| Long-term swimming in an inescapable stressful environment attenuates the stimulatory effect of endurance swimming on duodenal calcium absorption in rats. | |
| | |
MedLine Citation:
|
PMID: 21858657 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Endurance swimming is known to increase duodenal calcium absorption in normal rats and bone strength in estrogen-deficient rats. Because the stress resulting from forced training often attenuates the stimulatory effect of exercise, swimming in an inescapable chamber should reveal both the positive effect of the exercise and the negative effect of stress. In the work reported herein, swimming rats showed no signs of stress during 2 weeks of training. However, stress response gradually developed thereafter and peaked at weeks 6 and 7. In rats swimming for 2 weeks, transcellular duodenal calcium transport was enhanced ~2-fold. In contrast, calcium absorption was reduced in rats swimming for 8 weeks, consistent with the absence of swimming-induced upregulation of calcium transporter genes in the 8-week group. In conclusion, prolonged stress hindered the stimulatory effect of swimming on duodenal calcium absorption, and thus endurance exercise should be performed without forced training or stress to retain its beneficial effect on calcium metabolism. |
| | |
Authors:
|
Narattaphol Charoenphandhu; Jarinthorn Teerapornpuntakit; Sarawut Lapmanee; Nitita Dorkkam; Nateetip Krishnamra; Jantarima Charoenphandhu |
Related Documents
:
|
20538217 - Greek traditional dances and quality of old people's life. 20030777 - An examination of serotonin and psychological variables in the relationship between exe... 15454357 - Effects of an oncologist's recommendation to exercise on self-reported exercise behavio... 15512337 - Umbilical artery flow velocity waveforms following maternal exercise. 18590417 - Autograft versus allograft with or without demineralized bone matrix in posterolateral ... 19022507 - The influence of a surfactant, linear alkylbenzene sulfonate, on the estrogenic respons... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-8-21 |
Journal Detail:
|
Title: The journal of physiological sciences : JPS Volume: - ISSN: 1880-6562 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
|
Created Date: 2011-8-22 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101262417 Medline TA: J Physiol Sci Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand, naratt@narattsys.com. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Carotid stenosis evaluation by 64-slice CTA: comparison of NASCET, ECST and CC grading methods.
Next Document: Properties of secreted protease from vegetative Trichoderma atroviride mycelia cultivated with prote...