NDLI: Influence of accurate and inaccurate ‘split-time’ feedback upon 10-mile time trial cycling performance

Content Provider	Springer Nature Link
Author	Wilson, Mathew G. Lane, Andy M. Beedie, Chris J. Farooq, Abdulaziz
Copyright Year	2011
Abstract	The objective of the study is to examine the impact of accurate and inaccurate ‘split-time’ feedback upon a 10-mile time trial (TT) performance and to quantify power output into a practically meaningful unit of variation. Seven well-trained cyclists completed four randomised bouts of a 10-mile TT on a SRM™ cycle ergometer. TTs were performed with (1) accurate performance feedback, (2) without performance feedback, (3) and (4) false negative and false positive ‘split-time’ feedback showing performance 5% slower or 5% faster than actual performance. There were no significant differences in completion time, average power output, heart rate or blood lactate between the four feedback conditions. There were significantly lower (p < 0.001) average $$ \dot{V}{\text{O}}_{2} $$ (ml min−1) and $$ \dot{V}{\text{E}} $$ (l min−1) scores in the false positive (3,485 ± 596; 119 ± 33) and accurate (3,471 ± 513; 117 ± 22) feedback conditions compared to the false negative (3,753 ± 410; 127 ± 27) and blind (3,772 ± 378; 124 ± 21) feedback conditions. Cyclists spent a greater amount of time in a ‘20 watt zone’ 10 W either side of average power in the negative feedback condition (fastest) than the accurate feedback (slowest) condition (39.3 vs. 32.2%, p < 0.05). There were no significant differences in the 10-mile TT performance time between accurate and inaccurate feedback conditions, despite significantly lower average $$ \dot{V}{\text{O}}_{2} $$ and $$ \dot{V}{\text{E}} $$ scores in the false positive and accurate feedback conditions. Additionally, cycling with a small variation in power output (10 W either side of average power) produced the fastest TT. Further psycho-physiological research should examine the mechanism(s) why lower $$ \dot{V}{\text{O}}_{2} $$ and $$ \dot{V}{\text{E}} $$ scores are observed when cycling in a false positive or accurate feedback condition compared to a false negative or blind feedback condition.
Starting Page	231
Ending Page	236
Page Count	6
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	112
Issue Number	1
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-05-01
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Accurate and inaccurate feedback Pacing strategies Cycling performance Occupational Medicine/Industrial Medicine Human Physiology Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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