The Relationship Between Hand Grip Strength, Trunk Control and Functional Performance in Individuals With Mild Mental Retardation

April 12, 2025 updated by: Burak Buğday, Inonu University

Scope and Limitations of the Project This project aims to examine the relationship between hand grip strength, trunk control, and functional performance in individuals with mild intellectual disability (MID). Individuals with MID face significant challenges in daily life activities and social interactions due to deficiencies in motor skills. Hand grip strength is considered a fundamental indicator of overall muscle strength and level of independence, while trunk control plays a crucial role in both postural stability and dynamic movement coordination.

The project seeks to scientifically evaluate the physical and functional parameters of these individuals and highlight the impact of motor control on daily living activities. The study is limited to individuals aged 12-18, including those with intellectual disabilities attending rehabilitation centers and healthy individuals visiting hospitals. While this limitation allows for a focused examination of the needs of a specific group, it may also restrict the generalizability of the findings to the broader population.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Purpose of the Study The aim of this study is to determine the relationship between hand grip strength, trunk control, and functional performance in individuals with mild intellectual disability. In this regard, the study aims to examine the physical factors affecting motor control and functional independence in these individuals. By revealing the impact of hand grip strength on trunk stability and overall functional capacity, the study seeks to contribute to the development of specialized rehabilitation programs for these individuals.

Research Question Is there a significant relationship between hand grip strength, trunk control, and functional performance in individuals with mild intellectual disability?

Hypotheses H0 (Null Hypothesis): There is no relationship between hand grip strength, trunk control, and functional performance in individuals with mild intellectual disability.

H1 (Research Hypothesis): There is a positive and significant relationship between hand grip strength, trunk control, and functional performance in individuals with mild intellectual disability.

Objectives of the Study To measure hand grip strength in individuals with mild intellectual disability and compare it with the normal population.

To determine trunk control levels in these individuals and examine its relationship with hand grip strength.

To assess functional performance (level of participation in daily living activities) and determine its correlation with hand grip strength.

To identify the key physical parameters that should be emphasized in rehabilitation programs based on the findings.

Significance of the Study Motor control and functional limitations commonly observed in individuals with mild intellectual disability can negatively affect their participation in daily life activities. Hand grip strength is a crucial indicator of both overall muscle strength and independence in daily activities. The results of this study could provide a scientific basis for developing physical rehabilitation and occupational therapy approaches tailored for individuals with special needs. Additionally, this research aims to highlight the importance of targeted interventions to improve the quality of life for these individuals.

By focusing on a specific population, this study seeks to provide practical and applicable findings and serve as a reference for similar studies conducted in specialized centers.

Study Type

Observational

Enrollment (Estimated)

50

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Turkey
      • Malatya, Turkey, 44280
        • Recruiting
        • Malatya Training and Research Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

This research is designed to examine the relationship between hand grip strength, trunk control and functional performance in individuals with mild mental retardation. Data collection will be carried out in accordance with ethical rules from rehabilitation and hospitalized individuals.

Description

Inclusion Criteria:

  • Clinical diagnosis of mild mental retardation
  • Individuals aged between 12 and 18 years
  • Sufficient physical ability to perform hand grip strength measurements

Exclusion Criteria:

  • Impaired trunk control due to an orthopedic or neurological disorder
  • Psychological or physical conditions that prevent active participation in the assessments
  • Mental illnesses or physical disorders in otherwise healthy individuals that may affect measurement outcomes

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Mild Intellectual Disability (MID) in Children
Mild Intellectual Disability (MID) refers to a neurodevelopmental condition where a child's cognitive abilities and adaptive functioning are below average compared to peers. It typically manifests with an IQ score between 50-70 and difficulties in daily life skills, problem-solving, and academic performance.
Other: Hand grip strength
Collection Tools a) Hand Grip Force Measurement: Hand grip strength will be measured using a digital dynamometer. The measurement will be performed three times in the dominant and nondominant hand of the participant and the average value will be taken (1). b) Trunk Control Assessment: Trunk control will be assessed with the McGill core endurance test. This scale is a valid and reliable tool to objectively measure trunk stability and dynamic control levels (2). c) Motor skill assessment: Timed Up and Go Test: The Timed Up and Go Test was used to assess functional mobility and dynamic balance (3). The patient was told to get up from the chair, walk 3 meters, return and sit back in the chair. The time was recorded. Timed Stair Climbing Test: It consists of the individual climbing the stairs and returning to the starting point. The elapsed time was recorded
Other Names:
  • trunk control
  • functional performance
Normal Development group
A typically developing child follows expected milestones in physical, cognitive, social, and emotional growth according to age. Their development occurs naturally without significant delays or disabilities.
Other: Hand grip strength
Collection Tools a) Hand Grip Force Measurement: Hand grip strength will be measured using a digital dynamometer. The measurement will be performed three times in the dominant and nondominant hand of the participant and the average value will be taken (1). b) Trunk Control Assessment: Trunk control will be assessed with the McGill core endurance test. This scale is a valid and reliable tool to objectively measure trunk stability and dynamic control levels (2). c) Motor skill assessment: Timed Up and Go Test: The Timed Up and Go Test was used to assess functional mobility and dynamic balance (3). The patient was told to get up from the chair, walk 3 meters, return and sit back in the chair. The time was recorded. Timed Stair Climbing Test: It consists of the individual climbing the stairs and returning to the starting point. The elapsed time was recorded
Other Names:
  • trunk control
  • functional performance

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mean Hand Grip Strength in kilograms (kg)
Time Frame: Baseline (Day 0) and Week 8

Hand grip strength will be measured using a standard Jamar dynamometer in a seated position, with the elbow flexed at 90 degrees. The best of three consecutive trials for each hand will be recorded and averaged.

Unit of Measure: kilograms (kg)
Baseline (Day 0) and Week 8
Trunk Control Test Score (0-100 points)
Time Frame: Measured at baseline (Day 0) and at the end of the 8-week intervention period (Week 8)

Trunk control will be evaluated using the Trunk Control Test (TCT), which assesses four functional movements: rolling to the weak side, rolling to the strong side, sitting up from lying down, and maintaining a sitting position. Each task is scored, and total scores range from 0 to 100.

Unit of Measure: points (0-100)
Measured at baseline (Day 0) and at the end of the 8-week intervention period (Week 8)
Total Functional Independence Measure (FIM) Score
Time Frame: Baseline (Day 0) and Week 8

Functional performance will be assessed using the Functional Independence Measure (FIM), which evaluates self-care, mobility, communication, and social cognition. Scores range from 18 to 126, with higher scores reflecting greater independence.

Unit of Measure: points (18-126)
Baseline (Day 0) and Week 8

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Inonu University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

May 26, 2025

Primary Completion (Estimated)

June 15, 2025

Study Completion (Estimated)

July 15, 2025

Study Registration Dates

First Submitted

March 14, 2025

First Submitted That Met QC Criteria

April 12, 2025

First Posted (Actual)

April 18, 2025

Study Record Updates

Last Update Posted (Actual)

April 18, 2025

Last Update Submitted That Met QC Criteria

April 12, 2025

Last Verified

April 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2025/6862

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Study Data/Documents

  1. Clinical Study Report

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Mental Retardation

Clinical Trials on Hand grip strength

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Venezuela

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe