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OpenTrials
Completed

NCT Number: NCT07015008

Sleep and Maximal Fat Oxidation

Introduction: Despite the awareness of the importance of sleep in our lives, especially for athletes, the consequences of poor rest on sports performance are not well understood. Furthermore, the interaction between complete and partial sleep deprivation over one night and sleeping the usual hours for each person remains unclear.

Objectives: The aim of this study is to evaluate the effects of sleep deprivation on maximal fat oxidation (MFO) in male and female participants.

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Key information

Conditions

Sleep Deprivation Dyssomnias Mental Disorders Nervous System Diseases Neurologic Manifestations Pathological Conditions, Signs and Symptoms Signs and Symptoms Sleep Wake Disorders

Age range

18 year–35 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Facultad de Medicina y Ciencias de la Salud. Universidad de Alcalá

Alcalá de Henares, Madrid, Spain

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Inclusion Criteria:
  • Age between 18 and 35 years.
  • Body Mass Index (BMI) < 25 kg/m².
  • Resistance-trained individuals (more than 2 years of structured training).
  • Healthy men and women without neurological, cardiometabolic, immunological, or physical conditions that prevent them from exercising.
  • Participants must be able to perform the tests described in the following section.

Exclusion criteria

  • History of neuromuscular diseases, heart disease, or conditions that may affect liver or muscle metabolism.
  • Use of drugs, stimulants, or sports supplements that could interfere with the dietary supplement used in the study.
  • Sedentary habits (less than 150 minutes/week of moderate exercise).
  • Having undergone prolonged periods of physical inactivity in the 6 months prior to the study.
  • Engaging in strenuous exercise within 48 hours prior to the tests.
  • Failure to replicate the same food intake on both experimental days.
  • Consumption of caffeine or any other stimulant the day before the tests.

Treatment and study plan

Sleep deprivation

Behavioral

Partial (4h) or total (0h) sleep deprivation

Sleep place

Behavioral

8h sleep at home or in the laboratory

Primary outcomes

  1. Maximal Fat Oxidation Rate

    Time frame: Through study completion, an average of 4 weeks

    g/min using a metabolic chart

Secondary outcomes

  1. Fat mass

    Time frame: Through study completion, an average of 4 weeks

    Using electrical bioimpedance (kg of body mass)

  2. Fat-free mass

    Time frame: Through study completion, an average of 4 weeks

    Using electrical bioimpedance (kg of body mass)

Sponsors and collaborators

Lead sponsor

University of Alcala

Other

Registry information

Official study title

Relationship Between Sleep Time and Maximal Fat Oxidation Capacity During Exercise.

Acronym: Sleep&Fat

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jun 11, 2025
Registry last updated
Jun 11, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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