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Dos Anjos Souza VR, Vivan L, Seffrin A, Vallini L, de Paula Domingos F, de Lira CAB, Vancini RL, Weiss K, Rosemann T, Knechtle B, Andrade MS. Impact of aging on maximal oxygen uptake in female runners and sedentary controls. Exp Gerontol 2024; 193:112476. [PMID: 38830478 DOI: 10.1016/j.exger.2024.112476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/09/2024] [Accepted: 05/31/2024] [Indexed: 06/05/2024]
Abstract
The present study aimed to compare V̇O2max (absolute, adjusted to total body mass, and adjusted to lean mass) in recreational runners and sedentary women < and > 50 yr and verify the effect of aging and physical activity level on the three types of V̇O2 max expression. The study included 147 women:85 runners (45.7 ± 14.1 yr) and 62 sedentary controls (48.8 ± 9.8 yr). They were subjected to cardiopulmonary exercise testing for V̇O2 max measurement and a body composition test by dual-emission X-ray absorptiometry system. V̇O2max were expressed as absolute values (L/min), relative to total body mass values (mL/kg/min), and relative to lean mass values (mL/kgLM/min). The two-way analysis of variance revealed a significant interaction [F(2,131) = 4.43, p < 0.001] and effects of age group [F(2,131) = 32.79, p < 0.001] and physical activity group [F(2,131) = 55.64, p < 0.001] on V̇O2max (mL/min). V̇O2max (mL/kg/min) and V̇O2 max (mL/kgLM/min) were significantly influenced by age and physical activity levels. The multiple regression model explains 76.2 % of the dependent variable V̇O2max (mL/kg/min), age (β = -0.335, t = -7.841, p < 0.001), and physical activity group (β = -0.784, t = -18.351, p < 0.001). In conclusion, female runners had higher V̇O2 max values than sedentary women at all ages, even though aging has a greater impact on V̇O2 max in the runners group. In addition to cardiorespiratory fitness, women's metabolic lean mass function, as measured by V̇O2max adjusted by lean mass, is significantly influenced by aging. Finally, physical activity has a greater impact on V̇O2 max levels than aging.
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Affiliation(s)
| | - Lavínia Vivan
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, São Paulo, Brazil
| | - Aldo Seffrin
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, São Paulo, Brazil
| | - Lucca Vallini
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, São Paulo, Brazil
| | - Fabio de Paula Domingos
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, São Paulo, Brazil.
| | - Claudio Andre Barbosa de Lira
- Human and Exercise Physiology Division, Faculty of Physical Education and Dance, Federal University of Goiás, Goiânia, Goiás, Brazil.
| | - Rodrigo Luiz Vancini
- Center for Physical Education and Sports, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Katja Weiss
- Institute of Primary Care, University of Zurich, Zurich, Switzerland.
| | - Thomas Rosemann
- Institute of Primary Care, University of Zurich, Zurich, Switzerland.
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, Zurich, Switzerland; Medbase St. Gallen Am Vadianplatz, St. Gallen, Switzerland.
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Crisafulli O, Grattarola L, Bottoni G, Lacetera J, Lavaselli E, Beretta-Piccoli M, Tupler R, Soldini E, D’Antona G. Maximal Oxygen Consumption Is Negatively Associated with Fat Mass in Facioscapulohumeral Dystrophy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:979. [PMID: 39200589 PMCID: PMC11353994 DOI: 10.3390/ijerph21080979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/17/2024] [Accepted: 07/24/2024] [Indexed: 09/02/2024]
Abstract
Facioscapulohumeral dystrophy (FSHD) leads to progressive changes in body composition such as loss of muscle mass and increase in adiposity. In healthy subjects, anthropometric parameters are associated with the maximum volume of oxygen consumed per minute (VO2max), which is a health and function indicator in several populations of subjects, both healthy and pathological. Since VO2max can be difficult to test in patients with FSHD due to exercise intolerance, the identification of associated anthropometric parameters could provide new easily obtainable elements for the patients' clinical stratification. The aim of this study was to evaluate whether anthropometric and body composition parameters are associated with VO2max in patients with FSHD. A total of 22 subjects with a molecular genetics-based diagnosis of FSHD (6 females, 16 males, mean age of 35.18 years) were recruited for the study. VO2max was measured by cardiopulmonary exercise tests (CPETs) on a cycle ergometer, utilizing a step incremental technique (15 Watts (W) every 30 s). Weight (Kg) and height (m) were obtained and utilized to calculate body mass index (BMI). Body composition parameters (fat mass (FM), fat free mass (FFM), and body cell mass (BCM)) were obtained by bioelectrical impedance analysis (BIA). Significant negative associations were found between VO2max and FM (Spearman correlation coefficient (SCC) -0.712), BMI (SCC -0.673), age (SCC -0.480), and weight (SCC -0.634), unlike FFM and BCM. Our results indicate that FM, BMI, age, and body weight are negatively associated with VO2max in patients with FSHD. This evidence may help practitioners to better stratify patients with FSHD.
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Affiliation(s)
- Oscar Crisafulli
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
| | - Luca Grattarola
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
| | - Giorgio Bottoni
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
| | - Jessica Lacetera
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
| | - Emanuela Lavaselli
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
| | - Matteo Beretta-Piccoli
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
- Rehabilitation Research Laboratory 2rLab, Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, 6928 Manno, Switzerland
| | - Rossella Tupler
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Emiliano Soldini
- Competence Centre for Healthcare Practices and Policies, Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, 6928 Manno, Switzerland
| | - Giuseppe D’Antona
- CRIAMS-Sport Medicine Centre Voghera, University of Pavia, 27058 Voghera, Italy
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, 27058 Voghera, Italy
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Verney J, Lambert C, Isacco L, Beraud D, Boscaro A, Pereira B, Costes F, Rannou F, Julian V, Duclos M, Boirie Y, Thivel D, Bailly M. Similar maximal aerobic capacity but lower energy efficiency during low-to-moderate exercise in women with constitutional thinness: new results from the NUTRILEAN study. Eur J Appl Physiol 2024:10.1007/s00421-024-05540-0. [PMID: 38904774 DOI: 10.1007/s00421-024-05540-0] [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: 03/29/2024] [Accepted: 06/06/2024] [Indexed: 06/22/2024]
Abstract
PURPOSE Individuals with constitutional thinness have been presented with a lower muscular energy metabolism at the cellular level but their effective aerobic capacities and exercise-related energy efficiency remains unexplored. The present study compares maximal and sub-maximal aerobic capacities between subjects with constitutional thinness and age-matched normal-weight ones. METHODS Anthropometric measures, body composition (Dual-X-ray absorptiometry), physical activity and sedentary time (GT3x actigraphs), and maximal aerobic capacities (cyclingV ˙ O 2peak test) were assessed in 18 constitutionally thin (CT-body mass index < 17.5 kg m-2) and 17 normal-weight (NW-body mass index between 20 and 25 kg m-2) women. Energy efficiency was assessed during a submaximal cycling test and a walking exercise. RESULTS CT had a lower body mass and body mass index compared to NW. Absolute peak oxygen uptake and maximal aerobic power were lower in CT subjects compared to NW (ES: - 1.63 [- 2.40; - 0.86] and - 1.32 [- 2.05; - 0.58], p < 0.001).V ˙ O 2peak related to body mass was not different between groups. Gross and net efficiency (ES: - 0.78 [- 1.48; - 0.06], p = 0.03 and ES: - 0.73 [- 1.43; - 0.01], p = 0.05) were lower in CT compared to NW during the submaximal cycling exercise. The gross energy cost of walking related to body mass was lower in subjects with CT (ES: - 1.80 [- 2.60; - 0.97, p = 0.05), with no difference for the net one. Perceived exertion was similar between groups in responses to both submaximal exercises. CONCLUSION Constitutionally thin women do not show impaired aerobic capacities at moderate to maximal intensities despite lower energy efficiency while cycling and walking at low-to-moderate intensities.
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Affiliation(s)
- Julien Verney
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CS 60026, 63178, Aubière Cedex, France.
| | - Céline Lambert
- Biostatistics Unit, DRCI, CHU Clermont-Ferrand, 63000, Clermont-Ferrand, France
| | - Laurie Isacco
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CS 60026, 63178, Aubière Cedex, France
| | - Duane Beraud
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CS 60026, 63178, Aubière Cedex, France
| | - Audrey Boscaro
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CS 60026, 63178, Aubière Cedex, France
| | - Bruno Pereira
- Biostatistics Unit, DRCI, CHU Clermont-Ferrand, 63000, Clermont-Ferrand, France
| | - Frédéric Costes
- Department of Sport Medicine and Functional Explorations, CHU Clermont-Ferrand, CRNH, INRA, University of Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - Fabrice Rannou
- Department of Sport Medicine and Functional Explorations, CHU Clermont-Ferrand, CRNH, INRA, University of Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - Valérie Julian
- Department of Sport Medicine and Functional Explorations, CHU Clermont-Ferrand, CRNH, INRA, University of Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - Martine Duclos
- Department of Sport Medicine and Functional Explorations, CHU Clermont-Ferrand, CRNH, INRA, University of Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - Yves Boirie
- Department of Clinical Nutrition, CHU Clermont-Ferrand, Diet and Musculoskeletal Health Team, CRNH, INRA, University of Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - David Thivel
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CS 60026, 63178, Aubière Cedex, France
| | - Mélina Bailly
- Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont Auvergne University, CS 60026, 63178, Aubière Cedex, France
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D'Alleva M, Giovanelli N, Graniero F, Billat VL, Fiori F, Marinoni M, Parpinel M, Lazzer S. Effects of 24-week Polarized Training vs. Threshold Training in Obese Male Adults. Int J Sports Med 2024; 45:282-291. [PMID: 37402392 DOI: 10.1055/a-2123-0851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
The combination of high volume of moderate-intensity continuous training with a low volume of high-intensity interval training improved body composition and physical capacities in individuals with obesity. However, polarized training (POL) has never been used in adult men with obesity. Thus, the purpose of this study was to investigate changes in body composition and physical capacities induced by a 24-week POL or threshold (THR) program in obese male adults. Twenty male patients (mean age 39.8±6.3 yrs; mean body mass index [BMI] 31.6±2.7 kg∙m-2) participated in this study (n: 10 POL, n: 10 THR). After 24-week, body mass (BM) and fat mass (FM) decreased by -3.20±3.10 kg (P<0.05) and -3.80±2.80 kg (P<0.05), respectively, similarly in both groups. Maximal oxygen uptake ( ̇VO2max) and ̇VO2 at respiratory compensation point (RCP) increased in the POL group (+8.5±12.2 and+9.0±17.0%, P<0.05) and in the THR group (+4.24±8.64 and+4.0±6.70%, P<0.05), as well ̇VO2 at gas exchange threshold (GET) increased similarly in both groups (+12.8±12.0%, P<0.05). POL and THR were equally effective in improving body composition and physical capacities in obese subjects. Future studies are needed to determine whether adherence to the training program can be improved by adding a running competition compared with a group without competition at the end of the training program.
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Affiliation(s)
- Mattia D'Alleva
- Deparment of Medicine, University of Udine, Udine, Italy
- School of Sport Sciences, University of Udine, Udine, Italy
| | - Nicola Giovanelli
- Deparment of Medicine, University of Udine, Udine, Italy
- School of Sport Sciences, University of Udine, Udine, Italy
| | - Francesco Graniero
- Physical Exercise Prescription Center, Azienda sanitaria universitaria Friuli Centrale, Gemona del Friuli, Italy
| | | | - Federica Fiori
- Deparment of Medicine, University of Udine, Udine, Italy
| | | | - Maria Parpinel
- Deparment of Medicine, University of Udine, Udine, Italy
| | - Stefano Lazzer
- Deparment of Medicine, University of Udine, Udine, Italy
- School of Sport Sciences, University of Udine, Udine, Italy
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Seffrin A, Vivan L, Dos Anjos Souza VR, da Cunha RA, de Lira CAB, Vancini RL, Weiss K, Knechtle B, Andrade MS. "Impact of aging on maximal oxygen uptake adjusted for lower limb lean mass, total body mass, and absolute values in runners". GeroScience 2024; 46:913-921. [PMID: 37233883 PMCID: PMC10214322 DOI: 10.1007/s11357-023-00828-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023] Open
Abstract
Performance in endurance sports decreases with aging, which has been primarily attributed to cardiovascular and musculoskeletal aging; however, there is still no clear information on the factors that are most affected by aging. The aim of this study was to compare two groups of runners (< 50 and > 50 years of age) according to their absolute, weight-adjusted maximal oxygen uptake (V̇O2max), lower limb lean mass-adjusted V̇O2max, ventilatory threshold, and respiratory compensation point (RCP). A total of 78 male recreational long-distance runners were divided into Group 1 (38.12 ± 6.87 years) and Group 2 (57.55 ± 6.14 years). Participants were evaluated for body composition, V̇O2max, VT, and RCP. Group 1 showed higher absolute and body mass-adjusted V̇O2max (4.60 ± 0.57 l·min-1 and 61.95 ± 8.25 ml·kg-1·min-1, respectively) than Group 2 (3.77 ± 0.56 l·min-1 and 51.50 ± 10.22 ml·kg-1·min-1, respectively), indicating a significant difference (p < 0.001, d = - 1.46 and p < 0.001, d = - 1.16). Correspondingly, Group 1 showed a significantly higher lower limb lean mass-adjusted V̇O2max (251.72 ± 29.60 ml·kgLM-1·min-1) than Group 2 (226.36 ± 43.94 ml·kgLM-1·min-1) (p = 0.008, d = - 0.71). VT (%V̇O2max) (p = 0.19, d = 0.19) and RCP (%V̇O2max) (p = 0.24, d = 0.22) did not differ between the groups. These findings suggest that both variables that are limited by central or peripheral conditions are negatively affected by aging, but the magnitude of the effect is higher in variables limited by central conditions. These results contribute to our understanding of how aging affects master runners.
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Affiliation(s)
- Aldo Seffrin
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Lavínia Vivan
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, Brazil
| | | | - Ronaldo Alves da Cunha
- Postgraduate Program in Translation Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - Claudio Andre Barbosa de Lira
- Human and Exercise Physiology Division, Faculty of Physical Education and Dance, Federal University of Goiás, Goiás, Brazil
| | - Rodrigo Luiz Vancini
- Center for Physical Education and Sports, Federal University of Espírito Santo, Espírito Santo, Brazil
| | - Katja Weiss
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, Zurich, Switzerland.
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Watts EL, Gonzales TI, Strain T, Saint-Maurice PF, Bishop DT, Chanock SJ, Johansson M, Keku TO, Le Marchand L, Moreno V, Newcomb PA, Newton CC, Pai RK, Purdue MP, Ulrich CM, Smith-Byrne K, Van Guelpen B, Day FR, Wijndaele K, Wareham NJ, Matthews CE, Moore SC, Brage S. Observational and genetic associations between cardiorespiratory fitness and cancer: a UK Biobank and international consortia study. Br J Cancer 2024; 130:114-124. [PMID: 38057395 PMCID: PMC10781786 DOI: 10.1038/s41416-023-02489-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND The association of fitness with cancer risk is not clear. METHODS We used Cox proportional hazards models to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for risk of lung, colorectal, endometrial, breast, and prostate cancer in a subset of UK Biobank participants who completed a submaximal fitness test in 2009-12 (N = 72,572). We also investigated relationships using two-sample Mendelian randomisation (MR), odds ratios (ORs) were estimated using the inverse-variance weighted method. RESULTS After a median of 11 years of follow-up, 4290 cancers of interest were diagnosed. A 3.5 ml O2⋅min-1⋅kg-1 total-body mass increase in fitness (equivalent to 1 metabolic equivalent of task (MET), approximately 0.5 standard deviation (SD)) was associated with lower risks of endometrial (HR = 0.81, 95% CI: 0.73-0.89), colorectal (0.94, 0.90-0.99), and breast cancer (0.96, 0.92-0.99). In MR analyses, a 0.5 SD increase in genetically predicted O2⋅min-1⋅kg-1 fat-free mass was associated with a lower risk of breast cancer (OR = 0.92, 95% CI: 0.86-0.98). After adjusting for adiposity, both the observational and genetic associations were attenuated. DISCUSSION Higher fitness levels may reduce risks of endometrial, colorectal, and breast cancer, though relationships with adiposity are complex and may mediate these relationships. Increasing fitness, including via changes in body composition, may be an effective strategy for cancer prevention.
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Affiliation(s)
- Eleanor L Watts
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Tomas I Gonzales
- MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Tessa Strain
- MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Pedro F Saint-Maurice
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - D Timothy Bishop
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Mattias Johansson
- Genomics Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Temitope O Keku
- Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, NC, USA
| | | | - Victor Moreno
- Oncology Data Analytics Program, Catalan Institute of Oncology-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine and University of Barcelona Institute for Complex Systems (UBICS), University of Barcelona, Barcelona, Spain
- ONCOBEL Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Polly A Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- School of Public Health, University of Washington, Seattle, WA, USA
| | - Christina C Newton
- Department of Population Science, American Cancer Society, Atlanta, GA, USA
| | - Rish K Pai
- Department of Laboratory Medicine and Pathology, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - Mark P Purdue
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Cornelia M Ulrich
- Huntsman Cancer Institute and Department of Population Health Sciences, University of Utah, Salt Lake City, UT, USA
| | - Karl Smith-Byrne
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Bethany Van Guelpen
- Department of Radiation Sciences, Oncology Unit, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - Felix R Day
- MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Katrien Wijndaele
- MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Nicholas J Wareham
- MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, UK
| | - Charles E Matthews
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Steven C Moore
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Soren Brage
- MRC Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, UK.
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7
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Zhang X, Zhuang Y, Qin W, Yang L, Song Y. The relationship between skeletal muscle mass and exercise capacity in patients undergoing hemodialysis: An exploratory secondary-analysis. Hemodial Int 2024; 28:98-106. [PMID: 37816682 DOI: 10.1111/hdi.13115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 10/12/2023]
Abstract
BACKGROUND Protein-energy wasting is commonly observed in patients undergoing hemodialysis, leading to reduced muscle mass and, in severe cases, sarcopenia, which significantly impacts the patients' quality of life and clinical outcomes. Exercise interventions are frequently employed to address muscle loss in these patients. However, the relationship between exercise capacity and skeletal muscle mass in this context remains uncertain. In this study, researchers conducted a series of body composition analysis and exercise capacity test to explore the relationship between exercise capacity and skeletal muscle mass. METHODS This study recruited 32 patients undergoing hemodialysis and analyzed their demographic and clinical parameters. To assess aerobic exercise capacity, the incremental shuttle walking test (ISWT) was conducted, while the handgrip strength test was used to evaluate muscle strength. The patients' body compositions were assessed using the Fresenius Body Composition Monitor, and the appendicular skeletal muscle was scanned using a GE Healthcare Lunar iDXA scanner. Three sequential linear models were employed to model the relationship between ISWT and skeletal muscle mass. Model 1 regressed ISWT against gender and age; Model 2 added handgrip strength, fat tissue index, and Davies comorbidity scores as additional predictors; and Model 3 further included the appendicular skeletal muscle index (appendicular skeletal muscle/height). FINDINGS After controlling for age and gender (Model 1: R2 = 0.373), and subsequently including handgrip strength, fat tissue index, and Davies comorbidity score effects (Model 2: R2 = 0.581), the impact of appendicular skeletal muscle on ISWT was found to be non-significant (Model 3: R2 = 0.600). CONCLUSION There was no significant correlation observed between exercise capacity and skeletal muscle mass in patients undergoing hemodialysis, indicating the factors influencing exercise capacity in this patient population are complex and that increasing skeletal muscle mass may not necessarily involve solely addressing the improvement of exercise capacity.
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Affiliation(s)
- Xuanrui Zhang
- Medical School (School of Nursing), Nantong University, Nantong, Jiangsu, PR China
| | - Yan Zhuang
- Medical School (School of Nursing), Nantong University, Nantong, Jiangsu, PR China
| | - Wen Qin
- Affiliated Hospital of Nantong University, Nantong, Jiangsu, PR China
| | - Lun Yang
- Medical School (School of Nursing), Nantong University, Nantong, Jiangsu, PR China
| | - Yan Song
- Medical School (School of Nursing), Nantong University, Nantong, Jiangsu, PR China
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8
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Wang L, Wang J. EFFECTS OF HIGH-INTENSITY TRAINING ON ENDURANCE IN BASKETBALL PLAYERS. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
ABSTRACT Introduction: The aerobic endurance training of sports athletes has become the focus of research in institutions and related units. One of the recent proposals is high-intensity interval training to develop athletic aerobic endurance. Objective: Study the effect of high-intensity interval training on aerobic endurance in basketball players. Methods: Fifteen athletes from a university were randomly selected and divided into a high-intensity interval training group, a moderate-intensity continuous training group, and a low-intensity continuous training group, with the control of external influence factors. The indicators analyzed were the average aerobic endurance index of maximal oxygen consumption, average anaerobic capacity, and average maximal power output. The data were obtained before and after the experiment. They were compared and discussed using statistical analysis. Results: The average maximal oxygen consumption in the three training groups increased significantly, and the effect was most evident under the high-intensity intermittent training conditions. This training method could increase the maximal exercise time of the normal groups by up to two times. Conclusion: Intermittent high-intensity training can effectively improve the aerobic endurance of basketball players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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Affiliation(s)
- Lina Wang
- Hangzhou Vocational and Technical College, China
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