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https://www.readbyqxmd.com/read/28529487/cardiac-baroreflex-variability-and-resetting-during-sustained-mild-effort
#1
Mair Zamir, Mark B Badrov, T Dylan Olver, J Kevin Shoemaker
This exploratory study assessed the pattern of closed-loop baroreflex resetting using multi-logistic-curve analysis. Operating point gain and ranges of RR-interval (RRI) and systolic blood pressure (SBP) are derived to examine how these relate to sympathetic activation. Sustained low-intensity isometric handgrip exercise, with a period of post-exercise circulatory occlusion (PECO), provided a model to study baroreflex resetting because the progression toward fatigue at constant tension induces a continuous increase in volitional contribution to neuro-cardiovascular control...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28528376/isometric-handgrip-as-an-adjunct-for-blood-pressure-control-a-primer-for-clinicians
#2
REVIEW
Cheri L McGowan, David N Proctor, Ian Swaine, Robert D Brook, Elizabeth A Jackson, Phillip D Levy
Considered a global health crisis by the World Health Organization, hypertension (HTN) is the leading risk factor for death and disability. The majority of treated patients do not attain evidence-based clinical targets, which increases the risk of potentially fatal complications. HTN is the most common chronic condition seen in primary care; thus, implementing therapies that lower and maintain BP to within-target ranges is of tremendous public health importance. Isometric handgrip (IHG) training is a simple intervention endorsed by the American Heart Association as a potential adjuvant BP-lowering treatment...
June 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28528340/evaluation-of-hypocaloric-diet-with-protein-supplementation-in-middle-aged-sarcopenic-obese-women-a-pilot-study
#3
Rosa Sammarco, Maurizio Marra, Maria Luisa Di Guglielmo, Marianna Naccarato, Franco Contaldo, Eleonora Poggiogalle, Lorenzo Maria Donini, Fabrizio Pasanisi
OBJECTIVE: The aim of this study was to evaluate the efficacy of a nutritional program, which is characterized by a different modulation of proteins, in adult patients with sarcopenic obesity. METHODS: We studied 18 obese women aged 41-74 years. Obesity was diagnosed as fat mass > 34.8% and sarcopenia was defined when lean body mass was <90% of the subject's ideal fat free mass. All subjects were randomly assigned to different nutritional interventions: Hypocaloric diet plus placebo (A) and hypocaloric high-protein diet (1...
May 20, 2017: Obesity Facts
https://www.readbyqxmd.com/read/28527267/assessment-of-factors-associated-with-functional-status-in-60-years-old-and-older-adults-in-bogot%C3%A3-colombia
#4
Carlos Cano-Gutiérrez, Miguel Germán Borda, Carlos Reyes-Ortiz, Antonio J Arciniegas, Rafael Samper-Ternent
INTRODUCTION: Functional impairment produces a wide range of negative effects such as difficulty in mobility, social isolation, decreased quality of life, disability and institutionalization. Thus, functional status measurement is a marker of social wellbeing. OBJECTIVE: To determine and characterize the socio-demographic factors and health conditions related to functional impairment in older adults in Bogotá, Colombia. MATERIALS AND METHODS: Data was collected from the SABE Bogotá Study...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527135/association-between-muscle-function-cognitive-state-depression-symptoms-and-quality-of-life-of-older-people-evidence-from-clinical-practice
#5
Salah Gariballa, Awad Alessa
BACKGROUND: Although low muscle function/strength is an important predictor of poor clinical outcome in older patients, information on its impact on mental health in clinical practice is still lacking. AIMS: The aim of this report is to measure the impact of low muscle function measured by handgrip strength on mental health of older people during both acute illness and recovery. METHODS: Four hundred and thirty-two randomly selected hospitalized older patients had their baseline demographic and clinical characteristics assessed within 72 h of admission, at 6 weeks and at 6 months...
May 19, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28524706/cachexia-stage-patient-generated-subjective-global-assessment-phase-angle-and-handgrip-strength-in-patients-with-gastrointestinal-cancer
#6
Gislaine Aparecida Ozorio, Katia Barão, Nora Manoukian Forones
The aim of this study was to correlate patients with gastrointestinal cancer, classified according to different stages of cancer cachexia (SCC) as proposed by Fearon, with nutritional assessment tools such as PG-SGA, phase angle (PA), and handgrip strength. One hundred one patients with a mean age of 61.8 ± 12.8 yr, with 58.4% being men were included. 32.6% were malnourished according to the body mass index (BMI). A severe or moderate malnutrition had been diagnosed in 63.3% when assessed using the PG-SGA, 60...
May 19, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28523252/prevalence-of-sarcopenia-in-the-world-a-systematic-review-and-meta-analysis-of-general-population-studies
#7
REVIEW
Gita Shafiee, Abbasali Keshtkar, Akbar Soltani, Zeinab Ahadi, Bagher Larijani, Ramin Heshmat
BACKGROUND: Sarcopenia, an age-related decline in muscle mass and function, is one of the most important health problems in elderly with a high rate of adverse outcomes. However, several studies have investigated the prevalence of sarcopenia in the world, the results have been inconsistent. The current systematic review and meta- analysis study was conducted to estimate the overall prevalence of sarcopenia in both genders in different regions of the world. METHODS: Electronic databases, including MEDLINE (via PubMed), SCOPUS and Web of Science were searched between January 2009 and December 2016...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28515070/even-mealtime-distribution-of-protein-intake-is-associated-with-greater-muscle-strength-but-not-with-3-y-physical-function-decline-in-free-living-older-adults-the-quebec-longitudinal-study-on-nutrition-as-a-determinant-of-successful-aging-nuage-study
#8
Samaneh Farsijani, Hélène Payette, José A Morais, Bryna Shatenstein, Pierrette Gaudreau, Stéphanie Chevalier
Background: Functional status declines with aging, thus impeding autonomy. Recently, a more even mealtime distribution of dietary protein was positively associated with muscle mass, but the relation of this distribution to physical performance remains unknown.Objective: We examined the relation between mealtime protein-intake distribution and physical performance and its 3-y decline in community-dwelling older adults.Design: Three-year follow-up data from 827 men and 914 women (67-84 y) in the longitudinal study on nutrition and aging [Quebec longitudinal study on Nutrition as a Determinant of Successful Aging (NuAge study); Quebec, Canada] were analyzed...
May 17, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28512845/work-retirement-and-muscle-strength-loss-in-old-age
#9
Marco Bertoni, Stefania Maggi, Guglielmo Weber
Reduced muscle strength is an accurate predictor of functional limitations, disability, and mortality. Hence, understanding which socio-economic factors contribute to preserve muscle strength in old age is central to the design of social policies that help reducing these health risks. Using data on handgrip strength collected by the Survey of Health, Ageing and Retirement in Europe for the population of Europeans aged 50+ and the exogenous variation in pension eligibility age across countries over time, we estimate that the retirement transition has a short-term positive causal effect on muscle strength...
May 17, 2017: Health Economics
https://www.readbyqxmd.com/read/28506016/comparison-of-the-strength-endurance-parameters-for-the-baltimore-therapeutic-equipment-bte-simulator-ii-and-the-jamar-handgrip-dynamometer
#10
Edwin Myers, Robert Trsicari
BACKGROUND: The purpose of this study was to provide evidence regarding the Baltimore Therapeutic Equipment (BTE) Work Simulator II's recommended grip endurance protocol. The grip endurance protocol of the BTE Simulator II has never been validated, though it has been used often for the rehabilitation of work-related injuries and other occupational dysfunctions. Without validation, the grip endurance protocol may or may not be providing skilled clinicians with appropriate evaluation results...
May 6, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28501109/sarcopenia-a-new-predictor-of-postoperative-complications-for-elderly-gastric-cancer-patients-who-underwent-radical-gastrectomy
#11
Chong-Jun Zhou, Feng-Min Zhang, Fei-Yu Zhang, Zhen Yu, Xiao-Lei Chen, Xian Shen, Cheng-Le Zhuang, Xiao-Xi Chen
BACKGROUND: A geriatric assessment is needed to identify high-risk elderly patients with gastric cancer. However, the current geriatric assessment has been considered to be either time-consuming or subjective. The present study aimed to investigate the predictive effect of sarcopenia on the postoperative complications for elderly patients who underwent radical gastrectomy. MATERIALS AND METHODS: We conducted a prospective study of patients who underwent radical gastrectomy from August 2014 to December 2015...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28499192/handgrip-strength-is-associated-with-anthropometrics-variables-and-sex-in-preschool-children-a-cross-sectional-study-providing-reference-values
#12
Pedro Ángel Latorre Román, David Mora López, Beatriz Berrios Aguayo, Alejandro Robles Fuentes, Felipe García-Pinillos, Melchor Martínez Redondo
OBJECTIVE: The purpose of this study was to examine the influence of age, sex and anthropometric variables in handgrip strength and to determine norm-referenced values for preschool children. DESIGN: Cross-sectional study. SETTING: Schools. PARTICIPANTS: A total of 1215 children, aged 3-6 years (590 girls and 625 boys). INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: Handgrip strength (HS), measured by the CAMRY hydraulic hand dynamometer (EH101; Camry, Guangdong Province, China)...
April 5, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28488824/effects-of-verbal-encouragement-on-force-and-electromyographic-activations-during-handgrip-exercise
#13
Chama Belkhiria, Giovanni DE Marco, Tarak Driss
BACKGROUND: The aim of the present study was to examine the effects of verbal encouragement on isometric force and associated electromyographic (EMG) parameters during a handgrip task. METHODS: Twenty-three participants (12 women and 11 men) performed maximal voluntary isometric handgrip contractions following three conditions: 1) verbal encouragement (VE) condition: participants executed isometric contractions while being verbally encouraged. 2) non verbal encouragement (nVE) condition: the same starting and stopping signal but without encouragement...
May 9, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28484505/effect-of-taichi-softball-on-function-related-outcomes-in-older-adults-a-randomized-control-trial
#14
Lin Lou, Liye Zou, Qun Fang, Huiru Wang, Yang Liu, Zuguo Tian, Yunpeng Han
The purpose of this present study was to examine the effect of Taichi softball (TCSB) on physical function in Chinese older adults. Eighty Chinese older adults were randomly assigned into either an experimental group experiencing four 90-minute TCSB sessions weekly for seven consecutive weeks or a control group. At baseline and 7 weeks later, all participants were asked to perform physical functional tests for both lower and upper limbs. Multiple separate Analyses of Variance (ANOVA) with repeated measures were applied to evaluate the effects of TCSB on function-related outcomes between baseline and postintervention in the two groups...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28483427/association-between-muscle-function-and-body-composition-vitamin-d-status-and-blood-glucose-in-postmenopausal-women-with-type-2-diabetes
#15
Claudio M Bentes, Pablo B Costa, Monique Resende, Humberto L Miranda, Carolina M V Silva, Claudia C Netto, Lizanka P F Marinheiro
AIMS: The aim of this study was to examine the association between muscle function, and body composition, vitamin D status, and blood glucose in post-menopausal women with type 2 diabetes (T2D). METHODS: Forty post-menopausal women (62.48±7.67years; 154.6±5.11cm; 73.93±15.43kg; 31.13±5.82 BMI kg/m(2)) with a diagnosis of T2D participated in this cross-sectional study. The patients performed fasting blood sample exams, anthropometrics assessments, body composition, and clinical exams...
April 28, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28479964/relationship-between-academic-performance-with-physical-psychosocial-lifestyle-and-sociodemographic-factors-in-female-undergraduate-students
#16
Marie-Maude Dubuc, Mylène Aubertin-Leheudre, Antony D Karelis
BACKGROUND: The purpose of this study was to investigate the relationship between physical, psychosocial, lifestyle and sociodemographic factors with academic performance in female undergraduate students. METHODS: One hundred undergraduate female students from the Faculty of Science at the University of Quebec at Montreal participated in this study (mean age = 24.4 ± 4.6 years old). All participants provided their university transcript and had to complete at least 45 course credits from their bachelor degree...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28477375/oral-l-tyrosine-supplementation-augments-the-vasoconstriction-response-to-whole-body-cooling-in-older-adults
#17
James A Lang, Kevin A Smaller
L-tyrosine is the primary substrate for noradrenaline biosynthesis within sympathetic axon terminals. Under stressful conditions requiring increased catecholamine production, axonal L-tyrosine concentration may limit the full expression of the sympathetic effector response and this may be particularly evident in older adults. We hypothesize that oral L-tyrosine supplementation will increase the sympathetic response to whole-body cooling and muscle metaboreflex activation. In a randomized, double-blind design, eleven young (Y = 24 ± 1 years) and eleven older (O = 68 ± 4 years) participants ingested either 150 mg kg(-1) of L-tyrosine or placebo prior to commencing 30 minutes of whole-body cooling to induce a gradual decline in skin temperature from 34 to 30...
May 5, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28476923/acute-beetroot-juice-supplementation-on-sympathetic-nerve-activity-a-randomized-double-blind-placebo-controlled-proof-of-concept-study
#18
Karambir Notay, Anthony V Incognito, Philip J Millar
Acute dietary nitrate supplementation reduces resting blood pressure in healthy normotensives. This response is attributed to increased nitric oxide bioavailability and peripheral vasodilation, though nitric oxide also tonically inhibits central sympathetic outflow. We hypothesized that acute dietary nitrate (NO3(-)) supplementation using beetroot (BR) juice would reduce blood pressure and muscle sympathetic nerve activity (MSNA) at rest and during exercise. Fourteen participants (7 men, 25±10 years) underwent blood pressure and MSNA measurements before and after (165-180 minutes) ingestion of 70ml high-nitrate (~6...
May 5, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28476584/validity-of-the-international-fitness-scale-ifis-in-older-adults
#19
Eugenio Merellano-Navarro, Daniel Collado-Mateo, Javier García-Rubio, Narcís Gusi, Pedro R Olivares
OBJECTIVE: To validate the "International Fitness Scale" (IFIS) in older adults. METHODS: Firstly, cognitive interviews were performed to ensure that the questionnaire was comprehensive for older Chilean adults. After that, a transversal study of 401 institutionalized and non-institutionalized older adults from Maule region in Chile was conducted. A battery of validated fitness tests for this population was used in order to compare the responses obtained in the IFIS with the objectively measured fitness performance (back scratch, chair sit-and-reach, handgrip, 30-s chair stand, timed up-and-go and 6-min walking)...
May 2, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28474000/association-of-fatigue-with-sarcopenia-and-its-elements-a-secondary-analysis-of-sabe-bogot%C3%A3
#20
Daniela Patino-Hernandez, David Gabriel David-Pardo, Miguel Germán Borda, Mario Ulises Pérez-Zepeda, Carlos Cano-Gutiérrez
Objective: Sarcopenia, fatigue, and depression are associated with higher mortality rates and adverse outcomes in the aging population. Understanding the association among clinical variables, mainly symptoms, is important for screening and appropriately managing these conditions. The aim of this article is to evaluate the association among sarcopenia and its elements with depression and fatigue. Method: We used cross-sectional data from 2012 SABE (Salud, Bienestar y Envejecimiento)-Bogotá study, which included 2,000 participants of ages ≥60 years...
January 2017: Gerontology & Geriatric Medicine
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