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Within-Subject Correlation Between Salivary IgA and Measures of Training Load in Elite Football Players

2019Journal article Restricted access
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dc.contributor.authorFigueiredo, Pedro
dc.contributor.authorNassis, George P.
dc.contributor.authorBrito, João
dc.date.accessioned2021-04-29T13:40:38Z
dc.date.available2021-04-29T13:40:38Z
dc.date.issued2019
dc.description.abstractPurpose: To quantify the association between salivary secretory immunoglobulin A (sIgA) and training load in elite football players. Methods: Data were obtained on 4 consecutive days during the preparation camp for the Rio 2016 Olympic Games. Saliva samples of 18 elite male football players were collected prior to breakfast. The session rating of perceived exertion (s-RPE) and external training-load metrics from global positioning systems (GPS) were recorded. Within-subject correlation coefficients between training load and sIgA concentration, and magnitude of relationships, were calculated. Results: sIgA presented moderate to large negative correlations with s-RPE (r = -.39), total distance covered (r = -.55), accelerations (r = -.52), and decelerations (r = -.48). Trivial to small associations were detected between sIgA and distance covered per minute (r = .01), high-speed distance (r = -.23), and number of sprints (r = -.18). sIgA displayed a likely moderate decrease from day 1 to day 2 (d = -0.7) but increased on day 3 (d = 0.6). The training-load variables had moderate to very large rises from day 1 to day 2 (d = 0.7 to 3.2) but lowered from day 2 to day 3 (d = -5.0 to -0.4), except for distance per minute (d = 0.8) and sprints (unclear). On day 3, all training-load variables had small to large increments compared with day 1 (d = 0.4 to 1.5), except for accelerations (d = -0.8) and decelerations (unclear). Conclusions: In elite football, sIgA might be more responsive to training volume than to intensity. External load such as GPS-derived variables presented stronger association with sIgA than with s-RPE. sIgA can be used as an additional objective tool in monitoring football players.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1123/ijspp.2018-0455pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.24/1811
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectGeographic Information Systemspt_PT
dc.subjectHumanspt_PT
dc.subjectImmunoglobulin A, Secretorypt_PT
dc.subjectMalept_PT
dc.subjectSalivapt_PT
dc.subjectYoung Adultpt_PT
dc.subjectSoccerpt_PT
dc.subjectWorkloadpt_PT
dc.titleWithin-Subject Correlation Between Salivary IgA and Measures of Training Load in Elite Football Playerspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage849pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage847pt_PT
oaire.citation.titleInternational Journal of Sports Physiology and Performancept_PT
oaire.citation.volume14pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT

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