Skeletal muscle energy metabolism during exercise - Nature
2020年8月3日 · To meet the increased energy needs of exercise, skeletal muscle has a variety of metabolic pathways that produce ATP both anaerobically (requiring no oxygen) and aerobically.
Oxidative Energy Sources •Oxidative catabolism can provide ATP for hours, as long as oxygen and fuels are available, after only 1 minute of skeletal muscle activity it is the predominant source of ATP for almost all muscle fibers. •After several minutes, nearly 100% of the ATP is produced is by this aerobic process © 2016 Pearson Education ...
Skeletal muscle metabolism – Basic Human Physiology
Describe the sources of ATP (e.g., glycolysis, oxidative phosphorylation, creatine phosphate) that muscle fibers use for skeletal muscle contraction. Explain the factors that are believed to contribute to skeletal muscle fatigue. Compare and contrast the metabolism of skeletal muscle with that of cardiac and smooth muscle.
Skeletal muscle energy metabolism during exercise - PubMed
The continual supply of ATP to the fundamental cellular processes that underpin skeletal muscle contraction during exercise is essential for sports performance in events lasting seconds to several hours. Because the muscle stores of ATP are small, metabolic pathways must be activated to maintain the …
The Molecular Mechanisms of Fuel Utilization during Exercise
During exercise, skeletal muscle primarily relies on various fuel sources to meet its energy demands. Glucose, lipids, and, to a lesser extent, amino acids are the key contributors to this energy production [10].
Skeletal muscle: energy metabolism, fiber types, fatigue and ...
2010年11月1日 · We first outline the major energy metabolism pathways in skeletal muscle. Next we describe metabolic differences between different muscle fiber types. Contractile performance declines during intense activation, i.e. fatigue develops, and …
The continual supply of ATP to the fundamental cellular processes that underpin skeletal muscle contraction during exercise is essential for sports performance in events lasting seconds to...
Exercise Metabolism and the Molecular Regulation of Skeletal Muscle ...
2013年2月5日 · At low-to-moderate intensities of exercise, the primary fuel sources supplying skeletal muscle are glucose, derived from hepatic glycogenolysis (or gluconeogenesis) or oral ingestion, and free fatty acids (FFAs) liberated by adipose tissue lipolysis.
Energy demand and supply in human skeletal muscle
2017年3月12日 · Descriptions of muscle energetics typically refer to “energy supply systems” that include four biochemical processes for supplying energy in contracting muscle: (i) breakdown of ATP, (ii) breakdown of phosphocreatine (PCr), (iii) generation of ATP by anaerobic glycolysis, and (iv) generation of ATP by oxidative phosphorylation.
Exercise metabolism and adaptation in skeletal muscle
2023年5月24日 · In this Review, we provide a contemporary view of the metabolic flexibility and functional plasticity of skeletal muscle in response to exercise. First, we provide background on the...