, resistance, balance, and flexibility exercises, as well as functional training, should be included in an exercise program for older adults, which should be progressed using different methods for each of the exercise modalities. CONCLUSIONS An exercise program for older adults should integrate different exercise modalities. Exercise progression should be performed following the FITT-VP principles and some specific progression factors recommended for each exercise modality. SIGNIFICANCE Considering the challenge faced by clinicians in designing a viable exercise program for older adults that responds to international recommendations, with this masterclass we hope to help physical therapists to plan an exercise program that is feasible and at the same time, responds to the expected needs of this population.
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Affiliation(s)
- Frederico M Baptista
- Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
- CINTESIS.UA@RISE, University of Aveiro, Aveiro, Portugal
| | - Rosa Andias
- CINTESIS.UA@RISE, University of Aveiro, Aveiro, Portugal
| | - Nelson P Rocha
- Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
- Institute of Electronics and Informatics Engineering of Aveiro (IEETA), Aveiro, Portugal
| | - Anabela G Silva
- CINTESIS.UA@RISE, University of Aveiro, Aveiro, Portugal
- School of Health Sciences, University of Aveiro, Aveiro, Portugal
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Turkel I, Ozerklig B, Yılmaz M, Ulger O, Kubat GB, Tuncer M. Mitochondrial transplantation as a possible therapeutic option for sarcopenia. J Mol Med (Berl) 2023:10.1007/s00109-023-02326-3. [PMID: 37209146 DOI: 10.1007/s00109-023-02326-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/09/2023] [Accepted: 04/20/2023] [Indexed: 05/22/2023]
Abstract
With advancing age, the skeletal muscle phenotype is characterized by a progressive loss of mass, strength, and quality. This phenomenon, known as sarcopenia, has a negative impact on quality of life and increases the risk of morbidity and mortality in older adults. Accumulating evidence suggests that damaged and dysfunctional mitochondria play a critical role in the pathogenesis of sarcopenia. Lifestyle modifications, such as physical activity, exercise, and nutrition, as well as medical interventions with therapeutic agents, are effective in the management of sarcopenia and offer solutions to maintain and improve skeletal muscle health. Although a great deal of effort has been devoted to the identification of the best treatment option, these strategies are not sufficient to overcome sarcopenia. Recently, it has been reported that mitochondrial transplantation may be a possible therapeutic approach for the treatment of mitochondria-related pathological conditions such as ischemia, liver toxicity, kidney injury, cancer, and non-alcoholic fatty liver disease. Given the role of mitochondria in the function and metabolism of skeletal muscle, mitochondrial transplantation may be a possible option for the treatment of sarcopenia. In this review, we summarize the definition and characteristics of sarcopenia and molecular mechanisms associated with mitochondria that are known to contribute to sarcopenia. We also discuss mitochondrial transplantation as a possible option. Despite the progress made in the field of mitochondrial transplantation, further studies are needed to elucidate the role of mitochondrial transplantation in sarcopenia. KEY MESSAGES: Sarcopenia is the progressive loss of skeletal muscle mass, strength, and quality. Although the specific mechanisms that lead to sarcopenia are not fully understood, mitochondria have been identified as a key factor in the development of sarcopenia. Damaged and dysfunctional mitochondria initiate various cellular mediators and signaling pathways, which largely contribute to the age-related loss of skeletal muscle mass and strength. Mitochondrial transplantation has been reported to be a possible option for the treatment/prevention of several diseases. Mitochondrial transplantation may be a possible therapeutic option for improving skeletal muscle health and treating sarcopenia. Mitochondrial transplantation as a possible treatment option for sarcopenia.
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Affiliation(s)
- Ibrahim Turkel
- Department of Exercise and Sport Sciences, Faculty of Sport Sciences, Hacettepe University, Ankara, Turkey
- Division of Sport Sciences and Technology, Institute of Health Sciences, Hacettepe University, Ankara, Turkey
| | - Berkay Ozerklig
- Department of Exercise and Sport Sciences, Faculty of Sport Sciences, Hacettepe University, Ankara, Turkey
- Division of Sport Sciences and Technology, Institute of Health Sciences, Hacettepe University, Ankara, Turkey
| | - Merve Yılmaz
- Department of Medical Biochemistry, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Oner Ulger
- Department of Mitochondria and Cellular Research, Health Sciences Institute, Health Sciences University, Ankara, Turkey
| | - Gokhan Burcin Kubat
- Division of Sport Sciences and Technology, Institute of Health Sciences, Hacettepe University, Ankara, Turkey.
- Department of Mitochondria and Cellular Research, Health Sciences Institute, Health Sciences University, Ankara, Turkey.
| | - Meltem Tuncer
- Department of Physiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Karimi Majd S, Gholami M, Bazgir B. PAX7 and MyoD Proteins Expression in Response to Eccentric and Concentric Resistance Exercise in Active Young Men. CELL JOURNAL 2023; 25:135-142. [PMID: 36840460 PMCID: PMC9968375 DOI: 10.22074/cellj.2022.557440.1055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Indexed: 02/26/2023]
Abstract
OBJECTIVE Satellite cells play an important role in muscle regeneration, which this process can be affected by different genes including PAX7 and MyoD. Exercise training known as an important strategy for mediating the satellite cell's function. Therefore, the main purpose of the present study is to investigate the changes in PAX7 and MyoD protein expression in response to eccentric and concentric resistance exercise in healthy young men. MATERIALS AND METHODS In this semi-experimental and cross-sectional study, 10 healthy men (age range 18-30 years old) participated. They were randomly divided into two equal groups (n=5) to perform one of two high-intensity eccentric or concentric knee extensions muscle contraction protocols. The contractions included a maximum of 12 sets of 10 repetitions, with a 30 second rest time interval between sets. PAX7 and MyoD protein expression was assessed using Immunohistochemistry analysis from the Vastus Lateralis muscle needle biopsy samples that have been taken 24 hours before and 3 to 4 hours after the end of the exercise protocol. RESULTS We observed that the PAX7 protein expression level increased significantly after eccentric (47.75%) and concentric (39.21%) (P=0.01) intervention. While, the MyoD protein expression level reduced (38.14%) significantly following acute eccentric resistance exercise (P=0.01). CONCLUSION It seems that eccentric or concentric muscular contraction modulates the expression of PAX7 and MyoD protein expression in the skeletal muscle, with further effects observed in eccentric resistance exercise.
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Affiliation(s)
- Somayeh Karimi Majd
- Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mandana Gholami
- Department of Physical Education and Sport Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran,P.O.Box: 14515-775Department of Physical
Education and Sport SciencesScience and Research BranchIslamic Azad
UniversityTehranIran
| | - Behzad Bazgir
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Lai YT, Huang HL, Hsieh CC, Lin CH, Yang JC, Tsou HH, Lin CC, Li SY, Chan HL, Liu WS. The Effects of Yoga Exercise on Blood Pressure and Hand Grip Strength in Chronic Stroke Patients: A Pilot Controlled Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1108. [PMID: 36673861 PMCID: PMC9859542 DOI: 10.3390/ijerph20021108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/31/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND We investigated the beneficial effect of add-on yoga with rehabilitation on blood pressure (BP) and hand grip strength in patients with chronic stroke (more than 90 days). METHODS The study included patients 30-80 years of age who could stand independently for 1 min. Patients with psychiatric diseases or undergoing other therapies (like acupuncture) were excluded. The yoga group received training (1 h session twice weekly) with standard rehabilitation for 8 weeks. The control group received standard rehabilitation only. There were no differences in age, gender, hand grip strength, or BP between the two groups (16 subjects in each group) at baseline. RESULTS The systolic BP (p = 0.01) decreased significantly, and the diastolic BP also decreased but not significantly in the yoga group (p = 0.11). For hand grip strength, both the unaffected hand (p = 0.00025) and the affected hand (p = 0.027) improved significantly. The control group showed no significant change in systolic or diastolic BP, nor did the grip strength change in both hands. Gender and age also affected the results of overall rehabilitation in that women benefited more from a decrease in BP, while men and young people (lower than the mean age of 60) benefited from hand grip strength improvement. CONCLUSIONS Combining yoga with rehabilitation in chronic stroke patients can improve hand grip strength and decrease systolic BP.
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Affiliation(s)
- Yen-Ting Lai
- Department of Physical Medicine and Rehabilitation, National Taiwan University College of Medicine, Taipei 100, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 300, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hsin-Chu Hospital, Hsinchu 300, Taiwan
| | - Hsiao-Ling Huang
- Department of Healthcare Management, Yuanpei University of Medical Technology, No. 306, Yuanpei Street, Hsinchu 300, Taiwan
| | - City C. Hsieh
- Department of Kinesiology, Research Center for Education and Mind Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chien-Hung Lin
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei 112, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- College of Science and Engineering, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Jung-Cheng Yang
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu 300, Taiwan
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hsin-Chu Hospital, Hsinchu 300, Taiwan
| | - Han-Hsing Tsou
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Hsinchu 112, Taiwan
| | - Chih-Ching Lin
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 112, Taiwan
| | - Szu-Yuan Li
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 112, Taiwan
| | - Hsiang-Lin Chan
- Department of Child Psychiatry, Chang Gung Memorial Hospital and University, Taoyuan 333, Taiwan
| | - Wen-Sheng Liu
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan
- College of Science and Engineering, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Institute of Food Safety and Health Risk Assessment, National Yang Ming Chiao Tung University, Hsinchu 112, Taiwan
- Division of Nephrology, Department of Medicine, Taipei City Hospital, Zhongxing Branch, Taipei 103, Taiwan
- Department of Special Education, University of Taipei, Taipei 100, Taiwan
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Marshall RN, McKendry J, Smeuninx B, Seabright AP, Morgan PT, Greig C, Breen L. Acute resistance exercise training does not augment mitochondrial remodelling in master athletes or untrained older adults. Front Physiol 2023; 13:1097988. [PMID: 36685204 PMCID: PMC9846504 DOI: 10.3389/fphys.2022.1097988] [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: 11/14/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
Background: Ageing is associated with alterations to skeletal muscle oxidative metabolism that may be influenced by physical activity status, although the mechanisms underlying these changes have not been unraveled. Similarly, the effect of resistance exercise training (RET) on skeletal muscle mitochondrial regulation is unclear. Methods: Seven endurance-trained masters athletes ([MA], 74 ± 3 years) and seven untrained older adults ([OC]. 69 ± 6 years) completed a single session of knee extension RET (6 x 12 repetitions, 75% 1-RM, 120-s intra-set recovery). Vastus lateralis muscle biopsies were collected pre-RET, 1 h post-RET, and 48h post-RET. Skeletal muscle biopsies were analyzed for citrate synthase (CS) enzyme activity, mitochondrial content, and markers of mitochondrial quality control via immunoblotting. Results: Pre-RET CS activity and protein content were ∼45% (p < .001) and ∼74% greater in MA compared with OC (p = .006). There was a significant reduction (∼18%) in CS activity 48 h post-RET (p < .05) in OC, but not MA. Pre-RET abundance of individual and combined mitochondrial electron transport chain (ETC) complexes I-V were significantly greater in MA compared with OC, as were markers of mitochondrial fission and fusion dynamics (p-DRP-1Ser616, p-MFFSer146, OPA-1 & FIS-1, p < .05 for all). Moreover, MA displayed greater expression of p-AMPKThr172, PGC1α, TFAM, and SIRT-3 (p < .05 for all). Notably, RET did not alter the expression of any marker of mitochondrial content, biogenesis, or quality control in both OC and MA. Conclusion: The present data suggest that long-term aerobic exercise training supports superior skeletal muscle mitochondrial density and protein content into later life, which may be regulated by greater mitochondrial quality control mechanisms and supported via superior fission-fusion dynamics. However, a single session of RET is unable to induce mitochondrial remodelling in the acute (1h post-RET) and delayed (48 h post-RET) recovery period in OC and MA.
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Affiliation(s)
- Ryan Neil Marshall
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Birmingham, United Kingdom
| | - James McKendry
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, ON, Canada
| | - Benoit Smeuninx
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Birmingham, United Kingdom
| | - Alex Peter Seabright
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Birmingham, United Kingdom
| | - Paul T. Morgan
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Birmingham, United Kingdom
| | - Carolyn Greig
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Birmingham, United Kingdom
- NIHR Biomedical Research Centre, Birmingham, United Kingdom
| | - Leigh Breen
- School of Sport, Exercise, and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, Birmingham, United Kingdom
- NIHR Biomedical Research Centre, Birmingham, United Kingdom
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Kolodziej F, McDonagh B, Burns N, Goljanek-Whysall K. MicroRNAs as the Sentinels of Redox and Hypertrophic Signalling. Int J Mol Sci 2022; 23:ijms232314716. [PMID: 36499053 PMCID: PMC9737617 DOI: 10.3390/ijms232314716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/26/2022] Open
Abstract
Oxidative stress and inflammation are associated with skeletal muscle function decline with ageing or disease or inadequate exercise and/or poor diet. Paradoxically, reactive oxygen species and inflammatory cytokines are key for mounting the muscular and systemic adaptive responses to endurance and resistance exercise. Both ageing and lifestyle-related metabolic dysfunction are strongly linked to exercise redox and hypertrophic insensitivity. The adaptive inability and consequent exercise intolerance may discourage people from physical training resulting in a vicious cycle of under-exercising, energy surplus, chronic mitochondrial stress, accelerated functional decline and increased susceptibility to serious diseases. Skeletal muscles are malleable and dynamic organs, rewiring their metabolism depending on the metabolic or mechanical stress resulting in a specific phenotype. Endogenous RNA silencing molecules, microRNAs, are regulators of these metabolic/phenotypic shifts in skeletal muscles. Skeletal muscle microRNA profiles at baseline and in response to exercise have been observed to differ between adult and older people, as well as trained vs. sedentary individuals. Likewise, the circulating microRNA blueprint varies based on age and training status. Therefore, microRNAs emerge as key regulators of metabolic health/capacity and hormetic adaptability. In this narrative review, we summarise the literature exploring the links between microRNAs and skeletal muscle, as well as systemic adaptation to exercise. We expand a mathematical model of microRNA burst during adaptation to exercise through supporting data from the literature. We describe a potential link between the microRNA-dependent regulation of redox-signalling sensitivity and the ability to mount a hypertrophic response to exercise or nutritional cues. We propose a hypothetical model of endurance exercise-induced microRNA "memory cloud" responsible for establishing a landscape conducive to aerobic as well as anabolic adaptation. We suggest that regular aerobic exercise, complimented by a healthy diet, in addition to promoting mitochondrial health and hypertrophic/insulin sensitivity, may also suppress the glycolytic phenotype and mTOR signalling through miRNAs which in turn promote systemic metabolic health.
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Affiliation(s)
- Filip Kolodziej
- Department of Physiology, School of Medicine, CMNHS, University of Galway, H91TK33 Galway, Ireland
| | - Brian McDonagh
- Department of Physiology, School of Medicine, CMNHS, University of Galway, H91TK33 Galway, Ireland
| | - Nicole Burns
- Department of Physiology, School of Medicine, CMNHS, University of Galway, H91TK33 Galway, Ireland
| | - Katarzyna Goljanek-Whysall
- Department of Physiology, School of Medicine, CMNHS, University of Galway, H91TK33 Galway, Ireland
- Institute of Life Course and Medical Science, University of Liverpool, Liverpool L69 3BX, UK
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Cannataro R, Cione E, Bonilla DA, Cerullo G, Angelini F, D'Antona G. Strength training in elderly: An useful tool against sarcopenia. Front Sports Act Living 2022; 4:950949. [PMID: 35924210 PMCID: PMC9339797 DOI: 10.3389/fspor.2022.950949] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/27/2022] [Indexed: 11/26/2022] Open
Abstract
The loss of muscle mass and strength in elderly population (especially after the age of 65–70) represents a public health problem. Due to the high prevalence of frailty in older adults, cardiovascular or low-intensity exercise is implemented as first choice option. Although beneficial these training schemes are not as effective as strength-based resistance training for increasing muscle strength and hypertrophy. In fact, when performed progressively and under professional supervision, strength-based training has been proposed as an important and valid methodology to reduce sarcopenia-related problems. In this mini-review, we not only summarize the benefits of weight resistance training but also highlight practical recommendations and other non-conventional methods (e.g., suspension training) as part of an integral anti-sarcopenia strategy. Future directions including cluster set configurations and high-speed resistance training are also outlined.
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Affiliation(s)
- Roberto Cannataro
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
- Galascreen Laboratories, University of Calabria, Rende, Italy
- Research Division, Dynamical Business and Science Society–DBSS International SAS, Bogotá, Colombia
| | - Erika Cione
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy
- Galascreen Laboratories, University of Calabria, Rende, Italy
- *Correspondence: Erika Cione
| | - Diego A. Bonilla
- Research Division, Dynamical Business and Science Society–DBSS International SAS, Bogotá, Colombia
- Research Group in Physical Activity, Sports and Health Sciences (GICAFS), Universidad de Córdoba, Montería, Colombia
- Sport Genomics Research Group, Department of Genetics, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Giuseppe Cerullo
- Department of Movement Sciences and Wellbeing, University of Naples Parthenope, Naples, Italy
| | | | - Giuseppe D'Antona
- Centro di Ricerca Interdipartimentale nelle Attività Motorie e Sportive (CRIAMS)-Sport Medicine Centre, University of Pavia, Voghera, Italy
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
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Keats MR, Grandy SA, Blanchard C, Fowles JR, Neyedli HF, Weeks AC, MacNeil MV. The Impact of Resistance Exercise on Muscle Mass in Glioblastoma in Survivors (RESIST): Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2022; 11:e37709. [PMID: 35507403 PMCID: PMC9118089 DOI: 10.2196/37709] [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: 03/03/2022] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 11/25/2022] Open
Abstract
Background Glioblastoma is the most common primary brain malignancy in adults, accounting for approximately 48% of all brain tumors. Standard treatment includes radiation and temozolomide chemotherapy. Glioblastomas are highly vascular and can cause vasogenic brain edema and mass effect, which can worsen the neurologic symptoms associated with the disease. The steroid dexamethasone (DEX) is the treatment of choice to reduce vasogenic edema and intracranial pressure associated with glioblastoma. However high-dose DEX or long-term use can result in muscle myopathy in 10%-60% of glioblastoma patients, significantly reducing functional fitness and quality of life (QOL). There is a wealth of evidence to support the use of exercise as an adjuvant therapy to improve functional ability as well as help manage treatment-related symptoms. Specifically, resistance training has been shown to increase muscle mass, strength, and functional fitness in aging adults and several cancer populations. Although studies are limited, research has shown that exercise is safe and feasible in glioblastoma populations. However, it is not clear whether resistance training can be successfully used in glioblastoma to prevent or mitigate steroid-induced muscle myopathy and associated loss of function. Objective The primary purpose of this study is to establish whether an individualized circuit-based program will reduce steroid-induced muscle myopathy, as indicated by maintained or improved functional fitness for patients on active treatment and receiving steroids. Methods This is a 2-armed, randomized controlled trial with repeated measures. We will recruit 38 adult (≥18 years) patients diagnosed with either primary or secondary glioblastoma who are scheduled to receive standard radiation and concurrent and adjuvant temozolomide chemotherapy postsurgical debulking and received any dose of DEX through the neurooncology clinic and the Nova Scotia Health Cancer Center. Patients will be randomly allocated to a standard of care waitlist control group or standard of care + circuit-based resistance training exercise group. The exercise group will receive a 12-week individualized, group and home-based exercise program. The control group will be advised to maintain an active lifestyle. The primary outcome, muscle myopathy (functional fitness), will be assessed using the Short Physical Performance Battery and hand grip strength. Secondary outcome measures will include body composition, cardiorespiratory fitness, physical activity, QOL, fatigue, and cognitive function. All measures will be assessed pre- and postintervention. Participant accrual, exercise adherence, and safety will be assessed throughout the study. Results This study has been funded by the Canadian Cancer Society Atlantic Cancer Research Grant and the J.D. Irving Limited–Excellence in Cancer Research Fund (grant number 707182). The protocol was approved by the Nova Scotia Health and Acadia University’s Research Ethics Boards. Enrollment is anticipated to begin in March 2022. Conclusions This study will inform how individualized circuit-based resistance training may improve functional independence and overall QOL of glioblastoma patients. Trial Registration ClinicalTrails.gov NCT05116137; https://www.clinicaltrials.gov/ct2/show/NCT05116137 International Registered Report Identifier (IRRID) DERR1-10.2196/37709
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Affiliation(s)
- Melanie R Keats
- Division of Kinesiology, School of Health and Human Performance, Dalhousie University, Halifax, NS, Canada.,Division of Medical Oncology, Department of Medicine, Dalhousie University, Halifax, NS, Canada.,Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Scott A Grandy
- Division of Kinesiology, School of Health and Human Performance, Dalhousie University, Halifax, NS, Canada.,Division of Medical Oncology, Department of Medicine, Dalhousie University, Halifax, NS, Canada.,Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Christopher Blanchard
- Department of Medicine, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada
| | | | - Heather F Neyedli
- Division of Kinesiology, School of Health and Human Performance, Dalhousie University, Halifax, NS, Canada.,Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
| | - Adrienne C Weeks
- Division of Neurosurgery, Department of Surgery, Dalhousie University, Halifax, NS, Canada
| | - Mary V MacNeil
- Division of Medical Oncology, Department of Medicine, Dalhousie University, Halifax, NS, Canada
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Effect of Aerobic Exercise Training and Deconditioning on Oxidative Capacity and Muscle Mitochondrial Enzyme Machinery in Young and Elderly Individuals. J Clin Med 2020; 9:jcm9103113. [PMID: 32993104 PMCID: PMC7601902 DOI: 10.3390/jcm9103113] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial dysfunction is thought to be involved in age-related loss of muscle mass and function (sarcopenia). Since the degree of physical activity is vital for skeletal muscle mitochondrial function and content, the aim of this study was to investigate the effect of 6 weeks of aerobic exercise training and 8 weeks of deconditioning on functional parameters of aerobic capacity and markers of muscle mitochondrial function in elderly compared to young individuals. In 11 healthy, elderly (80 ± 4 years old) and 10 healthy, young (24 ± 3 years old) volunteers, aerobic training improved maximal oxygen consumption rate by 13%, maximal workload by 34%, endurance capacity by 2.4-fold and exercise economy by 12% in the elderly to the same extent as in young individuals. This evidence was accompanied by a similar training-induced increase in muscle citrate synthase (CS) (31%) and mitochondrial complex I–IV activities (51–163%) in elderly and young individuals. After 8 weeks of deconditioning, endurance capacity (−20%), and enzyme activity of CS (−18%) and complex I (−40%), III (−25%), and IV (−26%) decreased in the elderly to a larger extent than in young individuals. In conclusion, we found that elderly have a physiological normal ability to improve aerobic capacity and mitochondrial function with aerobic training compared to young individuals, but had a faster decline in endurance performance and muscle mitochondrial enzyme activity after deconditioning, suggesting an age-related issue in maintaining oxidative metabolism.
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