Comparison of the effects of acute exercise after overnight fasting and breakfast on energy substrate and hormone levels in obese men. (bibtex)
by Tae Woon Kim, Sang Hoon Lee, Kyu Hwan Choi, Dong Hyun Kim and Tae Kyung Han
Abstract:
$[$Purpose$]$ We compared the effects of acute aerobic exercise following overnight fasting and breakfast on energy substrate and hormone levels in obese male college students. [Subjects and Methods] This crossover study recruited 10 obese male college students with a body mass index >25 kg/m(2) or >20% body fat. One week post-recruitment, the subjects exercised in the morning after an overnight fast. At 2 weeks, they exercised post-breakfast. Energy substrate (glucose, free fatty acid) and metabolic hormone (insulin, growth hormone, and cortisol) levels were measured immediately before and after exercise and at 60 min post-exercise. [Results] We observed interaction effects between the measurement time and exercise treatment for glucose; significant differences between measurement times and between exercise treatments for free fatty acids; interaction effects between the measurement time and exercise treatment for insulin and significant differences in the measurement time; significance differences between measurement times and between exercise treatments for growth hormone; and significant differences between measurement times and between exercise treatments for cortisol. [Conclusion] Morning exercise following an overnight fast can be more effective in reducing body fat than post-prandial exercise. However, increased cortisol levels following exercise after overnight fasting may negatively affect long-term weight loss in obese men.
Reference:
Comparison of the effects of acute exercise after overnight fasting and breakfast on energy substrate and hormone levels in obese men. (Tae Woon Kim, Sang Hoon Lee, Kyu Hwan Choi, Dong Hyun Kim and Tae Kyung Han), In J Phys Ther Sci, volume 27, 2015.
Bibtex Entry:
@article{Kim:2015aa,
	abstract = {{$[$}Purpose{$]$} We compared the effects of acute aerobic exercise following overnight fasting and breakfast on energy substrate and hormone levels in obese male college students. [Subjects and Methods] This crossover study recruited 10 obese male college students with a body mass index >25 kg/m(2) or >20% body fat. One week post-recruitment, the subjects exercised in the morning after an overnight fast. At 2 weeks, they exercised post-breakfast. Energy substrate (glucose, free fatty acid) and metabolic hormone (insulin, growth hormone, and cortisol) levels were measured immediately before and after exercise and at 60 min post-exercise. [Results] We observed interaction effects between the measurement time and exercise treatment for glucose; significant differences between measurement times and between exercise treatments for free fatty acids; interaction effects between the measurement time and exercise treatment for insulin and significant differences in the measurement time; significance differences between measurement times and between exercise treatments for growth hormone; and significant differences between measurement times and between exercise treatments for cortisol. [Conclusion] Morning exercise following an overnight fast can be more effective in reducing body fat than post-prandial exercise. However, increased cortisol levels following exercise after overnight fasting may negatively affect long-term weight loss in obese men.},
	address = {Department of Physiology, College of Medicine, Kyung Hee University, Republic of Korea.; School of Sport Science, Sungkyunkwan University, Republic of Korea.; School of Sport Science, Sungkyunkwan University, Republic of Korea.; School of Sport Science, Sungkyunkwan University, Republic of Korea.; School of Protection Science, Kyungwoon University, Republic of Korea.},
	author = {Kim, Tae Woon and Lee, Sang Hoon and Choi, Kyu Hwan and Kim, Dong Hyun and Han, Tae Kyung},
	crdt = {2015/07/17 06:00},
	date = {2015 Jun},
	date-added = {2023-01-02 19:37:06 +0000},
	date-modified = {2023-01-08 11:49:20 +0000},
	dcom = {20150716},
	dep = {20150630},
	doi = {10.1589/jpts.27.1929},
	edat = {2015/07/17 06:00},
	issn = {0915-5287 (Print); 2187-5626 (Electronic); 0915-5287 (Linking)},
	jid = {9105359},
	journal = {J Phys Ther Sci},
	jt = {Journal of physical therapy science},
	keywords = {Energy, Exercise},
	language = {eng},
	lid = {10.1589/jpts.27.1929 {$[$}doi{$]$}},
	lr = {20200930},
	mhda = {2015/07/17 06:01},
	month = {Jun},
	number = {6},
	oto = {NOTNLM},
	own = {NLM},
	pages = {1929--1932},
	phst = {2015/02/13 00:00 {$[$}received{$]$}; 2015/03/07 00:00 {$[$}accepted{$]$}; 2015/07/17 06:00 {$[$}entrez{$]$}; 2015/07/17 06:00 {$[$}pubmed{$]$}; 2015/07/17 06:01 {$[$}medline{$]$}},
	pii = {jpts-2015-098},
	pl = {Japan},
	pmc = {PMC4500013},
	pmid = {26180350},
	pst = {ppublish},
	pt = {Journal Article},
	status = {PubMed-not-MEDLINE},
	title = {Comparison of the effects of acute exercise after overnight fasting and breakfast on energy substrate and hormone levels in obese men.},
	volume = {27},
	year = {2015},
	bdsk-url-1 = {https://doi.org/10.1589/jpts.27.1929}}
Powered by | 🌱 NELSON TAVARES