Clinical trial NCT06949371: Investigation of the Effects of Chronotype Differences on Balance and Muscle Strength in Young Adults
Official title: Investigation of the Effects of Chronotype Differences on Balance and Muscle Strength in Young Adults
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: NA
Conditions: Chronotype
Keywords: Chronotype
muscle strength
balance
functionality
Lead sponsor: Istanbul Medipol University Hospital
Sponsor class: OTHER
First posted: 2025-04-29
Enrollment: 40
Sex: ALL
Minimum age (years): 45
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The aim of this study is to investigate the effects of chronotype differences on balance and muscle strength in young adults. Chronotypes of all participants will be determined using the Morningness-Eveningness Questionnaire. All assessment measurements determined for young adult individuals will be performed first at 09:00 in the morning and then again at 19:00 in the evening.

Detailed description: The aim of this study is to investigate the effects of chronotype differences on balance and muscle strength in young adults. Inclusion criteria are being between 45-65 years old, not having any neurological or orthopedic disorders, not having a vestibular disease that causes balance problems. Exclusion criteria are trauma history, anatomical deformities and skeletal system fractures, having a previous injury, and the presence of pain that will prevent participation in the tests. Chronotypes of all participants will be determined using the Morningness-Eveningness Questionnaire. All assessment measurements determined for young adult individuals will be performed first at 09:00 in the morning and then again at 19:00 in the evening. Muscle strength and balance assessments made in the morning and evening will be compared. Chronotypes of the participants will be evaluated with the Morningness-Eveningness Questionnaire, their balance will be evaluated with the One-Legged Standing Test, lower extremity muscle strength with a myometer, and their functionality will be evaluated with the Timed Stand-Up-Sit Test and the 30-Second Sit-Up Test.

Eligibility criteria: Inclusion Criteria:

* being between 45-65,
* not having any neurological or orthopedic disorder,
* not having a vestibular disease that causes balance problems.

Exclusion Criteria:

* trauma history,
* anatomical deformities and skeletal system fractures,
* having a previous injury and the presence of pain that would prevent participation in the tests.

Primary outcomes:
measure: Morningness-Eveningness Questionnaire
timeFrame: 20 minutes
measure: Single-leg standing test
timeFrame: 20 minutes
measure: Muscle strength test
timeFrame: 20 minutes
measure: Timed up and go testTest:
timeFrame: 20 minutes
measure: 30 Second Sit-to-Stand Test
timeFrame: 20 minutes
Secondary outcomes:
Other outcomes:
Locations:
city: Istanbul
country: Turkey
facility: Istanbul Medipol University
Study officials:
affiliation: Medipol University
name: MERVE YILMAZ MENEK, Assoc. Prof.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Facer-Childs ER, Boiling S, Balanos GM. The effects of time of day and chronotype on cognitive and physical performance in healthy volunteers. Sports Med Open. 2018 Oct 24;4(1):47. doi: 10.1186/s40798-018-0162-z.