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Exercise older adults

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https://www.readbyqxmd.com/read/29777277/impact-of-muscle-atrophy-on-bone-metabolism-and-bone-strength-implications-for-muscle-bone-crosstalk-with-aging-and-disuse
#1
REVIEW
T Bettis, B-J Kim, M W Hamrick
Bone fractures in older adults are often preceded by a loss of muscle mass and strength. Likewise, bone loss with prolonged bed rest, spinal cord injury, or with exposure to microgravity is also preceded by a rapid loss of muscle mass. Recent studies using animal models in the setting of hindlimb unloading or botulinum toxin (Botox) injection also reveal that muscle loss can induce bone loss. Moreover, muscle-derived factors such as irisin and leptin can inhibit bone loss with unloading, and knockout of catabolic factors in muscle such as the ubiquitin ligase Murf1 or the myokine myostatin can reduce osteoclastogenesis...
May 18, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29775407/effect-of-healthy-aging-and-sex-on-middle-cerebral-artery-blood-velocity-dynamics-during-moderate-intensity-exercise
#2
Jaimie L Ward, Jesse C Craig, Yumei Liu, Eric Dennis Vidoni, Rebecca Malesky, David C Poole, Sandra A Billinger
Cerebral blood flow (CBF) velocity measured in the middle cerebral artery (MCAV ) increases with finite kinetics during moderate intensity exercise and both the amplitude and dynamics of the response provide invaluable insights into the controlling mechanisms. The MCAV response following exercise onset is well fit to an exponential model in young individuals but remains to be characterized in their older counterparts. The responsiveness of vasomotor control degrades with advancing age, especially in skeletal muscle, and we tested the hypothesis that older subjects would evince a slower and reduced MCAV response to exercise...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29773516/lymphoedema-management-to-prevent-acute-dermatolymphangioadenitis-in-podoconiosis-in-northern-ethiopia-golbet-a-pragmatic-randomised-controlled-trial
#3
Henok Negussie, Meseret Molla, Moses Ngari, James A Berkley, Esther Kivaya, Patricia Njuguna, Greg Fegan, Abreham Tamiru, Abebe Kelemework, Trudie Lang, Melanie J Newport, Andy McKay, Fikre Enquoselassie, Gail Davey
BACKGROUND: Podoconiosis (also known as endemic, non-filarial elephantiasis) affects about 4 million subsistence farmers in tropical Africa. Poor awareness of the condition and inadequate evidence for the efficacy of treatment mean that no government in an endemic country yet offers lymphoedema management for patients with podoconiosis. Among patients with filarial lymphoedema, trials suggest that limb care is effective in reducing the most disabling sequelae: episodes of acute dermatolymphangioadenitis...
May 14, 2018: Lancet Global Health
https://www.readbyqxmd.com/read/29768349/comparison-of-multiple-interventions-for-older-adults-with-alzheimer-disease-or-mild-cognitive-impairment-a-prisma-compliant-network-meta-analysis
#4
Jing-Hong Liang, Yong Xu, Lu Lin, Rui-Xia Jia, Hong-Bo Zhang, Lei Hang
BACKGROUND: The increasing prevalence of Alzheimer disease (AD) emphasizes the need for effective treatments. Both pharmacological therapies such as nutrition therapy (NT) and nonpharmacologic therapies including traditional treatment or personalized treatment (e.g., physical exercise, music therapy, computerized cognitive training) have been approved for the treatment of AD or mild cognitive impairment (MCI) in numerous areas. METHODS: The aim of this study was to compare 4 types of interventions, physical exercise (PE), music therapy (MT), computerized cognitive training (CCT), and NT, in older adults with mild to moderate AD or MCI and identify the most effective intervention for their cognitive function...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29768089/a-commentary-on-effects-of-regular-physical-activity-on-the-cognitive-performance-of-type-2-diabetic-patients-a-systematic-review-by-podolski-et-al-metab-syndr-relat-disord-2017-15-481-493
#5
Erin M Shellington, Sonja M Reichert, Robert J Petrella
Type 2 diabetes mellitus (T2DM) imparts an increased risk for cognitive decline, specifically executive function, which is important to maintain for diabetes self-management. There is evidence to suggest that exercise improves cognition in healthy older adults; however, the literature in adults with T2DM is lacking. This commentary is in complement to Podolski et al.'s systematic review evaluating the effects of physical activity on cognitive function in adults with T2DM. We have included eight additional studies and further highlight their conclusions on the heterogeneity of the literature thus far...
May 16, 2018: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29768055/age-related-effect-of-aerobic-exercise-training-on-antioxidant-and-oxidative-markers-in-the-liver-challenged-by-doxorubicin-in-rats
#6
Mehdi Ahmadian, Valiollah Dabidi Roshan, Anthony S Leicht
The aims of the current study were to investigate the oxidant and antioxidant status of liver tissue challenged by doxorubicin and to examine the possible protective effects of aerobic exercise on doxorubicin-induced oxidative stress. Seventy-two rats were divided into three age groups (Young, Adult, and Elderly) with three treatment subgroups consisting of eight rats per age group: doxorubicin, aerobic exercise + doxorubicin, and aerobic exercise + saline. The experimental groups performed regular treadmill running for 3 weeks...
May 16, 2018: Free Radical Research
https://www.readbyqxmd.com/read/29766628/health-professional-student-education-related-to-the-prevention-of-falls-in-older-people-a-survey-of-universities-in-australia-and-new-zealand
#7
Esther Vance, Melanie K Farlie, Bridget Kool, Anne Tiedemann, Anna L Hatton, Catherine Sherrington, Daina L Sturnieks
OBJECTIVE: To determine the amount and nature of health professional education related to fall prevention for older adults in Australian and New Zealand universities. METHODS: Universities offering medicine, nursing and allied health courses were invited to complete an online survey enquiring about fall prevention course-related information: topics; delivery mode; and time dedicated. RESULTS: One hundred and five respondents, 11 disciplines and 43 universities completed the survey...
May 15, 2018: Australasian Journal on Ageing
https://www.readbyqxmd.com/read/29763256/exercise-alone-and-various-combinations-of-interventions-reduce-the-risk-of-injurious-falls-in-older-adults
#8
David Slawson
No abstract text is available yet for this article.
May 1, 2018: American Family Physician
https://www.readbyqxmd.com/read/29762655/longitudinal-physical-activity-patterns-among-older-adults-a-latent-transition-analysis
#9
Stephen J Mooney, Spruha Joshi, Magdalena Cerdá, Gary J Kennedy, John R Beard, Andrew G Rundle
Most epidemiologic studies of physical activity measure either total energy expenditure or engagement in a single activity type, such as walking. These approaches may gloss over important nuances in activity patterns. We performed a latent transition analysis to identify patterns of activity types as well as neighborhood and individual determinants of changes in those activity patterns over two years in a cohort of 2,023 older adult residents of New York City, NY, surveyed between 2011 and 2013. We identified seven latent classes: 1) Mostly Inactive, 2) Walking, 3) Exercise, 4) Household Activities and Walking, 5) Household Activities and Exercise, 6) Gardening and Household Activities, and 7) Gardening, Household Activities, and Exercise...
May 14, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29761654/low-load-resistance-exercise-during-inactivity-is-associated-with-greater-fibre-area-and-satellite-cell-expression-in-older-skeletal-muscle
#10
Daniel R Moore, Ryan P Kelly, Michaela C Devries, Tyler A Churchward-Venne, Stuart M Phillips, Gianni Parise, Adam P Johnston
BACKGROUND: Age-related sarcopenia is accelerated by physical inactivity. Low-load resistance exercise (LLRE) counters inactivity-induced muscle atrophy in older adults, but changes in muscle fibre morphology are unstudied. We aimed to determine the impact of LLRE during short-term inactivity (step-reduction) on muscle fibre size and capillarity as well as satellite cell (SC) content in older skeletal muscle. METHODS: Fourteen older (~71 years) male adults underwent 14 days of step reduction (<1500 steps/day) while performing six sessions of LLRE (~30% maximal strength) with one leg (SR + EX) while the contralateral leg served as an untrained control (SR)...
May 14, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29761133/the-impact-of-blood-pressure-dipping-status-on-cognition-mobility-and-cardiovascular-health-in-older-adults-following-an-exercise-program
#11
Narlon C Boa Sorte Silva, Michael A Gregory, Dawn P Gill, Cheri L McGowan, Robert J Petrella
Objectives: To determine whether a dual-task gait and aerobic exercise intervention differentially impacted older adults with normal blood pressure (BP) dipping status (dippers) compared to those with nondipping status (nondippers). Methods: This study was a secondary analysis involving participants (mean age = 70.3 years, 61% women) who attended a laboratory-based exercise intervention over a 6-month period (40 min/day and 3 days/week). Participants were assessed in measures of cognition, mobility, and cardiovascular health at baseline, 3, 6, and 12 months (after a 6-month no-contact follow-up)...
January 2018: Gerontology & Geriatric Medicine
https://www.readbyqxmd.com/read/29761054/is-high-intensity-interval-cycling-feasible-and-more-beneficial-than-continuous-cycling-for-knee-osteoarthritic-patients-results-of-a-randomised-control-feasibility-trial
#12
Justin W Keogh, Josephine Grigg, Christopher J Vertullo
Background: Knee osteoarthritis (OA) patients often suffer joint pain and stiffness, which contributes to negative changes in body composition, strength, physical performance (function), physical activity and health-related quality of life. To reduce these symptoms and side effects of knee OA, moderate-intensity continuous training (MICT) cycling is often recommended. While resistance training is considered the optimal form of training to improve sarcopenic outcomes, it imposes higher joint loads and requires supervision, either initially or continuously by trained exercise professionals...
2018: PeerJ
https://www.readbyqxmd.com/read/29758971/effects-of-dancesport-on-walking-balance-and-standing-balance-among-the-elderly
#13
Jeehoon Sohn, Sung-Ha Park, Sukwon Kim
BACKGROUND: Dancesport is a popular activity among older adults who look for fun and fitness in Korea. Studies reported positive sociological and psychological effects of dancesport. But, little studies were performed to evaluate the effects of dancesport on balance performances. OBJECTIVE: The objective of the present study was to evaluate the effects of dancesport for 15 weeks on walking balance and standing balance of older adults. METHODS: Older adults regularly participated in the dancesport program 3 times a week for 15 weeks...
May 4, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29758940/self-reported-physical-activity-is-associated-with-tau-burden-measured-by-positron-emission-tomography
#14
Belinda M Brown, Stephanie R Rainey-Smith, Vincent Dore, Jeremiah J Peiffer, Samantha C Burnham, Simon M Laws, Kevin Taddei, David Ames, Colin L Masters, Christopher C Rowe, Ralph N Martins, Victor L Villemagne
Numerous animal studies have reported exercise reduces the accumulation of Alzheimer's disease pathology, including amyloid-β (Aβ) and tau. Furthermore, we previously reported a relationship between higher levels of physical activity (PA) and lower brain Aβ burden in a human population. The recent advent of tau positron emission tomography (PET) tracers enables us to extend our investigations into the evaluation of the relationship between PA and brain tau burden. Utilizing data from the Australian Imaging, Biomarkers and Lifestyle (AIBL) study, we have examined the cross-sectional relationship between habitual PA and PET-quantified tau burden...
May 11, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29758349/habitual-aerobic-exercise-gene-apoa5-named-rs662799-snp-and-response-of-blood-lipid-and-lipoprotein-phenotypes-among-older-chinese-adult
#15
Xiangyun Liu, Guoyuan Huang, Zhanbin Niu, Yuqin Wei, Ru Wang
BACKGROUND: The genetic component of dyslipidemia has been studied in adults but little in older population. It is remains unknown regarding influence and interaction of APOA5 gene single nucleotide polymorphism (SNP) and habitual aerobic exercise (HAE) on changes of blood lipids and lipoprotein phenotypes in older Chinese adults. METHODS: Four-hundred-twenty-three old Chinese individuals with HAE were divided into hyperlipidemia and normal groups. We genotyped polymorphic loci using matrix assisted laser desorption ionization time of flight mass spectrometry detection technology (MALDI-TOF)...
May 11, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29757826/physical-activity-levels-predict-exercise-induced-hypoalgesia-in-older-adults
#16
Thomas Ohlman, Leah Miller, Keith E Naugle, Kelly M Naugle
Prior research indicates that older adults exhibit a deficient capacity to activate multiple pain inhibitory mechanisms, including pain inhibition after acute exercise termed exercise-induced hypoalgesia (EIH). The influence of physical activity levels and psychological processes on EIH in older adults remains unclear. PURPOSE: This study examined potential psychological and physical activity predictors of the magnitude of EIH following submaximal isometric exercise in healthy older adult men and women...
May 4, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29754811/integrated-exposure-therapy-and-exercise-reduces-fear-of-falling-and-avoidance-in-older-adults-a-randomized-pilot-study
#17
Julie Loebach Wetherell, Emily S Bower, Kristen Johnson, Douglas G Chang, Samuel R Ward, Andrew J Petkus
OBJECTIVES: To evaluate the safety and acceptability of a novel 8-week intervention integrating exercise, exposure therapy, cognitive restructuring, and a home safety evaluation, conducted by a physical therapist, in reducing fear of falling and activity avoidance. To collect preliminary evidence of efficacy. DESIGN: Randomized pilot study comparing the intervention to time- and attention-equivalent fall prevention education. SETTING: Participants' homes...
April 12, 2018: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29753804/the-association-between-serum-vitamin-d-level-and-cognitive-function-in-older-adults-cooper-center-longitudinal-study
#18
Andjelka Pavlovic, Katelyn Abel, Carolyn E Barlow, Stephen W Farrell, Myron Weiner, Laura F DeFina
Low blood level of vitamin D and low physical activity have been linked to the development of cognitive impairment in older adults. The purpose of the present study was to examine the relationship between serum vitamin D and cognition as measured via the Montreal Cognitive Assessment (MoCA) in a healthy, older population. The study sample consisted of 4358 patients from the Cooper Clinic in Dallas, TX. All participants underwent a maximal graded exercise test to determine cardiorespiratory fitness (CRF). Cognitive impairment was defined as a MoCA score <25...
May 10, 2018: Preventive Medicine
https://www.readbyqxmd.com/read/29753512/long-term-outcome-of-preadolescents-adolescents-and-adult-patients-undergoing-total-cavopulmonary-connection
#19
Masamichi Ono, Elisabeth Beran, Melchior Burri, Julie Cleuziou, Jelena Pabst von Ohain, Martina Strbad, Christoph Röhlig, Alfred Hager, Jürgen Hörer, Christian Schreiber, Rüdiger Lange
OBJECTIVES: Patients with a single ventricle infrequently undergo total cavopulmonary connection as preadolescents, adolescents, or adults. The purpose of this study was to clarify the characteristics of this cohort and to analyze the factors influencing outcomes. METHODS: Between 1994 and 2015, 50 of 460 patients underwent total cavopulmonary connection as preadolescents, adolescents, or adults (group A). The patients' characteristics and operative results were compared with those of the remaining 410 patients aged less than 9 years who underwent total cavopulmonary connection (group B)...
April 12, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29750251/effect-of-aerobic-exercise-training-and-essential-amino-acid-supplementation-for-24-weeks-on-physical-function-body-composition-and-muscle-metabolism-in-healthy-independent-older-adults-a-randomized-clinical-trial
#20
Melissa M Markofski, Kristofer Jennings, Kyle L Timmerman, Jared M Dickinson, Christopher S Fry, Michael S Borack, Paul T Reidy, Rachel R Deer, Amanda Randolph, Blake B Rasmussen, Elena Volpi
Background: Essential amino acids (EAA) and aerobic exercise (AE) acutely and independently stimulate skeletal muscle protein anabolism in older adults. Objective: In this Phase 1, double blind, placebo controlled, randomized clinical trial, we determined if chronic EAA supplementation, AE training, or a combination of the two interventions could improve muscle mass and function by stimulating muscle protein synthesis. Methods: We phone screened 971, enrolled 109, and randomized 50 independent, low-active, non-frail, non-diabetic older adults (age 72±1 yrs)...
May 10, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
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