Editing Exercise physiology (section)

== Exercise-induced muscle pain ==
Physical exercise may cause pain both as an immediate effect that may result from stimulation of [[free nerve endings]] by low pH, as well as a [[delayed onset muscle soreness]]. The delayed soreness is fundamentally the result of ruptures within the muscle, although apparently not involving the rupture of whole [[muscle fiber]]s.<ref>{{Cite book |last=Nosaka |first=Ken |title=Skeletal muscle damage and repair |publisher=[[Human Kinetics]] |year=2008 |isbn=978-0-7360-5867-4 |editor-last=Tiidus, Peter M |pages=59–76 |chapter=Muscle Soreness and Damage and the Repeated-Bout Effect |chapter-url=https://books.google.com/books?id=ueMh1x7kFjsC&pg=PA59}}</ref>

Muscle pain can range from a mild soreness to a debilitating injury depending on intensity of exercise, level of training, and other factors.<ref>{{Cite journal |last=Cheung |first=Karoline |last2=Hume |first2=Patria A. |author-link2=Patria Hume |last3=Maxwell |first3=Linda |date=2012-10-23 |title=Delayed Onset Muscle Soreness |journal=Sports Medicine |language=en |volume=33 |issue=2 |pages=145–164 |doi=10.2165/00007256-200333020-00005 |issn=0112-1642 |pmid=12617692 |s2cid=26525519}}</ref>

There is some preliminary evidence to suggest that moderate intensity continuous training has the ability to increase someone's pain threshold.<ref>{{Cite journal |last=Hakansson |first=S. |last2=Jones |first2=M. D. |last3=Ristov |first3=M. |last4=Marcos |first4=L. |last5=Clark |first5=T. |last6=Ram |first6=A. |last7=Morey |first7=R. |last8=Franklin |first8=A. |last9=McCarthy |first9=C. |date=2018 |title=Intensity-dependent effects of aerobic training on pressure pain threshold in overweight men: A randomized trial |url=https://unsworks.unsw.edu.au/bitstreams/d22bea57-8887-436d-ad69-2de9f86f7b49/download |journal=European Journal of Pain |language=en |volume=22 |issue=10 |pages=1813–1823 |doi=10.1002/ejp.1277 |issn=1532-2149 |pmid=29956398 |s2cid=49602409 |hdl-access=free |hdl=1959.4/unsworks_83572}}</ref>