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high intensity interval exercise

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https://www.readbyqxmd.com/read/28212346/the-relationship-between-physical-activity-and-plasma-glucose-level-amongst-ellisras-rural-young-adult-males-and-females-ellisras-longitudinal-study
#1
Moloko Matshipi, Kotsedi Daniel Monyeki, Han Kemper
Unhealthy lifestyle characteristics such as low physical activity (PA) and high plasma glucose levels (PGLs) may lead to the development of type 2 diabetes mellitus in adulthood. The aim of this study was to investigate (i) the level of physical activity; (ii) the prevalence of pre-diabetes and (iii) the relationship between PA and plasma glucose level in a rural Ellisras adult population aged 18 to 28 years. A total of 713 young adults (349 males and 364 females) who took part in the Ellisras Longitudinal Study participated in the study...
February 16, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28209742/cardiorespiratory-fitness-modulates-the-acute-flow-mediated-dilation-response-following-high-intensity-but-not-moderate-intensity-exercise-in-elderly-men
#2
Tom G Bailey, Maria Perissiou, Mark Windsor, Fraser D Russell, Jonathan Golledge, Daniel J Green, Christopher D Askew
Impaired endothelial function is observed with ageing and with low cardiorespiratory fitness (VO2peak) whilst improvements in both are suggested to be reliant on higher-intensity exercise in the elderly. This may be due to the flow-mediated dilation (FMD) response to acute exercise of varying intensity. We examined the hypothesis that exercise-intensity alters the FMD response in healthy elderly adults, and would be modulated by VO2peak Forty-seven elderly men were stratified into lower- (VO2peak = 24.3±2...
February 16, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28207951/endurance-capacity-and-neuromuscular-fatigue-following-high-vs-moderate-intensity-endurance-training-a-randomised-trial
#3
Thomas J O'Leary, Johnny Collett, Ken Howells, Martyn G Morris
High-intensity exercise induces significant central and peripheral fatigue, however the effect of endurance training on these mechanisms of fatigue is poorly understood. We compared the effect of cycling endurance training of disparate intensities on high-intensity exercise endurance capacity and the associated limiting central and peripheral fatigue mechanisms. Twenty adults were randomly assigned to 6 weeks of either high-intensity interval training (HIIT, 6-8 × 5 min at halfway between lactate threshold and maximal oxygen uptake [50%Δ]) or volume matched moderate-intensity continuous training (CONT, ~60-80 min at 90% lactate threshold)...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28198783/effect-of-moderate-versus-high-intensity-interval-exercise-training-on-heart-rate-variability-parameters-in-inactive-latin-american-adults-a-randomised-clinical-trial
#4
Robinson Ramírez-Vélez, Alejandra Tordecilla-Sanders, Luis Andrés Téllez-T, Diana Camelo-Prieto, Paula Andrea Hernández-Quiñonez, Jorge Enrique Correa-Bautista, Antonio Garcia-Hermoso, Rodrigo Ramírez-Campillo, Mikel Izquierdo
We investigated the effect of moderate versus high-intensity interval exercise training on the HRV indices in physically inactive adults. Twenty inactive adults were randomly allocated to receive either moderate intensity training (MCT group) or high-intensity interval training (HIT group). The MCT group performed aerobic training at an intensity of 55-75%, which consisted of walking on a treadmill at 60-80% of the maximum heart rate (HRmax) until the expenditure of 300 kcal. The HIT group ran on a treadmill for 4 minutes at 85-95% peak HRmax and had a recovery of 4 minutes at 65% peak HRmax until the expenditure of 300 kcal...
February 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28196405/psychosocial-interventions-for-supporting-women-to-stop-smoking-in-pregnancy
#5
REVIEW
Catherine Chamberlain, Alison O'Mara-Eves, Jessie Porter, Tim Coleman, Susan M Perlen, James Thomas, Joanne E McKenzie
BACKGROUND: Tobacco smoking remains one of the few preventable factors associated with complications in pregnancy, and has serious long-term implications for women and babies. Smoking in pregnancy is decreasing in high-income countries, but is strongly associated with poverty and is increasing in low- to middle-income countries. OBJECTIVES: To assess the effects of smoking cessation interventions during pregnancy on smoking behaviour and perinatal health outcomes...
February 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28188854/the-effects-of-a-single-bout-of-exercise-on-motor-memory-interference-in-the-trained-and-untrained-hemisphere
#6
Benedikt Lauber, Steffen Franke, Wolfgang Taube, Albert Gollhofer
Increasing evidence suggests that cardiovascular exercise has positive effects on motor memory consolidation. In this study, we investigated whether a single session of high-intensity interval training (HIIT) mitigates the effects of practicing an interfering motor task. Furthermore, learning and interference effects were assessed in the actively trained and untrained limb as it is known that unilateral motor learning can cause bilateral adaptations. Subjects performed a ballistic training and then the HIIT either before (HIIT_before) or after (HIIT_after) practicing an interfering accuracy task (AT)...
February 8, 2017: Neuroscience
https://www.readbyqxmd.com/read/28187143/the-relation-between-exercise-and-glaucoma-in-a-south-korean-population-based-sample
#7
Shuai-Chun Lin, Sophia Y Wang, Louis R Pasquale, Kuldev Singh, Shan C Lin
PURPOSE: To investigate the association between exercise and glaucoma in a South Korean population-based sample. DESIGN: Population-based, cross-sectional study. PARTICIPANTS: A total of 11,246 subjects, 40 years and older who underwent health care assessment as part of the 2008-2011 Korean National Health and Nutrition Examination Survey. METHODS: Variables regarding the duration (total minutes per week), frequency (days per week), and intensity of exercise (vigorous, moderate exercise and walking) as well as glaucoma prevalence were ascertained for 11,246 survey participants...
2017: PloS One
https://www.readbyqxmd.com/read/28183816/two-weeks-of-moderate-intensity-continuous-training-but-not-high-intensity-interval-training-increases-insulin-stimulated-intestinal-glucose-uptake
#8
Kumail Kumar Motiani, Anna M Savolainen, Jari-Joonas Eskelinen, Jussi Toivanen, Tamiko Ishizu, Minna Yli-Karjanmaa, Kirsi A Virtanen, Riitta Parkkola, Jukka Kapanen, Tove J Gronroos, Merja Haaparanta-Solin, Olof Solin, Nina Savisto, Markku Ahotupa, Eliisa Löyttyniemi, Juhani Knuuti, Pirjo Nuutila, Kari K Kalliokoski, Jarna C Hannukainen
Similar to muscles, the intestine is also insulin resistant in obese subjects and subjects with impaired glucose tolerance. Exercise training improves muscle insulin sensitivity, but its effects on intestinal metabolism are not known. We studied the effects of high intensity interval training (HIIT) and moderate intensity continuous training (MICT) on intestinal glucose and free fatty acid uptake from circulation in humans. Twenty-eight healthy middle-aged sedentary men were randomized for two weeks of HIIT or MICT...
February 9, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28183444/effects-of-lifestyle-interventions-on-clinical-characteristics-of-patients-with-non-alcoholic-fatty-liver-disease-a-meta-analysis
#9
Christina N Katsagoni, Michael Georgoulis, George V Papatheodoridis, Demosthenes B Panagiotakos, Meropi D Kontogianni
BACKGROUND/OBJECTIVES: Although lifestyle modifications remain the cornerstone therapy for non-alcoholic fatty liver disease (NAFLD), the optimal lifestyle intervention is still controversial. The aim of this meta-analysis was to evaluate the effect of exercise and/or dietary interventions, type or intensity of exercise and type of diet, on liver function outcomes (liver enzymes, intrahepatic fat and liver histology), as well as on anthropometric and glucose metabolism parameters in NAFLD patients...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28182793/the-effect-of-exercise-intensity-on-skeletal-muscle-stress-kinase-and-insulin-protein-signaling
#10
Lewan Parker, Adam Trewin, Itamar Levinger, Christopher S Shaw, Nigel K Stepto
BACKGROUND: Stress and mitogen activated protein kinase (SAPK) signaling play an important role in glucose homeostasis and the physiological adaptation to exercise. However, the effects of acute high-intensity interval exercise (HIIE) and sprint interval exercise (SIE) on activation of these signaling pathways are unclear. METHODS: Eight young and recreationally active adults performed a single cycling session of HIIE (5 x 4 minutes at 75% Wmax), SIE (4 x 30 second Wingate sprints), and continuous moderate-intensity exercise work-matched to HIIE (CMIE; 30 minutes at 50% of Wmax), separated by a minimum of 1 week...
2017: PloS One
https://www.readbyqxmd.com/read/28178145/one-session-of-high-intensity-interval-training-hiit-every-5-days-improves-muscle-power-but-not-static-balance-in-lifelong-sedentary-ageing-men-a-randomized-controlled-trial
#11
Nicholas F Sculthorpe, Peter Herbert, Fergal Grace
BACKGROUND: Declining muscle power during advancing age predicts falls and loss of independence. High-intensity interval training (HIIT) may improve muscle power, but remains largely unstudied in ageing participants. METHODS: This randomized controlled trial (RCT) investigated the efficacy of a low-frequency HIIT (LfHIIT) intervention on peak muscle power (peak power output [PPO]), body composition, and balance in lifelong sedentary but otherwise healthy males. METHODS: Thirty-three lifelong sedentary ageing men were randomly assigned to either intervention (INT; n = 22, age 62...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28177703/loads-and-movement-speed-affect-energy-expenditure-during-circuit-resistance-exercise
#12
Kirk B Roberson, Kevin A Jacobs, Morgan J White, Joseph F Signorile
Circuit resistance training (CT) constitutes a high-intensity interval program commonly used to target weight loss; however, the loads and exercise patterns that maximize energy expenditure (EE) remain undetermined. We examined differences in EE among CT protocols using varying loads and contraction speeds in recreationally-trained males and females. Seven males (21.1 ± 0.5y) and eight females (20.0 ± 0.9y) performed three randomized CT protocols incorporating three circuits using heavy-load (80%1RM) explosive (HLEC), heavy-load, controlled (2s) (HLCC), and moderate-load (50%1RM) explosive contractions (MLEC)...
January 31, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28174454/effect-of-short-term-fatigue-induced-by-high-intensity-exercise-on-the-profile-of-the-ground-reaction-force-during-single-leg-anterior-drop-jumps
#13
Saya Watanabe, Junya Aizawa, Manabu Shimoda, Mitsuhiro Enomoto, Tomomasa Nakamura, Atushi Okawa, Kazuyoshi Yagishita
[Purpose] Fatigue may be an important contributing factor to non-contact anterior cruciate ligament injuries in sports. The purpose of this study was to evaluate the effects of controlled lower limb fatigue, induced by a short-term, high-intensity exercise protocol, on the profile of the ground reaction force during landings from single-leg anterior drop-jumps. [Subjects and Methods] Twelve healthy males, 18 to 24 years old, performed single-leg anterior drop-jumps, from a 20 cm height, under two conditions, 'fatigue' and 'non-fatigue'...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28166118/all-extremity-exercise-training-improves-arterial-stiffness-in-older-adults
#14
Han-Kyul Kim, Chueh-Lung Hwang, Jeung-Ki Yoo, Moon-Hyon Hwang, Eileen M Handberg, John W Petersen, Wilmer W Nichols, Sofia Sofianos, Demetra D Christou
: Large elastic arteries stiffen with age which predisposes older adults to increased risk for cardiovascular disease. Aerobic exercise training is known to reduce the risk for cardiovascular disease, but the optimal exercise prescription for attenuating large elastic arterial stiffening in older adults is not known. PURPOSE: The purpose of this randomized controlled trial was to compare the effect of all-extremity high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on aortic pulse wave velocity (PWV) and carotid artery compliance in older adults...
February 4, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28160083/high-intensity-aerobic-interval-training-improves-aerobic-fitness-and-hba1c-among-persons-diagnosed-with-type-2-diabetes
#15
Eva Maria Støa, Sondre Meling, Lill-Katrin Nyhus, Glenn Strømstad, Karl Magnus Mangerud, Jan Helgerud, Solfrid Bratland-Sanda, Øyvind Støren
PURPOSE: It remains to be established how high-intensity aerobic interval training (HAIT) affects risk factors associated with type 2 diabetes (TD2). This study investigated effects of HAIT on maximal oxygen uptake (VO2max), glycated Hemoglobin type A1C (HbA1c), insulin resistance (IR), fat oxidation (FatOx), body weight (BW), percent body fat (%BF), lactate threshold (LT), blood pressure (BP), and blood lipid profile (BLP) among persons with T2D. Results were compared to the effects after a moderate-intensity training (MIT) program...
February 3, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28154947/autonomic-cardiovascular-modulation-in-masters-and-young-cyclists-following-high-intensity-interval-training
#16
Nattai R Borges, Peter R Reaburn, Thomas M Doering, Christos K Argus, Matthew W Driller
PURPOSE: This study aimed at examining the autonomic cardiovascular modulation in well-trained masters and young cyclists following high-intensity interval training (HIT). METHODS: Nine masters (age 55.6 ± 5.0 years) and eight young cyclists (age 25.9 ± 3.0 years) completed a HIT protocol of 6 x 30 sec at 175% of peak power output, with 4.5-min' rest between efforts. Immediately following HIT, heart rate and R-R intervals were monitored for 30-min during passive supine recovery...
February 2, 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28153946/effects-and-prevalence-of-non-responders-after-12weeks-of-high-intensity-interval-or-resistan-training-in-adult-woman-with-insulin-resistance-a-randomized-trial
#17
Cristian Alvarez, Rodrigo Ramírez-Campillo, Robinson Ramírez-Vélez, Mikel Izquierdo
AIMS/HYPOTHESIS: Our aim was to investigate the effects and prevalence of non-responders (NR) to high-intensity interval training (HIIT) and resistant training (RT)in adult woman with insulin resistance on cardiometabolic health parameters. METHODS: Sedentary overweight/obese insulin resistant adult women (age = 33.5 ±6.5 years;BMI=29.9 ± 3.7kg/m2) were randomly assigned to a tri-weekly HIIT program(HIIT;n=18) or resistant training (RT;n=17).Anthropometry (body mass, fat mas, muscle mass, waist circumference and skinfolds thickness),cardiovascular(blood pressure), metabolic (fasting glucose, fasting insulin and HOMA-IR),as well muscle strength, and endurance performance co-variables were measured before and after 12 weeks in both intervention groups...
February 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28142069/physical-exercise-ameliorates-mood-disorder-like-behavior-on-high-fat-diet-induced-obesity-in-mice
#18
Hye-Sang Park, Jae-Min Lee, Han-Sam Cho, Sang-Seo Park, Tae-Woon Kim
Obesity is associated with mood disorders such as depression and anxiety. The aim of this study was to investigate whether treadmill exercise had any benefits on mood disorder by high fat diet (HFD) induced obesity. Mice were randomly divided into four groups: control, control and exercise, high fat diet (HFD), and HFD and exercise. Obesity was induced by a 20-week HFD (60%). In the exercise groups, exercise was performed 6 times a week for 12 weeks, with the exercise duration and intensity gradually increasing at 4-week intervals...
January 5, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28134772/effects-of-different-exercise-modes-on-the-urinary-metabolic-fingerprint-of-men-with-and-without-metabolic-syndrome
#19
Aikaterina Siopi, Olga Deda, Vasiliki Manou, Spyros Kellis, Ioannis Kosmidis, Despina Komninou, Nikolaos Raikos, Kosmas Christoulas, Georgios A Theodoridis, Vassilis Mougios
Exercise is important in the prevention and treatment of the metabolic syndrome (MetS), a cluster of risk factors that raises morbidity. Metabolomics can facilitate the optimization of exercise prescription. This study aimed to investigate whether the response of the human urinary metabolic fingerprint to exercise depends on the presence of MetS or exercise mode. Twenty-three sedentary men (MetS, n = 9, and Healthy, n = 14) completed four trials: resting, high-intensity interval exercise (HIIE), continuous moderate-intensity exercise (CME), and resistance exercise (RE)...
January 26, 2017: Metabolites
https://www.readbyqxmd.com/read/28128633/reliability-of-time-to-exhaustion-and-selected-psycho-physiological-variables-during-constant-load-cycling-at-the-maximal-lactate-steady-state
#20
Oliver Faude, Anne Hecksteden, Daniel Hammes, Franck Schumacher, Eric Besenius, Billy Sperlich, Tim Meyer
The maximal lactate steady-state (MLSS) is frequently assessed for prescribing endurance exercise intensity. Knowledge of the intra-individual variability of the MLSS is important for practical application. To date, little is known about the reliability of time-to-exhaustion and physiological responses to exercise at MLSS. Twenty-one healthy men (age, 25.2 (SD 3.3) years; height, 1.83 (0.06) m; body mass, 78.9 (8.9) kg; maximal oxygen uptake, 57.1 (10.7) mL·min(-1)·kg(-1)) performed 1 incremental exercise test, and 2 constant-load tests to determine MLSS intensity...
February 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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