Results 211 to 220 of about 17,684 (282)

Small muscle mass aerobic exercise in health and disease: Unique insights into muscle vascular and metabolic control and performance

open access: yesExperimental Physiology, EarlyView.
Abstract Studies of small muscle mass exercise (SMME) have revealed that the peripheral O2 transport–utilization cascade is a dynamically regulated system in which perfusive and diffusive components can be selectively amplified, redistributed and mechanically limited depending on contraction pattern, recruitment strategy and intramuscular pressure ...
Shunsaku Koga   +4 more
wiley   +1 more source

A comparison of the neuromuscular, cardiopulmonary and muscle oxygenation responses to single‐ and double‐leg cycling in older adults

open access: yesExperimental Physiology, EarlyView.
Abstract Previous work in younger adults has shown that during small muscle mass exercise, the tolerable degree of neuromuscular impairment at task failure is greater than during large muscle mass exercise. However, no study has compared the neuromuscular responses to small and large muscle mass exercise whilst matching exercise modality in older ...
Emily Dodd, Callum G. Brownstein
wiley   +1 more source

Effects of 14 days of head‐down bed rest with or without exercise, and subsequent recovery on bone turnover, density and structure in older adults

open access: yesExperimental Physiology, EarlyView.
Abstract Bed rest accelerates bone loss and may exacerbate skeletal fragility. This study examined the effects of 14 days of head‐down tilt bed rest (HDBR) with or without exercise, and subsequent recovery, on bone turnover, density and structure in older adults. Twenty‐two healthy older adults (55–65 years) completed the HDBR protocol.
Guy Hajj‐Boutros   +11 more
wiley   +1 more source

Physiological mechanisms underlying enhanced performance with blood flow restriction training: neuromuscular, vascular and metabolic adaptations

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend We investigated how 6 weeks of dynamic knee‐extensor interval training with blood flow restriction (BFR‐leg) and without (CTRL‐leg) impacts performance and its mechanisms using non‐invasive methods. Specifically, we used gold‐standard methods to assess neuromuscular function, vascular function using Doppler ultrasound, and near ...
Colin Lavigne   +5 more
wiley   +1 more source

Breathing irregularities and postnatal hypoxaemia in an experimental model of essential hypertension

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Neonatal spontaneously hypertensive rats (SHRs) exhibit inherent respiratory dysfunction in early life, including oscillatory breathing patterns and apnoeic events that cause oxygen desaturation and brain hypoxia, in addition to an impaired hypoxic ventilatory response.
Beatriz N. Vieira   +7 more
wiley   +1 more source

Regimen‐dependent glucocorticoid effects improve muscle performance without altering CNS physiology in mdx mice

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Defining glucocorticoid efficacy in Duchenne muscular dystrophy requires assessment across muscle, central nervous system (CNS), cardiovascular and systemic domains. Here, juvenile mdx mice were treated over 6 weeks, comparing daily and weekly dosing of prednisolone and vamorolone.
Gretel S. Major   +4 more
wiley   +1 more source

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