Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Book

Exercise Physiology

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
Affiliations
Free Books & Documents
Book

Exercise Physiology

Parth N. Patel et al.
Free Books & Documents

Excerpt

Exercise produces significant increases in the body's demand for energy compared to its resting state. While at rest, the autonomic nervous system tends to favor a parasympathetic tone, which reduces the respiratory and heart rate. The sympathetic nervous system is activated during exercise, resulting in an integrated response that helps maintain an appropriate level of homeostasis to meet the increased demand in cellular metabolism.

PubMed Disclaimer

Conflict of interest statement

Disclosure: Parth Patel declares no relevant financial relationships with ineligible companies.

Disclosure: Maria Horenstein declares no relevant financial relationships with ineligible companies.

Disclosure: Hallie Zwibel declares no relevant financial relationships with ineligible companies.

References

    1. Ferretti G, Fagoni N, Taboni A, Vinetti G, di Prampero PE. A century of exercise physiology: key concepts on coupling respiratory oxygen flow to muscle energy demand during exercise. Eur J Appl Physiol. 2022 Jun;122(6):1317-1365. - PMC - PubMed
    1. Lavie CJ, Ozemek C, Carbone S, Katzmarzyk PT, Blair SN. Sedentary Behavior, Exercise, and Cardiovascular Health. Circ Res. 2019 Mar;124(5):799-815. - PubMed
    1. Bird SR, Hawley JA. Update on the effects of physical activity on insulin sensitivity in humans. BMJ Open Sport Exerc Med. 2016;2(1):e000143. - PMC - PubMed
    1. Wang Z, Raunser S. Structural Biochemistry of Muscle Contraction. Annu Rev Biochem. 2023 Jun 20;92:411-433. - PubMed
    1. Martin AA, Thompson BR, Davis JP, Vang H, Hahn D, Metzger JM. Sarcomere dynamics revealed by a myofilament integrated FRET-based biosensor in live skeletal muscle fibers. Sci Rep. 2022 Oct 27;12(1):18116. - PMC - PubMed

Publication types

LinkOut - more resources