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Jian Cui, Cheryl A Blaha, Lawrence I Sinoway
The effects of whole-body heat stress on sympathetic and cardiovascular responses to stimulation of muscle metaboreceptors and mechanoreceptors remains unclear. We examined the muscle sympathetic nerve activity (MSNA), blood pressure and heart rate in 14 young healthy subjects during fatiguing isometric handgrip exercise, post exercise circulatory occlusion (PECO), and passive muscle stretch during PECO. The protocol was performed under normothermic and whole-body heat stress (increase internal temperature ~0...
October 7, 2016: Journal of Applied Physiology
Suzy L Wong
BACKGROUND: Grip strength is a measure of overall muscular strength and has been associated with disability, morbidity and mortality. Normative data are used to interpret an individual's grip strength measurements, but Canadian reference values are not available for a wide age range. DATA AND METHODS: The data pertain to 11,108 respondents aged 6 to 79 to the 2007-to-2013 Canadian Health Measures Survey, whose right-hand and left-hand grip strength were measured with a handgrip dynamometer...
October 19, 2016: Health Reports
Francesca de Blasio, Francesco de Blasio, Giulia Miracco Berlingieri, Andrea Bianco, Marta La Greca, Frits M E Franssen, Luca Scalfi
BACKGROUND: Multifrequency bioelectrical impedance analysis (MF-BIA) is a technique that measures body impedance (Z) at different frequencies (5, 10, 50, 100, and 250 kHz). Body composition may be estimated using empirical equations, which include BIA variables or, alternatively, raw BIA data may provide direct information on water distribution and muscle quality. OBJECTIVES: To compare raw MF-BIA data between COPD patients and controls and to study their relationship with respiratory and functional parameters in COPD patients...
2016: International Journal of Chronic Obstructive Pulmonary Disease
I C Álvarez-Gallardo, A Carbonell-Baeza, V Segura-Jiménez, A Soriano-Maldonado, T Intemann, V A Aparicio, F Estévez-López, D Camiletti-Moirón, M Herrador-Colmenero, J R Ruiz, M Delgado-Fernández, F B Ortega
We aimed (1) to report age-specific physical fitness levels in people with fibromyalgia of a representative sample from Andalusia; and (2) to compare the fitness levels of people with fibromyalgia with non-fibromyalgia controls. This cross-sectional study included 468 (21 men) patients with fibromyalgia and 360 (55 men) controls. The fibromyalgia sample was geographically representative from southern Spain. Physical fitness was assessed with the Senior Fitness Test battery plus the handgrip test. We applied the Generalized Additive Model for Location, Scale and Shape to calculate percentile curves for women and fitted mean curves using a linear regression for men...
October 17, 2016: Scandinavian Journal of Medicine & Science in Sports
Irene Fleur Kramer, Lex B Verdijk, Henrike M Hamer, Sjors Verlaan, Yvette C Luiking, Imre W K Kouw, Joan M Senden, Janneau van Kranenburg, Annemarie P Gijsen, Jörgen Bierau, Martijn Poeze, Luc J C van Loon
BACKGROUND: Studying the muscle protein synthetic response to food intake in elderly is important, as it aids the development of interventions to combat sarcopenia. Although sarcopenic elderly are the target group for many of these nutritional interventions, no studies have assessed basal or post-prandial muscle protein synthesis rates in this population. OBJECTIVE: To assess the basal and post-prandial muscle protein synthesis rates between healthy and sarcopenic older men...
September 29, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Kelly R Laurson, Pedro F Saint-Maurice, Gregory J Welk, Joey C Eisenmann
The purpose of the study was to describe current levels of musculoskeletal fitness (MSF) in U.S. youth by creating nationally representative age- and sex-specific growth curves for handgrip strength (including relative and allometrically scaled handgrip), modified pull-ups, and the plank test. Participants in the National Youth Fitness Survey (n = 1453) were tested on MSF, aerobic capacity (via submaximal treadmill test), and body composition (body mass index [BMI], waist circumference, and skinfolds). Using LMS regression, age- and sex-specific smoothed percentile curves of MSF were created and existing percentiles were used to assign age- and sex-specific z-scores for aerobic capacity and body composition...
October 6, 2016: Journal of Strength and Conditioning Research
Daisuke Murai, Satoshi Yamada, Taichi Hayashi, Kazunori Okada, Hisao Nishino, Masahiro Nakabachi, Shinobu Yokoyama, Ayumu Abe, Ayako Ichikawa, Kota Ono, Sanae Kaga, Hiroyuki Iwano, Taisei Mikami, Hiroyuki Tsutsui
Whether and how left ventricular (LV) strain and strain rate correlate with wall stress is not known. Furthermore, it is not determined whether strain or strain rate is less dependent on the afterload. In 41 healthy young adults, LV global peak strain and systolic peak strain rate in the longitudinal direction (LS and LSR, respectively) and circumferential direction (CS and CSR, respectively) were measured layer-specifically using speckle tracking echocardiography (STE) before and during a handgrip exercise...
October 12, 2016: Heart and Vessels
Shu-Chun Chuang, Hui-Ling Chen, Wei-Ting Tseng, I-Chien Wu, Chih-Cheng Hsu, Hsing-Yi Chang, Yii-Der Ida Chen, Marion M Lee, Kiang Liu, Chao Agnes Hsiung
BACKGROUND: A previous study indicated that 31% of the elderly in Taiwan have a vitamin D deficiency. Vitamin D adequacy has been associated with physical performance in the elderly. OBJECTIVES: The first aim of the current study was to identify the determinants for vitamin D deficiency. The second aim was to evaluate the association between vitamin D status and physical performance. DESIGN: A total of 5664 community-dwelling participants aged ≥55 y were recruited since 2008...
October 12, 2016: American Journal of Clinical Nutrition
Nicola Veronese, Brendon Stubbs, Caterina Trevisan, Francesco Bolzetta, Marina De Rui, Stefania Maggi, Leonardo Sartori, Estella Musacchio, Sabina Zambon, Egle Perissinotto, Marianna Noale, Gaetano Crepaldi, Enzo Manzato, Giuseppe Sergi
OBJECTIVES: Hyperuricemia (HU) is frequent in older people and associated with several medical conditions. The relationship between HU and physical performance is limited. We aimed to investigate the association between HU and physical performance over a 4.4 year follow-up in the elderly. METHODS: 1,904 community-dwelling older participants were followed for a mean of 4.4 years. HU at baseline was defined using serum uric acid (SUA) concentrations ≥ 6 and 7 mg/dl for women and men, respectively...
October 9, 2016: Arthritis Care & Research
Konstantina Dipla, Areti Triantafyllou, Iris Grigoriadou, Evangelia Kintiraki, Georgios A Triantafyllou, Pavlos Poulios, Ioannis S Vrabas, Andreas Zafeiridis, Stella Douma, Dimitrios G Goulis
AIMS/HYPOTHESIS: Gestational diabetes mellitus (GDM) is a risk factor for the development of endothelial dysfunction and cardiovascular disease. However, in vivo microvascular endothelial function in GDM has not been investigated. This study aimed to examine, using near-infrared spectroscopy (NIRS), whether: (1) there are differences in microvascular reactivity and skeletal muscle oxygen consumption (m[Formula: see text]) at rest and during exercise between GDM and uncomplicated pregnancies; and (2) there is an association of NIRS indices with macrovascular function and cardiovascular disease risk factors...
October 8, 2016: Diabetologia
Robinson Ramírez-Vélez, Alejandra Tordecilla-Sanders, Jorge Enrique Correa-Bautista, Mark D Peterson, Antonio Garcia-Hermoso
OBJECTIVE: To evaluate the association between handgrip strength and ideal cardiovascular health (CVH) in Colombian children and adolescents. STUDY DESIGN: During the 2014-2015 school years, we examined a cross-sectional component of the FUPRECOL (Association for Muscular Strength with Early Manifestation of Cardiovascular Disease Risk Factors among Colombian Children and Adolescents) study. Participants included 1199 (n = 627 boys) youths from Bogota (Colombia)...
October 5, 2016: Journal of Pediatrics
Wenwen Zhai, Xuedong Wang, Yulan Rong, Min Li, Hong Wang
BACKGROUND: Ultrasound guidance has reduced the amount of local anesthetics to achieve a successful block. Previous studies of the relationship between the volume or concentration of local anesthetics and the effects of the block were based on relatively high doses of local anesthetics. We tested the hypothesis that providing low dose of ropivacaine at three combinations of volumes and concentrations for ultrasound-guided interscalene brachial plexus block would produce different effects in the aspect of onset time, pain control and the incidence of side effects...
September 30, 2016: BMC Anesthesiology
J L Pedersen, P U Pedersen, E M Damsgaard
OBJECTIVES: To compare the effects of two nutritional follow-up interventions with regard to preventing short-term deterioration in ADL, and to compare their effects on physical function, emotional health, and health-related quality of life. DESIGN: Randomized clinical trial with two intervention groups and one control group, and a follow-up period of eight weeks. SETTING: Intervention in the participants' homes after discharge from hospital...
2016: Journal of Nutrition, Health & Aging
Nitin Rangrao Gaikwad, Sudhir Jagdishprasad Gupta, Amol Rajendra Samarth, Tushar Hiralal Sankalecha
BACKGROUND: The aim of the study was to determine the utility of handgrip dynamometry (HGD) in predicting short term mortality and complications in alcoholic liver disease. METHODS: Patients with alcoholic liver disease were included and nutritional assessment was done using the Subjective Global Assessment (SGA), HGD and other conventional parameters. Mortality rates and complications were compared to nutritional status. RESULTS: 80 patients were included in the study...
October 2016: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
Flavia Feijó Nunes, Lílian Bassani, Sabrina Alves Fernandes, Maria Eugênia Deutrich, Bianca Coccaro Pivatto, Cláudio Augusto Marroni
Background: Patients with liver disease often present protein-energy malnutrition. The assessment of food intake is very important in the investigation regarding the "health-disease" process. Objective: To assess dietary intake of cirrhotic patients through food record during 3 days, correlating it with the nutritional status of the patient and the stage of the disease. Methods: Cirrhotic outpatients from the Santa Casa de Misericórdia Hospital, RS, Brazil, were assessed...
October 2016: Arquivos de Gastroenterologia
Paul Rinne, Michael Mace, Tagore Nakornchai, Karl Zimmerman, Susannah Fayer, Pankaj Sharma, Jean-Luc Liardon, Etienne Burdet, Paul Bentley
Motor-training software on tablets or smartphones (Apps) offer a low-cost, widely-available solution to supplement arm physiotherapy after stroke. We assessed the proportions of hemiplegic stroke patients who, with their plegic hand, could meaningfully engage with mobile-gaming devices using a range of standard control-methods, as well as by using a novel wireless grip-controller, adapted for neurodisability. We screened all newly-diagnosed hemiplegic stroke patients presenting to a stroke centre over 6 months...
2016: PloS One
S Manderoos, N Wasenius, M K Laine, U M Kujala, E Mälkiä, J Kaprio, S Sarna, H M Bäckmand, J A Kettunen, O J Heinonen, A M Jula, S Aunola, J G Eriksson
The aim of this cross-sectional study was to compare mobility and muscle strength in male former elite endurance and power athletes aged 66-91 years (n = 150; 50 men in both former elite athlete groups and in their control group). Agility, dynamic balance, walking speed, chair stand, self-rated balance confidence (ABC-scale), jumping height, and handgrip strength were assessed. Former elite power athletes had better agility performance time than the controls (age- and body mass index, BMI-adjusted mean difference -3...
October 5, 2016: Scandinavian Journal of Medicine & Science in Sports
Nadia Steiber
Handgrip strength is an important biomarker of healthy ageing and a powerful predictor of future morbidity and mortality both in younger and older populations. Therefore, the measurement of handgrip strength is increasingly used as a simple but efficient screening tool for health vulnerability. This study presents normative reference values for handgrip strength in Germany for use in research and clinical practice. It is the first study to provide normative data across the life course that is stratified by sex, age, and body height...
2016: PloS One
Daniel R Machin, Heather L Clifton, Ryan S Garten, Jayson R Gifford, Russell S Richardson, D Walter Wray, Tracy M Frech, Anthony John Donato
Systemic sclerosis (SSc) is a rare, auto-immune disease characterized by debilitating fibrosis and vascular dysfunction, however, little is known about the circulatory response to exercise in this population. Therefore, we examined the peripheral hemodynamic and vasodilatory responses to handgrip exercise in 10 patients with SSc (61 ± 4 yr) and 15 age-matched healthy controls (56 ± 5 yr). Brachial artery diameter, blood flow, and mean arterial pressure (MAP), were determined at rest and during progressive static-intermittent handgrip exercise...
September 30, 2016: American Journal of Physiology. Heart and Circulatory Physiology
N Lou, C-H Chi, X-D Chen, C-J Zhou, S-L Wang, C-L Zhuang, X Shen
BACKGROUND: Sarcopenia is a syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength. This study aims to explore the prevalence of sarcopenia in overweight and obese gastric cancer (GC) patients and figured out the impacts of sarcopenia on the postoperative complication of overweight and obese GC patients. METHODS: According to the recommended body-mass index (BMI) for Asian populations by WHO, we conducted a prospective study of overweight and obese gastric cancer patients (BMI ≥ 23 kg/m(2)) under curative gastrectomy from August 2014 to December 2015...
September 17, 2016: European Journal of Surgical Oncology
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