Sympathetic limitation of exercise hyperemia: even hypoperfused muscle is not exempted
نویسندگان
چکیده
منابع مشابه
Sympathetic limitation of exercise hyperemia: even hypoperfused muscle is not exempted
Exercise requires major adjustments in cardiovascular performance to accommodate the large increases in blood flow to active skeletal muscle groups. These cardiovascular adjustments involve alterations in autonomic control, most notably an increase in sympathetic activity, that act not only to increase cardiac output but also redistribute blood flow away from visceral organs and inactive skelet...
متن کاملReactive hyperemia is not responsible for stimulating muscle protein synthesis following blood flow restriction exercise.
Blood flow restriction (BFR) to contracting skeletal muscle during low-intensity resistance exercise training increases muscle strength and size in humans. However, the mechanism(s) underlying these effects are largely unknown. We have previously shown that mammalian target of rapamycin complex 1 (mTORC1) signaling and muscle protein synthesis (MPS) are stimulated following an acute bout of BFR...
متن کاملThe role of muscle mass in exercise-induced hyperemia.
Exercise-induced hyperemia is often normalized for muscle mass, and this value is sometimes evaluated at relative exercise intensities to take muscle recruitment into account. Therefore, this study sought to better understand the impact of muscle mass on leg blood flow (LBF) during exercise. LBF was assessed by Doppler ultrasound in 27 young healthy male subjects performing knee-extensor (KE) e...
متن کاملMuscle dysfunction and exercise limitation in adolescent idiopathic scoliosis.
Adolescent idiopathic scoliosis (AIS) can lead to ventilatory restriction, respiratory muscle weakness and exercise limitation. However, both the causes and the extent of muscle dysfunction remain unclear. The aim of our study is to describe muscle weakness and its relationship to lung function and tolerance to exercise in AIS patients. Lung and muscle function, together with exercise capacity,...
متن کاملDynamic exercise attenuates sympathetic responsiveness of canine vascular smooth muscle.
The phenomenon of reduced responsiveness of the skeletal muscle arterial vasculature to sympathetic activation during exercise (sympatholysis) remains controversial. The purpose of this study was to examine the vascular effects of sympathoactivation in dynamically exercising skeletal muscle. Mongrel dogs (19-24 kg) were instrumented chronically with transit-time ultrasonic flow probes on the ex...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2012
ISSN: 1664-042X
DOI: 10.3389/fphys.2012.00411