Results 81 to 90 of about 1,013,844 (263)

Characteristics of power output during supramaximal cycle ergometer exercise in first- and third-grade male Japanese high school cyclists

Journal of Science and Cycling, 2020
Purpose: The purpose of this cross-sectional study was to clarify if there are differences in optimal load (Lopt; force factor), optimal cadence (Copt; velocity factor), and maximal anaerobic power (MAnP) between first- and third-grade high school ...
Tomohiro Nakamura
semanticscholar   +1 more source

Differences between genders in anaerobic capacity during a supramaximal effort

Motriz: Revista de Educacao Fisica, 2019
Aim: The present study aimed to verify if there is a difference between genders in anaerobic capacity estimated by energetic equivalents of glycolytic and phosphagen pathways (AC[La-]+EPOCfast).
Rodrigo A. B. de Poli, Joel A.M Gonzalez, Natalia Fonsati, Alessandro M. Zagatto   +3 more
doaj   +1 more source

Myths and methodologies: Invasive and non‐invasive assessment of respiratory muscle activity in humans

Experimental Physiology, EarlyView.
Abstract Survival relies on neural respiratory drive from the medullary respiratory centres to activate the respiratory muscles for breathing. Accurate assessment of respiratory muscle activity, as an estimate of neural respiratory drive in humans, will facilitate a greater understanding of respiratory physiology, the pathophysiology of diseases and ...
Anna L. Hudson, Caroline J. Jolley, Simon C. Gandevia, Jane E. Butler   +3 more
wiley   +1 more source

Effects of Acute Supramaximal Cycle Exercise on Plasma FFA Concentration in Obese Adolescent Boys. [PDF]

PLoS ONE, 2015
The aims of the present study are 1) to evaluate the free fatty acid (FFA) profile and 2) to determine the relative anaerobic and aerobic contributions to total energy consumption during repeated supramaximal cycling bouts (SCE) in adolescent boys with ...
Georges Jabbour, Horia-Daniel Iancu, Anne Paulin, Jean-Marc Lavoie, Sophie Lemoine-Morel, Hassane Zouhal   +5 more
doaj   +1 more source

Acute Supramaximal Exercise-Induced Adiponectin Increase in Healthy Volunteers: Involvement of Natriuretic Peptides

, 2017
Exercise may modulate lipolysis via leading to natriuretic peptide secretion and beta-adrenergic activation. Adiponectin, an adipose-secreted multifunctional signaling protein, may be the missing link between exercise and lipolytic activity.
Gülnur Öztürk, Oktay Kaya, E. Gürel, O. Palabıyık, H. Kunduracılar, N. Sut, L. Öztürk, Selma Arzu Vardarb   +7 more
semanticscholar   +1 more source

Cardiac output limits maximal oxygen consumption, but what limits maximal cardiac output?

Experimental Physiology, EarlyView.
Abstract Maximal oxygen uptake/consumption is an important variable determining exercise performance. It is generally considered to be limited largely, but not exclusively, by maximal cardiac output (CO), which limits the ability of heart to pump oxygen‐rich arterial blood to working muscles. Cardiac output is a product of heart rate and stroke volume,
Ilkka Heinonen
wiley   +1 more source

Reliability of Tibialis Anterior Muscle Voluntary Activation Using the Interpolated Twitch Technique and the Central Activation Ratio in People with Stroke

Brain Sciences, 2021
Voluntary activation (VA) is measured by applying supramaximal electrical stimulation to a muscle during a maximal voluntary contraction (MVC). The amplitude of the evoked muscle twitch is used to determine any VA deficit, and indicates incomplete ...
Sharon Olsen, Nada Signal, Imran Khan Niazi, Gemma Alder, Usman Rashid, Rasmus Bach Nedergaard, Denise Taylor   +6 more
doaj   +1 more source

Analysis of the PICUP Collection: Strengths and Areas for Development [PDF]

arXiv, 2021
The PICUP Collection of Exercise Sets (https://www.compadre.org/PICUP/exercises/) contains over 60 peer-reviewed computation-infused activities for use in various physics courses from high school through graduate study. Each Exercise Set includes an instructor guide, student-facing exercises, and sample implementations for one or more programming ...
arxiv  

Effects of neuromuscular electrical stimulation on voluntary muscle activation and peripheral muscle contractility following short‐term bed rest

Experimental Physiology, EarlyView.
Abstract Disuse induces a disproportionate loss of muscle force compared with muscle mass, with unclear effects on voluntary muscle activation (VA) and peripheral contractility. Furthermore, the effect of neuromuscular electrical stimulation (NMES) as a disuse countermeasure remains uncertain.
Sofie K. Hansen, Pernille Hansen, Tania W. Berry, Hans D. Grønbæk, Camilla M. Olsen, Youssif Merhi, Shweta Agarwala, Per Aagaard, Lars G. Hvid, Jakob Agergaard, Flemming Dela, Charlotte Suetta   +11 more
wiley   +1 more source

Optogenetic methods to stimulate gamma motor neuron axons ex vivo

Experimental Physiology, EarlyView.
Abstract It is challenging to stimulate gamma motor neurons, which are important regulators of muscle spindle afferent function, without also recruiting alpha motor neurons. Here, we test the feasibility of stimulating gamma motor neuron axons using optogenetics in two transgenic mouse lines. We used an ex vivo muscle–nerve preparation in adult mice to
Apoorva Karekal, Remie Mandawe, Cameron Chun, Sai Kiran Byri, Danitza Cheline, Serena Ortiz, Shawn Hochman, Katherine A. Wilkinson   +7 more
wiley   +1 more source