Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05603689
Other study ID # CRR
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 1, 2020
Est. completion date September 23, 2022

Study information

Verified date October 2022
Source Clinique Romande de Readaptation
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

A ketogenic diet (KD) reduces daily carbohydrates (CHOs) ingestion by replacing most calories with fat. KD is of increasing interest among athletes because it may increase their maximal oxygen uptake (VO2max), the principal performance limitation at high altitudes. The investigators examined the tolerance of a 4-week isocaloric KD (ICKD) under simulated hypoxia and the possibility of evaluating ICKD performance benefits with a maximal graded exercise bike test under hypoxia and collected data on the effect of the diet on performance markers and arterial blood gases.


Description:

In a randomised single-blind cross-over model, 6 recreational mountaineers (age 24 to 44 years) will complete a 4-week ICKD followed or preceded by a 4-week habitual mixed western diet (HD). Performance parameters (VO2max, lactate threshold [LT], peak power [Ppeak]) and arterial blood gases (PaO2, PaCO2, pH, HCO3-) will be measured at baseline under two conditions (normoxia and hypoxia) as well as after a 4-week HD and 4-week ICKD under the hypoxic condition.


Recruitment information / eligibility

Status Completed
Enrollment 8
Est. completion date September 23, 2022
Est. primary completion date September 1, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 20 Years to 45 Years
Eligibility Inclusion Criteria: - Recreational mountaineers - Familiarity with altitude (>2500 m above sea level) and males/females 20 to 45 years old. Exclusion Criteria: - high training load (such as professional athletes) or new planned training - dietary restrictions.

Study Design


Intervention

Dietary Supplement:
Isocaloric ketogenic diet
The ICKD definition was based on the works of Sansone (2018) and Trimboli (2020). We defined ICKD as a daily CHOs ingestion < 30 to 50 g.d-1, without any limitation in fat consumption. Participants self-selected their own diet based on a list of advised and forbidden foods developed to fit the definition of ICKD. There were no instructions to limit calories.

Locations

Country Name City State
Switzerland CRR Sion

Sponsors (1)

Lead Sponsor Collaborator
Clinique Romande de Readaptation

Country where clinical trial is conducted

Switzerland, 

Outcome

Type Measure Description Time frame Safety issue
Primary Performance test under hypoxic conditions VO2max cycling test on ergometer after 4 weeks of diet
See also
  Status Clinical Trial Phase
Active, not recruiting NCT05661799 - Persistence of Physical Activity in People With Type 2 Diabetes Over Time. N/A
Active, not recruiting NCT03903874 - Testing Scalable, IVR-supported Cancer Prevention Interventions in the Rural Alabama Black Belt N/A
Recruiting NCT03662438 - HOPE (Home-based Oxygen [Portable] and Exercise) for Patients on Long Term Oxygen Therapy (LTOT) N/A
Withdrawn NCT04540523 - Home-Based Exergaming Intervention N/A
Recruiting NCT03250000 - Changes in Microcirculation and Functional Status During Exacerbation of COPD N/A
Recruiting NCT05563805 - Exploring Virtual Reality Adventure Training Exergaming N/A
Completed NCT03430648 - Is Tau Protein Linked to Mobility Function?
Completed NCT05019482 - Intervention Program Among University Student to Promote Physical Activity and Reduce the Sedentary Time N/A
Completed NCT03253406 - Health Wearables and College Student Health N/A
Not yet recruiting NCT05985460 - A Very Brief Intervention to Increase the Intention to Practice Physical Activity N/A
Completed NCT03380143 - Whole-of-Community Youth Population Physical Activity N/A
Completed NCT03700736 - The Healthy Moms Study: Comparison of a Post-Partum Weight Loss Intervention Delivered Via Facebook or In-Person Groups N/A
Completed NCT03170921 - Psychophysiological Characterization of Different Capoeira Performances in Experienced Individuals N/A
Completed NCT04973813 - Active Choice Intervention About Physical Activity for Physically Inactive Adults N/A
Completed NCT03982095 - Survey on Lifestyle, Perceived Barriers and Development of Change in Patients With Prostate Cancer
Completed NCT03271112 - Frailty Prevention in Elders From Reunion Island N/A
Completed NCT05670223 - Healthy Activities Improve Lives N/A
Completed NCT04894929 - Comprehensive Geriatric Assessment in the Monitoring of Functional Improvement N/A
Recruiting NCT04578067 - Empowering Immigrant Women for Active and Healthy Lifestyle N/A
Completed NCT03297567 - Physical Therapy Guidelines For Hospitalized Elderly N/A