Show simple item record

dc.contributor.authorKalafati, Maria
dc.contributor.authorJamurtas, Ath
dc.contributor.authorNikolaidis, Michalis G.
dc.contributor.authorPaschalis, Vassilis
dc.contributor.authorTheodorou, Anastasios A.
dc.contributor.authorSakellariou, G. K.
dc.contributor.authorKoutedakis, Yiannis
dc.contributor.authorKouretas, Dimitrios
dc.creatorKalafati, Maria
dc.date.accessioned2018-12-05T11:33:08Z
dc.date.available2018-12-05T11:33:08Z
dc.date.issued2010-01-01
dc.identifierSCOPUS_ID:73449122238
dc.identifier.issn01959131
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=73449122238&origin=inward
dc.identifier.urihttps://repo.euc.ac.cy/handle/123456789/1135
dc.description.abstractPURPOSE: Spirulina is a popular nutritional supplement that is accompanied by claiMSS for antioxidant and performance-enhancing effects. Therefore, the aim of the present study was to examine the effect of spirulina supplementation on (i) exercise performance, (ii) substrate metabolism, and (iii) blood redox status both at rest and after exercise. METHODS: Nine moderately trained males took part in a double-blind, placebo-controlled, counterbalanced crossover study. Each subject received either spirulina (6 g•d) or placebo for 4 wk. Each subject ran on a treadmill at an intensity corresponding to 70%-75% of their V̇O2max for 2 h and then at 95% V̇O2max to exhaustion. Exercise performance and respiratory quotient during exercise were measured after both placebo and spirulina supplementation. Blood samples were drawn before, immediately after, and at 1, 24, and 48 h after exercise. Reduced glutathione (GSH), oxidized glutathione (GSSG), GSH/GSSG, thiobarbituric acid-reactive substances (TBARS), protein carbonyls, catalase activity, and total antioxidant capacity (TAC) were determined. RESULTS: Time to fatigue after the 2-h run was significantly longer after spirulina supplementation (2.05 ± 0.68 vs 2.70 ± 0.79 min). Ingestion of spirulina significantly decreased carbohydrate oxidation rate by 10.3% and increased fat oxidation rate by 10.9% during the 2-h run compared with the placebo trial. GSH levels were higher after the spirulina supplementation compared with placebo at rest and 24 h after exercise. TBARS levels increased after exercise after placebo but not after spirulina supplementation. Protein carbonyls, catalase, and TAC levels increased similarly immediately after and 1 h after exercise in both groups. CONCLUSIONS: Spirulina supplementation induced a significant increase in exercise performance, fat oxidation, and GSH concentration and attenuated the exercise-induced increase in lipid peroxidation.
dc.relation.ispartofMedicine and Science in Sports and Exercise
dc.titleErgogenic and antioxidant effects of spirulina supplementation in humans
elsevier.identifier.doi10.1249/MSS.0b013e3181ac7a45
elsevier.identifier.eid2-s2.0-73449122238
elsevier.identifier.scopusidSCOPUS_ID:73449122238
elsevier.volume42
elsevier.issue.identifier1
elsevier.coverdate2010-01-01
elsevier.coverdisplaydateJanuary 2010
elsevier.openaccess1
elsevier.openaccessflagtrue
elsevier.aggregationtypeJournal


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record