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dc.contributor.authorRoberts, Llion A
dc.contributor.authorCaia, Johnpaul
dc.contributor.authorJames, Lachlan P
dc.contributor.authorScott, Tannath J
dc.contributor.authorKelly, Vincent G
dc.date.accessioned2019-06-10T01:34:55Z
dc.date.available2019-06-10T01:34:55Z
dc.date.issued2019
dc.identifier.issn1555-0265
dc.identifier.doi10.1123/ijspp.2018-0682
dc.identifier.urihttp://hdl.handle.net/10072/384501
dc.description.abstractPURPOSE: External counterpulsation (ECP) has previously been used to treat cardiac patients via compression of the lower extremities during diastole to increase venous return and coronary perfusion. However, the effects of ECP on exercise performance and markers of recovery in elite athletes is largely unknown. METHODS: On two separate occasions, 48 h apart, seven elite National Rugby League players performed an identical 60 min field-based conditioning session followed by a 30 min period of either regular ECP treatment or placebo. Power measures during repeated cycle bouts and countermovement jump height and contraction time derivatives were measured at rest, and 5 h post-exercise. Saliva samples and venous blood samples were taken at rest, post-exercise, and 5 h post-exercise to assess stress, inflammation and muscle damage. RESULTS: Post ECP treatment, cycling peak power output (p=0.028; 11%) and accumulated peak power (p=0.027; 14%) increased compared to the placebo condition. Post-exercise plasma Interleukin 1 receptor (IL-1ra) only increased after ECP (p=0.024; 84%) and concentrations of IL-1ra tended to be higher (p=0.093; 76%) 5 h post-exercise. Furthermore, testosterone to cortisol ratio was increased above baseline and placebo 5 hours post-exercise (p=0.017 to 0.029; 24 to 77%). Post-exercise salivary alpha amylase to Immunoglobulin A ratio decreased after treatment (p=0.013; 50%), compared with the placebo control. CONCLUSIONS: Exercise performance and hormonal indicators of stress were improved, and inflammation markers were reduced following acute ECP.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.relation.ispartoflocationUnited States
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto23
dc.relation.ispartofjournalInt J Sports Physiol Perform
dc.subject.fieldofresearchSports science and exercise
dc.subject.fieldofresearchMedical physiology
dc.subject.fieldofresearchPsychology
dc.subject.fieldofresearchcode4207
dc.subject.fieldofresearchcode3208
dc.subject.fieldofresearchcode52
dc.titleEffects of external Counterpulsation on Post-Exercise Recovery in Elite League Players.
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorRoberts, Llion A.


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