Results 61 to 70 of about 9,871 (246)

Usefulness of Portable Device to Establish Differences in Muscle Oxygenation Between the Wingate Test and Graded Exercise Test: Effect of Gender on Anaerobic and Aerobic Capacity in Speed Skaters

open access: yesFrontiers in Physiology, 2022
The aim of this study was to compare the oxygenation response in the vastus lateralis muscle (SmO2) in two types of tests: supramaximal and maximal. Furthermore, gender differences in SmO2 response to test exercise were assessed and the usefulness of ...
Kinga Rębiś   +4 more
doaj   +1 more source

Research into the Health Benefits of Sprint Interval Training Should Focus on Protocols with Fewer and Shorter Sprints [PDF]

open access: yes, 2017
Over the past decade, it has been convincingly shown that regularly performing repeated brief supramaximal cycle sprints (sprint interval training [SIT]) is associated with aerobic adaptations and health benefits similar to or greater than with moderate ...
A Katz   +86 more
core   +2 more sources

MRI of Neurogenic Human Motor Units Following Poliomyelitis

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims Surviving motor units in neurogenic diseases demonstrate collateral reinnervation. Scanning electromyography (EMG) reveals normal motor unit corridor length, but with “silent regions,” suggesting that reinnervation does not result in increased motor unit size but may increase motor unit complexity.
Stuart Maitland   +6 more
wiley   +1 more source

Estimation of Cerebral Hemodynamics and Oxygenation During Various Intensities of Rowing Exercise: An NIRS Study

open access: yesFrontiers in Physiology, 2022
PurposeThis study aimed to investigate changes in cerebral hemodynamics and oxygenation at moderate, heavy, maximal and supramaximal intensities of rowing exercise.
Mikio Hiura   +5 more
doaj   +1 more source

Effects of exercise-induced arterial hypoxemia on limb muscle fatigue and performance [PDF]

open access: yes, 2006
1. Reductions in arterial O2 saturation (−5% to −10% SaO2 below rest) occur over time during sustained heavy-intensity exercise in a normoxic environment, caused primarily by the effects of acid pH and increased temperature on the position of the ...
Dempsey, JA, Romer, LM
core  

The acute effect of maximal exercise on central and peripheral arterial stiffness indices and hemodynamics in children and adults [PDF]

open access: yes, 2016
Xavier Melo is supported by a research grant from the Foundation for Science and Technology (FCT), Ministry of Education and Science of Portugal (grant: SFRH/ BD/ 70515/ 2010). Nuno M.
Fernhall, Bo   +6 more
core   +1 more source

Optimal Site of the Reference Electrode for Recording the Compound Muscle Action Potential of the Deltoid Muscle

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims For recording the compound muscle action potential (CMAP) of the deltoid muscle, the reference electrode over the acromion (Ac) has been used to avoid contamination of responses from other arm muscles to the distal tendon (DT). A recent article recommended the sternum (St) as the reference electrode.
Yuichi Hamada   +5 more
wiley   +1 more source

ERS statement on standardisation of cardiopulmonary exercise testing in chronic lung diseases [PDF]

open access: yes, 2019
The objective of this document was to standardise published cardiopulmonary exercise testing (CPET) protocols for improved interpretation in clinical settings and multicentre research projects.
Aguilaniu   +88 more
core   +5 more sources

Electrophysiological Changes in Pediatric Spinal Muscular Atrophy: Results From an Observational Study

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Introduction/Aims Previous studies of children with spinal muscular atrophy (SMA) have focused on the ulnar and median nerves, while lower‐limb and proximal motor nerves remain insufficiently characterized. This study aimed to evaluate compound muscle action potential (CMAP) amplitudes in upper‐ and lower‐limb motor nerves in children with SMA
Ruidi Sun   +8 more
wiley   +1 more source

Effects of Low Cell pH and Elevated Inorganic Phosphate on the pCa-Force Relationship in Single Muscle Fibers at Near-Physiological Temperatures [PDF]

open access: yes, 2014
Intense muscle contraction induces high rates of ATP hydrolysis with resulting increases in Pi, H+, and ADP, factors thought to induce fatigue by interfering with steps in the cross-bridge cycle.
Fitts, Robert H., Nelson, Cassandra R.
core   +2 more sources

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