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European Journal of Applied Physiology

Mark Rakobowchuk
No abstract text is available yet for this article.
March 22, 2019: European Journal of Applied Physiology
Martin D Hoffman, Rhiannon M J Snipe, Ricardo J S Costa
No abstract text is available yet for this article.
March 21, 2019: European Journal of Applied Physiology
Niklas Joisten, David Walzik, Alexander Schenk, Wilhelm Bloch, Philipp Zimmer, Patrick Wahl
PURPOSE: Alterations in immunological homeostasis induced by acute exercise have been frequently reported. In view of the growing amount of repetitive exercise stimuli in competitive sports, quick recovery plays a superior role. Therefore, we examined whether aqua cycling affects cellular immunological recovery. METHODS: After performing 300 countermovement jumps with maximal effort male sport students (n = 20; 24.4 ± 2.2 years) were randomized into either an aqua cycling (AC) or a passive recovery (P) group...
March 20, 2019: European Journal of Applied Physiology
Simon Rauch, K Schenk, G Strapazzon, T Dal Cappello, H Gatterer, M Palma, M Erckert, L Oberhuber, B Bliemsrieder, H Brugger, P Paal
PURPOSE: Suspension syndrome describes a potentially life-threatening event during passive suspension on a rope. The pathophysiological mechanism is not fully understood and optimal treatment unknown. We aimed to elucidate the pathophysiology and to give treatment recommendations. METHODS: In this experimental, randomized crossover trial, 20 healthy volunteers were suspended in a sit harness for a maximum of 60 min, with and without prior climbing. Venous pooling was assessed by measuring the diameter of the superficial femoral vein (SFV), lower leg tissue oxygenation (StO2 ) and by determining localized bioelectrical impedance...
March 20, 2019: European Journal of Applied Physiology
Yann Le Mansec, Sylvain Dorel, Antoine Nordez, Marc Jubeau
PURPOSE: Reaction time, classically divided into premotor time and electromechanical delay (EMD), can be determinant in daily life or sport situations. While some previous studies reported a negative impact of both muscle and mental fatigue on reaction time, the respective contributions of premotor time and EMD to the changes of reaction time remains unclear. The aim of the study was, therefore, to assess the effects of both muscle and mental effort on reaction time and its components...
March 16, 2019: European Journal of Applied Physiology
Stefano Benítez-Flores, André R Medeiros, Fabrício Azevedo Voltarelli, Eliseo Iglesias-Soler, Kenji Doma, Herbert G Simões, Thiago Santos Rosa, Daniel A Boullosa
PURPOSE: The aim of this study was to compare the combined effects of resistance and sprint training, with very short efforts (5 s), on aerobic and anaerobic performances, and cardiometabolic health-related parameters in young healthy adults. METHODS: Thirty young physically active individuals were randomly allocated into four groups: resistance training (RTG), sprint interval training (SITG), concurrent training (CTG), and control (CONG). Participants trained 3 days/week for 2 weeks in the high-intensity interventions that consisted of 6-12 "all out" efforts of 5 s separated by 24 s of recovery, totalizing ~ 13 min per session, with 48-72 h of recovery between sessions...
March 16, 2019: European Journal of Applied Physiology
Lawrence E Armstrong, Michael F Bergeron
No abstract text is available yet for this article.
March 15, 2019: European Journal of Applied Physiology
Garrett M Hester, Mitchel A Magrini, Ryan J Colquhoun, Alejandra Barrera-Curiel, Carlos A Estrada, Alex A Olmos, Alyssa R Bailly, Phuong L Ha, Jason M DeFreitas
PURPOSE: The purpose of this study was to determine the effect of age on the cross-education of rapid and maximal contractile properties for the knee extensors. METHODS: Young (n = 10; age = 21.1 ± 1.7 years) and older (n = 10; age = 65.3 ± 8.3 years) males performed unilateral isokinetic resistance training (RT) of the knee extensors for 4 weeks. Maximal voluntary isokinetic (45° s-1 and 300° s-1 ) and isometric testing was conducted for the trained and untrained leg before and after RT...
March 14, 2019: European Journal of Applied Physiology
Adérito Seixas, Kurt Ammer
No abstract text is available yet for this article.
March 12, 2019: European Journal of Applied Physiology
Jacques Abboud, Arianne Lessard, Mathieu Piché, Martin Descarreaux
PURPOSE: The aim of this study was to evaluate the effectiveness of an exercise protocol designed to induce delayed-onset muscle soreness (DOMS) in paraspinal muscles and its effects on low back functional capacities. METHODS: Twenty-four healthy participants were asked to perform four series of 25 trunk flexion-extension in a prone position (45° inclined Roman chair). The protocol was performed using loads corresponding to participant's trunk weight plus 10% of their trunk extension maximal voluntary contraction...
March 11, 2019: European Journal of Applied Physiology
On Lee, Sukho Lee, Minsoo Kang, Junbae Mun, Jinwook Chung
PURPOSE: To develop accurate and practical prediction models of maximal oxygen consumption (VO2 max) using the Young Men's Christian Association (YMCA)-step test in South Korean adults. METHODS: In total, 568 adults (20-66 years) were included in this study. To develop and cross-validate prediction models of VO2 max, the total sample was divided into 80% training and 20% testing using a simple random sampling method. VO2 max was measured using the maximal-graded exercise treadmill test...
March 8, 2019: European Journal of Applied Physiology
Hubert Truebel, Sandra Wuester, Philip Boehme, Hinnerk Doll, Sven Schmiedl, Jacek Szymanski, Thorsten Langer, Thomas Ostermann, Dirk Cysarz, Petra Thuermann
BACKGROUND: Helium in oxygen (HELIOX) can relieve airway obstruction and lower the work of breathing because it increases the threshold at which turbulent gas flow is induced. Less turbulent and more laminar flow lowers the work of breathing. According to guidelines, the fraction of Helium in HELIOX should be maximized (e.g. to 79%). Here, we investigate whether HELIOX with less than 60% of Helium is able to relieve the sensation of dyspnea in healthy volunteers. METHODS: 44 volunteers underwent resistive loading breathing different gases (medical air and HELIOX with a fraction of 25%, 50% or 75% helium in oxygen) in a double-blinded crossover design...
March 8, 2019: European Journal of Applied Physiology
Flávia C Pimenta, Fábio Tanil Montrezol, Victor Zuniga Dourado, Luís Fernando Marcelino da Silva, Gabriela Alves Borba, Wesley de Oliveira Vieira, Alessandra Medeiros
PURPOSE: Physical exercise is associated with reduced blood pressure (BP). Moderate-intensity continuous exercise (MCE) promotes post-exercise hypotension (PEH), which is highly recommended to hypertensive patients. However, recent studies with high-intensity interval exercise (HIIE) have shown significant results in cardiovascular disease. Thus, this study aimed to analyze PEH in hypertensive subjects submitted to HIIE and compare it to post MCE hypotension. METHODS: 20 hypertensive adults (51 ± 8 years), treated with antihypertensive medications, were submitted to two different exercise protocols and a control session...
March 8, 2019: European Journal of Applied Physiology
Akemi Ota, Ryosuke Takeda, Daiki Imai, Nooshin Naghavi, Eriko Kawai, Kosuke Saho, Emiko Morita, Yuta Suzuki, Hisayo Yokoyama, Toshiaki Miyagawa, Kazunobu Okazaki
PURPOSE: Cerebral blood flow (CBF) would be impaired with dual stresses of heat and orthostatic changes, even if those stresses are mild, in the elderly with declined cardio- and cerebrovascular functions with aging. To test the hypothesis, we compared the response of blood flow in the internal carotid artery (ICA) and vertebral artery (VA) to dual stresses of heat and orthostatic changes between the elderly and young individuals. METHODS: Nine elderly and eight young healthy men (71...
March 8, 2019: European Journal of Applied Physiology
Jonathan P Little, Jodi Langley, Michael Lee, Etienne Myette-Côté, Garett Jackson, Cody Durrer, Martin J Gibala, Mary E Jung
PURPOSE: Sprint interval training (SIT), involving brief intermittent bursts of vigorous exercise within a single training session, is a time-efficient way to improve cardiorespiratory fitness (CRF). It is unclear whether performing sprints spread throughout the day with much longer (≥ 1 h) recovery periods can similarly improve CRF, potentially allowing individuals to perform "sprint snacks" throughout the day to gain health benefits. METHODS: Healthy, young, inactive adults (~ 22 years, peak oxygen uptake [VO2 peak] ~ 35 ml kg- 1  min- 1 ) were randomly assigned to one of two groups and performed 18 training sessions over 6 wks...
March 7, 2019: European Journal of Applied Physiology
Andy J King, John P O'Hara, Nicola C Arjomandkhah, Josh Rowe, Douglas J Morrison, Thomas Preston, Roderick F G J King
PURPOSE: This study investigated the effect of small manipulations in carbohydrate (CHO) dose on exogenous and endogenous (liver and muscle) fuel selection during exercise. METHOD: Eleven trained males cycled in a double-blind randomised order on 4 occasions at 60% [Formula: see text] for 3 h, followed by a 30-min time-trial whilst ingesting either 80 g h-1 or 90 g h-1 or 100 g h-1 13 C-glucose-13 C-fructose [2:1] or placebo. CHO doses met, were marginally lower, or above previously reported intestinal saturation for glucose-fructose (90 g h-1 )...
March 6, 2019: European Journal of Applied Physiology
Matthew M Mallette, Lara A Green, Gary J Hodges, Reno E Fernley, David A Gabriel, Michael W R Holmes, Stephen S Cheung
PURPOSE: Force variability is affected by environmental temperature, but whether the changes are from altered muscle temperature or proprioception are unclear. We tested how forearm muscle warming and cooling affected a force tracking task. METHODS: Twelve males and four females completed evoked, maximal, and isometric wrist flexion contractions (0-30% maximal) during thermoneutral-, warm-, and cold-muscle conditions. Forearm muscle temperature was manipulated using neutral (~ 33 °C), hot (~ 44 °C), or cold (~ 13 °C) water circulated through a tube-lined sleeve...
March 5, 2019: European Journal of Applied Physiology
Katarzyna Patrycja Dzik, Jan Jacek Kaczor
PURPOSE: This review provides a current perspective on the mechanism of vitamin D on skeletal muscle function with the emphasis on oxidative stress, muscle anabolic state and muscle energy metabolism. It focuses on several aspects related to cellular and molecular physiology such as VDR as the trigger point of vitamin D action, oxidative stress as a consequence of vitamin D deficiency. METHOD: The interaction between vitamin D deficiency and mitochondrial function as well as skeletal muscle atrophy signalling pathways have been studied and clarified in the last years...
March 4, 2019: European Journal of Applied Physiology
Owen Jeffries, Stephen David Patterson, Mark Waldron
PURPOSE: The purpose of this study was to determine the primary cues regulating perceived effort and exercise performance using a fixed-RPE protocol in severe and moderate hypoxia. METHODS: Eight male participants (26 ± 6 years, 76.3 ± 8.6 kg, 178.5 ± 3.6 cm, 51.4 ± 8.0 mL kg- 1  min- 1 [Formula: see text]O2max ) completed three exercise trials in environmental conditions of severe hypoxia (FI O2 0.114), moderate hypoxia (FI O2 0.152), and normoxia (FI O2 0...
March 1, 2019: European Journal of Applied Physiology
Akane Miyaji, Shohei Hayashi, Naoyuki Hayashi
PURPOSE: The facial skin blood flow (SkBF) shows regional differences in the responses to a given stimulation. The facial SkBFs, especially in the eyelid and nose exhibit unique response to physiological and psychological stimuli, but the mechanisms inducing those regional differences remain unclear. To investigate whether the regional differences in the local control of vasomotion in facial vessels correspond to the regional differences in facial SkBF response, we monitored the relative change of facial SkBF to regional thermal stimulation...
February 28, 2019: European Journal of Applied Physiology
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