NCT05727774

Brief Summary

The goal of this clinical trial is to compare the efficiency of water biking training in hot (35°C) versus neutral (25°C) temperature water to elicite heat acclimation in healthy recreative athletes.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at P25-P50 for not_applicable healthy

Timeline
Completed

Started Feb 2023

Shorter than P25 for not_applicable healthy

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 12, 2023

Completed
27 days until next milestone

Study Start

First participant enrolled

February 8, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 14, 2023

Completed
24 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 10, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 10, 2023

Completed
Last Updated

September 13, 2023

Status Verified

February 1, 2023

Enrollment Period

1 month

First QC Date

January 12, 2023

Last Update Submit

September 11, 2023

Conditions

HealthyHeat Exposure

Keywords

Water bikingAcclimatization

Outcome Measures

Primary Outcomes (1)

  • Change of the distance traveled (meter) on a Time Trial between pre and post training tests in hot and humid atmosphere (environmental room)

    The participant has to perform the longer distance possible in 30 min on a stationary bike in hot and humid atmosphere (environmental room). The change of distance (measured in meter) will be assessed before and after the 2 weeks training program.

    The 1st Time Trial will be performed the week preceding the program training. The 2nd Time Trial will be performed the week following the program training

Secondary Outcomes (13)

  • Change in VO2 Max (ml/kg/min) between pre and post training tests in normal environment

    The 1st maximal cardiorespiratory test will be performed the week preceding the program training. The 2nd maximal cardiorespiratory test will be performed the week following the program training

  • Change in Maximal Aerobic Power (Watts) between pre and post training tests in normal environment

    The 1st maximal cardiorespiratory test will be performed the week preceding the program training. The 2nd maximal cardiorespiratory test will be performed the week following the program training

  • Change of "global longitudinal strain of left ventricule" (%) measured during an echocardiography between pre and post training tests in normal environment

    The 1st echocardiography will be performed the week preceding the program training. The 2nd echocardiography will be performed the week following the program training

  • Change on central temperature (°C) between pre and post training test in hot and humid atmosphere (environmental room)

    The 1st Time Trial will be performed the week preceding the program training. The 2nd Time Trial will be performed the week following the program training

  • Change on cutaneours temperature (°C) between pre and post training test in hot and humid atmosphere (environmental room)

    The 1st Time Trial will be performed the week preceding the program training. The 2nd Time Trial will be performed the week following the program training

  • +8 more secondary outcomes

Study Arms (2)

Hot water condition

EXPERIMENTAL

Participants do the water biking training for two weeks, 1 hour a day, in hot water temperature (35°C)

Other: Water Biking in hot water condition

Neutral water condition

SHAM COMPARATOR

Participants do the water biking training for two weeks, 1 hour a day, in neutral water temperature (25°C)

Other: Water Biking in neutral water condition

Interventions

Water Biking in hot water conditionOTHER

Training protocol includes 10 water biking sessions in hot water temperature (35°C) for this group

Hot water condition
Water Biking in neutral water conditionOTHER

Training protocol includes 10 water biking sessions in neutral water temperature (25°C) for this group

Neutral water condition

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy people
  • Sports practicing

You may not qualify if:

  • Acclimatation already done (recent training in hot and/or humid) less than 2 months
  • Heart disease recent or non controlled
  • Heat intolerance
  • Water phobia or inable to swim

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Département de Médecine Physique et Réadaptation

Montpellier, 34295, France

Location

Related Publications (7)

  • Periard JD, Travers GJS, Racinais S, Sawka MN. Cardiovascular adaptations supporting human exercise-heat acclimation. Auton Neurosci. 2016 Apr;196:52-62. doi: 10.1016/j.autneu.2016.02.002. Epub 2016 Feb 12.

    PMID: 26905458BACKGROUND

  • Kelly M, Gastin PB, Dwyer DB, Sostaric S, Snow RJ. Short Duration Heat Acclimation in Australian Football Players. J Sports Sci Med. 2016 Feb 23;15(1):118-25. eCollection 2016 Mar.

    PMID: 26957934BACKGROUND

  • Zurawlew MJ, Walsh NP, Fortes MB, Potter C. Post-exercise hot water immersion induces heat acclimation and improves endurance exercise performance in the heat. Scand J Med Sci Sports. 2016 Jul;26(7):745-54. doi: 10.1111/sms.12638. Epub 2015 Dec 9.

    PMID: 26661992BACKGROUND

  • Zurawlew MJ, Mee JA, Walsh NP. Post-exercise Hot Water Immersion Elicits Heat Acclimation Adaptations in Endurance Trained and Recreationally Active Individuals. Front Physiol. 2018 Dec 18;9:1824. doi: 10.3389/fphys.2018.01824. eCollection 2018.

    PMID: 30618833BACKGROUND

  • Racinais S, Alonso JM, Coutts AJ, Flouris AD, Girard O, Gonzalez-Alonso J, Hausswirth C, Jay O, Lee JK, Mitchell N, Nassis GP, Nybo L, Pluim BM, Roelands B, Sawka MN, Wingo J, Periard JD. Consensus recommendations on training and competing in the heat. Br J Sports Med. 2015 Sep;49(18):1164-73. doi: 10.1136/bjsports-2015-094915. Epub 2015 Jun 11.

    PMID: 26069301BACKGROUND

  • Zurawlew MJ, Mee JA, Walsh NP. Post-exercise Hot Water Immersion Elicits Heat Acclimation Adaptations That Are Retained for at Least Two Weeks. Front Physiol. 2019 Aug 28;10:1080. doi: 10.3389/fphys.2019.01080. eCollection 2019.

    PMID: 31555140BACKGROUND

  • Helmer G, Laurent M, Rubio J, Duflos C, Hayot M, Myzia J, Hedon C, Gouzi F, Candau R, Racinais S, Julia M. Training in hot water immersion improved exercise performance in hot and humid conditions in recreational athletes - a randomized controlled trial. Eur J Appl Physiol. 2025 Jul 15. doi: 10.1007/s00421-025-05876-1. Online ahead of print.

    PMID: 40663144DERIVED

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 12, 2023

First Posted

February 14, 2023

Study Start

February 8, 2023

Primary Completion

March 10, 2023

Study Completion

March 10, 2023

Last Updated

September 13, 2023

Record last verified: 2023-02

Locations

FR(1)