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Aerobic exercise

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https://www.readbyqxmd.com/read/28340292/combined-spiroergometry-and-31-p-mrs-of-human-calf-muscle-during-high-intensity-exercise
#1
K Moll, A Gussew, C Hein, N Stutzig, J R Reichenbach
Simultaneous measurements of pulmonary oxygen consumption (VO2 ), carbon dioxide exhalation (VCO2 ) and phosphorus magnetic resonance spectroscopy ((31) P-MRS) are valuable in physiological studies to evaluate muscle metabolism during specific loads. Therefore, the aim of this study was to adapt a commercially available spirometric device to enable measurements of VO2 and VCO2 whilst simultaneously performing (31) P-MRS at 3 T. Volunteers performed intense plantar flexion of their right calf muscle inside the MR scanner against a pneumatic MR-compatible pedal ergometer...
March 24, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28339438/the-role-of-autonomic-function-in-exercise-induced-endogenous-analgesia-a-case-control-study-in-myalgic-encephalomyelitis-chronic-fatigue-syndrome-and-healthy-people
#2
Jessica Van Oosterwijck, Uros Marusic, Inge De Wandele, Lorna Paul, Mira Meeus, Greta Moorkens, Luc Lambrecht, Lieven Danneels, Jo Nijs
BACKGROUND: Patients with myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS) are unable to activate brain-orchestrated endogenous analgesia (or descending inhibition) in response to exercise. This physiological impairment is currently regarded as one factor explaining post-exertional malaise in these patients. Autonomic dysfunction is also a feature of ME/CFS. OBJECTIVES: This study aims to examine the role of the autonomic nervous system in exercise-induced analgesia in healthy people and those with ME/CFS, by studying the recovery of autonomic parameters following aerobic exercise and the relation to changes in self-reported pain intensity...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28338405/physiological-responses-to-treadmill-running-with-body-weight-support-in-hypoxia-compared-to-normoxia
#3
Ben J Lee, Charles Douglas Thake
CONTEXT: Anecdotal reports suggest elite sports clubs combine lower body positive pressure (LBPP) rehabilitation with a hypoxic stimulus in order to maintain or increase physiological and metabolic strain, which are reduced during LBPP. However the effects of hypoxia on cardiovascular and metabolic response during LBPP rehabilitation is unknown. OBJECTIVE: Evaluate the use of normobaric hypoxia as a means to increase physiological strain during body weight supported (BWS) running...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28338361/method-induced-differences-of-energy-contributions-in-adolescent-female-kayaking
#4
Yongming Li, Margot Niessen, Xiaoping Chen, Ulrich Hartmann
Purpose Different relative aerobic energy contribution (WAER%) has been reported for the two female Olympic kayaking disciplines (i.e. 200 and 500m). The purpose of this study was to investigate whether the adopted method of energy calculation influenced the value of WAER% during the kayaking time trials. Methods Eleven adolescent female kayakers (age 14±1 yrs, height 172±4 cm, body mass 65.4±4.2 kg, VO2peak 42.6±4.9 ml·min(-1)·kg(-1), training experience 1.5±0.3 yrs) volunteered to participate in one incremental exercise test and two time trials (40s and 120s) on the kayak ergometer...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28336108/vitamin-d-increases-ppar%C3%AE-expression-and-promotes-beneficial-effects-of-physical-activity-in-metabolic-syndrome
#5
Rastegar Hoseini, Arsalan Damirchi, Parvin Babaei
OBJECTIVES: Peroxisome proliferator-activated receptor (PPAR) and vitamin D signaling pathways regulate a multitude of genes involved in different physiological functions. The aim of the present study was to examine the effects of vitamin D supplementation and aerobic training on metabolic syndrome and PPARγ expression. METHODS: Forty female ovariectomized rats were divided into five groups of aerobic training with high (OVX + Exe + HD), moderate (OVX + Exe + MD), and low dose of vitamin D (OVX + Exe + LD), aerobic training receving vehicle (sesame oil; OVX + Exe + oil), and sham-operated control (sham) groups...
April 2017: Nutrition
https://www.readbyqxmd.com/read/28334675/exercise-increases-serum-brain-derived-neurotrophic-factor-in-patients-with-major-depressive-disorder
#6
A Kerling, M Kück, U Tegtbur, L Grams, S Weber-Spickschen, A Hanke, B Stubbs, K G Kahl
BACKGROUND: Brain derived neurotrophic factor (BDNF) has been implicated in the pathogenesis of major depressive disorder (MDD). Existing data on exercise treatment in people with MDD are inconsistent concerning the effect of exercise on BDNF pointing either to increased or unaltered BDNF concentrations. However, studies in non-depressed persons demonstrated a significant effect on resting peripheral BDNF concentrations in aerobic training interventions. Given the lack of clarity mentioned above, the current study aimed at examining the effect of adjunctive exercise on serum BDNF levels in guideline based treated patients with MDD...
March 18, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28332116/sweating-rate-and-sweat-sodium-concentration-in-athletes-a-review-of-methodology-and-intra-interindividual-variability
#7
REVIEW
Lindsay B Baker
Athletes lose water and electrolytes as a consequence of thermoregulatory sweating during exercise and it is well known that the rate and composition of sweat loss can vary considerably within and among individuals. Many scientists and practitioners conduct sweat tests to determine sweat water and electrolyte losses of athletes during practice and competition. The information gleaned from sweat testing is often used to guide personalized fluid and electrolyte replacement recommendations for athletes; however, unstandardized methodological practices and challenging field conditions can produce inconsistent/inaccurate results...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28332025/endurance-aerobic-high-intensity-and-repeated-sprint-cycling-performance-is-unaffected-by-normobaric-live-high-train-low-a-double-blind-placebo-controlled-cross-over-study
#8
Jacob Bejder, Andreas Breenfeldt Andersen, Rie Buchardt, Tanja Hultengren Larsson, Niels Vidiendal Olsen, Nikolai Baastrup Nordsborg
The aim was to investigate whether 6 weeks of normobaric "Live High-Train Low" (LHTL) using altitude tents affect highly trained athletes incremental peak power, 26-km time-trial cycling performance, 3-min all-out performance, and 30-s repeated sprint ability. In a double-blinded, placebo-controlled cross-over design, seven highly trained triathletes were exposed to 6 weeks of normobaric hypoxia (LHTL) and normoxia (placebo) for 8 h/day. LHTL exposure consisted of 2 weeks at 2500 m, 2 weeks at 3000 m, and 2 weeks at 3500 m...
March 22, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28330458/the-effects-of-an-extensive-exercise-programme-on-the-progression-of-mild-cognitive-impairment-mci-study-protocol-for-a-randomised-controlled-trial
#9
Kate E Devenney, Brian Lawlor, Marcel G M Olde Rikkert, Stefan Schneider
BACKGROUND: Exercise interventions to prevent dementia and delay cognitive decline have gained considerable attention in recent years. Human and animal studies have demonstrated that regular physical activity targets brain function by increasing cognitive reserve. There is also evidence of structural changes caused by exercise in preventing or delaying the genesis of neurodegeneration. Although initial studies indicate enhanced cognitive performance in patients with mild cognitive impairment (MCI) following an exercise intervention, little is known about the effect of an extensive, controlled and regular exercise regimen on the neuropathology of patients with MCI...
March 22, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28327083/the-effect-of-an-interactive-cycling-training-on-cognitive-functioning-in-older-adults-with-mild-dementia-study-protocol-for-a-randomized-controlled-trial
#10
E G A Karssemeijer, W J R Bossers, J A Aaronson, R P C Kessels, M G M Olde Rikkert
BACKGROUND: To date there is no cure or an effective disease-modifying drug to treat dementia. Available acetylcholine-esterase inhibiting drugs or memantine only produce small benefits on cognitive and behavioural functioning and their clinical relevance remains controversial. Combined cognitive-aerobic interventions are an appealing alternative or add-on to current pharmacological treatments. The primary aim of this study is to investigate the efficacy of a combined cognitive-aerobic training and a single aerobic training compared to an active control group in older adults with mild dementia...
March 21, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28325791/individual-variations-in-nitric-oxide-synthase-dependent-sweating-in-young-and-older-males-during-exercise-in-the-heat-role-of-aerobic-power
#11
Tatsuro Amano, Naoto Fujii, Jeffrey C Louie, Robert D Meade, Glen P Kenny
We evaluated the association between aerobic power (defined by peak oxygen consumption; VO2peak) and the contribution of nitric oxide synthase (NOS) to the sweating response in young and older individuals during exercise in the heat. Data from 44 young (24 ± 1 years) and 48 older (61 ± 2 years) males with mean VO2peak of 47.8 ± 2.4 (range, 28.0-62.3) and 39.1 ± 2.3 (range, 26.4-55.7) mLO2 kg(-1) min(-1), respectively, were compiled from our prior studies. Participants performed two 15- to 30-min bouts of exercise at a fixed rate of metabolic heat production of 400 or 500 W, each separated by 15-20 min recovery in the heat (35°C, relative humidity of 20%)...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28325109/feasibility-and-effects-of-a-combined-adjuvant-high-intensity-interval-strength-training-in-breast-cancer-patients-a-single-center-pilot-study
#12
Sebastian Viktor Waldemar Schulz, Roman Laszlo, Stephanie Otto, Dmytro Prokopchuk, Uwe Schumann, Florian Ebner, Jens Huober, Jürgen Michael Steinacker
PURPOSE: To evaluate feasibility of an exercise intervention consisting of high-intensity interval endurance and strength training in breast cancer patients. METHODS: Twenty-six women with nonmetastatic breast cancer were consecutively assigned to the exercise intervention- (n= 15, mean age 51.9 ± 9.8 years) and the control group (n = 11, mean age 56.9 ± 7.0 years). Cardiopulmonary exercise testing that included lactate sampling, one-repetition maximum tests and a HADS-D questionnaire were used to monitor patients both before and after a supervised six weeks period of either combined high-intensity interval endurance and strength training (intervention group, twice a week) or leisure training (control group)...
March 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28323305/exercise-to-reduce-work-related-fatigue-among-employees-a-randomized-controlled-trial
#13
Juriena D de Vries, Madelon Lm van Hooff, Sabine Ae Guerts, Michiel Aj Kompier
Objectives The present study evaluated the efficacy of an exercise intervention to reduce work-related fatigue (emotional exhaustion, overall fatigue, and need for recovery). The effects of exercise on self-efficacy, sleep, work ability, cognitive functioning and aerobic fitness (secondary outcomes) were also investigated. Methods Employees with high levels of work-related fatigue were randomly assigned to either a 6-week exercise intervention (EI; N=49) or a wait-list control group (WLC; N=47). All participants were measured pre- (T0) and post-intervention (T1)...
March 21, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/28322760/-effects-of-exergames-on-quality-of-life-pain-and-disease-impact-in-women-with-fibromyalgia-a-randomized-controlled-trial
#14
Daniel Collado-Mateo, Francisco Javier Dominguez-Muñoz, Jose Carmelo Adsuar, Miguel Angel Garcia-Gordillo, Narcis Gusi
OBJECTIVE: To evaluate the effects of an exergame-based intervention in a population sample of women with fibromyalgia. DESIGN: This study was a single-blinded, randomized controlled trial for 8-week intervention. SETTING: Fibromyalgia center. PARTICIPANTS: Participants (only women) were divided into two groups: an exercise group (n=42; mean age ± SD, 52.52 ± 9.73) and a control group (n=41; mean age ± SD, 52.47 ± 8...
March 18, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28322576/the-effects-of-exercise-on-abdominal-fat-and-liver-enzymes-in-pediatric-obesity-a-systematic-review-and-meta-analysis
#15
Katherine González-Ruiz, Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Mark D Peterson, Antonio García-Hermoso
BACKGROUND: Despite the prevalence of obesity and the multiple position stands promoting exercise for the treatment of obesity and hepatic function, a meta-analytic approach has not previously been used to examine the effects in the pediatric population. The aim of the study was to determine the effectiveness of exercise interventions on abdominal fat, liver enzymes, and intrahepatic fat in overweight and obese youth. MATERIALS AND METHODS: A computerized search was made using three databases...
March 21, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/28321925/effects-of-6-months-aerobic-interval-training-on-skeletal-muscle-metabolism-in-middle-aged-metabolic-syndrome-patients
#16
A Guadalupe-Grau, V E Fernández-Elías, J F Ortega, F Dela, J W Helge, R Mora Rodríguez
AIM: Aerobic interval training (AIT) improves the health of metabolic syndrome patients (MetS) more than moderate intensity continuous training. However, AIT has not been shown to reverse all metabolic syndrome risk factors, possibly due to the limited duration of the training programs. PURPOSE: To assess the effects of 6 months of AIT on cardio-metabolic health and muscle metabolism in middle aged MetS. METHODS: Eleven MetS (54.5 ± 0.7 yrs old) underwent 6 month of 3 days a week supervised AIT program on a cycle-ergometer...
March 21, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28321254/does-good-aerobic-capacity-attenuate-the-effects-of-aging-on-cardiovascular-risk-factors-results-from-a-cross-sectional-study-in-a-latino-population
#17
Giovanna Valentino, Mónica Acevedo, Lorena Orellana, María José Bustamante, Verónica Kramer, Marcela Adasme, Fernando Baraona, Gastón Chamorro, Jorge Jalil, Carlos Navarrete
Background. High aerobic capacity is associated with low cardiovascular (CV) risk. The aim of this study was to determine the CV RF burden in subjects with aerobic capacity ≥10 METs and compare it with those having <10 METs. Methods. Cross-sectional study in 2646 subjects (mean age 48 ± 12 years). Demographics, medical history, physical activity, cardiovascular RFs, fasting lipids and blood glucose levels, blood pressure, and anthropometric measurements were collected. Aerobic capacity was determined by exercise stress test...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28321063/a-pilot-study-the-beneficial-effects-of-combined-statin-exercise-therapy-on-cognitive-function-in-patients-with-coronary-artery-disease-and-mild-cognitive-decline
#18
Kensuke Toyama, Seigo Sugiyama, Hideki Oka, Mari Hamada, Yuri Iwasaki, Eiji Horio, Taku Rokutanda, Shinichi Nakamura, Joshua M Spin, Philip S Tsao, Hisao Ogawa
Objective Hypercholesterolemia, a risk factor in cognitive impairment, can be treated with statins. However, cognitive decline associated with "statins" (HMG-CoA reductase inhibitors) is a clinical concern. This pilot study investigated the effects of combining statins and regular exercise on cognitive function in coronary artery disease (CAD) patients with prior mild cognitive decline. Methods We recruited 43 consecutive CAD patients with mild cognitive decline. These patients were treated with a statin and weekly in-hospital aerobic exercise for 5 months...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28320488/the-effect-of-rider-weight-and-additional-weight-in-icelandic-horses-in-t%C3%A3-lt-part-i-physiological-responses
#19
G J Stefánsdóttir, V Gunnarsson, L Roepstorff, S Ragnarsson, A Jansson
This study examined the effect of increasing BW ratio (BWR) between rider and horse, in the BWR range common for Icelandic horses (20% to 35%), on heart rate (HR), plasma lactate concentration (Lac), BWR at Lac 4 mmol/l (W4), breathing frequency (BF), rectal temperature (RT) and hematocrit (Hct) in Icelandic horses. In total, eight experienced school-horses were used in an incremental exercise test performed outdoors on an oval riding track and one rider rode all horses. The exercise test consisted of five phases (each 642 m) in tölt, a four-beat symmetrical gait, at a speed of 5...
March 21, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28320071/adherence-to-national-exercise-guidelines-by-patients-attending-emergency-departments-a-multi-site-survey
#20
Paul Berlingeri, Neil Cunningham, David McD Taylor, Jonathan Knott, Daniel McLean, Rex Gavan, Luke Plant, Hayley Chen, Tracey Weiland
OBJECTIVE: The proportion of adults in Australia meeting or exceeding the national guidelines for physical activity has remained relatively static over the past 10 years. The research objective was to measure self-reported physical activity and sedentary behaviour among ED patients in accordance with Australia's current physical activity and sedentary behaviour guidelines, revised in 2014. METHODS: A convenience sample of participants was recruited from three EDs in Melbourne between February and May 2016...
March 20, 2017: Emergency Medicine Australasia: EMA
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