Pressure Pain Tolerance in Relation to Balance and Strength in Children

March 26, 2025 updated by: Adly A Adam

Pressure Pain Tolerance in Relation to Balance and Strength in Children With Sickle Cell Anemia

Sickle cell disease (SCD) is the most frequent life-threatening genetic hemoglobinopathy in the world and occurs due to the synthesis of abnormal hemoglobin S (HbS).Cells with sickle cell hemoglobin are stiff and sticky. When they lose their oxygen, they form into the shape of a sickle or crescent. This can cause pain and tissue damage. Significant decrease in exercise capacity was seen in sickle cell anemic children. In the absence of a guidelines that can guide the prescription of exercise in SCD children. This study is a step for determine the forms of prescription of pain on the balance and muscle strength to build up in future studies a safety of physical exercises for children with sickle cell anemia and improve their functional abilities.

Study Overview

Detailed Description

Sickle cell anemia is a serious life-limiting and potentially life-threatening condition that causes disruption in the lifestyle of the affected child. Pain is a common and severe symptom of sickle cell disease (SCD) and is the major reason that patients seek health care services. Some researchers supported the fact that an important impairment in balance control and muscle strength in children with sickle cell disease due to pressure pain tolerance problems and other factors. Significant decrease in exercise capacity was seen in sickle cell anemic children. The altered muscle function and balance observed in SCD children may collectively be the result of pressure pain tolerance impairment. As your physical fitness improves, your body becomes more efficient at getting oxygen into the bloodstream and transporting it to the working muscles. Along this observational correlational study design; Eighty children from both sexes will be participated in this study. Forty normal healthy children will be selected from primary governmental schools at Alexandria governorate and forty children with sickle cell anemia will be selected from Alexandria University Students Hospitals For evaluation of muscle strength hand held dynamometer (Lafayette) is one of the best methods to detect the muscle strength. It is an ergonomic hand-held device for objectively quantifying muscle strength

Study Type

Interventional

Enrollment (Estimated)

80

Phase

  • Not Applicable

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

      • Giza, Egypt, 002
        • Recruiting
        • El-Tahrir st.- in front of Ben El-Sarayat, Ad Doqi Al Giza, Giza Governate
        • Contact:
        • 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

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age range range was 9-14 years old.
  • Could follow given instructions.
  • Children with Sickle cell anemia were medically stable, and take their medications regularly.
  • Children with Sickle cell anemia had experience of chronic pain that lasts more than 6 months.
  • All children with Sickle cell anemia have average weight, height, and body mass index based on their age percentiles.
  • All normal healthy children did not participating in regular sport activities, particularly including lower limb strengthening.

Exclusion Criteria:

  • Defined cardiovascular or respiratory disorders.
  • Renal failure.
  • Myocardial infarction, mainly within last month.
  • Unstable angina.
  • Recent thoracoabdominal surgery.
  • Thoracic or abdominal aneurysm or current pneumothorax.
  • Painful vaso-occlusive crises.
  • Muscular contractures, Joints' stiffness, or deformities.
  • Neuromuscular problems i.e., myositis or peripheral neuropathy.

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

  • Primary Purpose: Other
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Normal Healthy children
All forty normal healthy children will undergo measurement of pressure pain tolerance via digital pressure algometry, balance assessment using HUMAC balance system, and evaluation lower limb strength using Lafayette Hand Held Dynamometer.
Pressure pain tolerance will be measured using pressure algometer for all participants in both groups. Pressure pain tolerance will be measured in a relaxed sitting position to evaluate on quadriceps muscle. Initially, a teddy bear will be used for demonstration.

HUMAC balance system will be calibrated, then will conduct

  1. center of pressure: will instructed child to stand on platform, and maintain own body stability, and focus on the red dot in the center of screen that will move in response to body sway. after a rest, second trial will be done.
  2. Eye open/ closed firm surface tests: First for Eye open firm surface test; the child will be asked to look at a target on the wall that was set at his/ her eye level, and to stare at this target for 30 seconds while standing on firm surface. After 5 seconds rest. Eye closed firm surface test; child will be asked to close his/ her eyes for 30 seconds, and conducting the same procedures for balance testing.

The researcher will documented the values resented on the screen .

Lower limb muscular ' Isometric quadriceps strength' will be measured for all participants in both groups. each participating child will be instructed to sit to assess the strength of knee extension, which minimize positional changes, and enhance feasibility of this clinical test. then The researcher will apply resistance to child's quadriceps to gain maximal voluntary isometric contraction with pressing the activated Lafayette hand held dynamometer padded stirrup against quadriceps belly, then recorded and documented measured value.
Other Names:
  • Isometric quadriceps strength'
Experimental: Sickle cell anemia children
All forty Sickle cell anemia children will undergo measurement of pressure pain tolerance via digital pressure algometry, balance assessment using HUMAC balance system, and evaluation lower limb strength using Lafayette Hand Held Dynamometer.
Pressure pain tolerance will be measured using pressure algometer for all participants in both groups. Pressure pain tolerance will be measured in a relaxed sitting position to evaluate on quadriceps muscle. Initially, a teddy bear will be used for demonstration.

HUMAC balance system will be calibrated, then will conduct

  1. center of pressure: will instructed child to stand on platform, and maintain own body stability, and focus on the red dot in the center of screen that will move in response to body sway. after a rest, second trial will be done.
  2. Eye open/ closed firm surface tests: First for Eye open firm surface test; the child will be asked to look at a target on the wall that was set at his/ her eye level, and to stare at this target for 30 seconds while standing on firm surface. After 5 seconds rest. Eye closed firm surface test; child will be asked to close his/ her eyes for 30 seconds, and conducting the same procedures for balance testing.

The researcher will documented the values resented on the screen .

Lower limb muscular ' Isometric quadriceps strength' will be measured for all participants in both groups. each participating child will be instructed to sit to assess the strength of knee extension, which minimize positional changes, and enhance feasibility of this clinical test. then The researcher will apply resistance to child's quadriceps to gain maximal voluntary isometric contraction with pressing the activated Lafayette hand held dynamometer padded stirrup against quadriceps belly, then recorded and documented measured value.
Other Names:
  • Isometric quadriceps strength'

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pressure pain tolerance
Time Frame: Baseline of the study.
Pressure pain tolerance measured via digital pressure algometer. It determines the pressure amount could be tolerated over quadriceps. This will represented chronic pain among Sickle cell anemia children in order to aid in diagnosis of hyperalgesia thus provide insight into their management strategies. Digital pressure algometer determines enables the rater to quantify the mechanical sensitivity to pain and the recovery of underlying problems or soreness levels in a semi-objective manner.
Baseline of the study.
Balance assessment
Time Frame: Baseline of the study.
Balance assessed via HUMAC balance system to define musculoskeletal involvement in sickle cell anemia children. HUMAC balance system is an electronic balance board connected with laptop running HUMAC balance system software.
Baseline of the study.
Lower limb muscle strength
Time Frame: Baseline of the study.
Lower limb muscle (Quadriceps) strength evaluated via Lafayette hand held dynamometer to evaluate voluntary isometric contraction. Hand held dynamometer has a good to excellent reliability and validity mainly for proximal musculatures.
Baseline of the study.

Collaborators and Investigators

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

Sponsor

Investigators

  • Study Chair: Shimaa A Ahmed, PHD, Head of Haematology Dept, Faculty of Medicine, Alexandria University
  • Study Director: Elham M Salem, PHD, Professor of Physical Therapy, Faculty of Physical Therapy, Cairo University

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 (Actual)

February 1, 2024

Primary Completion (Estimated)

August 1, 2025

Study Completion (Estimated)

August 30, 2025

Study Registration Dates

First Submitted

July 25, 2024

First Submitted That Met QC Criteria

July 29, 2024

First Posted (Actual)

July 31, 2024

Study Record Updates

Last Update Posted (Actual)

April 1, 2025

Last Update Submitted That Met QC Criteria

March 26, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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.

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