Tools
Tools
Edwards, B, Harris, C, Jackman, Z, Linares-Alcolea, R, Matta, R, Giacomoni, M, Mahon, E, Pullinger, SA, Burniston, JG and Doran, DA (2024) Is there a diurnal variation in 4-km cycling time-trial performance, conducted in an environmental chamber where a standardised approach has been employed? Biological Rhythm Research. ISSN 0929-1016
|
Text
Is there a diurnal variation in 4-km cycling time-trial performance conducted in an environmental chamber where a standardised a.pdf - Published Version Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
We investigated the hypothesis that daily-variation exists for a 4-km time-trial, where a standardised approach has been employed. Twenty-six male students completed a 30-s Wingate test, a V02 peak test: and then three 4-km familiarisations at 12:00 h. Two further time-trials counterbalanced for start at 07:30 or 17:30h were undertaken. There was 72h between each session. Heart rate, rectal and skin temperature values, rating-of-perceived-exertion, effort, pacing perception and split times were measured every 1-km during the time-trial. Blood lactate, urine, osmolarity, rectal and skin temperature were taken at rest and immediately after each time-trial. Evening finishing times , resting rectal temperatures, pre-post time-trial blood lactate were faster, higher with a greater rise (~10 s, 0.48oc, 0.7 mmo1.L0) than morning values (p<0.005) with no other interactions. In summary, where a standardised approach has been employed 4-km performance was 2.6% faster in the evening than the morning (ES=0.34, power =0.8).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 0601 Biochemistry and Cell Biology; 1116 Medical Physiology; Physiology |
| Subjects: | Q Science > QH Natural history > QH301 Biology Q Science > QP Physiology R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport & Exercise Sciences |
| Publisher: | Taylor and Francis Group |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 15 Feb 2024 16:13 |
| Last Modified: | 01 Mar 2024 15:33 |
| DOI or ID number: | 10.1080/09291016.2024.2316401 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/22634 |
 |
View Item |