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European Journal of Applied Physiology

https://read.qxmd.com/read/38771358/the-biphasic-activity-of-autophagy-and-heat-shock-protein-response-in-peripheral-blood-mononuclear-cells-following-acute-resistance-exercise-in-resistance-trained-males
#1
JOURNAL ARTICLE
Kurt A Escobar, Trisha A VanDusseldorp, Kelly E Johnson, Matthew Stratton, James J McCormick, Terence Moriarity, Karol Dokladny, Roger A Vaughan, Chad M Kerksick, Len Kravitz, Christine M Mermier
PURPOSE: Autophagy and heat shock protein (HSP) response are proteostatic systems involved in the acute and adaptive responses to exercise. These systems may upregulate sequentially following cellular stress including acute exercise, however, currently few data exist in humans. This study investigated the autophagic and HSP responses to acute intense lower body resistance exercise in peripheral blood mononuclear cells (PBMCs) with and without branched-chain amino acids (BCAA) supplementation...
May 21, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38762834/motor-unit-firing-rates-during-slow-and-fast-contractions-in-boys-and-men
#2
JOURNAL ARTICLE
Stacey Woods, Andrew McKiel, Trent Herda, Panagiota Klentrou, Michael Holmes, David Gabriel, Bareket Falk
BACKGROUND: Motor unit (MU) activation during maximal contractions is lower in children compared with adults. Among adults, discrete MU activation differs, depending on the rate of contraction. We investigated the effect of contraction rate on discrete MU activation in boys and men. METHODS: Following a habituation session, 14 boys and 20 men completed two experimental sessions for knee extension and wrist flexion, in random order. Maximal voluntary isometric torque (MVIC) was determined before completing trapezoidal isometric contractions (70%MVIC) at low (10%MVIC/s) and high (35%MVIC/s) contraction rates...
May 19, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38761194/correction-in-memory-of-kelvin-kiptum-a-reflection-on-his-record-breaking-marathon-and-the-future-outlook-for-a-sub-2-h-race-from-a-drafting-perspective
#3
G D Fernandes, Victor Maldonado
No abstract text is available yet for this article.
May 18, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38761193/identifying-physiological-determinants-of-800%C3%A2-m-running-performance-using-post-exercise-blood-lactate-kinetics
#4
JOURNAL ARTICLE
Takuya Watanabe, Takeru Inaba, Cody R van Rassel, Martin J MacInnis, Katsuyuki Kakinoki, Hideo Hatta
PURPOSE: The aims of the present study were to investigate blood lactate kinetics following high intensity exercise and identify the physiological determinants of 800 m running performance. METHODS: Fourteen competitive 800 m runners performed two running tests. First, participants performed a multistage graded exercise test to determine physiological indicators related to endurance performance. Second, participants performed four to six 30-s high intensity running bouts to determine post-exercise blood lactate kinetics...
May 18, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38758411/delayed-neuromuscular-fatigue-recovery-unveils-reduced-fatigue-tolerance-in-elderly-following-maximal-intermittent-exercise
#5
JOURNAL ARTICLE
Slim Zarzissi, Firas Zghal, Mustapha Bouchiba, Haithem Rebai, Nadia Fekih, Mohamed Amine Bouzid
The aim of the study was to assess the impact of aging on neuromuscular fatigue and recovery. Ten young (23.08 ± 1.43 years) and older (61.19 ± 1.80 years) males performed an intermittent maximal isometric exercise with the knee extensors followed by 27 min of recovery. Maximal voluntary contraction (MVC), total work (W'), voluntary activation (VA), potentiated resting twitch (Ptw), and electromyography (EMG) were recorded and then analyzed. Peripheral and central fatigue following exercise were lower in old compared to young (- 29...
May 17, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38753017/impacts-of-age-type-2-diabetes-and-hypertension-on-circulating-neutrophil-gelatinase-associated-lipocalin-and-kidney-injury-molecule-1-after-prolonged-work-in-the-heat-in-men
#6
JOURNAL ARTICLE
Ben J Lee, Tessa R Flood, Sophie L Russell, James J McCormick, Naoto Fujii, Glen P Kenny
PURPOSE: Prolonged work in the heat increases the risk of acute kidney injury (AKI) in young men. Whether aging and age-associated chronic disease may exacerbate the risk of AKI remains unclear. METHODS: We evaluated plasma neutrophil gelatinase-associated lipocalin (NGAL) and serum kidney injury molecule-1 (KIM1) before and after 180 min of moderate-intensity work (200 W/m2 ) in temperate (wet-bulb globe temperature [WBGT] 16 °C) and hot (32 °C) environments in healthy young (n = 13, 22 years) and older men (n = 12, 59 years), and older men with type 2 diabetes (T2D; n = 9, 60 years) or hypertension (HTN; n = 9, 60 years)...
May 16, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38753016/examining-the-relationship-between-genetic-polymorphisms-bdkrb2-gnb3-hif1a-mct1-nos3-and-endurance-athlete-status
#7
REVIEW
Gökhan İpekoğlu, Necdet Apaydın, Tuğba Çetin, Ahsen Nur Eren, Pelinsu Topçu, Büşra Yücelsoy, Güngör Civelek, Mert Sakar
PURPOSE: Genetic factors are important in terms of athletic performance. Recent studies to determine the relationship between the genes that lead to physiological responses have attracted attention. In this respect, this meta-analysis study was designed to examine the relationship between genetic polymorphism (BDKRB2 rs5810761, GNB3 rs5443, HIF1A rs11549565, MCT1 rs1049434, NOS3 rs2070744) and endurance athlete's status. METHODS: The search included studies published from 2009 to 2022...
May 16, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38730035/minimum-velocity-threshold-in-response-to-the-free-weight-back-squat-reliability-and-validity-of-different-submaximal-loading-schemes
#8
JOURNAL ARTICLE
Goncalo V Mendonca, Diogo L Alves, Afonso Fitas, Pedro Pezarat-Correia
PURPOSE: To explore if mean concentric velocity (MCV) of the last repetition before set failure differs between free-weight back squat protocols with greater emphasis on metabolic accumulation vs. mechanical loading. The between-set and between-day reliability of terminal MCV obtained with these different loading schemes was also determined. METHODS: Fifteen healthy male participants (18-30 years) were included. They all were required to exhibit a relative strength ≥ 1...
May 10, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38714564/correction-substrate-utilization-and-durability-during-prolonged-intermittent-exercise-in-elite-road-cyclists
#9
Niels Ørtenblad, Magnus Zachariassen, Joachim Nielsen, Kasper Degn Gejl
No abstract text is available yet for this article.
May 8, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38710835/eight-weeks-of-high-intensity-interval-training-versus-stretching-do-not-change-the-psychoneuroendocrine-response-to-a-social-stress-test-in-emotionally-impulsive-humans
#10
JOURNAL ARTICLE
F Javelle, W Bloch, U Borges, T Burberg, B Collins, N Gunasekara, T J Hosang, T Jacobsen, S Laborde, A Löw, A Schenk, M L Schlagheck, D Schoser, A Vogel, D Walzik, P Zimmer
PURPOSE: Research supports physical activity as a method to heighten stress resistance and resilience through positive metabolic alterations mostly affecting the neuroendocrine system. High-intensity interval training (HIIT) has been proposed as a highly effective time-saving method to induce those changes. However, existing literature relies heavily on cross-sectional analyses, with few randomised controlled trials highlighting the necessity for more exercise interventions. Thus, this study aims to investigate the effects of HIIT versus an active control group on the stress response to an acute psychosocial stressor in emotionally impulsive humans (suggested as being strong stress responders)...
May 6, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38703192/is-breathing-frequency-a-potential-means-for-monitoring-exercise-intensity-in-people-with-atrial-fibrillation-and-coronary-heart-disease-when-heart-rate-is-mitigated
#11
JOURNAL ARTICLE
John P Buckley, Tasuku Terada, Anna Lion, Jennifer L Reed
PURPOSE: Moderate-intensity aerobic exercise is safe and beneficial in atrial fibrillation (AF) and coronary heart disease (CHD). Irregular or rapid heart rates (HR) in AF and other heart conditions create a challenge to using HR to monitor exercise intensity. The purpose of this study was to assess the potential of breathing frequency (BF) to monitor exercise intensity in people with AF and CHD without AF. METHODS: This observational study included 30 AF participants (19 Male, 70...
May 4, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38702553/age-related-effects-of-neuromuscular-fatigue-and-acute-recovery-responses-on-maximal-and-rapid-torque-measures-of-the-leg-extensors-and-flexors
#12
JOURNAL ARTICLE
Brennan J Thompson, Eric C Conchola, Kimberly A Clevenger
PURPOSE: To examine the effects of neuromuscular fatigue and recovery on maximal and rapid torque characteristics in young and old men for the leg extensors and flexors. METHODS: Twenty-one young (age = 24.8 years) and 19 old (72.1 years) men performed maximal voluntary contractions (MVCs) before and at 0, 7, 15, and 30 min following an intermittent submaximal fatigue task. Outcome measures included endurance time, maximal (peak torque; PT) and rapid (absolute and normalized rate of torque development; RTD and nRTD) torque characteristics...
May 3, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38695912/effect-of-low-volume-combined-aerobic-and-resistance-high-intensity-interval-training-on-vascular-health-in-people-with-type-2-diabetes-a-randomised-controlled-trial
#13
JOURNAL ARTICLE
Emily R Cox, Trishan Gajanand, Shelley E Keating, Matthew D Hordern, Nicola W Burton, Daniel J Green, Joyce S Ramos, Maximiano V Ramos, Robert G Fassett, Stephen V Cox, Jeff S Coombes, Tom G Bailey
PURPOSE: We compared the effects of low-volume combined aerobic and resistance high-intensity interval training (C-HIIT), combined moderate-intensity continuous training (C-MICT) and waitlist control (CON) on vascular health after 8-weeks of supervised training, and an additional 10-months of self-directed training, in adults with type 2 diabetes (T2D). METHODS: Sixty-nine low active adults with T2D were randomised to 8-weeks of supervised C-HIIT (3 times/week, 78-min/week), C-MICT (current exercise guidelines, 4 times/week, 210-min/week) or CON...
May 2, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38689040/the-effects-of-static-and-dynamic-stretching-on-deep-fascia-stiffness-a-randomized-controlled-cross-over-study
#14
JOURNAL ARTICLE
Konstantin Warneke, Thomas Rabitsch, Patrik Dobert, Jan Wilke
AIM: Previous stretching studies mostly investigated effects on the skeletal muscle but comprehensive explorations regarding the role of the connective tissue are scarce. Since the deep fascia has been demonstrated to be sensitive to mechanical tension, it was hypothesized that the fascia would also respond to stretching, contributing to enhanced range of motion (ROM). METHODS: Forty (40) recreationally active participants (male: n = 25, female: n = 15) were included in the randomized controlled cross-over trial and allocated to different groups performing 5 min static (STAT) or dynamic (DYN) plantar flexor stretching or control condition (CC) in a random order...
April 30, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38683403/the-effect-of-chronotropic-incompetence-on-physiologic-responses-during-progressive-exercise-in-people-with-parkinson-s-disease
#15
JOURNAL ARTICLE
Tone Ricardo Benevides Panassollo, Sue Lord, Usman Rashid, Denise Taylor, Grant Mawston
PURPOSE: Heart rate (HR) response is likely to vary in people with Parkinson's disease (PD), particularly for those with chronotropic incompetence (CI). This study explores the impact of CI on HR and metabolic responses during cardiopulmonary exercise test (CPET) in people with PD, and its implications for exercise intensity prescription. METHODS: Twenty-eight participants with mild PD and seventeen healthy controls underwent CPET to identify the presence or absence of CI...
April 29, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38683402/applied-physiology-gut-microbiota-and-antimicrobial-therapy
#16
REVIEW
Andrey V Suslov, Alin Panas, Mikhail Y Sinelnikov, Roman V Maslennikov, Aleksandra S Trishina, Tatyana S Zharikova, Nataliya V Zharova, Dmitry V Kalinin, André Pontes-Silva, Yury O Zharikov
The gut microbiota plays an important role in maintaining human health and in the pathogenesis of several diseases. Antibiotics are among the most commonly prescribed drugs and have a significant impact on the structure and function of the gut microbiota. The understanding that a healthy gut microbiota prevents the development of many diseases has also led to its consideration as a potential therapeutic target. At the same time, any factor that alters the gut microbiota becomes important in this approach. Exercise and antibacterial therapy have a direct effect on the microbiota...
April 29, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38668851/measuring-critical-force-in-sport-climbers-a-validation-study-of-the-4%C3%A2-min-all-out-test-on-finger-flexors
#17
JOURNAL ARTICLE
Baláš Jiří, Gajdošík Jan, Javorský Tomáš, Berta Patrik, Feldmann Andri
PURPOSE: The critical force (CF) concept, differentiating steady and non-steady state conditions, extends the critical power paradigm for sport climbing. This study aimed to validate CF for finger flexors derived from the 4 min all-out test as a boundary for the highest sustainable work intensity in sport climbers. METHODS: Twelve participants underwent multiple laboratory visits. Initially, they performed the 4 min intermittent contraction all-out test for CF determination...
April 26, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38656379/strength-and-power-adaptations-of-the-upper-body-following-20-training-sessions-on-an-eccentric-arm-crank-ergometer
#18
JOURNAL ARTICLE
Claudio Perret, Matheo Käch, Anneke Hertig-Godeschalk, Fabian Ammann
PURPOSE: Eccentric strength training is an innovative and promising approach to improve exercise performance. However, most eccentric training studies in the past were performed with a focus on the lower extremities. The present study aimed to test the feasibility and effects on strength and power adaptations of a structured upper-body eccentric training program. METHODS: Fourteen (median age (Q1-Q3) 29 years (27-32); 9 females, 5 males) healthy, regularly exercising individuals performed 20 progressive training sessions (2-3 sessions/week at 20-50% peak power for 8-14 min) on a symmetric eccentric arm-crank ergometer...
April 24, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38656378/baroreflex-dynamics-during-the-rest-to-exercise-transient-in-acute-normobaric-hypoxia-in-humans
#19
JOURNAL ARTICLE
Anna Taboni, Nazzareno Fagoni, Timothée Fontolliet, Giovanni Vinetti, Guido Ferretti
PURPOSE: We hypothesised that during a rest-to-exercise transient in hypoxia (H), compared to normoxia (N), (i) the initial baroreflex sensitivity (BRS) decrease would be slower and (ii) the fast heart rate (HR) and cardiac output (CO) response would have smaller amplitude (A1 ) due to lower vagal activity in H than N. METHODS: Ten participants performed three rest-to-50 W exercise transients on a cycle-ergometer in N (ambient air) and three in H (inspired fraction of O2  = 0...
April 24, 2024: European Journal of Applied Physiology
https://read.qxmd.com/read/38653795/resistance-training-induced-changes-in-muscle-proteolysis-and-extracellular-matrix-remodeling-biomarkers-in-the-untrained-and-trained-states
#20
JOURNAL ARTICLE
Maíra C Scarpelli, João G A Bergamasco, Joshua S Godwin, Paulo H C Mesquita, Talisson S Chaves, Deivid G Silva, Diego Bittencourt, Nathalia F Dias, Ricardo A Medalha Junior, Paulo C Carello Filho, Vitor Angleri, Luiz A R Costa, Andreas N Kavazis, Carlos Ugrinowitsch, Michael D Roberts, Cleiton A Libardi
PURPOSE: Resistance training (RT) induces muscle growth at varying rates across RT phases, and evidence suggests that the muscle-molecular responses to training bouts become refined or attenuated in the trained state. This study examined how proteolysis-related biomarkers and extracellular matrix (ECM) remodeling factors respond to a bout of RT in the untrained (UT) and trained (T) state. METHODS: Participants (19 women and 19 men) underwent 10 weeks of RT...
April 23, 2024: European Journal of Applied Physiology
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