Continuous Analysis of Marathon Running Using Inertial Sensors: Hitting Two Walls?

Details

Serval ID
serval:BIB_878E9E83661B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Continuous Analysis of Marathon Running Using Inertial Sensors: Hitting Two Walls?
Journal
International journal of sports medicine
Author(s)
Meyer F., Falbriard M., Mariani B., Aminian K., Millet G.P.
ISSN
1439-3964 (Electronic)
ISSN-L
0172-4622
Publication state
Published
Issued date
12/2021
Peer-reviewed
Oui
Volume
42
Number
13
Pages
1182-1190
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Marathon running involves complex mechanisms that cannot be measured with objective metrics or laboratory equipment. The emergence of wearable sensors introduced new opportunities, allowing the continuous recording of relevant parameters. The present study aimed to assess the evolution of stride-by-stride spatio-temporal parameters, stiffness, and foot strike angle during a marathon and determine possible abrupt changes in running patterns. Twelve recreational runners were equipped with a Global Navigation Satellite System watch, and two inertial measurement units clamped on each foot during a marathon race. Data were split into eight 5-km sections and only level parts were analyzed. We observed gradual increases in contact time and duty factor as well as decreases in flight time, swing time, stride length, speed, maximal vertical force and stiffness during the race. Surprisingly, the average foot strike angle decreased during the race, but each participant maintained a rearfoot strike until the end. Two abrupt changes were also detected around km 25 and km 35. These two breaks are possibly due to the alteration of the stretch-shortening cycle combined with physiological limits. This study highlights new measurable phenomena that can only be analyzed through continuous monitoring of runners over a long period of time.
Keywords
Foot, Gait, Humans, Marathon Running/physiology, Monitoring, Ambulatory/instrumentation, Monitoring, Ambulatory/methods, Wearable Electronic Devices
Pubmed
Web of science
Create date
19/05/2021 15:19
Last modification date
24/02/2022 7:34
Usage data