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Effect of acute ramadan fasting on muscle function and buffering system of male athletes

2021Journal article Open access
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dc.contributor.authorFashi, Mohamad
dc.contributor.authorAhmadizad, Sajad
dc.contributor.authorNobari, Hadi
dc.contributor.authorPérez-Gómez, Jorge
dc.contributor.authorOliveira, Rafael
dc.contributor.authorCarlos-Vivas, Jorge
dc.contributor.authorArdigò, Luca Paolo
dc.date.accessioned2021-08-14T17:11:56Z
dc.date.available2021-08-14T17:11:56Z
dc.date.issued2021
dc.description.abstractThe aim of this study was to investigate the effect of acute Ramadan fasting (RF) on the muscle function and buffering system. Twelve male athletes with 8 years of professional sports experience (age, 23.2 ± 1.3 years, body mass index: 24.2 ± 2.2 kg/m2) participated in this study. The subjects were tested twice, 3 weeks after the beginning of RF and 2 weeks after the end RF. Muscle function, buffering capacity, and rating of perceived exertion (RPE) were measured during and after RF by using the Biodex isokinetic machine, blood gas analyzer, and RPE 6-20 Borg scale, respectively. Venous blood samples for pH and bicarbonate (HCO3-) were measured during and after RF by using the Biodex isokinetic machine, blood gas analyzer, and RPE 6-20 Borg scale, respectively. Venous blood samples for pH and bicarbonate (HCO3-) were taken immediately after 25 repetitions of isokinetic knee flexion and extension. Measures taken during isokinetic knee extension during RF were significantly lower than those after RF in extension peak torque (t = -4.72, p = 0.002), flexion peak torque (t = -3.80, p = 0.007), extension total work (t = -3.05, p = 0.019), extension average power (t = -4.20, p = 0.004), flexion average power (t = -3.37, p = 0.012), blood HCO3- (t = -2.02, p = 0.041), and RPE (Z = -1.69, p = 0.048). No influence of RF was found on the blood pH (t = 0.752, p = 0.476). RF has adverse effects on muscle function and buffering capacity in athletes. It seems that a low-carbohydrate substrate during RF impairs muscle performance and reduces the buffering capacity of the blood, leading to fatigue in athletes.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFashi, M.; Ahmadizad, S.; Nobari, H.; Pérez-Gómez, J.; Oliveira, R.; Carlos-Vivas, J.; Ardigò, L.P. (2021). Effect of Acute Ramadan Fasting on Muscle Function and Buffering System of Male Athletes. Healthcare, 9(4) 397. https://doi.org/10.3390/ healthcare9040397pt_PT
dc.identifier.doi10.3390/healthcare9040397pt_PT
dc.identifier.issn2227-9032
dc.identifier.urihttp://hdl.handle.net/10400.15/3598
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2227-9032/9/4/397pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectisokineticpt_PT
dc.subjectbuffering capacitypt_PT
dc.subjectmuscle performancept_PT
dc.subjectRPE; HCO3pt_PT
dc.titleEffect of acute ramadan fasting on muscle function and buffering system of male athletespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceBasel, Switzerlandpt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage397pt_PT
oaire.citation.titleHealthcarept_PT
oaire.citation.volume9pt_PT
person.familyNameOliveira
person.givenNameRafael
person.identifier.ciencia-id9C16-7F53-1375
person.identifier.orcid0000-0001-6671-6229
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication048765fe-a23f-4a68-9e6e-f278321223ac
relation.isAuthorOfPublication.latestForDiscovery048765fe-a23f-4a68-9e6e-f278321223ac

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