Study of the Psychological, Physiological and Biomechanical Responses to Trail Running in a Hot, Humid Environment

NCT07831109 | Completed

• 1 other identifier: 2024/CHU/40
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

The determinants of trail performance have been extensively studied, and the results have revealed the significant influence of physiological, psychological and biomechanical parameters. Although there are numerous publications on the physiological responses of thermoregulation to exercise, the impact of heat and humidity on emotional regulation has never been studied in trail running. To the litterature, no study has looked at the evolution of biomechanical parameters during alternating ascents and descents in trail running. No study has compared patterns of motivation between men and women during exercise, even though the hypothesis of a higher level of 'mental fitness' is put forward to explain the very high level of performance of women in long-distance events.

Conditions

Running; Motivation for Physical Activity; Sport Physiology

Keywords

Trail running; Psychological responses; Physiological responses; Biomechanical responses; Hot and humid environment

Outcome Measures

Primary Outcomes (12)

• Effort measurements

  Level of effort will be measured using a scale (Borg, 1990) from 0 to 10 (0 meaning no effort, and 10 maximal effort).

  11 measurements, before the start and after each ascent and each descent, between 30 minutes and 1hour and 30 minutes

• Pleasure measurements

  Level of pleasure will be measured using a scale (Baron et al, 2011), from 0 to 10 (0 meaning no pleasure, and 10 maximal pleasure).

  11 measurements, before the start and after each ascent and each descent, between 30 minutes and 1hour and 30 minutes

• Sensation measurements

  Levels of sensation will be measured using a scale (Hardy \& Rejeski, 1989) from -5 to +5 (-5 feeling very bad; to +5 feeling very good)

  11 measurements, before the start and after each ascent and each descent, between 30 minutes and 1hour and 30 minutes

• Fatigue measurements

  Levels of fatigue will be measured using a scale (Brownstein et al, 2021) from 0 to 10 (0 not tired at all; to 10 total exhaustion)

  11 measurements, before the start and after each ascent and each descent, between 30 minutes and 1hour and 30minutes

• Motivation measurements

  Levels of motivation (5 questions) will be measured using a scale MMSE (Baron et al, 2022) from 0 to 7 (0 not motivation to 7 very motivated)

  11 measurements, before the start and after each ascent and each descent, between 30 minutes and 1hour and 30 minutes

• Body temperature measurements

  \- Body temperature measurement in Celsius degree (Caméra FLIR E8xt, Wilsonville, Oregon, USA)

  11 measurements, before the start and after each ascent and each descent; between 30 minutes and 1hour and 30minutes

• Changes in body weight

  Changes in body weight measured in kilograms

  11 measurements, before the start and after each ascent and each descent; between 30 minutes and 1hour and 30 minutes

• Osmolarity measurements

  Salivary osmolarity will be measured using an MX3 Hydration Testing System® in nOsm

  11 measurements, before the start and after each ascent and each descent; between 30 minutes and 1hour and 30 minutes

• Drop jumps measurements

  Seven drop jumps

  11 measurements, before the start and after each ascent and each descent; between 30 minutes and 1hour and 30minutes

• Cardiac frequency measurements

  Cardiac frequency measured by heart rate monitor Performance

  All the way from the start till the end of the race, measurement made automatically every 30 seconds

• Central body temperature measurements

  Central body temperature measured by ingested pills e-Celsius® Performance in Celsius degree

  All the way from the start till the end of the race, measurement made automatically every 30 seconds

• volume of water consumed

  The volume of water consumed during the previous segment will be recorded in liters

  11 measurements, before the start and after each ascent and each descent; between 30 minutes and 1hour and 30minutes

Study Arms (1)

Trail Running

EXPERIMENTAL

Trail running of 28km with 2580m vertical drop

Other: Trail running of 28km and 2580m vertical drop

Interventions

Trail running of 28km and 2580m vertical drop OTHER

Running 5 round trip, up and down a hill of 2.8km each and 516m vertical drop

Trail Running

Eligibility Criteria

• Age: 18 Months+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Adult
• Participant in trail competitions for at least 2 years.
• Affiliated or beneficiary of a social security scheme
• Have given their free, informed and written consent
• Holding a License from the French Federation of Athletism (FFA) or showing a medical certificate of no contraindication to trail running

You may not qualify if:

• Do not understand French
• Protected (guardianship, curatorship or under family guardianship) or placed under court protection
• Whose psychological health may, according to the investigator, affect the participant's compliance
• Have difficulty swallowing paracetamol-type capsules and will therefore have difficulty swallowing e-Celsius® Performance capsules.

Sponsors & Collaborators

• Centre Hospitalier Universitaire de la Réunion: lead
• Universite de La Reunion: collaborator
• University of Franche-Comté: collaborator

Study Sites (1)

CHU Réunion

Saint-Denis, France, 97400, Reunion

Location

Study Officials

• Nicolas Bouscaren, MD

  CHU La Réunion

  PRINCIPAL INVESTIGATOR

• Bertrand Baron, PhD

  Universite de La Reunion

  STUDY DIRECTOR

• Alain Groslambert, PhD

  Université de Bourgogne Franche-Comté

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: OTHER
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 10, 2024
• First Posted: September 21, 2026
• Study Start: November 9, 2024
• Primary Completion: November 9, 2024
• Study Completion: November 15, 2024
• Last Updated: September 21, 2026

Record last verified: 2026-09

Data Sharing

• IPD Sharing: Will not share

Locations

RE (1)