Haematological, inflammatory, and immunological responses in elite judo athletes maintaining high training loads during Ramadan

Chaouachi, A; Coutts, A; Wong, D; Roky, R; Mbazaa, A; Amri, M; Chamari, K

Haematological, inflammatory, and immunological responses in elite judo athletes maintaining high training loads during Ramadan

Chaouachi, A Coutts, A Wong, D Roky, R Mbazaa, A Amri, M Chamari, K

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Publisher:: NRC Research Press
Publication Type:: Journal Article
Citation:: Chaouachi Anis et al. 2009, 'Haematological, inflammatory, and immunological responses in elite judo athletes maintaining high training loads during Ramadan', NRC Research Press, vol. 34, no. 5, pp. 907-915.
Issue Date:: 2009

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Field	Value	Language
dc.contributor.author	Chaouachi, A	en_US
dc.contributor.author	Coutts, A	en_US
dc.contributor.author	Wong, D	en_US
dc.contributor.author	Roky, R	en_US
dc.contributor.author	Mbazaa, A	en_US
dc.contributor.author	Amri, M	en_US
dc.contributor.author	Chamari, K	en_US
dc.date.accessioned	2011-02-07T06:24:59Z
dc.date.available	2011-02-07T06:24:59Z
dc.date.issued	2009	en_US
dc.identifier	2009007176	en_US
dc.identifier.citation	Chaouachi Anis et al. 2009, 'Haematological, inflammatory, and immunological responses in elite judo athletes maintaining high training loads during Ramadan', NRC Research Press, vol. 34, no. 5, pp. 907-915.	en_US
dc.identifier.issn	1715-5320	en_US
dc.identifier.other	C1	en_US
dc.identifier.uri	http://hdl.handle.net/10453/13818
dc.description.abstract	During Ramadan, Muslims abstain from food and fluid intake from dawn to sunset for 1 month. These behavioural changes that accompany Ramadan may impact upon Muslim athletes who continue to train intensely. The aim of the present study was to evaluate the effect of Ramadan intermittent fasting (RIF) on the haematological, inflammatory, and immunological measures in elite judo athletes maintaining their usual high training loads. Haematological markers of inflammation, hormones, and immune status were studied in 15 elite male judo athletes before, during, and after Ramadan. The RIF produced small but significant changes in inflammatory, hormonal, and immunological profiles in judo athletes. Serum C-reactive protein increased from 2.93 +/- 0.26 mg.L-1 pre-Ramadan to 4.60 +/- 0.51 mg.L-1 at the end of Ramadan. Haptoglobin and antitrypsin also significantly increased at different phases during Ramadan, whereas homocysteine and prealbumin remained relatively unchanged. Albumin decreased slightly by mid-Ramadan, then recovered. Immunoglobulin Aincreased from 1.87 +/- 0.56 g.L-1 before Ramadan to 2.49 +/- 0.75 g.L-1 at the end, and remained high 3 weeks after. There were no changes in the leucocyte cell counts throughout the study. The mean blood level of thyroid-stimulating hormone and free thyroxine increased significantly during RIF. Most of these changes were within the normal ranges. These results suggest that athletes who continue to train intensely during Ramadan are liable to experience a myriad of small fluctuations in hormones, immunoglobulins, antioxidants, and inflammatory responses.	en_US
dc.publisher	NRC Research Press	en_US
dc.relation.ispartof	Applied Physiology, Nutrition, and Metabolism	en_US
dc.relation.ispartof	Verified OK	en_US
dc.relation.isbasedon	http://dx.doi.org/10.1139/H09-095	en_US
dc.subject	elite athletes intensive training intermittent fasting nutrition alimentation athlètes d'élite entraînement intensif jeûne intermittent	en_US
dc.subject.classification	Exercise Physiology	en_US
dc.title	Haematological, inflammatory, and immunological responses in elite judo athletes maintaining high training loads during Ramadan	en_US
dc.type	Journal article
utslib.citation.volume	34	en_US
utslib.citation.number	5	en_US
utslib.location	Ottawa, Canada	en_US
utslib.citation.startpage	907	en_US
utslib.citation.endpage	915	en_US
utslib.identifier.org	BUS.School of Leisure, Sport and Tourism	en_US
utslib.for	110602	en_US
utslib.percentage	000100	en_US
utslib.copyright.status	closed_access

Abstract:

During Ramadan, Muslims abstain from food and fluid intake from dawn to sunset for 1 month. These behavioural changes that accompany Ramadan may impact upon Muslim athletes who continue to train intensely. The aim of the present study was to evaluate the effect of Ramadan intermittent fasting (RIF) on the haematological, inflammatory, and immunological measures in elite judo athletes maintaining their usual high training loads. Haematological markers of inflammation, hormones, and immune status were studied in 15 elite male judo athletes before, during, and after Ramadan. The RIF produced small but significant changes in inflammatory, hormonal, and immunological profiles in judo athletes. Serum C-reactive protein increased from 2.93 +/- 0.26 mg.L-1 pre-Ramadan to 4.60 +/- 0.51 mg.L-1 at the end of Ramadan. Haptoglobin and antitrypsin also significantly increased at different phases during Ramadan, whereas homocysteine and prealbumin remained relatively unchanged. Albumin decreased slightly by mid-Ramadan, then recovered. Immunoglobulin Aincreased from 1.87 +/- 0.56 g.L-1 before Ramadan to 2.49 +/- 0.75 g.L-1 at the end, and remained high 3 weeks after. There were no changes in the leucocyte cell counts throughout the study. The mean blood level of thyroid-stimulating hormone and free thyroxine increased significantly during RIF. Most of these changes were within the normal ranges. These results suggest that athletes who continue to train intensely during Ramadan are liable to experience a myriad of small fluctuations in hormones, immunoglobulins, antioxidants, and inflammatory responses.

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http://hdl.handle.net/10453/13818