Reliability and Validation of New Manual Dynamometer to Measure Lower Limb Strength

Reliability and Validation of New Manual Dynamometer to Measure Lower Limb Strength: Clinical Study

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05573139

Enrollment

Registered

2022-10-10

Start date

2021-03-20

Completion date

2021-12-20

Last updated

2022-10-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Muscle Strength, Muscle Weakness

Brief summary

INTRODUCTION: There are several ways to assess muscle strength: not only subjective ways, but also high standard equipment, such as isokinetic dynamometers. These, however, are expensive, and require extensive training. Over the years, manual dynamometers were produced, portable equipment that simplify its use. Among them, a national equipment was developed, but its reliability and validation are yet to be confirmed, compared to equipment already used, such as the Lafayette®. OBJECTIVE: Assess the reliability of a new manual dynamometer - Medeor® device (SP Tech model) -, in relation to the gold standard, Lafayette® device (model 01165), already validated, in the evaluation of muscle strength of the knee and hip groups. METHODS: A total of 26 recruits of both sexes were selected. Muscle strength was measured by Lafayette® and Medeor® dynamometers in the following groups: knee flexors and extensors; flexors, extensors, abductors, adductors, hips internal and external rotators. Each data was collected 3 times, and then the average was calculated.

Detailed description

Keywords: Muscle Strength; Muscle Strength Dynamometer; Lower Extremity.

Interventions

DIAGNOSTIC_TESTAssessment of muscle strength by manual dynamometry

The reliability and validation of a new manual dynamometer was verified, compared to one already used, in the muscle groups: knee extensors and flexors; hip extensors, flexors, abductors, adductors, internal and external rotators.

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 40 Years

Healthy volunteers

Yes

Inclusion criteria

* 20-40 year * both sex * Healthy

Exclusion criteria

* individual who practiced physical activity, * cognitive disability * osteomioarticular diseases in lower limb and/or spine * rheumatic or cardiorespiratory disease

Design outcomes

Primary

Measure	Time frame	Description
Muscle strength assessment by hand dynamometer of the hip	1 day (single assessment)	Assessment of muscle strength by hand dynamometer of the hip
Muscle strength assessment by hand dynamometer of the knee	1 day (single assessment)	Assessment of muscle strength by hand dynamometer of the knee

Countries

Brazil

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026