Results 31 to 40 of about 86,151 (303)

Inspiratory muscle training abolishes the blood lactate increase associated with volitional hyperpnoea superimposed on exercise and accelerates lactate and oxygen uptake kinetics at the onset of exercise

, 2011
We examined the effects of inspiratory muscle training (IMT) upon volitional hyperpnoea-mediated increases in blood lactate ([lac−]B) during cycling at maximal lactate steady state (MLSS) power, and blood lactate and oxygen uptake kinetics at the onset ...
Brown, PI, Johnson, Michael A., Graham R. Sharpe, Johnson, MA, Brown, Peter I., Michael A. Johnson, Peter I. Brown, Sharpe, GR, Sharpe, Graham R.   +8 more
core   +1 more source

Correlation of maximal respiratory exchange ratio with anaerobic power and maximal oxygen uptake in anaerobic trained athletes

Pedagogy of Physical Culture and Sports, 2021
Background and Study Aim. The respiratory exchange ratio (RER) is the ratio of the amount of carbon dioxide produced (VCO2) to the amount of oxygen uptake (VO2) is important.
Selcen Korkmaz Eryılmaz, Metin Polat
doaj   +1 more source

Cardiopulmonary function during exercise in heart failure with reduced ejection fraction following baroreflex activation therapy

Therapeutic Advances in Cardiovascular Disease, 2022
Purpose: Baroreflex activation therapy has favorable effects in heart failure patients. We report the results of a single-center study of baroreflex activation therapy in heart failure with reduced ejection fraction including cardiopulmonary exercise ...
Pia I. Nottebohm, Daniel Dumitrescu, Stefanie Hamacher, Christopher Hohmann, Navid Madershahian, Stephan Baldus, Hannes Reuter, Marcel Halbach   +7 more
doaj   +1 more source

Oxygen Uptake in Maximal Effort Constant Rate and Interval Running

The Scientific World Journal, 2013
This study investigated differences in average of maximal effort interval running to maximal effort constant rate running at lactate threshold matched for time.
Daniel Pratt, Brendan J. O'Brien, Bradley Clark   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Performance-Determining Variables of a Simulated Skimo Sprint Competition in Elite Junior Skimo Athletes

Applied Sciences
This study aimed to investigate the variables determining performance in a simulated on-snow Skimo sprint competition, and how their relationship with performance evolves from the individual time trial to the final.
Carl-Maximilian Wagner, Daniel Röhrs, Øyvind Sandbakk, Andreas Katz, Andreas Wittke, Michael Keiner   +5 more
doaj   +1 more source

Agreement analysis between critical power and intensity corresponding to 50% in cycling exercise

Revista Brasileira de Cineantropometria e Desempenho Humano, 2016
The purpose of this study was to determine the level of agreement between critical power (CP) and intensity corresponding to 50% of the difference (50% Δ) between oxygen uptake (VO2) at lactate threshold (LT) and maximal oxygen uptake (VO2max) in ...
Kristopher Mendes de Souza, Ricardo Dantas de Lucas, Paulo Cesar do Nascimento Salvador, Lucas Crescenti Abdalla Saad Helal, Luiz Guilherme Antonacci Guglielmo, Camila Coelho Greco, Benedito Sérgio Denadai   +6 more
doaj   +1 more source

Single and Especially Multisport Participation May Increase Physical Fitness in Younger Americans

Sports, 2022
Background: We sought to examine the associations between sports participation and physical fitness in younger Americans. Methods: The analytic sample included 1108 Americans aged 6–15 years.
Jenny Linker, Bradford Strand, Joe Deutsch, Seungmin Kang, Kelsey Slater, Alaina Driscoll, Ryan McGrath   +6 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Validity of a squash-specific fitness test [PDF]

, 2009
Purpose: This study examined the validity of a squash-specific test designed to assess endurance capability and aerobic power. Methods: Eight squash players and eight runners performed, in a counterbalanced order, incremental treadmill (TT) and squash ...
Wilkinson, Mick, Leedale-Brown, Damon, Leedale-Brown, D., Wilkinson, M., Winter, Edward, Winter, E.   +5 more
core