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The Extraordinary Endurance of the Human Species

The Extraordinary Endurance of the Human Species

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07626593
Acronym
0 TO 100
Enrollment
40
Registered
2026-06-04
Start date
2026-02-03
Completion date
2027-11-01
Last updated
2026-06-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Keywords

Ultra-endurance, Sedentary, Healthy volunteers

Brief summary

We hypothesize, based on field and scientific data, that setting a very ambitious goal such as completing a mountain ultra-marathon could motivate sedentary and inactive individuals not only to begin training but also to follow a progressive yet extremely ambitious program that has not yet been studied comprehensively. Indeed, the effects of intense and prolonged endurance training (18 months) on the health and performance of completely sedentary individuals have never been investigated exhaustively.

Interventions

participants will follow individualized coaching: starting at 5-6 hours per week and progressing to 7-10 hours (rarely 15 hours) per week before mountain ultra marathon

Sponsors

Centre Hospitalier Universitaire de Saint Etienne
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
25 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Affiliation to social security. * Informed consent signed. * Male or female, aged 25-50. * Sedentary (\>6h/day sitting) and inactive (no regular training), assessed by GPAQ questionnaire.

Exclusion criteria

* Chronic joint or cardiac diseases. * Neurological disorders. * Legal protection status. * Moderate to severe depression (BDI-13 \> 7) or use of antidepressants/anxiolytics. * Use of banned substances. * Excessive alcohol or caffeine consumption. * Pregnancy. * Inability to understand or consent.

Design outcomes

Primary

MeasureTime frameDescription
Transition from sedentary lifestyle to regular activity and completion of a 100 km ultra-trailup to 18 monthsPercentage of participants who (i) become sufficiently active to be ready to start the Courmayeur-Champex-Chamonix (CCC) 100 km ultra-trail of the Ultra Trail du Mont-Blanc, and (ii) complete the 100 km CCC race.

Secondary

MeasureTime frameDescription
Safety and tolerance of progressive endurance trainingWeekly reporting during the 18-month intervention periodRate of injuries or adverse events reported weekly, and dropout rate over the 18-month training period.
Feasibility and adherence to the endurance training programup to 18 monthsProportion of scheduled training sessions completed by participants and the percentage of participants finishing the 100 km CCC ultra-trail among those who started the race.

Countries

France

Contacts

CONTACTLeonard FEASSON, MD Phd
leonard.feasson@chu-st-etienne.fr(0)4 77 82 83 00
CONTACTCéline LECLERCQ-TRAUTVETTER, CDP
Celine.LECLERCQ-TRAUTVETTER@chu-st-etienne.fr04 77 82 94 27

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 5, 2026