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

Study Overview
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Brief Summary
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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
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Keywords: Muscle Strength; Muscle Strength Dynamometer; Lower Extremity.

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

Conditions
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Muscle Strength, Muscle Weakness

Intervention / Treatment
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* Diagnostic Test: Assessment of muscle strength by manual dynamometry


Participation Criteria
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Eligibility Criteria
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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

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: muscle strength assessment<br> | Diagnostic Test: Assessment of muscle strength by manual dynamometry<br>* 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.<br>|

What is the study measuring?
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Primary Outcome Measures

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