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The effects of detraining on lower force and maximum aerobic power in pre-pubescent football athletes

2009Comunicação em conferência Acesso aberto
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dc.contributor.authorBrito, João Paulo
dc.contributor.authorJacinto, J.
dc.contributor.authorFernandes, Renato
dc.contributor.authorLouro, Hugo
dc.contributor.authorConceição, Ana
dc.date.accessioned2026-03-04T10:38:07Z
dc.date.available2026-03-04T10:38:07Z
dc.date.issued2009
dc.description.abstractOBJECTIVE Detraining results in the loss of cardiovascular and metabolic characteristics and consequently results in the reduction of VO2max and muscular strength (Coyle, 1994, Evangelista & Brum, 1999). For most researchers the VO2max is an indicator of greater fidelity in the characterization of aerobic power of an individual, as well as their level of fitness (1,2,3,4,5,6). Because detraining in young athletes has received little attention, is important to discuss this area. In adults, training-induced increases in muscle strength and VO2max appear to decline during detraining about and in the same rate as they increase during training. To date, only one study (Blimkie et al., 1989) looked at the effects of 8 weeks of detraining in prepubertal boys following 20 weeks of resistance training. The training-induced strength gains regressed towards the growth-adjusted control level during the detraining period, suggesting that alike with adults, training adaptations are reversible (Blimkie et al., 1989). The aim of this study was to know the effect of detraining in a period of 34 days on the Maximum Aerobic Power (MAP) and Lower Force (LF), in pre-pubescent children football players. METHODS Eight pre-pubescent male football players (age 12.75 ± 0.71years; weight 41.46 ± 6.66 kg; height 1,51 ± 0.06 cm; BMI 19,30 ± 3,59) were assessed before and after 5 weeks of a detraining period. A Modified Balke maximal protocol using ergo-spirometry procedures (Cosmed® K4b2) was selected to determine VO2max and the Ventilatory Anaerobic Threshold (VAT) as estimates for the aerobic capacity. To access the LF a Coutermovement Jump (CMJ) was made in the Ergojump®. Data comparisons were set to determine the relationships between the parameters resulting from testing. RESULTS The MAP (VO2max/kg) show a significant difference from the pre vs post detraining period (69,27 ± 5,41 ml.kg.min-1 vs 63,22 ± 4,95 ml.kg.min-1, p=0,002) however the LF doesn’t report significant changes. DISCUSSION & CONCLUSION The results suggest that 5 weeks of detraining decrease the MAP (VO2max/kg) of pre-pubescent football players although not significant changes were report on the LS parameter.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.15/6022
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectDetraining;pt_PT
dc.subjectprepubescent children;pt_PT
dc.subjectfootball;pt_PT
dc.subjectmaximum aerobic power,pt_PT
dc.subjectlower strengthpt_PT
dc.titleThe effects of detraining on lower force and maximum aerobic power in pre-pubescent football athletespt_PT
dc.typeconference paper
dspace.entity.typePublication
oaire.citation.titleJournal of Sports Science and Medicinept_PT
oaire.versionhttp://purl.org/coar/version/c_fa2ee174bc00049f
person.familyNameBrito
person.familyNameLouro
person.familyNameConceição
person.givenNameJoão Paulo
person.givenNameHugo
person.givenNameAna
person.identifier1741645
person.identifier1741759
person.identifier.ciencia-id8019-E11F-9609
person.identifier.ciencia-id6F1E-2607-3DA6
person.identifier.orcid0000-0003-4357-4269
person.identifier.orcid0000-0001-5635-2476
person.identifier.orcid0000-0002-8109-4875
person.identifier.scopus-author-id26425142800
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication2e040958-1fa8-47f8-bbca-29ebfe3d989b
relation.isAuthorOfPublicationf29a2faa-09b7-43c3-b023-0684d0a5d8d3
relation.isAuthorOfPublication3779cb02-16b2-46b7-a2ca-2206f8709781
relation.isAuthorOfPublication.latestForDiscoveryf29a2faa-09b7-43c3-b023-0684d0a5d8d3

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