Deception of ambient and body core temperature improves self paced cycling in hot, humid conditions

2.50
Hdl Handle:
http://hdl.handle.net/10547/225587
Title:
Deception of ambient and body core temperature improves self paced cycling in hot, humid conditions
Authors:
Castle, Paul C.; Maxwell, Neil S.; Allchorn, Alan; Mauger, Alexis R.; White, Danny K.
Abstract:
We used incorrect visual feedback of ambient and core temperature in the heat to test the hypothesis that deception would alleviate the decrement in cycling performance compared to a no deception trial. Seven males completed three 30 min cycling time trials in a randomised order on a Kingcycle ergometer. One time trial was in temperate, control conditions (CON: 21.8 ± 0.6°C; 43.3 ± 4.3%rh), the others in hot, humid conditions (HOT: 31.4 ± 0.3°C; 63.9 ± 4.5%rh). In one of the hot, humid conditions (31.6 ± 0.5°C; 65.4 ± 4.3%rh), participants were deceived (DEC) into thinking the ambient conditions were 26.0°C; 60.0%rh and their core temperature was 0.3°C lower than it really was. Compared to CON (16.63 ± 2.43 km) distance covered was lower in HOT (15.88 ± 2.75 km; P < 0.05), but DEC ameliorated this (16.74 ± 2.87 km; P < 0.05). Mean power output was greater in DEC (184.4 ± 60.4 W) than HOT (168.1 ± 54.1 W; P < 0.05) and no difference was observed between CON and DEC. Rectal temperature and iEMG of the vastus lateralis were not different, but RPE in the third minute was lower in DEC than HOT (P < 0.05). Deception improved performance in the heat by creating a lower RPE, evidence of a subtle mismatch between the subconscious expectation and conscious perception of the task demands.
Affiliation:
Department of Sport and Exercise Science, University of Bedfordshire
Citation:
Castle, P.C., Maxwell, N., Allchorn, A., Mauger, A.R., and White, D.K. (2012) 'Deception of ambient and body core temperature improves self paced cycling in hot, humid conditions' European journal of applied physiology, 112(1) pp.377-85
Journal:
European journal of applied physiology
Issue Date:
Jan-2012
URI:
http://hdl.handle.net/10547/225587
DOI:
10.1007/s00421-011-1988-y
PubMed ID:
21573777
Additional Links:
http://link.springer.com/article/10.1007%2Fs00421-011-1988-y
Language:
en
ISSN:
1439-6327
Appears in Collections:
Applied Sport and Exercise Physiology

Full metadata record

DC FieldValue Language
dc.contributor.authorCastle, Paul C.en_GB
dc.contributor.authorMaxwell, Neil S.en_GB
dc.contributor.authorAllchorn, Alanen_GB
dc.contributor.authorMauger, Alexis R.en_GB
dc.contributor.authorWhite, Danny K.en_GB
dc.date.accessioned2012-05-23T13:37:19Zen
dc.date.available2012-05-23T13:37:19Zen
dc.date.issued2012-01en
dc.identifier.citationCastle, P.C., Maxwell, N., Allchorn, A., Mauger, A.R., and White, D.K. (2012) 'Deception of ambient and body core temperature improves self paced cycling in hot, humid conditions' European journal of applied physiology, 112(1) pp.377-85en_GB
dc.identifier.issn1439-6327en
dc.identifier.pmid21573777en
dc.identifier.doi10.1007/s00421-011-1988-yen
dc.identifier.urihttp://hdl.handle.net/10547/225587en
dc.description.abstractWe used incorrect visual feedback of ambient and core temperature in the heat to test the hypothesis that deception would alleviate the decrement in cycling performance compared to a no deception trial. Seven males completed three 30 min cycling time trials in a randomised order on a Kingcycle ergometer. One time trial was in temperate, control conditions (CON: 21.8 ± 0.6°C; 43.3 ± 4.3%rh), the others in hot, humid conditions (HOT: 31.4 ± 0.3°C; 63.9 ± 4.5%rh). In one of the hot, humid conditions (31.6 ± 0.5°C; 65.4 ± 4.3%rh), participants were deceived (DEC) into thinking the ambient conditions were 26.0°C; 60.0%rh and their core temperature was 0.3°C lower than it really was. Compared to CON (16.63 ± 2.43 km) distance covered was lower in HOT (15.88 ± 2.75 km; P < 0.05), but DEC ameliorated this (16.74 ± 2.87 km; P < 0.05). Mean power output was greater in DEC (184.4 ± 60.4 W) than HOT (168.1 ± 54.1 W; P < 0.05) and no difference was observed between CON and DEC. Rectal temperature and iEMG of the vastus lateralis were not different, but RPE in the third minute was lower in DEC than HOT (P < 0.05). Deception improved performance in the heat by creating a lower RPE, evidence of a subtle mismatch between the subconscious expectation and conscious perception of the task demands.en_GB
dc.language.isoenen
dc.relation.urlhttp://link.springer.com/article/10.1007%2Fs00421-011-1988-yen
dc.rightsArchived with thanks to European journal of applied physiologyen_GB
dc.subject.meshAdulten
dc.subject.meshBicyclingen
dc.subject.meshBody Temperatureen
dc.subject.meshBody Temperature Regulationen
dc.subject.meshHot Temperatureen
dc.subject.meshHumansen
dc.subject.meshHumidityen
dc.subject.meshMaleen
dc.subject.meshPerceptual Maskingen
dc.subject.meshPhysical Exertionen
dc.subject.meshPsychomotor Performanceen
dc.subject.meshThermosensingen
dc.titleDeception of ambient and body core temperature improves self paced cycling in hot, humid conditionsen
dc.contributor.departmentDepartment of Sport and Exercise Science, University of Bedfordshireen_GB
dc.identifier.journalEuropean journal of applied physiologyen_GB
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