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Brubaker PH, Nicklas BJ, Houston DK, Hundley WG, Chen H, Molina AJA, Lyles WM, Nelson B, Upadhya B, Newland R, Kitzman DW. A Randomized, Controlled Trial of Resistance Training Added to Caloric Restriction Plus Aerobic Exercise Training in Obese Heart Failure With Preserved Ejection Fraction. Circ Heart Fail 2023; 16:e010161. [PMID: 36314122 PMCID: PMC9974606 DOI: 10.1161/circheartfailure.122.010161] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND We have shown that combined caloric restriction (CR) and aerobic exercise training (AT) improve peak exercise O2 consumption (VO2peak), and quality-of-life in older patients with obese heart failure with preserved ejection fraction. However, ≈35% of weight lost during CR+AT was skeletal muscle mass. We examined whether addition of resistance training (RT) to CR+AT would reduce skeletal muscle loss and further improve outcomes. METHODS This study is a randomized, controlled, single-blind, 20-week trial of RT+CR+AT versus CR+AT in 88 patients with chronic heart failure with preserved ejection fraction and body mass index (BMI) ≥28 kg/m2. Outcomes at 20 weeks included the primary outcome (VO2peak); MRI and dual X-ray absorptiometry; leg muscle strength and quality (leg strength ÷ leg skeletal muscle area); and Kansas City Cardiomyopathy Questionnaire. RESULTS Seventy-seven participants completed the trial. RT+CR+AT and CR+AT produced nonsignificant differences in weight loss: mean (95% CI): -8 (-9, -7) versus -9 (-11, -8; P=0.21). RT+CR+AT and CR+AT had non-significantly differences in the reduction of body fat [-6.5 (-7.2, -5.8) versus -7.4 (-8.1, -6.7) kg] and skeletal muscle [-2.1 (-2.7, -1.5) versus -2.1 (-2.7, -1.4) kg] (P=0.20 and 0.23, respectively). RT+CR+AT produced significantly greater increases in leg muscle strength [4.9 (0.7, 9.0) versus -1.1 (-5.5, 3.2) Nm, P=0.05] and leg muscle quality [0.07 (0.03, 0.11) versus 0.02 (-0.02, 0.06) Nm/cm2, P=0.04]. Both RT+CR+AT and CR+AT produced significant improvements in VO2peak [108 (958, 157) versus 80 (30, 130) mL/min; P=0.001 and 0.002, respectively], and Kansas City Cardiomyopathy Questionnaire score [17 (12, 22) versus 23 (17, 28); P=0.001 for both], with no significant between-group differences. Both RT+CR+AT and CR+AT significantly reduced LV mass and arterial stiffness. There were no study-related serious adverse events. CONCLUSIONS In older obese heart failure with preserved ejection fraction patients, CR+AT produces large improvements in VO2peak and quality-of-life. Adding RT to CR+AT increased leg strength and muscle quality without attenuating skeletal muscle loss or further increasing VO2peak or quality-of-life. REGISTRATION URL: https://ClincalTrials.gov; Unique identifier: NCT02636439.
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Affiliation(s)
- Peter H Brubaker
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC (P.H.B.)
| | - Barbara J Nicklas
- Section on Gerontology and Geriatric Medicine, Department of Internal Medicine (B.J.N., D.K.H., W.M.L., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - Denise K Houston
- Section on Gerontology and Geriatric Medicine, Department of Internal Medicine (B.J.N., D.K.H., W.M.L., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - W Gregory Hundley
- Section on Gerontology and Geriatric Medicine, Department of Internal Medicine (B.J.N., D.K.H., W.M.L., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
- Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond (W.G.H.)
| | - Haiying Chen
- Department of Biostatistical Sciences, Division of Public Health Sciences (H.C.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - Anthony J A Molina
- Department of Medicine, Division of Geriatrics, Gerontology and Palliative Care, University of California San Diego, La Jolla (A.J.A.M.)
| | - W Mary Lyles
- Section on Gerontology and Geriatric Medicine, Department of Internal Medicine (B.J.N., D.K.H., W.M.L., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - Benjamin Nelson
- Section on Cardiology, Department of Internal Medicine (B.N., B.U., R.N., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - Bharathi Upadhya
- Section on Cardiology, Department of Internal Medicine (B.N., B.U., R.N., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - Russell Newland
- Section on Cardiology, Department of Internal Medicine (B.N., B.U., R.N., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
| | - Dalane W Kitzman
- Section on Gerontology and Geriatric Medicine, Department of Internal Medicine (B.J.N., D.K.H., W.M.L., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
- Section on Cardiology, Department of Internal Medicine (B.N., B.U., R.N., D.W.K.), Wake Forest University School of Medicine, Winston-Salem, NC
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Guo J, Huang X, Dou L, Yan M, Shen T, Tang W, Li J. Aging and aging-related diseases: from molecular mechanisms to interventions and treatments. Signal Transduct Target Ther 2022; 7:391. [PMID: 36522308 PMCID: PMC9755275 DOI: 10.1038/s41392-022-01251-0] [Citation(s) in RCA: 199] [Impact Index Per Article: 99.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 12/23/2022] Open
Abstract
Aging is a gradual and irreversible pathophysiological process. It presents with declines in tissue and cell functions and significant increases in the risks of various aging-related diseases, including neurodegenerative diseases, cardiovascular diseases, metabolic diseases, musculoskeletal diseases, and immune system diseases. Although the development of modern medicine has promoted human health and greatly extended life expectancy, with the aging of society, a variety of chronic diseases have gradually become the most important causes of disability and death in elderly individuals. Current research on aging focuses on elucidating how various endogenous and exogenous stresses (such as genomic instability, telomere dysfunction, epigenetic alterations, loss of proteostasis, compromise of autophagy, mitochondrial dysfunction, cellular senescence, stem cell exhaustion, altered intercellular communication, deregulated nutrient sensing) participate in the regulation of aging. Furthermore, thorough research on the pathogenesis of aging to identify interventions that promote health and longevity (such as caloric restriction, microbiota transplantation, and nutritional intervention) and clinical treatment methods for aging-related diseases (depletion of senescent cells, stem cell therapy, antioxidative and anti-inflammatory treatments, and hormone replacement therapy) could decrease the incidence and development of aging-related diseases and in turn promote healthy aging and longevity.
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Affiliation(s)
- Jun Guo
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
| | - Xiuqing Huang
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
| | - Lin Dou
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
| | - Mingjing Yan
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
| | - Tao Shen
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
| | - Weiqing Tang
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
| | - Jian Li
- grid.506261.60000 0001 0706 7839The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730 China
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Factor structure, reliability, inter-rater agreement and convergent validity of the parent and child Italian versions of the paediatric quality of life inventory multidimensional fatigue scale for children and adolescents in paediatric inpatients with obesity and their parents. Eat Weight Disord 2022; 27:295-306. [PMID: 33786737 DOI: 10.1007/s40519-021-01152-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/11/2021] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE This study aimed to examine the factor structure, reliability, inter-rater agreement and convergent validity of the child and parent Italian versions of the paediatric quality of life inventory multidimensional fatigue scale (PedsQL-MFS) in paediatric inpatients with obesity and one of their parents. METHODS 100 pairs of children/adolescents (64% female, mean age = 15.34) with obesity and one of their parents completed the PedsQL-MFS and the Child Behaviour Checklist (CBCL) or the Youth Self Report. RESULTS Confirmatory Factor Analysis indicated that the three correlated first-order factors model corresponding to the published subscales demonstrated acceptable fit and achieved strict invariance across parent and child informants. Bifactor Analysis supported the multidimensionality and the reliability of the total and subscale scores as multidimensional composites. Parent-child agreement was low with latent means higher for parent reports. PedsQL-MFS total scores were strongly correlated with Somatic Complaints scores on the CBCL, and moderately associated with anxiety, depression, social problems and school problems. CONCLUSIONS Total scores of the child and parent Italian versions of the PedsQL-MFS demonstrated good reliability and convergent validity in paediatric inpatients with obesity and their parents, and are complementary rather than interchangeable. LEVEL OF EVIDENCE No level of evidence.
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Abstract
While much has been written about the syndrome of diabetic cardiomyopathy, clinicians and research scientists are now beginning to realize that an entirely unique syndrome exists, albeit with several commonalities to the diabetic syndrome, that being obesity cardiomyopathy. This syndrome develops independent of such comorbidities as hypertension, myocardial infarction and coronary artery disease; and it is characterized by specific alterations in adipose tissue function, inflammation and metabolism. Recent insights into the etiology of the syndrome and its consequences have focused on the roles played by altered intracellular calcium homeostasis, reactive oxygen species, and mitochondrial dysfunction. A timely and comprehensive review by Ren, Wu, Wang, Sowers and Zhang (1) identifies unique mechanisms underlying this syndrome, its relationship to heart failure and the recently identified incidence of COVID-19-related cardiovascular mortality. Importantly, the review concludes by advancing recommendations for novel approaches to the clinical management of this dangerous form of cardiomyopathy.
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Affiliation(s)
- Willis K Samson
- Department of Pharmacology and Physiology, Saint Louis University, St. Louis, MO, United States
| | - Gina L C Yosten
- Department of Pharmacology and Physiology, Saint Louis University, St. Louis, MO, United States
| | - Carol Ann Remme
- Experimental Cardiology, Academic Medical Center, Amsterdam, Netherlands
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Brinkley TE, Leng I, Bailey MJ, Houston DK, Hugenschmidt CE, Nicklas BJ, Hundley WG. Effects of Exercise and Weight Loss on Proximal Aortic Stiffness in Older Adults With Obesity. Circulation 2021; 144:684-693. [PMID: 34333991 DOI: 10.1161/circulationaha.120.051943] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Obesity may accelerate age-related increases in aortic stiffness. Although aerobic exercise training generally has favorable effects on aortic structure and function, exercise alone may not be sufficient to improve aortic stiffness in older adults with obesity. We determined the effects of aerobic exercise training with and without moderate- to high-caloric restriction (CR) on the structure and function of the proximal aorta in 160 older (65-79 years) men and women with obesity (body mass index=30-45 kg/m2). METHODS Participants were randomly assigned to 1 of 3 groups: aerobic exercise training only (treadmill 4 days/week for 30 minutes at 65% to 70% of heart rate reserve; n=56), aerobic exercise training plus moderate CR (n=55), or aerobic exercise training plus more intensive CR (n=49) for 20 weeks. Aortic pulse wave velocity, aortic distensibility, and other measures of aortic structure and function were assessed by cardiovascular magnetic resonance imaging. Pearson correlation coefficients were examined to assess associations between changes in proximal aortic stiffness and changes in fitness, fatness, and other potential confounders. RESULTS Weight loss in the aerobic exercise training plus moderate CR (-8.0 kg [95% CI, -9.17 to -6.87]) and aerobic exercise training plus more intensive CR (-8.98 kg [95% CI, -10.23 to -7.73) groups was significantly greater compared with the aerobic exercise training-only group (-1.66 kg [95% CI, -2.94 to -0.38]; P<0.017 for both). There were significant treatment effects for descending aorta distensibility (P=0.008) and strain (P=0.004) and aortic arch pulse wave velocity (P=0.01) with the aerobic exercise training plus moderate CR group having a 21% increase in distensibility (P=0.016) and an 8% decrease in pulse wave velocity (P=0.058). None of the aortic stiffness measures changed significantly in the aerobic exercise training-only or aerobic exercise training plus more intensive CR groups, and there were no significant changes in any other measure of aortic structure or function in these groups. Overall, increases in aortic distensibility were correlated with improvements in body weight and body fat distribution, but these associations were not statistically significant after adjustment for multiple comparisons. CONCLUSIONS In older adults with obesity, combining aerobic exercise with moderate CR leads to greater improvements in proximal aortic stiffness than exercise alone. Registration: URL: https://clinicaltrials.gov; Unique identifier: NCT01048736.
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Affiliation(s)
- Tina E Brinkley
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine (T.E.B., D.K.H., C.E.H., B.J.N.)
| | - Iris Leng
- Division of Public Health Sciences, Department of Biostatistics and Data Science (I.L.)
| | - Margie J Bailey
- Hypertension and Vascular Research Center (M.J.B.), Wake Forest School of Medicine, Winston-Salem, NC
| | - Denise K Houston
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine (T.E.B., D.K.H., C.E.H., B.J.N.)
| | - Christina E Hugenschmidt
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine (T.E.B., D.K.H., C.E.H., B.J.N.)
| | - Barbara J Nicklas
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine (T.E.B., D.K.H., C.E.H., B.J.N.)
| | - W Gregory Hundley
- Department of Internal Medicine, Virginia Commonwealth University, Richmond (W.G.H.)
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Manukian G, Kivolowitz C, DeAngelis T, Shastri AA, Savage JE, Camphausen K, Rodeck U, Zarif JC, Simone NL. Caloric Restriction Impairs Regulatory T cells Within the Tumor Microenvironment After Radiation and Primes Effector T cells. Int J Radiat Oncol Biol Phys 2021; 110:1341-1349. [PMID: 33647370 PMCID: PMC8286289 DOI: 10.1016/j.ijrobp.2021.02.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/04/2021] [Accepted: 02/12/2021] [Indexed: 12/12/2022]
Abstract
Outcomes for triple negative breast cancer (TNBC) are poor and may be improved by increasing CD8+ tumor infiltrating lymphocytes (TIL) to augment antitumor immunity. Radiation (RT) can promote immunogenic cell death with increased antitumor T cell activity but also stimulates suppressive regulatory T cells (Tregs). Because metabolic alterations affect immune homeostasis and prior studies show caloric restriction (CR) combined with RT improves preclinical TNBC outcomes, we hypothesized that CR augments RT, in part, by altering intratumoral immunity. Using an in vivo model of TNBC, we treated mice with ad libitum (AL) diet, radiation, a CR diet, or CR + RT, and demonstrated an immune suppressive environment with a significant increase in CD4+ CD25+Foxp3+ Tregs after RT but not in CR-fed mice. CD8:Treg ratio in CR + RT TIL increased 4-fold compared with AL + RT mice. In vivo CD8 depletion was performed to assess the role of effector T cells in mitigating the effects of CR, and it was found that in mice undergoing CR, depletion of CD8 T cells resulted in increased tumor progression and decreased median survival compared with isotype control-treated mice. In addition, PD-1 expression on CD3+CD8+ T cells within the tumor microenvironment was significantly increased in CR + RT versus AL + RT treated mice as per immunofluorescence. Serum from breast cancer patients undergoing RT alone or CR and RT was collected pre- and postintervention, and a cytokine array demonstrated that patients treated with CR + RT had notable decreases in immunosuppressive cytokines such as IL-2Rγ, IL-10Rβ, and TGF-β2 and 3 compared with patients receiving RT alone. In conclusion, combining CR with RT decreases intratumoral Tregs, increases CD8:Treg, and increases PD-1 expression via a process dependent on CD8 T cells in a TNBC model. Breast cancer patients undergoing CR concurrently with RT also had significant reduction in immunosuppressive cytokine levels compared with those receiving RT alone.
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Affiliation(s)
- Gregor Manukian
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Charles Kivolowitz
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Tiziana DeAngelis
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Anuradha A Shastri
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Jason E Savage
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Kevin Camphausen
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Ulrich Rodeck
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Jelani C Zarif
- Department of Oncology, Prostate Cancer Program, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Nicole L Simone
- Department of Radiation Oncology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania.
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Lisko I, Kulmala J, Annetorp M, Ngandu T, Mangialasche F, Kivipelto M. How can dementia and disability be prevented in older adults: where are we today and where are we going? J Intern Med 2021; 289:807-830. [PMID: 33314384 PMCID: PMC8248434 DOI: 10.1111/joim.13227] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Ageing of the population, together with population growth, has brought along an ample increase in the number of older individuals living with dementia and disabilities. Dementia is the main cause of disability in old age, and promoting healthy brain ageing is considered as a key element in diminishing the burden of age-related disabilities. The World Health Organization recently launched the first risk reduction guidelines for cognitive impairment and dementia. According to recent estimates, approximately 40% of dementia cases worldwide could be attributable to 12 modifiable risk factors: low education; midlife hypertension and obesity; diabetes, smoking, excessive alcohol use, physical inactivity, depression, low social contact, hearing loss, traumatic brain injury and air pollution indicating clear prevention potential. Dementia and physical disability are closely linked with shared risk factors and possible shared underlying mechanisms supporting the possibility of integrated preventive interventions. FINGER trial was the first large randomized controlled trial indicating that multidomain lifestyle-based intervention can prevent cognitive and functional decline amongst at-risk older adults from the general population. Within the World-Wide FINGERS network, the multidomain FINGER concept is now tested and adapted worldwide proving evidence and tools for effective and easily implementable preventive strategies. Close collaboration between researchers, policymakers and healthcare practitioners, involvement of older adults and utilization of new technologies to support self-management is needed to facilitate the implementation of the research findings. In this scoping review, we present the current scientific evidence in the field of dementia and disability prevention and discuss future directions in the field.
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Affiliation(s)
- I. Lisko
- From theDivision of Clinical GeriatricsCenter for Alzheimer ResearchDepartment of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
- Faculty of Sport and Health Sciences and Gerontology Research CenterUniversity of JyväskyläJyväskyläFinland
| | - J. Kulmala
- From theDivision of Clinical GeriatricsCenter for Alzheimer ResearchDepartment of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
- Public Health Promotion UnitFinnish Institute for Health and WelfareHelsinkiFinland
- School of Health Care and Social WorkSeinäjoki University of Applied SciencesSeinäjokiFinland
| | - M. Annetorp
- Karolinska University Hospital, Theme AgingStockholmSweden
| | - T. Ngandu
- From theDivision of Clinical GeriatricsCenter for Alzheimer ResearchDepartment of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
- Public Health Promotion UnitFinnish Institute for Health and WelfareHelsinkiFinland
| | - F. Mangialasche
- From theDivision of Clinical GeriatricsCenter for Alzheimer ResearchDepartment of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
- Aging Research CenterDepartment of Neurobiology, Care Sciences and SocietyKarolinska Institutet and Stockholm UniversityStockholmSweden
| | - M. Kivipelto
- From theDivision of Clinical GeriatricsCenter for Alzheimer ResearchDepartment of Neurobiology, Care Sciences and SocietyKarolinska InstitutetStockholmSweden
- Karolinska University Hospital, Theme AgingStockholmSweden
- Institute of Public Health and Clinical NutritionUniversity of Eastern FinlandHelsinkiFinland
- Ageing and Epidemiology (AGE) Research UnitSchool of Public HealthImperial College LondonLondonUK
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8
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Ren J, Wu NN, Wang S, Sowers JR, Zhang Y. Obesity cardiomyopathy: evidence, mechanisms, and therapeutic implications. Physiol Rev 2021; 101:1745-1807. [PMID: 33949876 PMCID: PMC8422427 DOI: 10.1152/physrev.00030.2020] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The prevalence of heart failure is on the rise and imposes a major health threat, in part, due to the rapidly increased prevalence of overweight and obesity. To this point, epidemiological, clinical, and experimental evidence supports the existence of a unique disease entity termed “obesity cardiomyopathy,” which develops independent of hypertension, coronary heart disease, and other heart diseases. Our contemporary review evaluates the evidence for this pathological condition, examines putative responsible mechanisms, and discusses therapeutic options for this disorder. Clinical findings have consolidated the presence of left ventricular dysfunction in obesity. Experimental investigations have uncovered pathophysiological changes in myocardial structure and function in genetically predisposed and diet-induced obesity. Indeed, contemporary evidence consolidates a wide array of cellular and molecular mechanisms underlying the etiology of obesity cardiomyopathy including adipose tissue dysfunction, systemic inflammation, metabolic disturbances (insulin resistance, abnormal glucose transport, spillover of free fatty acids, lipotoxicity, and amino acid derangement), altered intracellular especially mitochondrial Ca2+ homeostasis, oxidative stress, autophagy/mitophagy defect, myocardial fibrosis, dampened coronary flow reserve, coronary microvascular disease (microangiopathy), and endothelial impairment. Given the important role of obesity in the increased risk of heart failure, especially that with preserved systolic function and the recent rises in COVID-19-associated cardiovascular mortality, this review should provide compelling evidence for the presence of obesity cardiomyopathy, independent of various comorbid conditions, underlying mechanisms, and offer new insights into potential therapeutic approaches (pharmacological and lifestyle modification) for the clinical management of obesity cardiomyopathy.
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Affiliation(s)
- Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China.,Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
| | - Ne N Wu
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
| | - Shuyi Wang
- School of Medicine, Shanghai University, Shanghai, China.,University of Wyoming College of Health Sciences, Laramie, Wyoming
| | - James R Sowers
- Dalton Cardiovascular Research Center, Diabetes and Cardiovascular Research Center, University of Missouri-Columbia, Columbia, Missouri
| | - Yingmei Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital Fudan University, Shanghai, China
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Batsis JA, Zagaria AB, Brooks E, Clark MM, Phelan S, Lopez-Jimenez F, Bartels SJ, Rotenberg S, Carpenter-Song E. The Use and Meaning of the Term Obesity in Rural Older Adults: A Qualitative Study. J Appl Gerontol 2021; 40:423-432. [PMID: 32065013 PMCID: PMC7429325 DOI: 10.1177/0733464820903253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The term "obesity" is associated with societal stigma and discrimination. Eight individual semi-structured interviews and five focus groups with 29 community-dwelling, rural older adults with obesity, seven primary care clinicians, and four rural community leaders were completed using purposive and snowball sampling. Clinicians perceived that older adults are less affected by obesity stigma than younger adults, yet this was not observed by community leaders; however, older participants with obesity reported that they often felt ashamed and/or stigmatized because of their weight. There was also a disconnect between clinician and older adult understanding of obesity. For older adults with obesity, the word "obesity" was associated with negative connotations. Just as physiological aspects of obesity persist into older adulthood, so do psychological aspects, such as perceptions of stigma. The use of the word "obesity" in medical settings may hinder communication between clinician and older participants. Heightened awareness may change the dialogue around obesity.
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Affiliation(s)
- John A. Batsis
- Geisel School of Medicine and The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
- Section of General Internal Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH
- Dartmouth Centers for Health and Aging, Dartmouth College, Hanover, NH
- Health Promotion Research Center at Dartmouth, Lebanon, NH
| | - Alexandra B. Zagaria
- Geisel School of Medicine and The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, NH
| | - Emma Brooks
- Dartmouth Centers for Health and Aging, Dartmouth College, Hanover, NH
- Section of Weight & Wellness, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Matthew M. Clark
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN
| | - Sean Phelan
- Division of Health Care Policy and Research, Mayo Clinic, Rochester, MN
| | | | | | - Sivan Rotenberg
- Department of Psychiatry, Dartmouth Hitchcock Medical Center, Lebanon, NH
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10
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Yan M, Sun S, Xu K, Huang X, Dou L, Pang J, Tang W, Shen T, Li J. Cardiac Aging: From Basic Research to Therapeutics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9570325. [PMID: 33777324 PMCID: PMC7969106 DOI: 10.1155/2021/9570325] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 02/07/2021] [Accepted: 02/11/2021] [Indexed: 01/12/2023]
Abstract
With research progress on longevity, we have gradually recognized that cardiac aging causes changes in heart structure and function, including progressive myocardial remodeling, left ventricular hypertrophy, and decreases in systolic and diastolic function. Elucidating the regulatory mechanisms of cardiac aging is a great challenge for biologists and physicians worldwide. In this review, we discuss several key molecular mechanisms of cardiac aging and possible prevention and treatment methods developed in recent years. Insights into the process and mechanism of cardiac aging are necessary to protect against age-related diseases, extend lifespan, and reduce the increasing burden of cardiovascular disease in elderly individuals. We believe that research on cardiac aging is entering a new era of unique significance for the progress of clinical medicine and social welfare.
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Affiliation(s)
- Mingjing Yan
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking University Fifth School of Clinical Medicine, Beijing 100730, China
| | - Shenghui Sun
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Kun Xu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Xiuqing Huang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Lin Dou
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Jing Pang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Weiqing Tang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Tao Shen
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking University Fifth School of Clinical Medicine, Beijing 100730, China
| | - Jian Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
- Peking University Fifth School of Clinical Medicine, Beijing 100730, China
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11
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Batsis JA, Petersen CL, Clark MM, Cook SB, Kotz D, Gooding TL, Roderka MN, Al-Nimr RI, Pidgeon D, Haedrich A, Wright KC, Aquila C, Mackenzie TA. Feasibility and acceptability of a technology-based, rural weight management intervention in older adults with obesity. BMC Geriatr 2021; 21:44. [PMID: 33435877 PMCID: PMC7801868 DOI: 10.1186/s12877-020-01978-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/21/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Older adults with obesity residing in rural areas have reduced access to weight management programs. We determined the feasibility, acceptability and preliminary outcomes of an integrated technology-based health promotion intervention in rural-living, older adults using remote monitoring and synchronous video-based technology. METHODS A 6-month, non-randomized, non-blinded, single-arm study was conducted from October 2018 to May 2020 at a community-based aging center of adults aged ≥65 years with a body mass index (BMI) ≥30 kg/m2. Weekly dietitian visits focusing on behavior therapy and caloric restriction and twice-weekly physical therapist-led group strength, flexibility and balance training classes were delivered using video-conferencing to participants in their homes. Participants used a Fitbit Alta HR for remote monitoring with data feedback provided by the interventionists. An aerobic activity prescription was provided and monitored. RESULTS Mean age was 72.9±3.9 years (82% female). Baseline anthropometric measures of weight, BMI, and waist circumference were 97.8±16.3 kg, 36.5±5.2 kg/m2, and 115.5±13.0 cm, respectively. A total of 142 participants were screened (n=27 ineligible), and 53 consented. There were nine dropouts (17%). Overall satisfaction with the trial (4.7+ 0.6, scale: 1 (low) to 5 (high)) and with Fitbit (4.2+ 0.9) were high. Fitbit was worn an average of 81.7±19.3% of intervention days. In completers, mean weight loss was 4.6±3.5 kg or 4.7±3.5% (p< 0.001). Physical function measures of 30-s sit-to-stand repetitions increased from 13.5±5.7 to 16.7±5.9 (p< 0.001), 6-min walk improved by 42.0±77.3 m (p=0.005) but no differences were observed in gait speed or grip strength. Subjective measures of late-life function improved (3.4±4.7 points, p< 0.001). CONCLUSIONS A technology-based obesity intervention is feasible and acceptable to older adults with obesity and may lead to weight loss and improved physical function. CLINICAL TRIAL REGISTRATION Registered on Clinicaltrials.gov # NCT03104205 . Registered on April 7, 2017. First participant enrolled on October 1st, 2018.
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Affiliation(s)
- John A Batsis
- Division of Geriatric Medicine, School of Medicine, and Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 5017 Old Clinic Building, Chapel Hill, NC, 27599, USA.
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA.
| | | | - Matthew M Clark
- Mayo Clinic Rochester, Department of Psychiatry and Psychology, and Division of Endocrinology, Rochester, MN, USA
| | | | | | - Tyler L Gooding
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
| | - Meredith N Roderka
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
| | - Rima I Al-Nimr
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
| | - Dawna Pidgeon
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
| | - Ann Haedrich
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
| | - K C Wright
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
| | - Christina Aquila
- Dartmouth-Hitchcock, Geisel School of Medicine, and The Dartmouth Institute for Health Policy, Hanover, NH, USA
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12
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Goisser S, Kiesswetter E, Schoene D, Torbahn G, Bauer JM. Dietary weight-loss interventions for the management of obesity in older adults. Rev Endocr Metab Disord 2020; 21:355-368. [PMID: 32829454 DOI: 10.1007/s11154-020-09577-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The obesity epidemic has reached old age in most industrialized countries, but trials elucidating the benefits and risks of weight reduction in older adults above 70 years of age with obesity remain scarce. While some findings demonstrate a reduced risk of mortality and other negative health outcomes in older individuals with overweight and mild obesity (i.e. body mass index (BMI) < 35 kg/m2), other recent research indicates that voluntary weight loss can positively affect diverse health outcomes in older individuals with overweight and obesity (BMI > 27 kg/m2), especially when combined with exercise. However, in this age group weight reduction is usually associated with a reduction of muscle mass and bone mineral density. Since uncertainty persists as to which level overweight or obesity might be tolerable (or even beneficial) for older persons, current recommendations are to consider weight reducing diets only for older persons that are obese (BMI ≥ 30 kg/m2) and have weight-related health problems. Precise treatment modalities (e.g. appropriate level of caloric restriction and indicated dietary composition, such as specific dietary patterns or optimal protein content) as well as the most effective and safest way of adding exercise are still under research. Moreover, the long-term effects of weight-reducing interventions in older individuals remain to be clarified, and dietary concepts that work for older adults who are unable or unwilling to exercise are required. In conclusion, further research is needed to elucidate which interventions are effective in reducing obesity-related health risks in older adults without causing relevant harm in this vulnerable population.
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Affiliation(s)
- Sabine Goisser
- Centre for Geriatric Medicine, Heidelberg University Hospital, Heidelberg, Germany.
- Network Aging Research (NAR), Heidelberg University, Heidelberg, Germany.
| | - Eva Kiesswetter
- Institute for Biomedicine of Aging (IBA), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nuremberg, Germany
| | - Daniel Schoene
- Institute of Medical Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Department of Geriatric Rehabilitation, Robert-Bosch Hospital, Stuttgart, Germany
| | - Gabriel Torbahn
- Institute for Biomedicine of Aging (IBA), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nuremberg, Germany
| | - Jürgen M Bauer
- Centre for Geriatric Medicine, Heidelberg University Hospital, Heidelberg, Germany
- Network Aging Research (NAR), Heidelberg University, Heidelberg, Germany
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13
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Beavers KM, Neiberg RH, Kritchevsky SB, Nicklas BJ, Kitzman DW, Messier SP, Rejeski WJ, Ard JD, Beavers DP. Association of Sex or Race With the Effect of Weight Loss on Physical Function: A Secondary Analysis of 8 Randomized Clinical Trials. JAMA Netw Open 2020; 3:e2014631. [PMID: 32821924 PMCID: PMC7442923 DOI: 10.1001/jamanetworkopen.2020.14631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
IMPORTANCE Consideration of differential treatment effects among subgroups in clinical trial research is a topic of increasing interest. This is an especially salient issue for weight loss trials. OBJECTIVE To determine whether stratification by sex and race is associated with meaningful differences in physical function response to weight loss among older adults. DESIGN, SETTING, AND PARTICIPANTS This pooled analysis used individual-level data from 8 completed randomized clinical trials of weight loss conducted at Wake Forest University or Wake Forest School of Medicine, Winston-Salem, North Carolina. Data were housed within the Wake Forest Older Americans Independence Center data repository and provided complete exposure, outcome, and covariate information. Data were collected from November 1996 to March 30, 2017, and analyzed from August 15, 2019, to June 10, 2020. EXPOSURES Treatment arms within each study were collapsed into caloric restriction (CR [n = 734]) and non-CR (n = 583) categories based on whether caloric restriction was specified in the original study protocol. MAIN OUTCOMES AND MEASURES Objectively measured 6-month change in weight, fast-paced gait speed (meters per second), and Short Physical Performance Battery (SPPB) score. RESULTS A total of 1317 adults (mean [SD] age, 67.7 [5.4] years; 920 [69.9%] female; 275 [20.9%] Black) with overweight or obesity (mean [SD] body mass index [calculated as weight in kilograms divided by height in meters squared], 33.9 [4.4]) were included at baseline. Six-month weight change achieved among those randomized to CR was -7.7% (95% CI, -8.3% to -7.2%), with no difference noted by sex; however, White individuals lost more weight than Black individuals assigned to CR (-9.0% [95% CI, -9.6% to -8.4%] vs -6.0% [95% CI, -6.9% to 5.2%]; P < .001), and all CR groups lost a significantly greater amount from baseline compared with non-CR groups (Black participants in CR vs non-CR groups, -5.3% [95% CI, -6.4% to -4.1%; P < .001]; White participants in CR vs non-CR groups, -7.2% [95% CI, -7.8% to -6.6%; P < .001]). Women experienced greater weight loss-associated improvement in SPPB score (CR group, 0.35 [95% CI, 0.18-0.52]; non-CR group, 0.08 [95% CI, -0.11 to 0.27]) compared with men (CR group, 0.23 [95% CI, 0.00-0.46]; non-CR group, 0.34 [95% CI, 0.09-0.58]; P = .03). Black participants experienced greater weight loss-associated improvement in gait speed (CR group, 0.08 [95% CI, 0.05-0.10] m/s; non-CR group, 0.02 [95% CI, -0.01 to 0.05] m/s) compared with White participants (CR group, 0.07 [95% CI, 0.06-0.09] m/s; non-CR group, 0.06 [95% CI, 0.04-0.08] m/s; P = .02). CONCLUSIONS AND RELEVANCE The association of weight loss on physical function in older adults appears to differ by sex and race. These findings affirm the need to consider biological variables in clinical trial design.
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Affiliation(s)
- Kristen M. Beavers
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina
| | - Rebecca H. Neiberg
- Department of Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Stephen B. Kritchevsky
- Sections of Gerontology and Cardiovascular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Barbara J. Nicklas
- Sections of Gerontology and Cardiovascular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Dalane W. Kitzman
- Sections of Gerontology and Cardiovascular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Stephen P. Messier
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina
| | - W. Jack Rejeski
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina
| | - Jamy D. Ard
- Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Daniel P. Beavers
- Department of Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, North Carolina
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Abstract
PURPOSE OF REVIEW Obesity in the older adult is a burgeoning health epidemic that leads to increased morbidity, disability, and institutionalization. This review presents a brief overview of geriatric-specific consequences of obesity by highlighting the risks and benefits of intentional weight loss. RECENT FINDINGS Intentional weight loss reduces the extent of adiposity-related illnesses, yet the approach in older adults is fraught with challenges. Interventions combining caloric restriction and physical exercise (aerobic and resistance) maximize fat loss and minimize loss of muscle and bone. Interventions are also effective at improving physical function, reducing medication burden, and improving symptomatic osteoarthritis in this population. Approaches can mitigate the risks of isolated caloric restriction on muscle and bone in a safe and effective manner. Effective weight loss strategies should be considered in older adults. While there are potential risks, practical clinical approaches can minimize the potential harms while maximizing their benefits.
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Affiliation(s)
- Peter R DiMilia
- The Dartmouth Institute for Health Policy & Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
- Dartmouth Centers for Health and Aging, Dartmouth College, Hanover, NH, USA
- Collaboratory for Implementation Science at Dartmouth, Lebanon, NH, USA
| | - Alexander C Mittman
- The Dartmouth Institute for Health Policy & Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA
| | - John A Batsis
- The Dartmouth Institute for Health Policy & Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
- Dartmouth Centers for Health and Aging, Dartmouth College, Hanover, NH, USA.
- Collaboratory for Implementation Science at Dartmouth, Lebanon, NH, USA.
- Health Promotion Research Center at Dartmouth, Lebanon, NH, USA.
- Section of General Internal Medicine, Dartmouth-Hitchcock Medical Center, 1 Medical Center Drive, Lebanon, NH, 03756, USA.
- Section of Weight & Wellness, Department of Medicine, Dartmouth-Hitchcock, Lebanon, NH, USA.
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15
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Hugenschmidt CE, Leng X, Lyles M, Michael L, Dougherty A, Babcock P, Baker LD, Brinkley TE, Nicklas BJ. Cognitive Effects of Adding Caloric Restriction to Aerobic Exercise Training in Older Adults with Obesity. Obesity (Silver Spring) 2019; 27:1266-1274. [PMID: 31199592 PMCID: PMC6656607 DOI: 10.1002/oby.22525] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 04/16/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE This study examined the short- and long-term effects of adding caloric restriction to 5 months of aerobic exercise training on executive function in sedentary older adults with obesity. METHODS Sedentary adults with obesity aged 65 to 79 years completed a randomized trial investigating the cardiorespiratory benefits of adding moderate (~ 250 kcal) or high (~ 600 kcal) caloric restriction to a 20-week aerobic exercise program. Approximately half (n = 88) completed a cognitive assessment battery at baseline, post intervention, and 18 to 24 months after intervention completion. The primary outcome was an executive function composite score. RESULTS In the overall sample, the executive function composite increased 0.114 from baseline to postintervention (P = 0.01). Randomization to caloric restriction did not significantly alter executive function over aerobic exercise alone, nor were there between-group differences on any individual executive function test following the intervention or at long-term follow-up. Adding caloric restriction to exercise was associated with a modest increase in Mini-Mental State Examination score (P = 0.04). In the overall sample, increases from baseline at long-term follow-up were noted in digit symbol and word list recall performance as well. CONCLUSIONS Adding caloric restriction to a 20-week aerobic exercise program does not worsen or improve executive function more than exercise alone assessed up to 24 months post randomization.
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Affiliation(s)
- Christina E. Hugenschmidt
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
| | - Xiaoyan Leng
- Wake Forest School of Medicine, Department of Biostatistical Sciences, Winston-Salem, NC 27157, USA
| | - Mary Lyles
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
| | - Lemaat Michael
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
| | - Ashley Dougherty
- Duke University Medical Center, Family Medicine, Durham, NC 27705, USA
| | - Phyllis Babcock
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
| | - Laura D. Baker
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
| | - Tina E. Brinkley
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
| | - Barbara J. Nicklas
- Wake Forest School of Medicine, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Winston-Salem, NC 27157, USA
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16
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The Role of Dietary Patterns in the Contribution of Cardiorespiratory Fitness in Community-Dwelling Older Chinese Adults in Hong Kong. J Am Med Dir Assoc 2019; 20:558-563. [DOI: 10.1016/j.jamda.2018.12.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 12/07/2018] [Accepted: 12/14/2018] [Indexed: 11/20/2022]
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17
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Houston DK, Miller ME, Kitzman DW, Rejeski WJ, Messier SP, Lyles MF, Kritchevsky SB, Nicklas BJ. Long-Term Effects of Randomization to a Weight Loss Intervention in Older Adults: A Pilot Study. J Nutr Gerontol Geriatr 2019; 38:83-99. [PMID: 30849296 DOI: 10.1080/21551197.2019.1572570] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Randomized, controlled trials (RCTs) show intentional weight loss improves body composition and physical function in older adults; however, the long-term benefits (and risks) are unknown. We conducted a pilot study to assess the feasibility of recalling prior RCT participants to examine the long-term effects of intentional weight loss on body composition and physical function. A weighted, random sample of 60 older adults who were randomized to caloric restriction plus exercise (CR + EX) or exercise (EX) only in 5 prior RCTs (mean age at randomization, 67.3 years; 69% women, 80% white) were invited to participate. Follow-up was obtained on 89% (42 clinic visits, 10 phone interviews, 1 death) an average of 3.5 years (range, 2.2-5.8 years) after RCT completion. Despite greater weight, fat and lean mass loss during the RCT (mean difference in change (95% CI): -4.19 (-7.52, -0.86), -2.75 (-5.10, -0.40), and -2.32 (-3.69, -0.95) kg, respectively) in those randomized to CR + EX, long-term changes in weight (2.05 (-2.35, 6.45) kg) and body composition (1.80 (-1.56, 5.17) and 0.03 (-2.20, 2.26) kg for fat and lean mass, respectively) from baseline and physical function at long-term follow-up (mean difference in 400-m walk and SPPB (95% CI): 23.2 (-19.3, 65.6) sec and -0.03 (-1.02, 0.96) points, respectively) were similar in CR + EX and EX only. Although improvements in weight and body composition following intentional weight loss may not be sustained long-term, physical function does not appear to be negatively impacted. A larger study is needed to confirm these results.
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Affiliation(s)
- Denise K Houston
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,b Department of Internal Medicine, Section on Gerontology and Geriatric Medicine , Wake Forest School of Medicine , Winston-Salem , NC , USA
| | - Michael E Miller
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,c Department of Biostatistical Sciences , Wake Forest School of Medicine , Winston-Salem , NC , USA
| | - Dalane W Kitzman
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,b Department of Internal Medicine, Section on Gerontology and Geriatric Medicine , Wake Forest School of Medicine , Winston-Salem , NC , USA.,d Department of Internal Medicine, Section on Cardiology , Wake Forest School of Medicine , Winston-Salem , NC , USA
| | - W Jack Rejeski
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,e Department of Health and Exercise Science , Wake Forest University , Winston-Salem , NC , USA
| | - Stephen P Messier
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,e Department of Health and Exercise Science , Wake Forest University , Winston-Salem , NC , USA
| | - Mary F Lyles
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,b Department of Internal Medicine, Section on Gerontology and Geriatric Medicine , Wake Forest School of Medicine , Winston-Salem , NC , USA
| | - Stephen B Kritchevsky
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,b Department of Internal Medicine, Section on Gerontology and Geriatric Medicine , Wake Forest School of Medicine , Winston-Salem , NC , USA
| | - Barbara J Nicklas
- a Sticht Center on Aging, Wake Forest School of Medicine , Winston-Salem , NC , USA.,b Department of Internal Medicine, Section on Gerontology and Geriatric Medicine , Wake Forest School of Medicine , Winston-Salem , NC , USA
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Abstract
PURPOSE OF REVIEW Obesity rates worldwide continue to increase and will disproportionately affect older adults because of population aging. This review highlights recent progress pertaining to therapeutic approaches to obesity in older adults. RECENT FINDINGS Caloric restriction alone improves physical function and quality of life in older adults with obesity but is associated with loss of lean mass and increases fracture risk. Adding progressive resistance training to caloric restriction attenuates loss of muscle and bone mass and increasing protein intake enhances this effect. Adding aerobic endurance training to caloric restriction further improves cardiorespiratory fitness but adding both aerobic endurance training and resistance training to caloric restriction results in the greatest improvement in overall physical function while still preserving lean mass. Future promising therapeutic interventions include testosterone, myostatin inhibitors, and bariatric surgery, but there are few studies specific to obese older adults. SUMMARY The optimal approach toward obesity in older persons is lifestyle intervention incorporating caloric restriction and exercise consisting of aerobic endurance training and resistance training. Maintenance of adequate protein intake, calcium, and vitamin D is advisable. There is insufficient evidence specific to obese older adults to recommend testosterone or bariatric surgery at this time. Myostatin inhibitors may become a future treatment, and clinical trials are ongoing.
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Affiliation(s)
- Bryan C. Jiang
- Center for Translational Research in Inflammatory Diseases (CTRID), Michael E DeBakey VA Medical Center, Houston, TX, 77030
- Department of Medicine – Endocrinology, Diabetes, and Metabolism, Baylor College of Medicine, Houston, TX, 77030
| | - Dennis T. Villareal
- Center for Translational Research in Inflammatory Diseases (CTRID), Michael E DeBakey VA Medical Center, Houston, TX, 77030
- Department of Medicine – Endocrinology, Diabetes, and Metabolism, Baylor College of Medicine, Houston, TX, 77030
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