101
|
Hartman YAW, Hopman MTE, Schreuder TH, Verheggen RJHM, Scholten RR, Oudegeest‐Sander MH, Poelkens F, Maiorana AJ, Naylor LH, Willems PH, Tack CJ, Thijssen DHJ, Green DJ. Improvements in fitness are not obligatory for exercise training-induced improvements in CV risk factors. Physiol Rep 2018; 6:e13595. [PMID: 29464893 PMCID: PMC5820463 DOI: 10.14814/phy2.13595] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 01/04/2017] [Indexed: 12/18/2022] Open
Abstract
The purpose of this study was to assess whether changes in physical fitness relate to changes in cardiovascular risk factors following standardized, center-based and supervised exercise training programs in subjects with increased cardiovascular risk. We pooled data from exercise training studies of subjects with increased cardiovascular risk (n = 166) who underwent 8-52 weeks endurance training. We determined fitness (i.e., peak oxygen uptake) and traditional cardiovascular risk factors (body mass index, blood pressure, total cholesterol, high-density lipoprotein cholesterol), before and after training. We divided subjects into quartiles based on improvement in fitness, and examined whether these groups differed in terms of risk factors. Associations between changes in fitness and in cardiovascular risk factors were further tested using Pearson correlations. Significant heterogeneity was apparent in the improvement of fitness and individual risk factors, with nonresponder rates of 17% for fitness, 44% for body mass index, 33% for mean arterial pressure, 49% for total cholesterol, and 49% for high-density lipoprotein cholesterol. Neither the number, nor the magnitude, of change in cardiovascular risk factors differed significantly between quartiles of fitness change. Changes in fitness were not correlated with changes in cardiovascular risk factors (all P > 0.05). Our data suggest that significant heterogeneity exists in changes in peak oxygen uptake after training, while improvement in fitness did not relate to improvement in cardiovascular risk factors. In subjects with increased cardiovascular risk, improvements in fitness are not obligatory for training-induced improvements in cardiovascular risk factors.
Collapse
Affiliation(s)
- Yvonne A. W. Hartman
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Maria T. E. Hopman
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
- Division of Human NutritionWageningen UniversityWageningenThe Netherlands
| | - Tim H. Schreuder
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
| | | | - Ralph R. Scholten
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Madelijn H. Oudegeest‐Sander
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
- Department of Geriatric MedicineRadboud University Medical CenterNijmegenThe Netherlands
| | - Fleur Poelkens
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
| | - Andrew J. Maiorana
- Advanced Heart Failure and Cardiac Transplant ServiceRoyal Perth HospitalPerthWestern AustraliaAustralia
- School of Physiotherapy and Exercise ScienceCurtin UniversityPerthWestern AustraliaAustralia
- Allied Health DepartmentFiona Stanley HospitalMurdochWestern AustraliaAustralia
| | - Louise H. Naylor
- Allied Health DepartmentFiona Stanley HospitalMurdochWestern AustraliaAustralia
- The School of Hum an Sciences (Exercise and Sport Science)The University of Western AustraliaCrawleyWestern AustraliaAustralia
| | - Peter H. Willems
- Department of BiochemistryRadboud Institute for Molecular Life SciencesNijmegenThe Netherlands
| | - Cees J. Tack
- Department of Internal MedicineRadboud University Medical CenterNijmegenThe Netherlands
| | - Dick H. J. Thijssen
- Department of PhysiologyRadboud University Medical CenterNijmegenThe Netherlands
- Research institute for Sport and Exercise SciencesLiverpool John Moores UniversityLiverpoolUnited Kingdom
| | - Daniel J. Green
- The School of Hum an Sciences (Exercise and Sport Science)The University of Western AustraliaCrawleyWestern AustraliaAustralia
- Research institute for Sport and Exercise SciencesLiverpool John Moores UniversityLiverpoolUnited Kingdom
- National Health and Medical Research Council of AustraliaCanberraAustralia
| |
Collapse
|
102
|
Kiviniemi AM, Perkiömäki N, Auvinen J, Niemelä M, Tammelin T, Puukka K, Ruokonen A, Keinänen-Kiukaanniemi S, Tulppo MP, Järvelin MR, Jämsä T, Huikuri HV, Korpelainen R. Fitness, Fatness, Physical Activity, and Autonomic Function in Midlife. Med Sci Sports Exerc 2018; 49:2459-2468. [PMID: 29135784 DOI: 10.1249/mss.0000000000001387] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE Although low cardiorespiratory fitness (CRF), physical inactivity, and obesity are associated with impaired autonomic function, they are also extensively interrelated. The present study aimed to assess the extent to which they contribute to autonomic function independently of each other. METHODS At the age of 46 yr, 1383 men and 1761 women without cardiorespiratory diseases and diabetes underwent assessments of vagally mediated heart rate (HR) variability (root mean square of successive differences in R-R interval (rMMSD)), peak HR during a submaximal step test (CRF), and 60-s HR recovery (HRR). Moderate-to-vigorous physical activity (MVPA; ≥3.5 METs, 2 wk) was measured by wrist-worn accelerometer and body fat percentage (Fat%) by bioimpedance. RESULTS In men, CRF and Fat% were significantly associated with higher rMSSD (standardized β = 0.31 and -0.16) and HRR (β = 0.19 and -0.18), whereas higher MVPA was linked with higher HRR (β = 0.13) when including CRF, MVPA, and Fat% in the initial regression. After adjustments for other lifestyle and cardiometabolic factors, CRF remained significantly associated with rMMSD (β = 0.24) and HRR (β = 0.14), as did MVPA with HRR (β = 0.11). In women, CRF was associated with rMSSD (β = 0.23) and HRR (β = 0.15), and MVPA (β = 0.17) and Fat% (β = -0.07) with HRR, when CRF, MVPA, and Fat% were adjusted for each other. After further adjustments, CRF remained a significant determinant of rMSSD (β = 0.20) and HRR (β = 0.13), as did MVPA with HRR (β = 0.15). The final models explained 23% and 21% of variation in rMSSD and HRR in men, and 10% and 12% in women, respectively. CONCLUSIONS CRF was a more important determinant of cardiac autonomic function than MVPA and body fat. Furthermore, MVPA but not body fat was independently associated with cardiac autonomic function in both men and women.
Collapse
Affiliation(s)
- Antti M Kiviniemi
- 1Research Unit of Internal Medicine, University of Oulu, Oulu, FINLAND; 2Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, FINLAND; 3Center for Life Course Health Research, University of Oulu, Oulu, FINLAND; 4Unit of Primary Care, University of Oulu, Oulu, FINLAND; 5Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, FINLAND; 6LIKES Research Centre for Physical Activity and Health, Jyväskylä, FINLAND; 7NordLab Oulu, Medical Research Center Oulu, Oulu University Hospital and Department of Clinical Chemistry, University of Oulu, Oulu, FINLAND; 8Department of Epidemiology and Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UNITED KINGDOM; 9Biocenter Oulu, University of Oulu, Oulu, FINLAND; 10Diagnostic Imaging, Oulu University Hospital, Oulu, FINLAND; and 11Department of Sports and Exercise Medicine, Oulu Deaconess Institute, Oulu, FINLAND
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
103
|
Koch LG, Britton SL. Theoretical and Biological Evaluation of the Link between Low Exercise Capacity and Disease Risk. Cold Spring Harb Perspect Med 2018; 8:cshperspect.a029868. [PMID: 28389512 DOI: 10.1101/cshperspect.a029868] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Large-scale epidemiological studies show that low exercise capacity is the highest risk factor for all-cause morbidity and mortality relative to other conditions including diabetes, hypertension, and obesity. This led us to formulate the energy transfer hypothesis (ETH): Variation in capacity for energy transfer is the central mechanistic determinant of the divide between disease and health. As a test of this hypothesis, we predicted that two-way selective breeding of genetically heterogeneous rats for low and high intrinsic treadmill running capacity (a surrogate for energy transfer) would also produce rats that differ for disease risks. The lines are termed low-capacity runners (LCRs) and high-capacity runners (HCRs) and, after 36 generations of selection, they differ by more than eightfold in running capacity. Consistent with the ETH, the LCRs score high for developing disease risks, including metabolic syndrome, neurodegeneration, cognitive impairment, fatty liver disease, susceptibility to cancer, and reduced longevity. The HCRs are resistant to the development of these disease risks. Here we synthesize ideas on nonequilibrium thermodynamics and evolution from Ilya Prigogine, Hans Krebs, and Peter Mitchell to formulate theoretic explanations for the ETH. First, at every moment in time, the atoms and molecules of organisms are reorganizing to pursue avenues for energy transfer. Second, this continuous organization is navigating in a constantly changing environment such that "strategies" are perpetually in flux and do not leave a simple footprint (evolution). Third, as a consequence, human populations demonstrate a wide variation in capacity for energy transfer that mirrors mechanistically the divide between disease and health.
Collapse
Affiliation(s)
- Lauren Gerard Koch
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan 48130
| | - Steven L Britton
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan 48130.,Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan 48130
| |
Collapse
|
104
|
Morales JS, Padilla JR, Valenzuela PL, Santana-Sosa E, Rincón-Castanedo C, Santos-Lozano A, Herrera-Olivares AM, Madero L, San Juan AF, Fiuza-Luces C, Lucia A. Inhospital Exercise Training in Children With Cancer: Does It Work for All? Front Pediatr 2018; 6:404. [PMID: 30619798 PMCID: PMC6305726 DOI: 10.3389/fped.2018.00404] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 12/05/2018] [Indexed: 12/18/2022] Open
Abstract
Purpose: Physical exercise training might counteract the weakening effects of both pediatric cancer and anti-cancer treatment. We aimed to analyze the prevalence of "responders" and "non-responders" to inhospital exercise training in children with cancer and to identify the factors that could influence responsiveness, which might help personalize exercise interventions for this patient population. Methods: We performed an ancillary analysis of the randomized controlled trial "Physical activity in Pediatric Cancer" (NCT01645436), in which 49 children with solid tumors were allocated to an inhospital exercise intervention or control group. The present study focused on the children in the former group (n = 24, 10 ± 4 years), who performed 3 weekly training sessions (aerobic + strength exercises). The intervention lasted 19 ± 8 weeks (i.e., from the start to the end of neoadjuvant chemotherapy treatment). A responder-vs-non-responder analysis was performed for physical capacity-related endpoints (five-repetition maximum strength, functional mobility tests, and cardiorespiratory fitness [CRF]). Only those participants showing improvements in a given test of a magnitude greater than both the random error and the threshold for clinically meaningful changes were considered responders. Results: Most participants improved their performance in the strength tests, with 80, 88, and 93% of total showing a positive response for seated bench press, lateral row, and leg press, respectively (p < 0.001). No significant improvements were observed for the functional mobility tests or CRF (p > 0.05, rate of responsiveness ≤ 50%). No differences between responders and non-responders were observed for sex, age, type of cancer, or treatment (i.e., including or not anthracyclines/radiotherapy). However, significant differences (p < 0.05) were observed between responders and non-responders for baseline performance in all the tests, and a significant (p < 0.05) inverse relationship was found between baseline performance and relative improvement for most endpoints. Conclusions: Although most children improved their muscle strength after the exercise intervention, a considerable individual variability was observed for the training responsiveness of functional mobility and CRF. A lower baseline performance was associated with a higher responsiveness for all the study endpoints, with the fittest children at the start of treatment showing the lowest responses. Efforts to individualize exercise prescription are needed to maximize responsiveness in pediatric cancer patients.
Collapse
Affiliation(s)
- Javier S Morales
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Julio R Padilla
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Pedro L Valenzuela
- Systems Biology Department, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | | | | | - Alejandro Santos-Lozano
- i+HeALTH Research Group, Department of Health Sciences, Miguel de Cervantes European University, Valladolid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre ("i+12"), Madrid, Spain
| | | | - Luis Madero
- Hospital Universitario Infantil Niño Jesús, Madrid, Spain
| | - Alejandro F San Juan
- Departamento de Salud y Rendimiento Humano, Universidad Politécnica de Madrid, Madrid, Spain
| | - Carmen Fiuza-Luces
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre ("i+12"), Madrid, Spain
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain.,Instituto de Investigación Sanitaria Hospital 12 de Octubre ("i+12"), Madrid, Spain
| |
Collapse
|
105
|
Chung E, Joiner HE, Skelton T, Looten KD, Manczak M, Reddy PH. Maternal exercise upregulates mitochondrial gene expression and increases enzyme activity of fetal mouse hearts. Physiol Rep 2017; 5:5/5/e13184. [PMID: 28292876 PMCID: PMC5350185 DOI: 10.14814/phy2.13184] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 02/06/2017] [Indexed: 12/15/2022] Open
Abstract
Maternal exercise during pregnancy has been shown to improve the long‐term health of offspring in later life. Mitochondria are important organelles for maintaining adequate heart function, and mitochondrial dysfunction is linked to cardiovascular disease. However, the effects of maternal exercise during pregnancy on mitochondrial biogenesis in hearts are not well understood. Thus, the purpose of this study was to test the hypothesis that mitochondrial gene expression in fetal myocardium would be upregulated by maternal exercise. Twelve‐week‐old female C57BL/6 mice were divided into sedentary and exercise groups. Mice in the exercise group were exposed to a voluntary cage‐wheel from gestational day 1 through 17. Litter size and individual fetal weights were taken when pregnant dams were sacrificed at 17 days of gestation. Three to four hearts from the same group were pooled to study gene expression, protein expression, and enzyme activity. There were no significant differences in litter size, sex distribution, and average fetal body weight per litter between sedentary and exercised dams. Genes encoding mitochondrial biogenesis and dynamics, including nuclear respiratory factor‐1 (Nrf1), Nrf2, and dynamin‐related GTPase termed mitofusin‐2 (Mfn2) were significantly upregulated in the fetal hearts from exercised dams. Cytochrome c oxidase activity and ATP production were significantly increased, while the hydrogen peroxide level was significantly decreased in the fetal hearts by maternal exercise. Our results demonstrate that maternal exercise initiated at day 1 of gestation could transfer the positive mitochondrial phenotype to fetal hearts.
Collapse
Affiliation(s)
- Eunhee Chung
- Department of Kinesiology, Health, and Nutrition, University of Texas at San Antonio, San Antonio, Texas
| | - Hayli E Joiner
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, Texas
| | - Tracer Skelton
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, Texas
| | - Kalli D Looten
- Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, Texas
| | - Maria Manczak
- Cell Biology and Biochemistry and Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, Texas
| | - P Hemachandra Reddy
- Cell Biology and Biochemistry and Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, Texas
| |
Collapse
|
106
|
Pickering C, Kiely J. Understanding Personalized Training Responses: Can Genetic Assessment Help? ACTA ACUST UNITED AC 2017. [DOI: 10.2174/1875399x01710010191] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Traditional exercise prescription is based on the assumption that exercise adaptation is predictable and standardised across individuals. However, evidence has emerged in the past two decades demonstrating that large inter-individual variation exists regarding the magnitude and direction of adaption following exercise.Objective:The aim of this paper was to discuss the key factors influencing this personalized response to exercise in a narrative review format.Findings:Genetic variation contributes significantly to the personalized training response, with specific polymorphisms associated with differences in exercise adaptation. These polymorphisms exist in a number of pathways controlling exercise adaptation. Environmental factors such as nutrition, psycho-emotional response, individual history and training programme design also modify the inter-individual adaptation following training. Within the emerging field of epigenetics, DNA methylation, histone modifications and non-coding RNA allow environmental and lifestyle factors to impact genetic expression. These epigenetic mechanisms are themselves modified by genetic and non-genetic factors, illustrating the complex interplay between variables in determining the adaptive response. Given that genetic factors are such a fundamental modulator of the inter-individual response to exercise, genetic testing may provide a useful and affordable addition to those looking to maximise exercise adaption, including elite athletes. However, there are ethical issues regarding the use of genetic tests, and further work is needed to provide evidence based guidelines for their use.Conclusion:There is considerable inter-individual variation in the adaptive response to exercise. Genetic assessments may provide an additional layer of information allowing personalization of training programmes to an individual’s unique biology.
Collapse
|
107
|
Pickering C, Kiely J. Can the ability to adapt to exercise be considered a talent-and if so, can we test for it? SPORTS MEDICINE-OPEN 2017; 3:43. [PMID: 29188457 PMCID: PMC5707216 DOI: 10.1186/s40798-017-0110-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 11/08/2017] [Indexed: 11/10/2022]
Abstract
Talent identification (TI) is a popular and hugely important topic within sports performance, with an ever-increasing amount of resources dedicated to unveiling the next sporting star. However, at present, most TI processes appear to select high-performing individuals at the present point in time, as opposed to identifying those individuals with the greatest capacity to improve. This represents a potential inefficiency within the TI process, reducing its effectiveness. In this article, we discuss whether the ability to adapt favorably, and with a large magnitude, to physical training can be considered a talent, testing it against proposed criteria. We also discuss whether, if such an ability can be considered a talent, being able to test for it as part of the TI process would be advantageous. Given that such a capacity is partially heritable, driven by genetic variation between individuals that mediate the adaptive response, we also explore whether the information gained from genetic profiling can be used to identify those with the greatest capacity to improve. Although there are some ethical hurdles which must be considered, the use of genetic information to identify those individuals with the greatest capacity appears to hold promise and may improve both the efficiency and effectiveness of contemporary TI programmes.
Collapse
Affiliation(s)
- Craig Pickering
- Institute of Coaching and Performance, School of Sport and Wellbeing, University of Central Lancashire, Preston, UK. .,Exercise and Nutritional Genomics Research Centre, DNAFit Ltd, London, UK.
| | - John Kiely
- Institute of Coaching and Performance, School of Sport and Wellbeing, University of Central Lancashire, Preston, UK
| |
Collapse
|
108
|
Pickering C, Kiely J. Exercise genetics: seeking clarity from noise. BMJ Open Sport Exerc Med 2017; 3:e000309. [PMID: 29259816 PMCID: PMC5731222 DOI: 10.1136/bmjsem-2017-000309] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2017] [Indexed: 11/30/2022] Open
Affiliation(s)
- Craig Pickering
- School of Sport and Wellbeing, Institute of Coaching and Performance, University of Central Lancashire, Preston, UK.,Exercise and Nutritional Genomics Research Centre, DNAFit Ltd, London, UK
| | - John Kiely
- School of Sport and Wellbeing, Institute of Coaching and Performance, University of Central Lancashire, Preston, UK
| |
Collapse
|
109
|
Williams CJ, Williams MG, Eynon N, Ashton KJ, Little JP, Wisloff U, Coombes JS. Genes to predict VO 2max trainability: a systematic review. BMC Genomics 2017; 18:831. [PMID: 29143670 PMCID: PMC5688475 DOI: 10.1186/s12864-017-4192-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background Cardiorespiratory fitness (VO2max) is an excellent predictor of chronic disease morbidity and mortality risk. Guidelines recommend individuals undertake exercise training to improve VO2max for chronic disease reduction. However, there are large inter-individual differences between exercise training responses. This systematic review is aimed at identifying genetic variants that are associated with VO2max trainability. Methods Peer-reviewed research papers published up until October 2016 from four databases were examined. Articles were included if they examined genetic variants, incorporated a supervised aerobic exercise intervention; and measured VO2max/VO2peak pre and post-intervention. Results Thirty-five articles describing 15 cohorts met the criteria for inclusion. The majority of studies used a cross-sectional retrospective design. Thirty-two studies researched candidate genes, two used Genome-Wide Association Studies (GWAS), and one examined mRNA gene expression data, in addition to a GWAS. Across these studies, 97 genes to predict VO2max trainability were identified. Studies found phenotype to be dependent on several of these genotypes/variants, with higher responders to exercise training having more positive response alleles than lower responders (greater gene predictor score). Only 13 genetic variants were reproduced by more than two authors. Several other limitations were noted throughout these studies, including the robustness of significance for identified variants, small sample sizes, limited cohorts focused primarily on Caucasian populations, and minimal baseline data. These factors, along with differences in exercise training programs, diet and other environmental gene expression mediators, likely influence the ideal traits for VO2max trainability. Conclusion Ninety-seven genes have been identified as possible predictors of VO2max trainability. To verify the strength of these findings and to identify if there are more genetic variants and/or mediators, further tightly-controlled studies that measure a range of biomarkers across ethnicities are required.
Collapse
Affiliation(s)
- Camilla J Williams
- Centre for Research on Exercise, Physical Activity and Health (CRExPAH), School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia
| | - Mark G Williams
- Molecular Genetics Department, Mater Pathology, South Brisbane, Queensland, Australia
| | - Nir Eynon
- Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Melbourne, 8001, Australia.
| | - Kevin J Ashton
- Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia, Okanagan, Canada
| | - Ulrik Wisloff
- Centre for Research on Exercise, Physical Activity and Health (CRExPAH), School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia.,Cardiac K.G. Jebsen Center for Exercise in Medicine at Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jeff S Coombes
- Centre for Research on Exercise, Physical Activity and Health (CRExPAH), School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia
| |
Collapse
|
110
|
Yan X, Eynon N, Papadimitriou ID, Kuang J, Munson F, Tirosh O, O'Keefe L, Griffiths LR, Ashton KJ, Byrne N, Pitsiladis YP, Bishop DJ. The gene SMART study: method, study design, and preliminary findings. BMC Genomics 2017; 18:821. [PMID: 29143594 PMCID: PMC5688409 DOI: 10.1186/s12864-017-4186-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The gene SMART (genes and the Skeletal Muscle Adaptive Response to Training) Study aims to identify genetic variants that predict the response to both a single session of High-Intensity Interval Exercise (HIIE) and to four weeks of High-Intensity Interval Training (HIIT). While the training and testing centre is located at Victoria University, Melbourne, three other centres have been launched at Bond University, Queensland University of Technology, Australia, and the University of Brighton, UK. Currently 39 participants have already completed the study and the overall aim is to recruit 200 moderately-trained, healthy Caucasians participants (all males 18-45 y, BMI < 30). Participants will undergo exercise testing and exercise training by an identical exercise program. Dietary habits will be assessed by questionnaire and dietitian consultation. Activity history is assessed by questionnaire and current activity level is assessed by an activity monitor. Skeletal muscle biopsies and blood samples will be collected before, immediately after and 3 h post HIIE, with the fourth resting biopsy and blood sample taken after four weeks of supervised HIIT (3 training sessions per week). Each session consists of eight to fourteen 2-min intervals performed at the pre-training lactate threshold (LT) power plus 40 to 70% of the difference between pre-training lactate threshold (LT) and peak aerobic power (Wpeak). A number of muscle and blood analyses will be performed, including (but not limited to) genotyping, mitochondrial respiration, transcriptomics, protein expression analyses, and enzyme activity. The participants serve as their own controls. Even though the gene SMART study is tightly controlled, our preliminary findings still indicate considerable individual variability in both performance (in-vivo) and muscle (in-situ) adaptations to similar training. More participants are required to allow us to better investigate potential underlying genetic and molecular mechanisms responsible for this individual variability.
Collapse
Affiliation(s)
- Xu Yan
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.,College of Health and Biomedicine, Victoria University, Melbourne, Australia.,Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Nir Eynon
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia.,Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Ioannis D Papadimitriou
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
| | - Jujiao Kuang
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
| | - Fiona Munson
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
| | - Oren Tirosh
- School of Health Sciences, Swinburne University of Technology, Melbourne, Australia
| | - Lannie O'Keefe
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia
| | - Lyn R Griffiths
- Institute of Health and Biomedical Innovation (IHBI), Genomics Research Centre, Queensland University of Technology, Brisbane, Australia
| | - Kevin J Ashton
- Bond Institute of Health and Sport (BIHS), Bond University, Gold Coast, Australia
| | - Nuala Byrne
- Bond Institute of Health and Sport (BIHS), Bond University, Gold Coast, Australia
| | - Yannis P Pitsiladis
- FIMS Reference Collaborating Centre of Sports Medicine for Anti-Doping Research, University of Brighton, Eastbourne, UK
| | - David J Bishop
- Institute of Sport, Exercise and Active Living (ISEAL), College of Sport and Exercise Science, Victoria University, PO Box 14428, Melbourne, VIC, 8001, Australia. .,School of Medical and Health Sciences, Edith Cowan University, Joondalup, Australia.
| |
Collapse
|
111
|
Almendros I, Crespo A, Tura-Ceide O, Bonsignore MR. Clinical physiology and sleep: insights from the European Respiratory Society Congress 2017. J Thorac Dis 2017; 9:S1532-S1536. [PMID: 29255634 PMCID: PMC5717356 DOI: 10.21037/jtd.2017.11.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/09/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 28029-Madrid, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Andrea Crespo
- Unidad de Sueño. Hospital Universitario Rio Hortega de Valladolid, Valladolid, Spain
| | - Olga Tura-Ceide
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 28029-Madrid, Spain
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Department of Pulmonary Medicine, Hospital Clinic, Barcelona, Spain
| | - Maria R. Bonsignore
- Biomedical Department of Internal and Specialistic Medicine (DiBiMIS), University of Palermo, Palermo, Italy
- Institute of Biomedicine and Molecular Immunology (IBIM), National Research Council (CNR), Palermo, Italy
| |
Collapse
|
112
|
A compendium of physical exercise-related human genes: an 'omic scale analysis. Biol Sport 2017; 35:3-11. [PMID: 30237656 PMCID: PMC6135974 DOI: 10.5114/biolsport.2018.70746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/11/2016] [Accepted: 06/05/2017] [Indexed: 12/14/2022] Open
Abstract
Regular exercise is an exogenous factor of gene regulation with numerous health benefits. The study aimed to evaluate human genes linked to physical exercise in an ‘omic scale, addressing biological questions to the generated database. Three literature databases were searched with the terms ‘exercise’, ‘fitness’, ‘physical activity’, ‘genetics’ and ‘gene expression’. For additional references, papers were scrutinized and a text-mining tool was used. Papers linking genes to exercise in humans through microarray, RNA-Seq, RT-PCR and genotyping studies were included. Genes were extracted from the collected literature, together with information on exercise protocol, experimental design, gender, age, number of individuals, analytical method, fold change and statistical data. The ‘omic scale dataset was characterized and evaluated with bioinformatics tools searching for gene expression patterns, functional meaning and gene clusters. As a result, a physical exercise-related human gene compendium was created, with data from 58 scientific papers and 5.147 genes functionally correlated with 17 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. While 50.9% of the gene set was up-regulated, 41.9% was down-regulated. 743 up- and 530 down-regulated clusters were found, some connected by regulatory networks. To summarize, up- and down-regulation was encountered, with a wide genomic distribution of the gene set and up- and down-regulated clusters possibly assembled by functional gene evolution. Physical exercise elicits a widespread response in gene expression.
Collapse
|
113
|
Gray SR, Aird TP, Farquharson AJ, Horgan GW, Fisher E, Wilson J, Hopkins GE, Anderson B, Ahmad SA, Davis SR, Drew JE. Inter-individual responses to sprint interval training, a pilot study investigating interactions with the sirtuin system. Appl Physiol Nutr Metab 2017; 43:84-93. [PMID: 28903011 DOI: 10.1139/apnm-2017-0224] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Sprint interval training (SIT) is reported to improve blood glucose control and may be a useful public health tool. The sirtuins and associated genes are emerging as key players in blood glucose control. This study investigated the interplay between the sirtuin/NAD system and individual variation in insulin sensitivity responses after SIT in young healthy individuals. Before and after 4 weeks of SIT, body mass and fat percentage were measured and oral glucose tolerance tests performed in 20 young healthy participants (7 females). Blood gene expression profiles (all 7 mammalian sirtuin genes and 15 enzymes involved in conversion of tryptophan, bioavailable vitamin B3, and metabolic precursors to NAD). NAD/NADP was measured in whole blood. Significant reductions in body weight and body fat post-SIT were associated with altered lipid profiles, NAD/NADP, and regulation of components of the sirtuin/NAD system (NAMPT, NMNAT1, CD38, and ABCA1). Variable improvements in measured metabolic health parameters were evident and attributed to different responses in males and females, together with marked inter-individual variation in responses of the sirtuin/NAD system to SIT.
Collapse
Affiliation(s)
- Stuart R Gray
- a Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Tom P Aird
- b The Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| | | | - Graham W Horgan
- c Biomathematics and Statistics Scotland, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Emily Fisher
- a Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - John Wilson
- a Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Gareth E Hopkins
- d Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| | - Bradley Anderson
- d Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| | - Syed A Ahmad
- d Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| | - Stuart R Davis
- d Institute of Medical Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| | - Janice E Drew
- b The Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD, UK
| |
Collapse
|
114
|
Barberio MD, Huffman KM, Giri M, Hoffman EP, Kraus WE, Hubal MJ. Pyruvate Dehydrogenase Phosphatase Regulatory Gene Expression Correlates with Exercise Training Insulin Sensitivity Changes. Med Sci Sports Exerc 2017; 48:2387-2397. [PMID: 27846149 DOI: 10.1249/mss.0000000000001041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE Whole body insulin sensitivity (Si) typically improves after aerobic exercise training; however, individual responses can be highly variable. The purpose of this study was to use global gene expression to identify skeletal muscle genes that correlate with exercise-induced Si changes. METHODS Longitudinal cohorts from the Studies of Targeted Risk Reduction Intervention through Defined Exercise were used as Discovery (Affymetrix) and Confirmation (Illumina) of vastus lateralis gene expression profiles. Discovery (n = 39; 21 men) and Confirmation (n = 42; 19 men) cohorts were matched for age (52 ± 8 vs 51 ± 10 yr), body mass index (30.4 ± 2.8 vs 29.7 ± 2.8 kg·m), and V˙O2max (30.4 ± 2.8 vs 29.7 ± 2.8 mL·kg·min). Si was determined via intravenous glucose tolerance test pretraining and posttraining. Pearson product-moment correlation coefficients determined relationships between a) baseline and b) training-induced changes in gene expression and %ΔSi after training. RESULTS Expression of 2454 (Discovery) and 1778 genes (Confirmation) at baseline were significantly (P < 0.05) correlated to %ΔSi; 112 genes overlapped. Pathway analyses identified Ca signaling-related transcripts in this 112-gene list. Expression changes of 1384 (Discovery) and 1288 genes (Confirmation) after training were significantly (P < 0.05) correlated to %ΔSi; 33 genes overlapped, representing contractile apparatus of skeletal and smooth muscle genes. Pyruvate dehydrogenase phosphatase regulatory subunit expression at baseline (P = 0.01, r = 0.41) and posttraining (P = 0.01, r = 0.43) were both correlated with %ΔSi. CONCLUSIONS Exercise-induced adaptations in skeletal muscle Si are related to baseline levels of Ca-regulating transcripts, which may prime the muscle for adaptation. Relationships between %ΔSi and pyruvate dehydrogenase phosphatase regulatory, a regulatory subunit of the pyruvate dehydrogenase complex, indicate that the Si response is strongly related to key steps in metabolic regulation.
Collapse
Affiliation(s)
- Matthew D Barberio
- 1Research Center for Genetic Medicine, Children's National Medical Center, Durham, NC; 2Division of Rheumatology, Department of Medicine, Duke University School of Medicine, Durham, NC; 3Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC; 4Department of Exercise and Nutrition Sciences, George Washington University, WASHINGTON, DC; 5Division of Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC; and 6Department of Integrative Systems Biology, George Washington University, Washington, DC
| | | | | | | | | | | |
Collapse
|
115
|
PÄLVE KRISTIINAS, PAHKALA KATJA, SUOMELA EMMI, AATOLA HEIKKI, HULKKONEN JANNE, JUONALA MARKUS, LEHTIMÄKI TERHO, RÖNNEMAA TAPANI, VIIKARI JORMASA, KÄHÖNEN MIKA, HUTRI-KÄHÖNEN NINA, TELAMA RISTO, TAMMELIN TUIJA, RAITAKARI OLLIT. Cardiorespiratory Fitness and Risk of Fatty Liver. Med Sci Sports Exerc 2017; 49:1834-1841. [DOI: 10.1249/mss.0000000000001288] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
116
|
Pacheco C, Santos LHPD, Alves JO, Queiroz AND, Soares PM, Ceccatto VM. REGULAÇÃO GÊNICA DA VIA AMPK PELO EXERCÍCIO FÍSICO: REVISÃO SISTEMÁTICA E ANÁLISE IN SILICO. REV BRAS MED ESPORTE 2017. [DOI: 10.1590/1517-869220172304169935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Introdução: Novos estudos de regulação gênica do exercício físico por meio de técnicas pós-genômicas em ensaios de resistência (endurance) e força caracterizam a transcriptômica do exercício físico. Entre os genes afetados, destacamos a via da proteína quinase ativada por AMP (AMPK), cuja ativação ocorre durante o exercício como resultado das alterações dos níveis de fosfato energético da fibra muscular. Objetivo: Avaliar a via de sinalização da AMPK por revisão sistemática da expressão de genes e análise in silico. Método: Foi efetuada uma revisão sistemática para avaliar a regulação gênica da via de sinalização AMPK, caracterizando os genes estudados na literatura, as variações de regulação obtidas, na forma de fold change e tipos de exercício usados. Resultados: A via de sinalização AMPK mostrou 133 genes no repositório KEGG (Kyoto Encyclopedia of Genes and Genomes), os quais foram confrontados com a revisão sistemática da literatura, totalizando 65 genes. Dezessete genes apresentaram UR e 24 mostraram DR com relação ao seu respectivo controle. Além destes, 20 genes estavam presentes nos trabalhos, apresentando tanto UR e DR e quatro genes não apresentaram dados de regulação. Verificou-se regulação específica em função do tipo de exercício efetuado. Discussão: Dos 133 genes da via AMPK, 48,8% foram amostrados nos trabalhos revisados, indicando que uma parte significativa da via é regulada pelo exercício. O estudo apresentou a regulação gênica básica de dois mecanismos para a recuperação energética, a biogênese mitocondrial e o bloqueio da gliconeogênese. Conclusão: Este trabalho mostrou que o exercício atua ativamente na via de sinalização da AMPK, na importância da regulação via PGC-1α e no papel de outros genes, regulando a expressão de mais da metade dos genes amostrados.
Collapse
|
117
|
Stebbings GK, Williams AG, Herbert AJ, Lockey SJ, Heffernan SM, Erskine RM, Morse CI, Day SH. TTN
genotype is associated with fascicle length and marathon running performance. Scand J Med Sci Sports 2017; 28:400-406. [DOI: 10.1111/sms.12927] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2017] [Indexed: 01/10/2023]
Affiliation(s)
- G. K. Stebbings
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
| | - A. G. Williams
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
- Institute of Sport, Exercise and Health; University College London; London UK
| | - A. J. Herbert
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
| | - S. J. Lockey
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
- School of Medical Education; Newcastle University; Newcastle upon Tyne UK
| | - S. M. Heffernan
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
| | - R. M. Erskine
- Institute of Sport, Exercise and Health; University College London; London UK
- School of Sport and Exercise Sciences; Liverpool John Moores University; Liverpool UK
| | - C. I. Morse
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
| | - S. H. Day
- MMU Sports Genomics Laboratory; Department of Exercise and Sport Science; Manchester Metropolitan University; Crewe UK
| |
Collapse
|
118
|
Skeletal Muscle Hypertrophy with Concurrent Exercise Training: Contrary Evidence for an Interference Effect. Sports Med 2017; 46:1029-39. [PMID: 26932769 DOI: 10.1007/s40279-016-0496-y] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Over the last 30+ years, it has become axiomatic that performing aerobic exercise within the same training program as resistance exercise (termed concurrent exercise training) interferes with the hypertrophic adaptations associated with resistance exercise training. However, a close examination of the literature reveals that the interference effect of concurrent exercise training on muscle growth in humans is not as compelling as previously thought. Moreover, recent studies show that, under certain conditions, concurrent exercise may augment resistance exercise-induced hypertrophy in healthy human skeletal muscle. The purpose of this article is to outline the contrary evidence for an acute and chronic interference effect of concurrent exercise on skeletal muscle growth in humans and provide practical literature-based recommendations for maximizing hypertrophy when training concurrently.
Collapse
|
119
|
Montero D, Lundby C. Refuting the myth of non-response to exercise training: 'non-responders' do respond to higher dose of training. J Physiol 2017; 595:3377-3387. [PMID: 28133739 DOI: 10.1113/jp273480] [Citation(s) in RCA: 220] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 01/06/2017] [Indexed: 02/06/2023] Open
Abstract
KEY POINTS The prevalence of cardiorespiratory fitness (CRF) non-response gradually declines in healthy individuals exercising 60, 120, 180, 240 or 300 min per week for 6 weeks. Following a successive identical 6-week training period but comprising 120 min of additional exercise per week, CRF non-response is universally abolished. The magnitude of CRF improvement is primarily attributed to changes in haemoglobin mass. The potential for CRF improvement may be present and unveiled with appropriate exercise training stimuli in healthy individuals without exception. ABSTRACT One in five adults following physical activity guidelines are reported to not demonstrate any improvement in cardiorespiratory fitness (CRF). Herein, we sought to establish whether CRF non-response to exercise training is dose-dependent, using a between- and within-subject study design. Seventy-eight healthy adults were divided into five groups (1-5) respectively comprising one, two, three, four and five 60 min exercise sessions per week but otherwise following an identical 6-week endurance training (ET) programme. Non-response was defined as any change in CRF, determined by maximal incremental exercise power output (Wmax ), within the typical error of measurement (±3.96%). Participants classified as non-responders after the ET intervention completed a successive 6-week ET period including two additional exercise sessions per week. Maximal oxygen consumption (V̇O2 max ), haematology and muscle biopsies were assessed prior to and after each ET period. After the first ET period, Wmax increased (P < 0.05) in groups 2, 3, 4 and 5, but not 1. In groups 1, 2, 3, 4 and 5, 69%, 40%, 29%, 0% and 0% of individuals, respectively, were non-responders. After the second ET period, non-response was eliminated in all individuals. The change in V̇O2 max with exercise training independently determined Wmax response (partial correlation coefficient, rpartial ≥ 0.74, P < 0.001). In turn, total haemoglobin mass was the strongest independent determinant of V̇O2 max (rpartial = 0.49, P < 0.001). In conclusion, individual CRF non-response to exercise training is abolished by increasing the dose of exercise and primarily a function of haematological adaptations in oxygen-carrying capacity.
Collapse
Affiliation(s)
- David Montero
- Zurich Center for Integrative Human Physiology (ZIHP), Institute of Physiology, University of Zurich, Switzerland.,Department of Cardiology, University Hospital Zurich, Switzerland
| | - Carsten Lundby
- Zurich Center for Integrative Human Physiology (ZIHP), Institute of Physiology, University of Zurich, Switzerland
| |
Collapse
|
120
|
Zanuso S, Sacchetti M, Sundberg CJ, Orlando G, Benvenuti P, Balducci S. Exercise in type 2 diabetes: genetic, metabolic and neuromuscular adaptations. A review of the evidence. Br J Sports Med 2017; 51:1533-1538. [DOI: 10.1136/bjsports-2016-096724] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2017] [Indexed: 12/18/2022]
|
121
|
Gabriel BM, Zierath JR. The Limits of Exercise Physiology: From Performance to Health. Cell Metab 2017; 25:1000-1011. [PMID: 28467920 DOI: 10.1016/j.cmet.2017.04.018] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 04/14/2017] [Accepted: 04/17/2017] [Indexed: 12/21/2022]
Abstract
Many of the established positive health benefits of exercise have been documented by historical discoveries in the field of exercise physiology. These investigations often assess limits: the limits of performance, or the limits of exercise-induced health benefits. Indeed, several key findings have been informed by studying highly trained athletes, in addition to healthy or unhealthy people. Recent progress has been made in regard to skeletal muscle metabolism and personalized exercise regimes. In this perspective, we review some of the historical milestones of exercise physiology, discuss how these inform contemporary knowledge, and speculate on future questions.
Collapse
Affiliation(s)
- Brendan M Gabriel
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Juleen R Zierath
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden; Department of Molecular Medicine and Surgery, Section of Integrative Physiology, Karolinska Institutet, 171 76 Stockholm, Sweden; Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.
| |
Collapse
|
122
|
Sarzynski MA, Ghosh S, Bouchard C. Genomic and transcriptomic predictors of response levels to endurance exercise training. J Physiol 2017; 595:2931-2939. [PMID: 27234805 PMCID: PMC5407970 DOI: 10.1113/jp272559] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 05/24/2016] [Indexed: 01/28/2023] Open
Abstract
Predicting the responsiveness to regular exercise is a topic of great relevance due to its potential role in personalized exercise medicine applications. The present review focuses on cardiorespiratory fitness (commonly measured by maximal oxygen uptake, V̇O2 max ), a trait with wide-ranging impact on health and performance indicators. Gains in V̇O2 max demonstrate large inter-individual variation even in response to standardized exercise training programmes. The estimated ΔVO2 max heritability of 47% suggests that genomic-based predictors alone are insufficient to account for the total trainability variance. Candidate gene and genome-wide linkage studies have not significantly contributed to our understanding of the molecular basis of trainability. A genome-wide association study suggested that V̇O2 max trainability is influenced by multiple genes of small effects, but these findings still await rigorous replication. Valuable evidence, however, has been obtained by combining skeletal muscle transcript abundance profiles with common DNA variants for the prediction of the V̇O2 max response to exercise training. Although the physiological determinants of V̇O2 max measured at a given time are largely enunciated, what is poorly understood are the details of tissue-specific molecular mechanisms that limit V̇O2 max and related signalling pathways in response to exercise training. Bioinformatics explorations based on thousands of variants have been used to interrogate pathways and systems instead of single variants and genes, and the main findings, along with those from exercise experimental studies, have been summarized here in a working model of V̇O2 max trainability.
Collapse
Affiliation(s)
- Mark A. Sarzynski
- Department of Exercise Science, Arnold School of Public HealthUniversity of South CarolinaColumbiaSCUSA
| | - Sujoy Ghosh
- Cardiovascular and Metabolic Disorders Program and Centre for Computational BiologyDuke‐NUS Medical SchoolSingapore
| | - Claude Bouchard
- Human Genomics LaboratoryPennington Biomedical Research CentreBaton RougeLAUSA
| |
Collapse
|
123
|
Malhotra S, Preet K, Tomar A, Rawat S, Singh S, Singh I, Varte LR, Chatterjee T, Pal MS, Sarkar S. Polygenic study of endurance-associated genetic markers ACE I/D, ACTN3 Arg(R)577Ter(X), CKMM A/G NcoI and eNOS Glu(G)298Asp(T) in male Gorkha soldiers. SPORTS MEDICINE-OPEN 2017; 3:17. [PMID: 28444615 PMCID: PMC5405041 DOI: 10.1186/s40798-017-0085-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 04/14/2017] [Indexed: 12/13/2022]
Abstract
Background Gorkhas, a sub-mountainous population of the Himalayan region, are known for strength and bravery. In the present study when “Gorkha” is used without brackets, we are mentioning Gorkhas of Tibeto-Burman origin. Physical capability, strength and endurance are important components of fitness associated with genetic traits. The aim of this study was to examine the endurance potential of male Gorkha soldiers, based on endurance-related genetic markers ACE I/D, ACTN3 Arg (R)577Ter(X), CKMM A/G NcoI and eNOS Glu(G)298Asp(T). Methods Genotypic and allelic frequencies were determined in 374 male Gorkha soldiers (Tibeto-Burman). These frequencies were compared with frequencies obtained from Gorkha (Indo-Aryan), high-altitude natives (Tibeto-Burman) and Indian lowlanders (Indo-Aryan). “Total genotype score” (TGS) was calculated from accumulated combination of polymorphisms with maximum value “100” for theoretically “optimal” polygenic score. Probability of occurrence of “optimal” endurance profile was also determined. Results ACE II genotypic frequency was highest in Tamangs followed by Gurungs, Rais, Limbus and Magars. No statistical difference in genotypic and allelic frequency of ACTN3 Arg(R)577Ter(X) was noted within the groups. Rais showed the highest CKMM A allele frequency (0.908) compared to other Gorkha (Tibeto-Burman) groups. Limbus and Tamangs showed the highest eNOS G allele frequency (0.938 and 0.915, respectively) compared to that of other groups. Probability of male Gorkha soldiers possessing a theoretically optimal polygenic endurance profile for four candidate polymorphisms was ~3.35% (1 in 30). Four percent of the population of male Gorkha soldiers (15 in 374) exhibited an optimal TGS 100, and 16% exhibited TGS 87 for endurance compared to male Indian soldiers belonging to the lowland (Indo-Aryan) and Gorkha (Indo-Aryan) populations suggesting an overall more “favourable” polygenic profile in the male Gorkha soldier (Tibeto-Burman) population. Conclusions This study presents evidence of higher frequency of endurance-associated genes in the Gorkhas implying thereby that such genetically endowed individuals from the population may be selected and trained for achieving excellence in endurance-related elite sports activities. Electronic supplementary material The online version of this article (doi:10.1186/s40798-017-0085-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Seema Malhotra
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - Kiran Preet
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - Arvind Tomar
- Defence Research and Development Establishment (DRDE). Ministry of Defence, Government of India, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India
| | - Shweta Rawat
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - Sayar Singh
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - Inderjeet Singh
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - L Robert Varte
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - Tirthankar Chatterjee
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - M S Pal
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India
| | - Soma Sarkar
- Defence Institute of Physiology and Allied Sciences (DIPAS), Ministry of Defence. Government of India, Lucknow Road, Delhi, 110054, India.
| |
Collapse
|
124
|
Macnamara BN, Moreau D, Hambrick DZ. The Relationship Between Deliberate Practice and Performance in Sports: A Meta-Analysis. PERSPECTIVES ON PSYCHOLOGICAL SCIENCE 2017; 11:333-50. [PMID: 27217246 DOI: 10.1177/1745691616635591] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Why are some people more skilled in complex domains than other people? According to one prominent view, individual differences in performance largely reflect individual differences in accumulated amount of deliberate practice. Here, we investigated the relationship between deliberate practice and performance in sports. Overall, deliberate practice accounted for 18% of the variance in sports performance. However, the contribution differed depending on skill level. Most important, deliberate practice accounted for only 1% of the variance in performance among elite-level performers. This finding is inconsistent with the claim that deliberate practice accounts for performance differences even among elite performers. Another major finding was that athletes who reached a high level of skill did not begin their sport earlier in childhood than lower skill athletes. This finding challenges the notion that higher skill performers tend to start in a sport at a younger age than lower skill performers. We conclude that to understand the underpinnings of expertise, researchers must investigate contributions of a broad range of factors, taking into account findings from diverse subdisciplines of psychology (e.g., cognitive psychology, personality psychology) and interdisciplinary areas of research (e.g., sports science).
Collapse
Affiliation(s)
| | - David Moreau
- Centre for Brain Research, University of Auckland
| | | |
Collapse
|
125
|
Population Muscle Strength Predicts Olympic Medal Tallies: Evidence from 20 Countries in the PURE Prospective Cohort Study. PLoS One 2017; 12:e0169821. [PMID: 28107362 PMCID: PMC5249146 DOI: 10.1371/journal.pone.0169821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 12/22/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND National sporting achievement at the Olympic Games is important for national pride and prestige, and to promote participation in sport. Summer Olympic Games medal tallies have been associated with national wealth, and also social development and healthcare expenditure. It is uncertain however, how these socioeconomic factors translate into Olympic success. The objective of this study was therefore to examine the relationship between population muscle strength and Olympic medal tallies. METHODS AND RESULTS This study of handgrip strength represents a cross-sectional analysis of the Prospective Urban Rural Epidemiology (PURE) study, which is an ongoing population cohort study of individuals from high-, middle-, and low-income countries. Within participating countries, households from both urban and rural communities were invited to participate using a sampling strategy intended to yield a sample that was representative of the community. Households were eligible if at least one member was aged 35-70 years and if they intended living at the same address for a further four years. A total of 152,610 participants from these households, located in 21 countries, were included in this analysis. Handgrip strength was measured using a Jamar dynanometer. Olympic medal tallies were made over the five most recent Summer Games. There was a significant positive association between national population grip strength (GS) and medal tally that persisted after adjustment for sex, age, height, average daily caloric intake and GDP (total and per capita). For every 1kg increase in population GS, the medal tally increased by 36% (95% CI 13-65%, p = 0.001) after adjustment. Among countries that won at least one medal over the four most recent Summer Olympic Games, there was a close linear relationship between adjusted GS and the natural logarithm of the per capita medal tally (adjusted r = 0.74, p = 0.002). CONCLUSIONS Population muscle strength may be an important determinant of Summer Olympic Games medal success. Further research is needed to understand whether population muscle strength is modifiable, and whether this can improve Olympic medal success. Extreme outcomes may reflect the average attributes of the population from which the individual experiencing the extreme outcome is drawn.
Collapse
|
126
|
Phillips BE, Kelly BM, Lilja M, Ponce-González JG, Brogan RJ, Morris DL, Gustafsson T, Kraus WE, Atherton PJ, Vollaard NBJ, Rooyackers O, Timmons JA. A Practical and Time-Efficient High-Intensity Interval Training Program Modifies Cardio-Metabolic Risk Factors in Adults with Risk Factors for Type II Diabetes. Front Endocrinol (Lausanne) 2017; 8:229. [PMID: 28943861 PMCID: PMC5596071 DOI: 10.3389/fendo.2017.00229] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 08/22/2017] [Indexed: 02/04/2023] Open
Abstract
INTRODUCTION Regular physical activity (PA) can reduce the risk of developing type 2 diabetes, but adherence to time-orientated (150 min week-1 or more) PA guidelines is very poor. A practical and time-efficient PA regime that was equally efficacious at controlling risk factors for cardio-metabolic disease is one solution to this problem. Herein, we evaluate a new time-efficient and genuinely practical high-intensity interval training (HIT) protocol in men and women with pre-existing risk factors for type 2 diabetes. MATERIALS AND METHODS One hundred eighty-nine sedentary women (n = 101) and men (n = 88) with impaired glucose tolerance and/or a body mass index >27 kg m-2 [mean (range) age: 36 (18-53) years] participated in this multi-center study. Each completed a fully supervised 6-week HIT protocol at work-loads equivalent to ~100 or ~125% [Formula: see text]. Change in [Formula: see text] was used to monitor protocol efficacy, while Actiheart™ monitors were used to determine PA during four, weeklong, periods. Mean arterial (blood) pressure (MAP) and fasting insulin resistance [homeostatic model assessment (HOMA)-IR] represent key health biomarker outcomes. RESULTS The higher intensity bouts (~125% [Formula: see text]) used during a 5-by-1 min HIT protocol resulted in a robust increase in [Formula: see text] (136 participants, +10.0%, p < 0.001; large size effect). 5-by-1 HIT reduced MAP (~3%; p < 0.001) and HOMA-IR (~16%; p < 0.01). Physiological responses were similar in men and women while a sizeable proportion of the training-induced changes in [Formula: see text], MAP, and HOMA-IR was retained 3 weeks after cessation of training. The supervised HIT sessions accounted for the entire quantifiable increase in PA, and this equated to 400 metabolic equivalent (MET) min week-1. Meta-analysis indicated that 5-by-1 HIT matched the efficacy and variability of a time-consuming 30-week PA program on [Formula: see text], MAP, and HOMA-IR. CONCLUSION With a total time-commitment of <15 min per session and reliance on a practical ergometer protocol, 5-by-1 HIT offers a new solution to modulate cardio-metabolic risk factors in adults with pre-existing risk factors for type 2 diabetes while approximately meeting the MET min week-1 PA guidelines. Long-term randomized controlled studies will be required to quantify the ability for 5-by-1 HIT to reduce the incidence of type 2 diabetes, while strategies are required to harmonize the adaptations to exercise across individuals.
Collapse
Affiliation(s)
- Bethan E. Phillips
- Clinical, Metabolic and Molecular Physiology Research Group, School of Medicine, University of Nottingham, Derby, United Kingdom
| | | | - Mats Lilja
- Department of Laboratory Medicine, Karolinska University Hospital, Stockholm, Sweden
| | | | - Robert J. Brogan
- Scion House, Stirling University Innovation Park, Stirling, United Kingdom
| | - David L. Morris
- Division of Genetics and Molecular Medicine, King’s College London, London, United Kingdom
| | - Thomas Gustafsson
- Department of Laboratory Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - William E. Kraus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, United States
| | - Philip J. Atherton
- Clinical, Metabolic and Molecular Physiology Research Group, School of Medicine, University of Nottingham, Derby, United Kingdom
| | - Niels B. J. Vollaard
- Faculty of Health Sciences and Sport, University of Stirling, Stirling, United Kingdom
| | - Olav Rooyackers
- CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - James A. Timmons
- Scion House, Stirling University Innovation Park, Stirling, United Kingdom
- Division of Genetics and Molecular Medicine, King’s College London, London, United Kingdom
- *Correspondence: James A. Timmons,
| |
Collapse
|
127
|
Bonafiglia JT, Rotundo MP, Whittall JP, Scribbans TD, Graham RB, Gurd BJ. Inter-Individual Variability in the Adaptive Responses to Endurance and Sprint Interval Training: A Randomized Crossover Study. PLoS One 2016; 11:e0167790. [PMID: 27936084 PMCID: PMC5147982 DOI: 10.1371/journal.pone.0167790] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 11/20/2016] [Indexed: 01/24/2023] Open
Abstract
The current study examined the adaptive response to both endurance (END) and sprint interval training (SIT) in a group of twenty-one recreationally active adults. All participants completed three weeks (four days/ week) of both END (30 minutes at ~65% VO2peak work rate (WR) and SIT (eight, 20-second intervals at ~170% VO2peak WR separated by 10 seconds of active rest) following a randomized crossover study design with a three-month washout period between training interventions. While a main effect of training was observed for VO2peak, lactate threshold, and submaximal heart rate (HR), considerable variability was observed in the individual responses to both END and SIT. No significant positive relationships were observed between END and SIT for individual changes in any variable. Non-responses were determined using two times the typical error (TE) of measurement for VO2peak (0.107 L/min), lactate threshold (15.7 W), and submaximal HR (10.7bpm). Non-responders in VO2peak, lactate threshold, and submaximal HR were observed following both END and SIT, however, the individual patterns of response differed following END and SIT. Interestingly, all individuals responded in at least one variable when exposed to both END and SIT. These results suggest that the individual response to exercise training is highly variable following different training protocols and that the incidence of non-response to exercise training may be reduced by changing the training stimulus for non-responders to three weeks of END or SIT.
Collapse
Affiliation(s)
- Jacob T. Bonafiglia
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| | - Mario P. Rotundo
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| | - Jonathan P. Whittall
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| | - Trisha D. Scribbans
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| | - Ryan B. Graham
- School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Brendon J. Gurd
- School of Kinesiology and Health Studies, Queen’s University, Kingston, Ontario, Canada
| |
Collapse
|
128
|
Letter to the editor: A genetic-based algorithm for personalized resistance training. Biol Sport 2016; 34:31-33. [PMID: 28416894 PMCID: PMC5377557 DOI: 10.5114/biolsport.2017.63385] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 09/04/2016] [Indexed: 12/18/2022] Open
Abstract
In a recent paper entitled “A genetic-based algorithm for personalized resistance training”, Jones et al. [1] presented an algorithm of 15 performance-associated gene polymorphisms that they propose can determine an athlete’s training response by predicting power and endurance potential. However, from the design of their studies and the data provided, there is no evidence to support these authors’ assertions. Progress towards such a significant development in the field of sport and exercise genomics will require a paradigm shift in line with recent recommendations for international collaborations such as the Athlome Project (see www.athlomeconsortium.org). Large-scale initiatives, involving numerous multi-centre and well-phenotyped exercise training and elite performance cohorts, will be necessary before attempting to derive and replicate training and/or performance algorithms.
Collapse
|
129
|
Coffey VG, Hawley JA. Concurrent exercise training: do opposites distract? J Physiol 2016; 595:2883-2896. [PMID: 27506998 DOI: 10.1113/jp272270] [Citation(s) in RCA: 164] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/05/2016] [Indexed: 12/19/2022] Open
Abstract
Specificity is a core principle of exercise training to promote the desired adaptations for maximising athletic performance. The principle of specificity of adaptation is underpinned by the volume, intensity, frequency and mode of contractile activity and is most evident when contrasting the divergent phenotypes that result after undertaking either prolonged endurance or resistance training. The molecular profiles that generate the adaptive response to different exercise modes have undergone intense scientific scrutiny. Given divergent exercise induces similar signalling and gene expression profiles in skeletal muscle of untrained or recreationally active individuals, what is currently unclear is how the specificity of the molecular response is modified by prior training history. The time course of adaptation and when 'phenotype specificity' occurs has important implications for exercise prescription. This context is essential when attempting to concomitantly develop resistance to fatigue (through endurance-based exercise) and increased muscle mass (through resistance-based exercise), typically termed 'concurrent training'. Chronic training studies provide robust evidence that endurance exercise can attenuate muscle hypertrophy and strength but the mechanistic underpinning of this 'interference' effect with concurrent training is unknown. Moreover, despite the potential for several key regulators of muscle metabolism to explain an incompatibility in adaptation between endurance and resistance exercise, it now seems likely that multiple integrated, rather than isolated, effectors or processes generate the interference effect. Here we review studies of the molecular responses in skeletal muscle and evidence for the interference effect with concurrent training within the context of the specificity of training adaptation.
Collapse
Affiliation(s)
- Vernon G Coffey
- Bond Institute of Health & Sport and Faculty of Health Sciences & Medicine, Bond University, Gold Coast, Queensland, 4226, Australia
| | - John A Hawley
- Centre for Exercise and Nutrition, Mary MacKillop Institute for Health Research, Australian Catholic University, Fitzroy, Melbourne, Victoria, 3065, Australia.,Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| |
Collapse
|
130
|
Lindholm ME, Giacomello S, Werne Solnestam B, Fischer H, Huss M, Kjellqvist S, Sundberg CJ. The Impact of Endurance Training on Human Skeletal Muscle Memory, Global Isoform Expression and Novel Transcripts. PLoS Genet 2016; 12:e1006294. [PMID: 27657503 PMCID: PMC5033478 DOI: 10.1371/journal.pgen.1006294] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 08/10/2016] [Indexed: 01/02/2023] Open
Abstract
Regularly performed endurance training has many beneficial effects on health and skeletal muscle function, and can be used to prevent and treat common diseases e.g. cardiovascular disease, type II diabetes and obesity. The molecular adaptation mechanisms regulating these effects are incompletely understood. To date, global transcriptome changes in skeletal muscles have been studied at the gene level only. Therefore, global isoform expression changes following exercise training in humans are unknown. Also, the effects of repeated interventions on transcriptional memory or training response have not been studied before. In this study, 23 individuals trained one leg for three months. Nine months later, 12 of the same subjects trained both legs in a second training period. Skeletal muscle biopsies were obtained from both legs before and after both training periods. RNA sequencing analysis of all 119 skeletal muscle biopsies showed that training altered the expression of 3,404 gene isoforms, mainly associated with oxidative ATP production. Fifty-four genes had isoforms that changed in opposite directions. Training altered expression of 34 novel transcripts, all with protein-coding potential. After nine months of detraining, no training-induced transcriptome differences were detected between the previously trained and untrained legs. Although there were several differences in the physiological and transcriptional responses to repeated training, no coherent evidence of an endurance training induced transcriptional skeletal muscle memory was found. This human lifestyle intervention induced differential expression of thousands of isoforms and several transcripts from unannotated regions of the genome. It is likely that the observed isoform expression changes reflect adaptational mechanisms and processes that provide the functional and health benefits of regular physical activity. Skeletal muscle is the most abundant tissue of the healthy human body. It is also highly adaptable to different environmental stimuli, e.g. regular exercise. Exercise training improves overall health and muscle function, and can be used to prevent and treat several common diseases e.g. cardiovascular disease and type II diabetes. Therefore, it is of great importance to understand the molecular mechanisms behind adaptation processes in human skeletal muscle. In this study, we show that different expression variants from the same gene can be regulated in different directions with training, implicating alternative protein functions from one single gene. Such findings are emblematic of the complex mechanisms regulating the effects of training. We also find that training changes the activity of functionally unknown parts of the genome, with the potential for new proteins involved in the health-enhancing effects of exercise. Additionally, our results challenge the belief of a skeletal muscle memory, where previous training can affect the response to a subsequent training period. Overall, we provide understanding of the skeletal muscle biology and novel insights into the mechanisms behind the massive benefits of regular exercise on the human skeletal muscle transcriptome, inspiring further studies for deeper investigation.
Collapse
Affiliation(s)
- Maléne E Lindholm
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (MEL); (CJS)
| | - Stefania Giacomello
- Science for Life Laboratory, School of Biotechnology, Royal Institute of Technology (KTH), Solna, Sweden
| | - Beata Werne Solnestam
- Science for Life Laboratory, School of Biotechnology, Royal Institute of Technology (KTH), Solna, Sweden
| | - Helene Fischer
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Huss
- Science for Life Laboratory, School of Biotechnology, Royal Institute of Technology (KTH), Solna, Sweden
| | - Sanela Kjellqvist
- Science for Life Laboratory, School of Biotechnology, Royal Institute of Technology (KTH), Solna, Sweden
| | - Carl Johan Sundberg
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
- * E-mail: (MEL); (CJS)
| |
Collapse
|
131
|
Camera DM, Smiles WJ, Hawley JA. Exercise-induced skeletal muscle signaling pathways and human athletic performance. Free Radic Biol Med 2016; 98:131-143. [PMID: 26876650 DOI: 10.1016/j.freeradbiomed.2016.02.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/28/2016] [Accepted: 02/03/2016] [Indexed: 12/18/2022]
Abstract
Skeletal muscle is a highly malleable tissue capable of altering its phenotype in response to external stimuli including exercise. This response is determined by the mode, (endurance- versus resistance-based), volume, intensity and frequency of exercise performed with the magnitude of this response-adaptation the basis for enhanced physical work capacity. However, training-induced adaptations in skeletal muscle are variable and unpredictable between individuals. With the recent application of molecular techniques to exercise biology, there has been a greater understanding of the multiplicity and complexity of cellular networks involved in exercise responses. This review summarizes the molecular and cellular events mediating adaptation processes in skeletal muscle in response to exercise. We discuss established and novel cell signaling proteins mediating key physiological responses associated with enhanced exercise performance and the capacity for reactive oxygen and nitrogen species to modulate training adaptation responses. We also examine the molecular bases underpinning heterogeneous responses to resistance and endurance exercise and the dissociation between molecular 'markers' of training adaptation and subsequent exercise performance.
Collapse
Affiliation(s)
- Donny M Camera
- Centre for Exercise and Nutrition, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Vic. 3065, Australia
| | - William J Smiles
- Centre for Exercise and Nutrition, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Vic. 3065, Australia
| | - John A Hawley
- Centre for Exercise and Nutrition, Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, Vic. 3065, Australia; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom.
| |
Collapse
|
132
|
Nakhuda A, Josse AR, Gburcik V, Crossland H, Raymond F, Metairon S, Good L, Atherton PJ, Phillips SM, Timmons JA. Biomarkers of browning of white adipose tissue and their regulation during exercise- and diet-induced weight loss. Am J Clin Nutr 2016; 104:557-65. [PMID: 27488235 PMCID: PMC4997298 DOI: 10.3945/ajcn.116.132563] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 06/09/2016] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND A hypothesis exists whereby an exercise- or dietary-induced negative energy balance reduces human subcutaneous white adipose tissue (scWAT) mass through the formation of brown-like adipocyte (brite) cells. However, the validity of biomarkers of brite formation has not been robustly evaluated in humans, and clinical data that link brite formation and weight loss are sparse. OBJECTIVES We used rosiglitazone and primary adipocytes to stringently evaluate a set of biomarkers for brite formation and determined whether the expression of biomarker genes in scWAT could explain the change in body composition in response to exercise training combined with calorie restriction in obese and overweight women (n = 79). DESIGN Gene expression was derived from exon DNA microarrays and preadipocytes from obesity-resistant and -sensitive mice treated with rosiglitazone to generate candidate brite biomarkers from a microarray. These biomarkers were evaluated against data derived from scWAT RNA from obese and overweight women before and after supervised exercise 5 d/wk for 16 wk combined with modest calorie restriction (∼0.84 MJ/d). RESULTS Forty percent of commonly used brite gene biomarkers exhibited an exon or strain-specific regulation. No biomarkers were positively related to weight loss in human scWAT. Greater weight loss was significantly associated with less uncoupling protein 1 expression (P = 0.006, R(2) = 0.09). In a follow-up global analysis, there were 161 genes that covaried with weight loss that were linked to greater CCAAT/enhancer binding protein α activity (z = 2.0, P = 6.6 × 10(-7)), liver X receptor α/β agonism (z = 2.1, P = 2.8 × 10(-7)), and inhibition of leptin-like signaling (z = -2.6, P = 3.9 × 10(-5)). CONCLUSION We identify a subset of robust RNA biomarkers for brite formation and show that calorie-restriction-mediated weight loss in women dynamically remodels scWAT to take on a more-white rather than a more-brown adipocyte phenotype.
Collapse
Affiliation(s)
- Asif Nakhuda
- School of Medicine, Derby Royal Hospital, University of Nottingham, Nottingham, United Kingdom
| | - Andrea R Josse
- Department of Kinesiology, Brock University, St. Catharines, Canada
| | | | - Hannah Crossland
- Division of Genetics and Molecular Medicine, King's College London, London, United Kingdom
| | - Frederic Raymond
- Functional Genomics, Nestle Institute of Health Sciences, Lausanne, Switzerland; and
| | - Sylviane Metairon
- Functional Genomics, Nestle Institute of Health Sciences, Lausanne, Switzerland; and
| | - Liam Good
- Royal Veterinary College, London, United Kingdom
| | - Philip J Atherton
- School of Medicine, Derby Royal Hospital, University of Nottingham, Nottingham, United Kingdom
| | - Stuart M Phillips
- Exercise Metabolism Research Group, McMaster University, Hamilton, Canada
| | - James A Timmons
- Division of Genetics and Molecular Medicine, King's College London, London, United Kingdom;
| |
Collapse
|
133
|
Metcalfe RS, Tardif N, Thompson D, Vollaard NBJ. Changes in aerobic capacity and glycaemic control in response to reduced-exertion high-intensity interval training (REHIT) are not different between sedentary men and women. Appl Physiol Nutr Metab 2016; 41:1117-1123. [PMID: 27753506 DOI: 10.1139/apnm-2016-0253] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Previously it has been reported that reduced-exertion high-intensity interval training (REHIT; total training time of 3 × 10 min per week) improves maximal aerobic capacity in both sedentary men and women, but improves insulin sensitivity in men only. The aim of the present study was to determine whether there is a true sex difference in response to REHIT, or that these findings can be explained by the large interindividual variability in response inherent to all exercise training. Thirty-five sedentary participants (18 women; mean ± SD age for men and women, respectively: age, 33 ± 9 and 36 ± 9 years; body mass index, 25.1 ± 2.1 and 24.1 ± 3.5 kg·m-2; maximal aerobic capacity, 38.6 ± 8.3 and 31.6 ± 4.6 mL·kg-1·min-1) completed a 6-week REHIT programme consisting of eighteen 10-min unloaded cycling sessions with 1 (first session) or 2 (all other sessions) "all-out" 10-20-s sprints against a resistance of 5% of body mass. Maximal aerobic capacity and oral glucose tolerance test-derived insulin sensitivity were determined before and after training. REHIT was associated with an increase in maximal aerobic capacity (2.54 ± 0.65 vs. 2.78 ± 0.68 L·min-1, main effect of time: p < 0.01), a trend toward reduced plasma insulin area-under-the-curve (AUC; 6.7 ± 4.8 vs. 6.1 ± 4.0 IU·min-1·mL-1, p = 0.096), but no significant change in plasma glucose AUC or the Cederholm index of insulin sensitivity. Substantial interindividual variability in response to REHIT was observed for all variables, but there was no significant effect of sex. In conclusion, REHIT improves the key health marker of aerobic capacity within a minimal total training time-commitment. There is large interindividual variability in responses to REHIT, but sex differences in the responses are not apparent.
Collapse
Affiliation(s)
- Richard S Metcalfe
- a Department for Health, University of Bath, Bath BA2 7AY, UK.,b School of Sport, Ulster University, Northern Ireland, UK
| | - Nicolas Tardif
- c Department of Clinical Sciences, Intervention and Technology (CLINTEC), Karolinska Institutet, Karolinska University Hospital, Stockholm 141 52, Sweden
| | - Dylan Thompson
- a Department for Health, University of Bath, Bath BA2 7AY, UK
| | | |
Collapse
|
134
|
Bamman MM, Wick TM, Carmona-Moran CA, Bridges SL. Exercise Medicine for Osteoarthritis: Research Strategies to Maximize Effectiveness. Arthritis Care Res (Hoboken) 2016; 68:288-91. [PMID: 26239196 DOI: 10.1002/acr.22680] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 07/16/2015] [Accepted: 07/21/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Marcas M Bamman
- University of Alabama at Birmingham Center for Exercise Medicine and Comprehensive Arthritis, Musculoskeletal, Bone, and Autoimmunity Center, and Birmingham VA Medical Center
| | - Timothy M Wick
- University of Alabama at Birmingham Center for Exercise Medicine, BioMatrix Engineering and Regenerative Medicine Center, and Comprehensive Arthritis, Musculoskeletal, Bone, and Autoimmunity Center, Birmingham
| | | | - S Louis Bridges
- University of Alabama at Birmingham Center for Exercise Medicine, BioMatrix Engineering and Regenerative Medicine Center, and Comprehensive Arthritis, Musculoskeletal, Bone, and Autoimmunity Center, Birmingham
| |
Collapse
|
135
|
Viña J, Rodriguez-Mañas L, Salvador-Pascual A, Tarazona-Santabalbina FJ, Gomez-Cabrera MC. Exercise: the lifelong supplement for healthy ageing and slowing down the onset of frailty. J Physiol 2016; 594:1989-99. [PMID: 26872560 PMCID: PMC4933124 DOI: 10.1113/jp270536] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 12/14/2015] [Indexed: 12/30/2022] Open
Abstract
The beneficial effects of exercise have been well recognized for over half a century. Dr Jeremy Morris's pioneering studies in the fifties showed a striking difference in cardiovascular disease between the drivers and conductors on the double-decker buses in London. These studies sparked off a vast amount of research on the effects of exercise in health, and the general consensus is that exercise contributes to improved outcomes and treatment for several diseases including osteoporosis, diabetes, depression and atherosclerosis. Evidence of the beneficial effects of exercise is reviewed here. One way of highlighting the impact of exercise on disease is to consider it from the perspective of good practice. However, the intensity, duration, frequency (dosage) and counter indications of the exercise should be taken into consideration to individually tailor the exercise programme. An important case of the beneficial effect of exercise is that of ageing. Ageing is characterized by a loss of homeostatic mechanisms, on many occasions leading to the development of frailty, and hence frailty is one of the major geriatric syndromes and exercise is very useful to mitigate, or at least delay, it. Since exercise is so effective in reducing frailty, we would like to propose that exercise be considered as a supplement to other treatments. People all over the world have been taking nutritional supplements in the hopes of improving their health. We would like to think of exercise as a physiological supplement not only for treating diseases, but also for improving healthy ageing.
Collapse
Affiliation(s)
- Jose Viña
- Department of Physiology, University of Valencia, Fundacion Investigacion Hospital Clinico Universitario/INCLIVA, Spain
| | - Leocadio Rodriguez-Mañas
- Red Temática de Investigación Cooperativa en Envejecimiento y Fragilidad (RETICEF), Instituto de Salud Carlos III, Servicio de Geriatría, Hospital Universitario de Getafe, Ministerio de Sanidad y Consumo, Madrid, España
| | - Andrea Salvador-Pascual
- Department of Physiology, University of Valencia, Fundacion Investigacion Hospital Clinico Universitario/INCLIVA, Spain
| | | | - Mari Carmen Gomez-Cabrera
- Department of Physiology, University of Valencia, Fundacion Investigacion Hospital Clinico Universitario/INCLIVA, Spain
| |
Collapse
|
136
|
Dunne DFJ, Jack S, Jones RP, Jones L, Lythgoe DT, Malik HZ, Poston GJ, Palmer DH, Fenwick SW. Randomized clinical trial of prehabilitation before planned liver resection. Br J Surg 2016; 103:504-12. [PMID: 26864728 DOI: 10.1002/bjs.10096] [Citation(s) in RCA: 198] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 11/21/2015] [Accepted: 12/01/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Patients with low fitness as assessed by cardiopulmonary exercise testing (CPET) have higher mortality and morbidity after surgery. Preoperative exercise intervention, or prehabilitation, has been suggested as a method to improve CPET values and outcomes. This trial sought to assess the capacity of a 4-week supervised exercise programme to improve fitness before liver resection for colorectal liver metastasis. METHODS This was a randomized clinical trial assessing the effect of a 4-week (12 sessions) high-intensity cycle, interval training programme in patients undergoing elective liver resection for colorectal liver metastases. The primary endpoint was oxygen uptake at the anaerobic threshold. Secondary endpoints included other CPET values and preoperative quality of life (QoL) assessed using the SF-36®. RESULTS Thirty-eight patients were randomized (20 to prehabilitation, 18 to standard care), and 35 (25 men and 10 women) completed both preoperative assessments and were analysed. The median age was 62 (i.q.r. 54-69) years, and there were no differences in baseline characteristics between the two groups. Prehabilitation led to improvements in preoperative oxygen uptake at anaerobic threshold (+1·5 (95 per cent c.i. 0·2 to 2·9) ml per kg per min) and peak exercise (+2·0 (0·0 to 4·0) ml per kg per min). The oxygen pulse (oxygen uptake per heart beat) at the anaerobic threshold improved (+0·9 (0·0 to 1·8) ml/beat), and a higher peak work rate (+13 (4 to 22) W) was achieved. This was associated with improved preoperative QoL, with the overall SF-36® score increasing by 11 (95 per cent c.i. 1 to 21) (P = 0·028) and the overall SF-36® mental health score by 11 (1 to 22) (P = 0·037). CONCLUSION A 4-week prehabilitation programme can deliver improvements in CPET scores and QoL before liver resection. This may impact on perioperative outcome. REGISTRATION NUMBER NCT01523353 (https://clinicaltrials.gov).
Collapse
Affiliation(s)
- D F J Dunne
- Liverpool Hepatobiliary Centre, Aintree University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - S Jack
- National Institute for Health Research Respiratory Biomedical Research Unit, University Hospital Southampton, Southampton, UK
| | - R P Jones
- Liverpool Hepatobiliary Centre, Aintree University Hospital, Liverpool, UK
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - L Jones
- Liverpool Hepatobiliary Centre, Aintree University Hospital, Liverpool, UK
| | - D T Lythgoe
- Cancer Research UK, Liverpool Cancer Trials Unit, Liverpool, UK
| | - H Z Malik
- Liverpool Hepatobiliary Centre, Aintree University Hospital, Liverpool, UK
| | - G J Poston
- Liverpool Hepatobiliary Centre, Aintree University Hospital, Liverpool, UK
| | - D H Palmer
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
- Clatterbridge Cancer Centre, Wirral, UK
| | - S W Fenwick
- Liverpool Hepatobiliary Centre, Aintree University Hospital, Liverpool, UK
| |
Collapse
|
137
|
Husak JF, Ferguson HA, Lovern MB. Trade‐offs among locomotor performance, reproduction and immunity in lizards. Funct Ecol 2016. [DOI: 10.1111/1365-2435.12653] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jerry F. Husak
- Department of Biology University of St. Thomas St. Paul Minnesota 55105 USA
| | - Haley A. Ferguson
- Department of Biology University of St. Thomas St. Paul Minnesota 55105 USA
| | - Matthew B. Lovern
- Department of Integrative Biology Oklahoma State University Stillwater Oklahoma 74078 USA
| |
Collapse
|
138
|
Yoo J, Kim BH, Kim SH, Kim Y, Yim SV. Genetic polymorphisms to predict gains in maximal O2 uptake and knee peak torque after a high intensity training program in humans. Eur J Appl Physiol 2016; 116:947-57. [PMID: 27001664 DOI: 10.1007/s00421-016-3353-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 02/27/2016] [Indexed: 02/04/2023]
Abstract
PURPOSE The study aimed to identify single nucleotide polymorphisms (SNPs) that significantly influenced the level of improvement of two kinds of training responses, including maximal O2 uptake (V'O2max) and knee peak torque of healthy adults participating in the high intensity training (HIT) program. The study also aimed to use these SNPs to develop prediction models for individual training responses. METHODS 79 Healthy volunteers participated in the HIT program. A genome-wide association study, based on 2,391,739 SNPs, was performed to identify SNPs that were significantly associated with gains in V'O2max and knee peak torque, following 9 weeks of the HIT program. To predict two training responses, two independent SNPs sets were determined using linear regression and iterative binary logistic regression analysis. False discovery rate analysis and permutation tests were performed to avoid false-positive findings. RESULTS To predict gains in V'O2max, 7 SNPs were identified. These SNPs accounted for 26.0 % of the variance in the increment of V'O2max, and discriminated the subjects into three subgroups, non-responders, medium responders, and high responders, with prediction accuracy of 86.1 %. For the knee peak torque, 6 SNPs were identified, and accounted for 27.5 % of the variance in the increment of knee peak torque. The prediction accuracy discriminating the subjects into the three subgroups was estimated as 77.2 %. CONCLUSIONS Novel SNPs found in this study could explain, and predict inter-individual variability in gains of V'O2max, and knee peak torque. Furthermore, with these genetic markers, a methodology suggested in this study provides a sound approach for the personalized training program.
Collapse
Affiliation(s)
- Jinho Yoo
- Bio-Age Medical Research Institute, Bio-Age Inc., Seoul, Republic of Korea
| | - Bo-Hyung Kim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University College of Medicine and Hospital, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 130-872, Republic of Korea
| | - Soo-Hwan Kim
- Bio-Age Medical Research Institute, Bio-Age Inc., Seoul, Republic of Korea
| | - Yangseok Kim
- Bio-Age Medical Research Institute, Bio-Age Inc., Seoul, Republic of Korea.,College of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Vin Yim
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University College of Medicine and Hospital, 23 Kyungheedae-ro, Dongdaemun-gu, Seoul, 130-872, Republic of Korea.
| |
Collapse
|
139
|
Grossman JAC, Payne EK. A randomized comparison study regarding the impact of short-duration, high-intensity exercise and traditional exercise on anthropometric and body composition measurement changes in post-menopausal women--A pilot study. Post Reprod Health 2016; 22:14-19. [PMID: 26748079 DOI: 10.1177/2053369115623899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND The mode and duration of exercise necessary to change body composition and reduce weight remains debatable. Menopause results in hormonal changes that preclude weight loss. This randomized pilot study compared the effects of short-duration, high-intensity interval training and traditional exercise on anthropometric and body composition measurement changes in post-menopausal women. OBJECTIVE To compare the effects of short-duration, high-intensity interval training and traditional methods of exercise (walking) on anthropometric, body composition and body weight change over a 12-week period. MAIN OUTCOME MEASURES Subjects (N = 18) were post-menopausal, sedentary female volunteers, randomly assigned into one of two exercise groups. Both groups exercised five out of seven days for 12 weeks. The resistance group (n = 8) (54.3 ± 7.3 years; BMI = 28.0 ± 2.1 kg/m(2); mean ± SD) exercised for 15.0 ± 3.5 min, which consisted of five different exercise routines including upper and lower extremity, a cardio segment, yoga and abdominal exercises. The walkers (n = 10) (56.6 ± 5.2 years; BMI = 29.2 ± 2.6 kg/m(2); mean ± SD) exercised for 40.0 ± 5.0 min at 65% of their age-predicted maximum heart rate. Relative (%) body fat was measured via DEXA scan, along with five anthropometric measurements, all of which were taken prior to and after 12 weeks. Independent sample t-tests were probed for differences, p ≤ 0.05. RESULTS No statistically significant changes were determined between the groups for pre-and post-measurements. CONCLUSIONS The outcomes of this study provide a foundation for future comparisons of short-duration high-intensity interval training exercise and traditional exercise, or walking, on anthropometric and body composition measurement changes in sedentary, overweight, post-menopausal females over a 12-week period.
Collapse
|
140
|
Böhm A, Weigert C, Staiger H, Häring HU. Exercise and diabetes: relevance and causes for response variability. Endocrine 2016; 51:390-401. [PMID: 26643313 PMCID: PMC4762932 DOI: 10.1007/s12020-015-0792-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 10/28/2015] [Indexed: 12/31/2022]
Abstract
Exercise as a key prevention strategy for diabetes and obesity is commonly accepted and recommended throughout the world. Unfortunately, not all individuals profit to the same extent, some exhibit exercise resistance. This phenomenon of non-response to exercise is found for several endpoints, including glucose tolerance and insulin sensitivity. Since these non-responders are of notable quantity, there is the need to understand the underlying mechanisms and to identify predictors of response. This displays the basis to develop personalized training intervention regimes. In this review, we summarize the current knowledge on response variability, with focus on human studies and improvement of glucose homeostasis as outcome.
Collapse
Affiliation(s)
- Anja Böhm
- Department of Internal Medicine IV, Division of Endocrinology, Diabetology, Angiology, Nephrology, and Clinical Chemistry, University Hospital Tübingen, Eberhard Karls University Tübingen, 72076, Tübingen, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), 85764, München-Neuherberg, Germany
| | - Cora Weigert
- Department of Internal Medicine IV, Division of Endocrinology, Diabetology, Angiology, Nephrology, and Clinical Chemistry, University Hospital Tübingen, Eberhard Karls University Tübingen, 72076, Tübingen, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), 85764, München-Neuherberg, Germany
| | - Harald Staiger
- Department of Internal Medicine IV, Division of Endocrinology, Diabetology, Angiology, Nephrology, and Clinical Chemistry, University Hospital Tübingen, Eberhard Karls University Tübingen, 72076, Tübingen, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the Eberhard Karls University Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD), 85764, München-Neuherberg, Germany
| | - Hans-Ulrich Häring
- Department of Internal Medicine IV, Division of Endocrinology, Diabetology, Angiology, Nephrology, and Clinical Chemistry, University Hospital Tübingen, Eberhard Karls University Tübingen, 72076, Tübingen, Germany.
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at the Eberhard Karls University Tübingen, Tübingen, Germany.
- German Center for Diabetes Research (DZD), 85764, München-Neuherberg, Germany.
| |
Collapse
|
141
|
Davidsen PK, Turan N, Egginton S, Falciani F. Multilevel functional genomics data integration as a tool for understanding physiology: a network biology perspective. J Appl Physiol (1985) 2016; 120:297-309. [DOI: 10.1152/japplphysiol.01110.2014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 11/04/2015] [Indexed: 01/30/2023] Open
Abstract
The overall aim of physiological research is to understand how living systems function in an integrative manner. Consequently, the discipline of physiology has since its infancy attempted to link multiple levels of biological organization. Increasingly this has involved mathematical and computational approaches, typically to model a small number of components spanning several levels of biological organization. With the advent of “omics” technologies, which can characterize the molecular state of a cell or tissue (intended as the level of expression and/or activity of its molecular components), the number of molecular components we can quantify has increased exponentially. Paradoxically, the unprecedented amount of experimental data has made it more difficult to derive conceptual models underlying essential mechanisms regulating mammalian physiology. We present an overview of state-of-the-art methods currently used to identifying biological networks underlying genomewide responses. These are based on a data-driven approach that relies on advanced computational methods designed to “learn” biology from observational data. In this review, we illustrate an application of these computational methodologies using a case study integrating an in vivo model representing the transcriptional state of hypoxic skeletal muscle with a clinical study representing muscle wasting in chronic obstructive pulmonary disease patients. The broader application of these approaches to modeling multiple levels of biological data in the context of modern physiology is discussed.
Collapse
Affiliation(s)
- Peter K. Davidsen
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Nil Turan
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom; and
| | - Stuart Egginton
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Francesco Falciani
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| |
Collapse
|
142
|
Rankinen T, Fuku N, Wolfarth B, Wang G, Sarzynski MA, Alexeev DG, Ahmetov II, Boulay MR, Cieszczyk P, Eynon N, Filipenko ML, Garton FC, Generozov EV, Govorun VM, Houweling PJ, Kawahara T, Kostryukova ES, Kulemin NA, Larin AK, Maciejewska-Karłowska A, Miyachi M, Muniesa CA, Murakami H, Ospanova EA, Padmanabhan S, Pavlenko AV, Pyankova ON, Santiago C, Sawczuk M, Scott RA, Uyba VV, Yvert T, Perusse L, Ghosh S, Rauramaa R, North KN, Lucia A, Pitsiladis Y, Bouchard C. No Evidence of a Common DNA Variant Profile Specific to World Class Endurance Athletes. PLoS One 2016; 11:e0147330. [PMID: 26824906 PMCID: PMC4732768 DOI: 10.1371/journal.pone.0147330] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 01/01/2016] [Indexed: 12/16/2022] Open
Abstract
There are strong genetic components to cardiorespiratory fitness and its response to exercise training. It would be useful to understand the differences in the genomic profile of highly trained endurance athletes of world class caliber and sedentary controls. An international consortium (GAMES) was established in order to compare elite endurance athletes and ethnicity-matched controls in a case-control study design. Genome-wide association studies were undertaken on two cohorts of elite endurance athletes and controls (GENATHLETE and Japanese endurance runners), from which a panel of 45 promising markers was identified. These markers were tested for replication in seven additional cohorts of endurance athletes and controls: from Australia, Ethiopia, Japan, Kenya, Poland, Russia and Spain. The study is based on a total of 1520 endurance athletes (835 who took part in endurance events in World Championships and/or Olympic Games) and 2760 controls. We hypothesized that world-class athletes are likely to be characterized by an even higher concentration of endurance performance alleles and we performed separate analyses on this subsample. The meta-analysis of all available studies revealed one statistically significant marker (rs558129 at GALNTL6 locus, p = 0.0002), even after correcting for multiple testing. As shown by the low heterogeneity index (I2 = 0), all eight cohorts showed the same direction of association with rs558129, even though p-values varied across the individual studies. In summary, this study did not identify a panel of genomic variants common to these elite endurance athlete groups. Since GAMES was underpowered to identify alleles with small effect sizes, some of the suggestive leads identified should be explored in expanded comparisons of world-class endurance athletes and sedentary controls and in tightly controlled exercise training studies. Such studies have the potential to illuminate the biology not only of world class endurance performance but also of compromised cardiac functions and cardiometabolic diseases.
Collapse
Affiliation(s)
- Tuomo Rankinen
- Human Genomics Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, United States of America
| | - Noriyuki Fuku
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Bernd Wolfarth
- Department of Sport Medicine Humboldt University and Charite University School of Medicine, Berlin, Germany
| | - Guan Wang
- Centre for Sport and Exercise Science and Medicine (SESAME), University of Brighton, Eastbourne, United Kingdom
| | - Mark A. Sarzynski
- Human Genomics Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, United States of America
- School of Public Health, University of South Carolina, Columbia, SC, United States of America
| | | | - Ildus I. Ahmetov
- Research Institute for Physical-Chemical Medicine, Moscow, Russia
- Sport Technology Research Centre, Volga Region State Academy of Physical Culture, Sport and Tourism, Kazan, Russia
| | - Marcel R. Boulay
- Department of Kinesiology, Laval University, Ste-Foy, Québec, Canada
| | - Pawel Cieszczyk
- University of Szczecin, Department of Physical Education and Health Promotion, Szczecin, Poland
- Academy of Physical Education and Sport, Department of Tourism and Recreation, Gdansk, Poland
| | - Nir Eynon
- Institute of Sport, Exercise and Active Living (ISEAL), Victoria University, Victoria, Australia
| | - Maxim L. Filipenko
- Pharmacogenomics Laboratory, Institute of Chemical Biology and Fundamental Medicine of SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Fleur C. Garton
- Murdoch Childrens Research Institute and Department of Paediatrics, University of Melbourne, Victoria, Australia
- Institute of Neuroscience and Muscle Research, Childrens Hospital Westmead, Westmead, Australia
| | | | - Vadim M. Govorun
- Research Institute for Physical-Chemical Medicine, Moscow, Russia
| | - Peter J. Houweling
- Pharmacogenomics Laboratory, Institute of Chemical Biology and Fundamental Medicine of SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | - Takashi Kawahara
- Department of Sports Medicine, Japan Institute of Sports Sciences, Tokyo, Japan
| | | | | | - Andrey K. Larin
- Research Institute for Physical-Chemical Medicine, Moscow, Russia
| | | | - Motohiko Miyachi
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan
| | | | - Haruka Murakami
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan
| | | | - Sandosh Padmanabhan
- College of Medicine, Veterinary & Life Sciences, Institute of Cardiovascular & Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | | | - Olga N. Pyankova
- Pharmacogenomics Laboratory, Institute of Chemical Biology and Fundamental Medicine of SB RAS, Novosibirsk, Russia
- Novosibirsk State University, Novosibirsk, Russia
| | | | - Marek Sawczuk
- University of Szczecin, Department of Physical Education and Health Promotion, Szczecin, Poland
| | - Robert A. Scott
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | | | - Thomas Yvert
- Universidad Europea and Research Institute i+12, Madrid, Spain
| | - Louis Perusse
- Department of Kinesiology, Laval University, Ste-Foy, Québec, Canada
| | - Sujoy Ghosh
- Cardiovascular & Metabolic Disorders Program, and Center for Computational Biology, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Rainer Rauramaa
- Kuopio Research Institute of Exercise Medicine, University of Eastern Finland, Kuopio, Finland
| | - Kathryn N. North
- Murdoch Childrens Research Institute and Department of Paediatrics, University of Melbourne, Victoria, Australia
- Institute of Neuroscience and Muscle Research, Childrens Hospital Westmead, Westmead, Australia
| | - Alejandro Lucia
- Universidad Europea and Research Institute i+12, Madrid, Spain
| | - Yannis Pitsiladis
- Centre for Sport and Exercise Science and Medicine (SESAME), University of Brighton, Eastbourne, United Kingdom
| | - Claude Bouchard
- Human Genomics Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, United States of America
| |
Collapse
|
143
|
Massett MP, Avila JJ, Kim SK. Exercise Capacity and Response to Training Quantitative Trait Loci in a NZW X 129S1 Intercross and Combined Cross Analysis of Inbred Mouse Strains. PLoS One 2015; 10:e0145741. [PMID: 26710100 PMCID: PMC4692404 DOI: 10.1371/journal.pone.0145741] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 12/08/2015] [Indexed: 02/06/2023] Open
Abstract
Genetic factors determining exercise capacity and the magnitude of the response to exercise training are poorly understood. The aim of this study was to identify quantitative trait loci (QTL) associated with exercise training in mice. Based on marked differences in training responses in inbred NZW (-0.65 ± 1.73 min) and 129S1 (6.18 ± 3.81 min) mice, a reciprocal intercross breeding scheme was used to generate 285 F2 mice. All F2 mice completed an exercise performance test before and after a 4-week treadmill running program, resulting in an increase in exercise capacity of 1.54 ± 3.69 min (range = -10 to +12 min). Genome-wide linkage scans were performed for pre-training, post-training, and change in run time. For pre-training exercise time, suggestive QTL were identified on Chromosomes 5 (57.4 cM, 2.5 LOD) and 6 (47.8 cM, 2.9 LOD). A significant QTL for post-training exercise capacity was identified on Chromosome 5 (43.4 cM, 4.1 LOD) and a suggestive QTL on Chromosomes 1 (55.7 cM, 2.3 LOD) and 8 (66.1 cM, 2.2 LOD). A suggestive QTL for the change in run time was identified on Chromosome 6 (37.8 cM, 2.7 LOD). To identify shared QTL, this data set was combined with data from a previous F2 cross between B6 and FVB strains. In the combined cross analysis, significant novel QTL for pre-training exercise time and change in exercise time were identified on Chromosome 12 (54.0 cM, 3.6 LOD) and Chromosome 6 (28.0 cM, 3.7 LOD), respectively. Collectively, these data suggest that combined cross analysis can be used to identify novel QTL and narrow the confidence interval of QTL for exercise capacity and responses to training. Furthermore, these data support the use of larger and more diverse mapping populations to identify the genetic basis for exercise capacity and responses to training.
Collapse
Affiliation(s)
- Michael P. Massett
- Department of Health and Kinesiology, Texas A&M University, College Station, Texas, United States of America
- * E-mail:
| | - Joshua J. Avila
- Department of Health and Kinesiology, Texas A&M University, College Station, Texas, United States of America
| | - Seung Kyum Kim
- Department of Health and Kinesiology, Texas A&M University, College Station, Texas, United States of America
| |
Collapse
|
144
|
Toedebusch RG, Ruegsegger GN, Braselton JF, Heese AJ, Hofheins JC, Childs TE, Thyfault JP, Booth FW. AMPK agonist AICAR delays the initial decline in lifetime-apex V̇o2 peak, while voluntary wheel running fails to delay its initial decline in female rats. Physiol Genomics 2015; 48:101-15. [PMID: 26578698 DOI: 10.1152/physiolgenomics.00078.2015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 11/11/2015] [Indexed: 11/22/2022] Open
Abstract
There has never been an outcome measure for human health more important than peak oxygen consumption (V̇o2 peak), yet little is known regarding the molecular triggers for its lifetime decline with aging. We examined the ability of physical activity or 5 wk of 5-aminoimidazole-4-carboxamide-1-β-d-ribofuranoside (AICAR) administration to delay the initial aging-induced decline in lifetime-apex V̇o2 peak and potential underlying molecular mechanisms. Experiment 1 consisted of female rats with (RUN) and without (NO RUN) running wheels, while experiment 2 consisted of female nonrunning rats getting the AMPK agonist AICAR (0.5 mg/g/day) subcutaneously for 5 wk beginning at 17 wk of age. All rats underwent frequent, weekly or biweekly V̇o2 peak tests beginning at 10 wk of age. In experiment 1, lifetime-apex V̇o2 peak occurred at 19 wk of age in both RUN and NO RUN and decreased thereafter. V̇o2 peak measured across experiment 1 was ∼25% higher in RUN than in NO RUN. In experiment 2, AICAR delayed the chronological age observed in experiment 1 by 1 wk, from 19 wk to 20 wk of age. RUN and NO RUN showed different skeletal muscle transcriptomic profiles both pre- and postapex. Additionally, growth and development pathways are differentially regulated between RUN and NO RUN. Angiomotin mRNA was downregulated postapex in RUN and NO RUN. Furthermore, strong significant correlations to V̇o2 peak and trends for decreased protein concentration supports angiomotin's potential importance in our model. Contrary to our primary hypothesis, wheel running was not sufficient to delay the chronological age of lifetime-apex V̇o2 peak decline, whereas AICAR delayed it 1 wk.
Collapse
Affiliation(s)
- Ryan G Toedebusch
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
| | | | - Joshua F Braselton
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - Alexander J Heese
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - John C Hofheins
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - Tom E Childs
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - John P Thyfault
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas; and
| | - Frank W Booth
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri; Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri; Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| |
Collapse
|
145
|
Steves CJ, Mehta MM, Jackson SHD, Spector TD. Kicking Back Cognitive Ageing: Leg Power Predicts Cognitive Ageing after Ten Years in Older Female Twins. Gerontology 2015; 62:138-49. [PMID: 26551663 PMCID: PMC4789972 DOI: 10.1159/000441029] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 09/11/2015] [Indexed: 11/29/2022] Open
Abstract
Background Many observational studies have shown a protective effect of physical activity on cognitive ageing, but interventional studies have been less convincing. This may be due to short time scales of interventions, suboptimal interventional regimes or lack of lasting effect. Confounding through common genetic and developmental causes is also possible. Objectives We aimed to test whether muscle fitness (measured by leg power) could predict cognitive change in a healthy older population over a 10-year time interval, how this performed alongside other predictors of cognitive ageing, and whether this effect was confounded by factors shared by twins. In addition, we investigated whether differences in leg power were predictive of differences in brain structure and function after 12 years of follow-up in identical twin pairs. Methods A total of 324 healthy female twins (average age at baseline 55, range 43-73) performed the Cambridge Neuropsychological Test Automated Battery (CANTAB) at two time points 10 years apart. Linear regression modelling was used to assess the relationships between baseline leg power, physical activity and subsequent cognitive change, adjusting comprehensively for baseline covariates (including heart disease, diabetes, blood pressure, fasting blood glucose, lipids, diet, body habitus, smoking and alcohol habits, reading IQ, socioeconomic status and birthweight). A discordant twin approach was used to adjust for factors shared by twins. A subset of monozygotic pairs then underwent magnetic resonance imaging. The relationship between muscle fitness and brain structure and function was assessed using linear regression modelling and paired t tests. Results A striking protective relationship was found between muscle fitness (leg power) and both 10-year cognitive change [fully adjusted model standardised β-coefficient (Stdβ) = 0.174, p = 0.002] and subsequent total grey matter (Stdβ = 0.362, p = 0.005). These effects were robust in discordant twin analyses, where within-pair difference in physical fitness was also predictive of within-pair difference in lateral ventricle size. There was a weak independent effect of self-reported physical activity. Conclusion Leg power predicts both cognitive ageing and global brain structure, despite controlling for common genetics and early life environment shared by twins. Interventions targeted to improve leg power in the long term may help reach a universal goal of healthy cognitive ageing.
Collapse
Affiliation(s)
- Claire J Steves
- Department of Twin Research and Genetic Epidemiology, Kings College London, London, UK
| | | | | | | |
Collapse
|
146
|
Sarzynski MA, Davidsen PK, Sung YJ, Hesselink MKC, Schrauwen P, Rice TK, Rao DC, Falciani F, Bouchard C. Genomic and transcriptomic predictors of triglyceride response to regular exercise. Br J Sports Med 2015; 49:1524-31. [PMID: 26491034 DOI: 10.1136/bjsports-2015-095179] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2015] [Indexed: 11/04/2022]
Abstract
AIM We performed genome-wide and transcriptome-wide profiling to identify genes and single nucleotide polymorphisms (SNPs) associated with the response of triglycerides (TG) to exercise training. METHODS Plasma TG levels were measured before and after a 20-week endurance training programme in 478 white participants from the HERITAGE Family Study. Illumina HumanCNV370-Quad v3.0 BeadChips were genotyped using the Illumina BeadStation 500GX platform. Affymetrix HG-U133+2 arrays were used to quantitate gene expression levels from baseline muscle biopsies of a subset of participants (N=52). Genome-wide association study (GWAS) analysis was performed using MERLIN, while transcriptomic predictor models were developed using the R-package GALGO. RESULTS The GWAS results showed that eight SNPs were associated with TG training-response (ΔTG) at p<9.9×10(-6), while another 31 SNPs showed p values <1×10(-4). In multivariate regression models, the top 10 SNPs explained 32.0% of the variance in ΔTG, while conditional heritability analysis showed that four SNPs statistically accounted for all of the heritability of ΔTG. A molecular signature based on the baseline expression of 11 genes predicted 27% of ΔTG in HERITAGE, which was validated in an independent study. A composite SNP score based on the top four SNPs, each from the genomic and transcriptomic analyses, was the strongest predictor of ΔTG (R(2)=0.14, p=3.0×10(-68)). CONCLUSIONS Our results indicate that skeletal muscle transcript abundance at 11 genes and SNPs at a number of loci contribute to TG response to exercise training. Combining data from genomics and transcriptomics analyses identified a SNP-based gene signature that should be further tested in independent samples.
Collapse
Affiliation(s)
- Mark A Sarzynski
- Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA Department of Exercise Science, University of South Carolina, Columbia, SC, USA
| | - Peter K Davidsen
- Centre for Computational Biology and Modelling, Institute for Integrative Biology, University of Liverpool, Liverpool, UK School of Immunity and Infection, University of Birmingham, Birmingham, UK
| | - Yun Ju Sung
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Matthijs K C Hesselink
- NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Patrick Schrauwen
- NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Treva K Rice
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - D C Rao
- Division of Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Francesco Falciani
- Centre for Computational Biology and Modelling, Institute for Integrative Biology, University of Liverpool, Liverpool, UK
| | - Claude Bouchard
- Human Genomics Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| |
Collapse
|
147
|
Franzke B, Neubauer O, Wagner KH. Super DNAging—New insights into DNA integrity, genome stability and telomeres in the oldest old. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2015; 766:48-57. [DOI: 10.1016/j.mrrev.2015.08.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 08/18/2015] [Accepted: 08/19/2015] [Indexed: 01/02/2023]
|
148
|
Sood S, Gallagher IJ, Lunnon K, Rullman E, Keohane A, Crossland H, Phillips BE, Cederholm T, Jensen T, van Loon LJC, Lannfelt L, Kraus WE, Atherton PJ, Howard R, Gustafsson T, Hodges A, Timmons JA. A novel multi-tissue RNA diagnostic of healthy ageing relates to cognitive health status. Genome Biol 2015; 16:185. [PMID: 26343147 PMCID: PMC4561473 DOI: 10.1186/s13059-015-0750-x] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 08/12/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Diagnostics of the human ageing process may help predict future healthcare needs or guide preventative measures for tackling diseases of older age. We take a transcriptomics approach to build the first reproducible multi-tissue RNA expression signature by gene-chip profiling tissue from sedentary normal subjects who reached 65 years of age in good health. RESULTS One hundred and fifty probe-sets form an accurate classifier of young versus older muscle tissue and this healthy ageing RNA classifier performed consistently in independent cohorts of human muscle, skin and brain tissue (n = 594, AUC = 0.83-0.96) and thus represents a biomarker for biological age. Using the Uppsala Longitudinal Study of Adult Men birth-cohort (n = 108) we demonstrate that the RNA classifier is insensitive to confounding lifestyle biomarkers, while greater gene score at age 70 years is independently associated with better renal function at age 82 years and longevity. The gene score is 'up-regulated' in healthy human hippocampus with age, and when applied to blood RNA profiles from two large independent age-matched dementia case-control data sets (n = 717) the healthy controls have significantly greater gene scores than those with cognitive impairment. Alone, or when combined with our previously described prototype Alzheimer disease (AD) RNA 'disease signature', the healthy ageing RNA classifier is diagnostic for AD. CONCLUSIONS We identify a novel and statistically robust multi-tissue RNA signature of human healthy ageing that can act as a diagnostic of future health, using only a peripheral blood sample. This RNA signature has great potential to assist research aimed at finding treatments for and/or management of AD and other ageing-related conditions.
Collapse
Affiliation(s)
- Sanjana Sood
- XRGenomics Ltd, London, UK
- Division of Genetics & Molecular Medicine, King's College London, 8th Floor, Tower Wing, Guy's Hospital, London, SE1 9RT, UK
| | - Iain J Gallagher
- XRGenomics Ltd, London, UK
- School of Health, Stirling University, Stirling, Scotland, UK
| | - Katie Lunnon
- Department of Old Age Psychiatry, King's College London, London, UK
- Present address: University of Exeter Medical School, Exeter, UK
| | - Eric Rullman
- Division of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Aoife Keohane
- Department of Old Age Psychiatry, King's College London, London, UK
| | - Hannah Crossland
- Division of Genetics & Molecular Medicine, King's College London, 8th Floor, Tower Wing, Guy's Hospital, London, SE1 9RT, UK
- School of Medicine, Derby Royal Hospital, Derbyshire, UK
| | | | - Tommy Cederholm
- Department of Public Health, Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | | | | | - Lars Lannfelt
- Department of Public Health and Caring Sciences/Molecular Geriatrics, Uppsala University, Uppsala, Sweden
| | - William E Kraus
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA
| | | | - Robert Howard
- Department of Old Age Psychiatry, King's College London, London, UK
| | - Thomas Gustafsson
- Division of Clinical Physiology, Karolinska University Hospital, Stockholm, Sweden
| | - Angela Hodges
- Department of Old Age Psychiatry, King's College London, London, UK
| | - James A Timmons
- XRGenomics Ltd, London, UK.
- Division of Genetics & Molecular Medicine, King's College London, 8th Floor, Tower Wing, Guy's Hospital, London, SE1 9RT, UK.
| |
Collapse
|
149
|
Ekman C, Elgzyri T, Ström K, Almgren P, Parikh H, Dekker Nitert M, Rönn T, Manderson Koivula F, Ling C, Tornberg ÅB, Wollmer P, Eriksson KF, Groop L, Hansson O. Less pronounced response to exercise in healthy relatives to type 2 diabetic subjects compared with controls. J Appl Physiol (1985) 2015; 119:953-60. [PMID: 26338460 DOI: 10.1152/japplphysiol.01067.2014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 08/27/2015] [Indexed: 01/03/2023] Open
Abstract
Healthy first-degree relatives with heredity of type 2 diabetes (FH+) are known to have metabolic inflexibility compared with subjects without heredity for diabetes (FH-). In this study, we aimed to test the hypothesis that FH+ individuals have an impaired response to exercise compared with FH-. Sixteen FH+ and 19 FH- insulin-sensitive men similar in age, peak oxygen consumption (V̇o2 peak), and body mass index completed an exercise intervention with heart rate monitored during exercise for 7 mo. Before and after the exercise intervention, the participants underwent a physical examination and tests for glucose tolerance and exercise capacity, and muscle biopsies were taken for expression analysis. The participants attended, on average, 39 training sessions during the intervention and spent 18.8 MJ on exercise. V̇o2 peak/kg increased by 14%, and the participants lost 1.2 kg of weight and 3 cm waist circumference. Given that the FH+ group expended 61% more energy during the intervention, we used regression analysis to analyze the response in the FH+ and FH- groups separately. Exercise volume had a significant effect on V̇o2 peak, weight, and waist circumference in the FH- group, but not in the FH+ group. After exercise, expression of genes involved in metabolism, oxidative phosphorylation, and cellular respiration increased more in the FH- compared with the FH+ group. This suggests that healthy, insulin-sensitive FH+ and FH- participants with similar age, V̇o2 peak, and body mass index may respond differently to an exercise intervention. The FH+ background might limit muscle adaptation to exercise, which may contribute to the increased susceptibility to type 2 diabetes in FH+ individuals.
Collapse
Affiliation(s)
- C Ekman
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - T Elgzyri
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - K Ström
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden; Swedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden
| | - P Almgren
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - H Parikh
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden; Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Marloes Dekker Nitert
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - T Rönn
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | | | - C Ling
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - Å B Tornberg
- Department of Health Sciences, Division of Physiotherapy, Lund University, Lund, Sweden; Genetic Molecular Epidemiology Unit, Lund University Diabetes Center, Clinical Research Centre, Malmö, Sweden; and
| | - P Wollmer
- Department of Health Sciences, Division of Physiotherapy, Lund University, Lund, Sweden; Department of Clinical Sciences, Clinical Physiology and Nuclear Medicine Unit, Lund University, Malmö, Sweden
| | - K F Eriksson
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - L Groop
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden
| | - O Hansson
- Department of Clinical Sciences, Clinical Research Centre, Malmö University Hospital, Lund University, Malmö, Sweden;
| |
Collapse
|
150
|
Stephens NA, Xie H, Johannsen NM, Church TS, Smith SR, Sparks LM. A transcriptional signature of "exercise resistance" in skeletal muscle of individuals with type 2 diabetes mellitus. Metabolism 2015; 64:999-1004. [PMID: 26163877 PMCID: PMC5267524 DOI: 10.1016/j.metabol.2015.06.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/05/2015] [Accepted: 06/11/2015] [Indexed: 10/23/2022]
Abstract
AIMS/HYPOTHESIS Exercise benefits most, but not all, individuals with type 2 diabetes mellitus (T2DM). The aim of this study was to determine whether a proportion of individuals with T2DM would fail to demonstrate exercise-induced metabolic improvements. We hypothesized that this lack of response would be related to their skeletal muscle transcriptional profile. METHODS 42 participants with T2DM from the previously reported HART-D study underwent a 9-month supervised exercise intervention. We performed a principal components analysis to distinguish Responders from Non-Responders (n=9 each) based on: decreases in (1) HbA1c, (2) %fat (3) BMI and (4) increase in skeletal muscle mtDNA. mRNA expression patterns in muscle tissue at baseline were assessed by microarray and qRT-PCR analysis in both groups. RESULTS Of 186 genes identified by microarray analysis, 70% were up-regulated in Responders and down-regulated in Non-Responders. Several genes involved in substrate metabolism and mitochondrial biogenesis were significantly different (fold-change>1.5, p<0.05) between the groups at baseline, indicating a blunted oxidative capacity at baseline in Non-Responders. CONCLUSIONS/INTERPRETATIONS These data suggest that a unique baseline expression pattern of genes involved in muscle fuel metabolism may predict an individual's lack of exercise response in metabolic outcomes, thus allowing exercise interventions to be targeted to these individuals and aid in the identification of novel approaches to treat Non-Responders in the future.
Collapse
Affiliation(s)
- Natalie A Stephens
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA; Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Orlando, FL, USA
| | - Hui Xie
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA; Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Orlando, FL, USA
| | - Neil M Johannsen
- Pennington Biomedical Research Center, Department of Preventive Medicine, Baton Rouge, LA, USA; Louisiana State University, Department of Kinesiology, Baton Rouge, LA, USA
| | - Timothy S Church
- Pennington Biomedical Research Center, Department of Preventive Medicine, Baton Rouge, LA, USA
| | - Steven R Smith
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA; Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Orlando, FL, USA
| | - Lauren M Sparks
- Translational Research Institute for Metabolism and Diabetes, Florida Hospital, Orlando, FL, USA; Diabetes and Obesity Research Center, Sanford-Burnham Medical Research Institute, Orlando, FL, USA.
| |
Collapse
|