The Effect of Circadian Rhythm on Physical Performance in Healthy Male Individuals

Istanbul Bilgi University

Status: Not yet enrolling

Conditions: Chronotype; Exercise

Treatments: Other: Theraband Strengthening Exercise Program

Study type: Interventional

Funder types: Other

Identifiers

NCT06311539

IstanbulBUFC4

Details and patient eligibility

About

Little is known about optimizing the timing of exercise periods to maximize the health benefits of exercise. Furthermore, exercise is a potent modulator of skeletal muscle metabolism and it is clear that skeletal muscle has a robust circadian profile. Circadian rhythms can be observed in behavior, physiology, and metabolism. Various studies show that exercise changes the rhythm of the clock machines in skeletal muscle. Studies examining the relationship between exercise, especially strength training, and circadian rhythm are quite limited in the literature. Although some studies have shown that force peaks in the afternoon/evening hours, regardless of muscle group and contraction speed, there are no studies on how much this time interval varies from person to person and chronotype.

The aim of this study is to investigate to what extent strength training given at appropriate times for morning, evening and intermediate chronotypes creates changes in performance in healthy adult male individuals.

Full description

After participants are informed about the research, evaluation and exercise protocol, their signed consent will be obtained.

The Morningness-Eveningness Questionnaire will be applied until 30 participants with morning type and 30 evening type chronotypes are reached. (Estimated for 100 students) After determining 30 morning type and 30 evening type participants, isokinetic evaluations will be made and vertical jump heights will be measured (T0).

Then, 15 morning type participants will be included in the morning exercise program (08:00) and 15 morning type participants will be included in the evening exercise program (18:00).

15 evening type participants will be included in the morning exercise program (08:00) and 15 evening type participants will be included in the evening exercise program (18:00).

Thus, some of the participants from both morning and evening groups will be included in strength training for 6 weeks, at a time appropriate to their chronotypes, and some at a time incompatible with their chronotypes. Isokinetic evaluations and vertical jump height measurements will be repeated at the end of the strengthening exercise program, which will last 3 days a week for 6 weeks, a total of 18 sessions.

Enrollment: 60 estimated patients

Sex: Male

Ages: 18 to 30 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Being male,
• Between the ages of 18-30
• Having a chronotype that was morning person or evening person in the Morningness-Eveningness Questionnaire

Exclusion criteria

• Being female
• Having an intermediate chronotype in the Morningness-Eveningness Questionnaire
• Having a history of surgery or limitation in the knee area
• Having a metabolic, neurological, or orthopedic disorder.

Trial design

Primary purpose: Screening

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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60 participants in 2 patient groups

Morning chronotype

Experimental group

Description:

Participants who score between 59-70 in the Morningness Eveningness Questionnaire will be assigned to the morning chronotype group.

Treatment:

Other: Theraband Strengthening Exercise Program

Evening chronotype

Experimental group

Description:

Participants who score between 16-41 in the Morningness Eveningness Questionnaire will be assigned to the evening chronotype group.

Treatment:

Other: Theraband Strengthening Exercise Program