Muscle Fatigue
Conditions
Brief summary
The practice of mountain running or trail is in full development in France and elsewhere in the world. This sporting practice associates specific physiological constraints related in particular to the duration of the efforts made (several hours) and to the ground (important elevation, technical ground, average altitude). Some studies have allowed the last 10 years to initiate the exploration of the physiological consequences of this type of practice, especially from a muscular point of view. However, some important questions remain to be clarified such as the impact of these sports events on fatigue and muscle recovery, cardiovascular, energy and water balance disturbances caused, induced sleep changes and the kinetics of recovery of the various parameters. . These elements remain in particular to be studied in very different racing contexts as currently developed by the organizers, namely race in one stage from long to very long distances (40 to 160 km) and race in stages (4 days, 4 x 40 km) as encountered in the Grenoble UT4M race (Ultra Tour des 4 Massifs).
Interventions
OTHERPre and post running evaluations
Each visit will include a series of neuromuscular, cardiovascular, blood glucose and body composition evaluations will be performed. The subjects will provide some information about their muscular pain and their food and water intake. Finally, for the study of sleep that only concerns participants in the 4x40 km race, a home sleep registration banner will be given to each participant of the event step by step at the arrival of each stage in order to study sleep the next night as well as 2 nights after the arrival of the last stage.
Sponsors
University Grenoble Alps
University Hospital, Grenoble
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes
Inclusion criteria
* Man or woman * 18-55 years * Absence of chronic cardiovascular, respiratory, metabolic or neuromuscular disease * \> 3 years of trail running (at least 1 race\> 40 km / year completed and a race\> 100 km completed (trail group 160 km) * Medical certificate of no contraindication to the practice of the trail * Subjects available in Grenoble before and within 15 days after the race * Subjects affiliated to a social security scheme * Subjects able to sign informed consent.
Exclusion criteria
* Cardiorespiratory, metabolic and neurological diseases * Non-Echogenic Subjects * Subjects with chronic sleep disorders * Psychiatric pathologies or ATCD of behavioral disorders * Persons refusing to sign the information sheet and the participation agreement, * persons under guardianship or not subject to a social security scheme, * Pregnant woman, parturient, breastfeeding mother * Person deprived of liberty by judicial or administrative decision, * Person subject to a legal protection measure, who can not be included in clinical trials.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Quantification of the level of ankle extensors fatigue induced by trail | one month and 12 days | Pre-post-force decrease in muscle contractility of ankle extensors assessed by neurostimulation |
| Quantification of the level of knee extensors fatigue induced by trail | one month and 12 days | Pre-post-force decrease in muscle contractility of knee extensors assessed by neurostimulation |
Countries
France
Outcome results
None listed