Brief Summary

Modern lifestyles are marked by a prevalence of sedentary behaviors and physical inactivity, which have been linked to numerous adverse health effects. While regular physical exercise is a well-established countermeasure, exercising in the late afternoon may paradoxically disrupt deep sleep due to increased core body temperature. Inactive and sedentary individuals, who often have impaired autonomic function compared to endurance-trained athletes, may be particularly susceptible to these negative effects, potentially resulting in compromised thermoregulation and exacerbated disruptions to deep sleep, a critical stage of sleep essential for overall recovery. Therefore, this study aims to investigate the impact of aerobic exercise performed in the late afternoon versus morning on: 1) deep sleep and sleep onset latency; and 2) core body temperature and its autonomic regulatory mechanisms on endurance-trained and inactive-sedentary people.

Conditions

• Healthy Endurance Athlet
• Inactive People

Intervention / Treatment

• Other: Aerobic Exercise

Primary Outcome Measures

• Duration of deep slow-wave sleep (Once a month for 3 months)
  Evaluation of the duration of deep slow-wave sleep (N3 stage) quantified by the EEG signal from polysomnography (Nox A1, Resmed®, USA).

Countries

France

Locations and Investigators

• Chu Saint-Etienne, Saint-Etienne, France (Recruiting)
  • Florian CHOUCHOU, Ph.D. student
  • Léonard FEASSON, PhD
  • Frédéric ROCHE, PhD (Principal Investigator)
  • Léonard FEASSON, PhD
  • Clément FOSCHIA, MD
  • Philippe BOIRON, MD
  • David HUPIN, MD

Study Officials

• Frédéric ROCHE, PhD (Principal Investigator) — Centre Hospitalier Universitaire de Saint Etienne