Assessing the Feasibility of a Novel Dynamometry Protocol for Measuring Finger Extensor Strength

NCT07730008 | Completed DMC

• 1 other identifier: 7053E
• Study Type: observational
• Target: 50
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to evaluate the feasibility and reliability of a novel method for assessing finger extension strength using an adapted dynamometer, addressing the limitation of current hand grasp assessment protocols that focus only on finger flexor muscles. The study will recruit able-bodied adult participants, and a force gauge will be used to obtain precise measures of the strength of their extensor digitorum muscles. Participants will be seated with their upper extremity supported on an adjustable table and have a force gauge, connected to a custom-made support positioned around their proximal phalanx. The support will be connected to a force gauge, which will measure participants' extensor muscles strength in Newtons (N). To assess the feasibility and reliability of this new setup, three measurements will be collected for each hand, with a one-minute interval between each measurement and a 5-minute break between evaluators, with the order randomized to reduce bias. The study will recruit participants from BU's Sargent College of Health and Rehabilitation Sciences and will be conducted by independent evaluators trained in muscle assessment and clinical evaluation of the hand and upper extremities. The total participation time should not exceed 30 minutes per participant. The primary hypothesis is that this novel and accessible device can provide accurate and reliable measurements of participants' finger extensor muscles' strength. Results from this study could have important implications for hand rehabilitation and therapy, particularly for individuals with hand dysfunction due to musculoskeletal disorders or injuries.

Conditions

Healthy Volunteers

Keywords

Dynamometry; Finger Extension; extensor digitorum communis

Outcome Measures

Primary Outcomes (1)

• Finger extensor - muscle force

  Muscle force generated by participant's extensor digitorum muscles (both hands), measured in Newtons.

  1 hour

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

This study will invite a convenience sample of 50 English-speaking adults with no existing medical condition affecting the motor performance of their upper extremities, such as fractures, joint stiffness, neurological, rheumatological, or musculoskeletal conditions

You may qualify if:

• English-speaking adults No diagnosis or history of conditions affecting their upper extremities mobility.

You may not qualify if:

• Current or past history of neurologic, rheumatologic, or orthopedic disorders impacting physical performance; A current disorder affecting cognition; Visual, tactile, or perceptual deficits that could prevent full participation in the study.

Sponsors & Collaborators

• Boston University Charles River Campus: lead

Study Sites (1)

Boston University - Department of Occupational Therapy

Boston, Massachusetts, 02215, United States

Location

Study Officials

• Pedro Almeida, PhD

  Boston University - Department of Occupational Therapy

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 10, 2023
• First Posted: July 28, 2026
• Study Start: August 1, 2023
• Primary Completion: November 30, 2023
• Study Completion: December 31, 2023
• Last Updated: July 28, 2026

Record last verified: 2023-10

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)