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Influence of two different nutritional concepts on metabolic regulation and training adaptation in male endurance athletes

Influence of two different nutritional concepts on metabolic regulation and training adaptation in male endurance athletes - Glutenfree Paleo Study

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
DRKS
Registry ID
DRKS00025708
Enrollment
30
Registered
2021-07-02
Start date
2019-08-04
Completion date
Unknown
Last updated
2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metabolic adaptations (fat and carbohydrate metabolism) and performance adaptations in healthy male endurance athletes

Interventions

Group 1: Substudy 1: 6 weeks of a gluten-free diet in combination with a HIIT 3 times a week Group 2: Substudy 1: 6 weeks of a mixed diet in combination with a HIIT 3 times a week Group 3: Substudy 2

Sponsors

Institut für Sport und Sportwissenschaft Universität Freiburg
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: - Performing endurance sports (running, cycling, game sports),requiering basic endurance capacity (previously at least 2 units / week) - stable weight and nutritional behavior (mixed food) - willing to be matched - No contraindications to physical activity according to the ACSM guidelines - no metabolic disorders

Exclusion criteria

Exclusion criteria: - Professional or high-volume endurance sports (> 5 units / week) - Malignancies in the past 5 years. - Cardiac disease (e.g. chronic heart disease, arrhythmia, heart valve disease, arthritis, etc.) - Hypertension according to WHO (RRsyst> 140 mmHg and / or RRdiast> 90 mmHg) at rest - Presence of insulin-dependent diabetes mellitus (IDDM) - Presence of a lipid metabolism disorder - Regular use of medication

Design outcomes

Primary

MeasureTime frame
For the following parameters the changes between baseline and week 12 will be analysed: -Muscle mass and fat mass -Repsirator quotient at rest -Respiratory quotient under exertion -VO2 max -Time till exhaustion -ROS level at rest, after a test meal and after exercise -Distance covered in the time trial -GLQI score

Countries

Germany

Contacts

Public ContactDaniel König

Institut für Sport und Sportwissenschaft Universität Freiburg

daniel.koenig@sport.uni-freiburg.de0761 20354085

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026