Trail Sciences Clecy: Markers of Performances
Condition: Sports Injury
MeSH terms: Athletic Injuries
Study type: Interventional

Summary: 
      The Scientific Trail Protocol of Clécy - Suisse Normande (TCS) is exploratory study including
      several specific protocols, on a real event of 156 km on hilly terrain (6000 m of difference
      in level), allowing to evaluate the constraints and immediate (6000 m of difference in
      altitude), allowing to evaluate the constraints and the immediate physiological adaptations
      under race conditions.

      The evaluations will be performed by collecting biological and neurobiological variables
      before, during and after the race (inflammation, hydro-electrolytic, cardiac, renal and
      muscular balance), physiological parameters whose thermoregulatory processes (core
      temperature, skin temperature, hydration), neuromuscular fatigue, cognitive performances
      (motivation, attention, emotion) and sleep changes (before, during and after the race).
    

Detailed description: 
      Running has deep evolutionary roots in human history. The ability and the ability and
      propensity to run long distances would have appeared about 2 million years ago when humans
      were hunting to exhaustion in order to feed themselves with meaty foods. Today, these
      exceptional endurance abilities are the modern manifestation of a unique human trait that
      helps make humans what they are.

      For 20 years, the popularity of ultra-endurance disciplines (effort whose duration is greater
      than 6 hours) is exponential. Ultra-trail in particular has not escaped this popular
      worldwide craze. At the same time, the scientific community, particularly the medical
      community, is beginning to take an interest in this discipline. It is important to It is
      important to understand how a human organism is able to produce an effort of several tens of
      hours hours continuously. It is necessary to measure the short, medium and long term
      repercussions on the health of It is necessary to measure the short, medium and long term
      repercussions on the health of ultra-trail to ensure its development and its practice in
      complete safety, in a society that is becoming more and more sedentary.

      The lack of data found in the literature on these issues is essentially related to the the
      difficulty of setting up scientific protocols during events, associated with the preponderant
      place of the trail discipline, on which the project in Clécy,Normandy is originated.

      A consortium composed of several local research teams (Normandy Caen University Hospital),
      national and international research teams, propose to set up a common protocol to better
      explore and understand the time course of the psychophysiological mechanisms that contribute
      to performance during an ultra trail. For this purpose, measurements will be taken before,
      during and after the Ultra Trail (156 km) in 60 voluntary and experienced runners. This
      scientific study, so complete with a dedicated race, is the first of its type in ultra-trail.

      This experimental study will include 60 subjects, men and women, experienced in ultra trail
      running events and with no contraindications to the practice of this discipline.

      This experimental group will participate in a 156 km / 6000mD+ race (between 24 and 60 hours
      of running) and will take measurements at each lap (every 26 km). Hypothesis tested: The aim
      of this work is to evaluate the time course of parameters contributing to the
      performance/skills during a run of 156 km with a positive elevation difference of 6000 m.
    

Intervention name(s): Physiological recordings
Intervention type(s): Other
Intervention description(s): Physiological, cognitive, biological measurments
Intervention model: Single Group Assignment
Masking: None (Open Label)
Primary purpose: Basic Science
Keywords: Ultra trail; effort physiology; thermoregulation; tiredness; sleep deprivation; biology