Cognitive and Psychomotor Skills and Behavioural Changes During Ramadan in Women

NCT06865014 | Completed

• 1 other identifier: BAIBU-SBF-UK-02
• Study Type: observational
• Target: 22
• Locations: 1 country
• Sites: 1

Brief Summary

This study will observe the participants fasting during the month ramadan. Descriptive characteristics and assessments of sleep, food consumption, body composition, cognitive skills, anticipation time, and physical activity will be conducted before, during and after ramadan.

Conditions

Fasting, Intermittent; Food Habits; Sleep

Keywords

Physical Fitness; Body Composition; Cognitive Skills; Ramadan Fasting; Anticipation Time

Outcome Measures

Primary Outcomes (8)

• Actigraphy

  Actigraphy is a less invasive method compared to other sleep measurement methods such as polysomnography

  Pre-test, following one week first mid-test, following three weeks second mid-test and following two weeks post-test

• Body weight measurement

  Test that involves measuring body weight using medical scales

  Pre-test, following one month mid-test and following another one month post-test

• Body fat percentage

  Includes determination of body fat percentage using a bioelectrical impedance analyzer

  Pre-test, following one month mid-test and following another one month post-test

• Food consumption assessment

  Participants will be asked to record their food and liquid intake in detail for three consecutive days (two weekdays and one weekend day). All data will then be entered into the nutrition data system, and total energy intake, carbohydrate amount (CHO), protein, fat, and liquid consumption will be calculated.

  Pre-test, following one week first mid-test, following three weeks second mid-test and following two weeks post-test

• Stroop test

  The Stroop test reflects mainly the frontal lobe activity. The Stroop effect demonstrates an individual's ability to shift perceptual setup according to changing demands, suppress habitual response patterns, and perform unconventional actions, which are primarily related to frontal lobe activity. The test also measures information processing speed.

  Pre-test, following one week first mid-test, following three weeks second mid-test and following two weeks post-test

• Letter Digit Substitution Test

  The Letter Digit Substitution Test is an adapted matching test developed to measure information processing speed. The test contains a key containing nine letters of the alphabet and the numbers 1 to 9. Then there are randomly arranged letters and participants will be asked to match the random letters with the appropriate number indicated by the key.

  Pre-test, following one week first mid-test, following three weeks second mid-test and following two weeks post-test

• Anticipation time measurement

  The anticipation time will be measured using the 50575 model of the Bassin Anticipation Timer. The sensitivity of the device will be set to 0.001 seconds, with the anticipation device's speed set to 11 mph (4.9 m/s) and the delay time set to 0-2 seconds. Each participant will undergo 20 measurements per session. Measurements will be manually recorded on the anticipation time measurement sheet. The test position for all participants will be standing vertically in front of the anticipation device, with the motion light approaching them. The participant will stand at the end of the device, using their dominant hand to press the stop button at sternum height with one hand. The researcher will hide the start command button behind them to ensure participants cannot see when the test begins. After each trial is recorded, the next trial will be conducted. The fixed anticipation time error (SzSh) and absolute anticipation time error (SzMh) will be automatically calculated.

  Pre-test, following one week first mid-test, following three weeks second mid-test and following two weeks post-test

• Physical activity level assessment

  The International Physical Activity Questionnaire (IPAQ) will be used to determine their level of physical activity levels. The questionnaire consists of sections that inquire about vigorous physical activity, moderate physical activity, and walking activities of at least 10 minutes duration over the past seven days.

  Pre-test, following one week first mid-test, following three weeks second mid-test and following two weeks post-test

Secondary Outcomes (2)

• Pittsburgh Sleep Quality Index (PSQI)

  Pre-test, following one month mid-test and following another one month post-test

• Chronotype assessment

  Only once in the pre-test

Study Arms (1)

Ramadan Intermittent Fasting Group

Twenty two healthy, moderately active young women who regularly fast during Ramadan.

Other: Intermittent Ramadan Fasting

Interventions

Intermittent Ramadan Fasting OTHER

Intermittent fasting during the month Ramadan

Ramadan Intermittent Fasting Group

Eligibility Criteria

• Age: 18 Years - 24 Years
• Gender Eligibility Details: This study will focus on female participants.
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Twenty two healthy, moderately active young women who regularly fast during the month Ramadan will be the participants in this study.

You may qualify if:

• Voluntariness: Participants must be willing to participate in the study voluntarily and provide informed consent.
• Absence of any health issues
• No chronic sleep problems
• No use of sleep medication
• Fasting throughout the study period during the month Ramadan

You may not qualify if:

• Complications During the Intervention: Participants who experience any complications during the month Ramadan while fasting.
• Irregular fasting behavior during Ramadan

Sponsors & Collaborators

• Abant Izzet Baysal University: lead

Study Sites (1)

Bolu Abant İzzet Baysal University, Faculty of Sport Sciences,

Bolu, 14030, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Intermittent Fasting; Feeding Behavior

Condition Hierarchy (Ancestors)

Fasting; Behavior; Behavior, Animal

Study Officials

• Umid Karli, PhD

  Bolu Abant İzzet Baysal University, Faculty of Sport Sciences, Department of Coaching Education

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: March 4, 2025
• First Posted: March 7, 2025
• Study Start: February 23, 2025
• Primary Completion: March 15, 2025
• Study Completion: May 10, 2025
• Last Updated: July 10, 2025

Record last verified: 2025-07

Locations

TU (1)