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OpenTrials
Terminated

NCT Number: NCT07778017

Optimization of Exercise Capacity in Elite Judokas: Effects of a High-intensity Hypoxic Training Program With Eccentric Overload and Effect of Gender.

The main objective of this study is to evaluate the effects of an innovative training program on key factors affecting judo performance. This program includes high-intensity conventional cycling sessions in hypoxic conditions (simulated altitude), with or without eccentric cycling sequences. During this type of cycling, a motor drives the pedals in the opposite direction compared to conventional pedaling, and the participant is asked to try to slow down the movement of the bike's pedals (braking muscle actions).

To this end, a 6-week training program consisting of 2 sessions per week will be proposed. The program's impact on the body and judo performance capacity will be assessed using a battery of tests administered before the program (pre-tests) and again at the end of the 6-week training program (post-tests).

This information will contribute to the development of a new training strategy and, offer promising prospects for the development of new training methods. This study is part of the "Very High-Performance Sport" Priority Research Program from the French National Research Agency.

Why the study stopped: recrutment difficulties
Terminated

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Key information

Age range

16 year–23 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Hôpitaux Universitaires de Strasbourg

Strasbourg, 67000, France

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Member of the male or female France Judo Training Centers or of the Strasbourg Judo Development Center Registered with the French Judo Federation Male or female aged between 16 and 23 years inclusive Female participants using effective contraception at inclusion and agreeing to maintain it throughout the study participation Willing to participate in the study Non-smoker or having stopped smoking for at least 5 years Affiliated with a health insurance social security scheme Subject (and holders of parental authority, if the subject is a minor) able to understand the objectives and risks related to the research and to provide dated and signed informed consent

Exclusion criteria

Recent muscular, tendinous, or joint disorders affecting the lower limbs (<3 months) Neurological, respiratory, cardiovascular, or metabolic disorders Abnormality detected during the inclusion visit or during the maximal exercise test (pre-test no. 1) Ongoing drug treatment that cannot be discontinued 7 days before Day 0 (e.g., anti-inflammatory drugs) Pregnant (urine test at inclusion) or breastfeeding women Exposure to altitude (>2000 m for more than 7 days) within the past 3 months Inability to understand the informed information provided (e.g., emergency situation, comprehension difficulties, etc.) Subject under legal protection measures, guardianship, or curatorship

Treatment and study plan

Hypoxia training

Other

Training at a simulated altitude of 3000 m

Eccentric cycling

Other

Training at a simulated altitude of 3000 m and Eccentric cycling

Primary outcomes

  1. The difference in maximal voluntary isometric strength of the extensor muscles measured on Day 3 and Day 57. Knee extensors of the right leg (newton-meters) Knee flexors of the right leg (newton-meters)

    Time frame: Day 57.

Sponsors and collaborators

Lead sponsor

University Hospital, Strasbourg, France

Other

Collaborators

  • French National Research Agency

Registry information

Acronym: HYPOXPERF JUDO

Important dates

Study start
2024
Primary completion
2026
Study completion
2026
First posted
Aug 21, 2026
Registry last updated
Aug 21, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.