Light, Exercise Intensity and Mood in Overweight

NCT02636335 | Completed

• 1 other identifier: LEXI-MO
• Study Type: interventional
• Target: 26
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to determine if an exposure to light in the morning has a positive influence on self-chosen exercise intensity on a bicycle ergometer in overweight and obese patients.

Conditions

Overweight, Obesity Grade I

Outcome Measures

Primary Outcomes (1)

• Mean power output in watts

  Power output during the first 30 minute time-trial on a bicycle ergometer.

Secondary Outcomes (3)

• Subjective sleepiness

  1 minute after the light exposure vs. 1 minute before the light exposure in the first time trial

• Subjective Mood

  1 minute after the light exposure vs. 1 minute before the light exposure in the first time trial

• Mean power output in watts during the first, second and third time-trial on a bicycle ergometer.

  Mean of the 30 minutes of the exercise from the first, second and third time-trial.

Study Arms (2)

Bright Light

EXPERIMENTAL

8 a.m. study participants will be exposed to Bright Light (4500 lx) Phillips Energy Light HF3319 for 30 minutes prior and during a 30 minute lasting exercise test with self-chosen exercise intensity on a bicycle ergometer. The light exposure and time-trial will be performed in three repetitive exercise sessions 48h apart.

Device: Phillips Energy Light HF3319

Control

EXPERIMENTAL

8 a.m. study participants will be exposed to a Control Light Condition (230 lx) Phillips Energy Light HF3319 for 30 minutes prior and during a 30 minute lasting exercise test with self-chosen exercise intensity on a bicycle ergometer. The light exposure and time-trial will be performed in three repetitive exercise sessions 48h apart.

Device: Phillips Energy Light HF3319

Interventions

Phillips Energy Light HF3319 DEVICE

Exposure to Light administered with Phillips Energy Light HF3319.

Bright Light; Control

Eligibility Criteria

• Age: 18 Years - 40 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Body Mass Index 25 - 35 kg/m2

You may not qualify if:

• Women who are pregnant or breast feeding,
• Other clinically significant concomitant disease states (e.g., renal failure, hepatic dysfunction, cardiovascular disease, etc.),
• Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant
• Previous enrolment into the current study
• Participation in other studies in the last four weeks
• Systolic blood pressure \> 170 mmHg, diastolic blood pressure \> 100 mmHg
• Shift work in the last two months
• Travels across time zones in the last four weeks
• Use of photosensitisation drugs
• Clinical manifest depression
• Cardiovascular diseases which reduce age-appropriate exercise capacity

Sponsors & Collaborators

• University of Basel: lead

Study Sites (1)

Departement of Sport, Exercise and Health

Basel, 4052, Switzerland

Location

MeSH Terms

Conditions

Overweight

Condition Hierarchy (Ancestors)

Overnutrition; Nutrition Disorders; Nutritional and Metabolic Diseases; Body Weight; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Arno Schmidt-Trucksäss, Prof.

  University of Basel

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Head of Departement of Sport, Exercise and Health, Principal Investigator

Study Record Dates

• First Submitted: December 14, 2015
• First Posted: December 21, 2015
• Study Start: January 1, 2016
• Primary Completion: June 1, 2017
• Study Completion: June 1, 2017
• Last Updated: June 29, 2017

Record last verified: 2017-06

Locations

CH (1)