Photoplethysmography Detection of Overreaching.

Details

Serval ID
serval:BIB_18A790FC838C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Photoplethysmography Detection of Overreaching.
Journal
Medicine and science in sports and exercise
Author(s)
Bourdillon N., Nilchian M., Millet G.P.
ISSN
1530-0315 (Electronic)
ISSN-L
0195-9131
Publication state
Published
Issued date
04/2019
Peer-reviewed
Oui
Volume
51
Number
4
Pages
701-707
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Detecting the onset of functional overreaching (FOR) or nonfunctional overreaching in endurance athletes is of prior importance to ensure reactive amendment of the scheduled training program. The objective of this study was to assess photoplethysmography (PPG) in overloaded athletes and test whether 1) it would be affected differently in functional overreached (FOR) or nonoverreached acutely fatigued (AF) athletes and 2) specific PPG characteristics would allow for timely distinction of FOR and AF.
Fifteen athletes performed 2-wk baseline training followed by 3-wk overload (+45%; OVL) and 2-wk recovery (-20%). Three-thousand-meter time-trial running was used to assess performance at the end of baseline, OVL, and recovery and distinguish FOR and AF. PPG was recorded overnight using a wearable sensor, every third night. Overnight means and variances of systolic, diastolic, and dicrotic amplitudes and times as well as systolic and diastolic slopes were used to discriminate FOR and AF athletes.
Performance was decreased in FOR and improved in AF at the end of OVL. Diastolic time was greater in AF than FOR, whereas systolic slope was smaller in AF than in FOR during OVL. The variances of systolic, diastolic, dicrotic amplitudes, systolic, diastolic slopes, and pulse areas were smaller in AF compared with FOR in the last week of OVL.
PPG is an efficient tool for the detection of overreaching because it distinguished FOR and AF athletes during OVL (prior performance decrement). This fast-responding method would therefore allow for adjusting the daily training content to prevent nonfunctional overreaching.
Pubmed
Web of science
Create date
13/11/2018 13:22
Last modification date
21/08/2019 6:34
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