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Acute Effect of Plyometric Exercises on Musculotendinous Properties

NCT ID: NCT04273971

Last Updated: 2020-11-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-02-20

Study Completion Date

2022-03-30

Brief Summary

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Preventive and rehabilitation programs include plyometric exercises to promote agility, power, and muscle activation pattern during jumping. These exercises also are known to cause a high mechanical load that increases the risk of a musculoskeletal injury. The knowledge regarding the musculoskeletal damage result from this configuration of exercise can help to elaborate safer and effective training and rehabilitation programs. In this study, the investigators will conduct a clinical trial to determine the acute effect of plyometric exercises on damage caused on different portions of quadriceps and biceps femoral's muscles and tendons of quadriceps, and biceps femoral, and its effects on mechanical properties.

Detailed Description

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This is a single-arm clinical trial aiming to determine the acute effect of one session of plyometric exercises on quadriceps and biceps femoral musculotendinous properties in healthy individuals.

The sample size was determined using G\*Power software considering the application of ANOVA: Repeated measures, between factors, 90% power, alpha 0.05. Data from muscle echo intensity of the rectus femoral by Muddle et al. (2019) were considered for this calculation, with an effect size 0.44. A total of 30 individuals was required for this study.

The outcomes will include the muscle and tendon quality, and mechanical properties of the tendon. The assessments will be performed at three different moments: before exercise, immediately after, and 48 hours after exercise.

The data analysis will be performed per protocol. Generalized estimating equations will be used to identify the effects of time followed by Bonferroni posthoc. When effects are found, effect sizes will be estimated. Missing data will be estimated by statistical analysis.

Conditions

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Healthy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Single-arm design where all participants receive treatment.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

The statistical analyzer will be masking for the time factor.

Study Groups

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Plyometric exercise

Group Type EXPERIMENTAL

Plyometric exercises

Intervention Type OTHER

Plyometric exercises will be composed of vertical jumps, box jumps, half squat jumps, high straight jumps, bounding jumps, drop jumps and 10-m sprint.

Interventions

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Plyometric exercises

Plyometric exercises will be composed of vertical jumps, box jumps, half squat jumps, high straight jumps, bounding jumps, drop jumps and 10-m sprint.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Who practice physical activity (except jump training);
* No previous lower extremity muscle injury at least 6 months before the recruitment;
* No previous lower extremity ligament or tendon injury or surgery;
* No auditory, vestibular, visual or musculoskeletal injuries or disease that limit the execution of the exercise and assessment protocols;
* No hypertension, cardiovascular, or respiratory disease.

Exclusion Criteria

* Body mass index greater than 30 kg/m².
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Conselho Nacional de Desenvolvimento Científico e Tecnológico

OTHER_GOV

Sponsor Role collaborator

Federal University of Rio Grande do Sul

OTHER

Sponsor Role collaborator

Universidade Federal de Santa Maria

OTHER

Sponsor Role lead

Responsible Party

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Karine Josibel Velasques Stoelben

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Felipe P Carpes, PhD

Role: STUDY_DIRECTOR

Universidade Federal do Pampa

Marco A Vaz, PhD

Role: STUDY_CHAIR

Federal University of Rio Grande do Sul

Locations

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Karine Josibel Velasques Stoelben

Uruguaiana, Rio Grande do Sul, Brazil

Site Status

Countries

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Brazil

Other Identifiers

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20180702141429

Identifier Type: -

Identifier Source: org_study_id