Efficacy of Inertial Flywheel vs Heavy Slow Resistance Training Among Athletes With Patellar Tendinopathy

NCT ID: NCT03917849

Last Updated: 2020-07-15

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

COMPLETED

Clinical Phase

NA

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-02

Study Completion Date

2020-03-22

Brief Summary

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The purpose of this project is to investigate the efficacy of Inertial Flywheel Resistance program vs Heavy slow resistance in patients with chronic patellar tendinopathy.

The investigators hypothesize that Inertial Flywheel Resistance program will yield a more positive clinical outcome and function in patients with patellar tendinopathy compared to heavy slow resistance group.

Detailed Description

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Randomized controlled intervention study

Conditions

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Patellar Tendinitis Jumper's Knee

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Heavy slow resistance training

The program is performed 3 times per week using resistance equipment in a fitness center. Each session consists of three 2-legged loaded quadriceps and lower limb kinetic chain exercises. The patients complete 3 or 4 sets in each exercise with a 2- to 3-minute rest between sets and a 5-minute rest period between the 3 exercises.

The number of repetitions decreases, and load gradually increases, every week. The repetitions and loads are as follows: 3 times, 15-repetition maximum (15RM ), in week 1; 3 times, 12RM , in weeks 2 to 3; 4 times, 10RM , in weeks 4 to 5; 4 times, 8RM , in weeks 6 to 8; and 4 times, 6RM , in weeks 9 to 12.

Group Type EXPERIMENTAL

Exercises program for patellar tendinopathy

Intervention Type BEHAVIORAL

To compare the effectiveness of the inertial flywheel resistance program versus slow heavy resistance in patients with chronic patellar tendinopathy

Inertial flywheel resistance training

The program is performed 3 times per week using resistance equipment in a fitness center. Inertial flywheel resistance is a type of strength training; which is based on the increasing demands on eccentric action (breaking) after a concentric action (acceleration), due to the inertial load caused during the return movement. The patients complete 12 repetition máximum (RM) with moment inertia 0.05 m² from week 1-6 and 8 repetition máximum (RM) with moment inertia = 0.10 m² from week 6-12.

Group Type EXPERIMENTAL

Exercises program for patellar tendinopathy

Intervention Type BEHAVIORAL

To compare the effectiveness of the inertial flywheel resistance program versus slow heavy resistance in patients with chronic patellar tendinopathy

Interventions

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Exercises program for patellar tendinopathy

To compare the effectiveness of the inertial flywheel resistance program versus slow heavy resistance in patients with chronic patellar tendinopathy

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Clinical diagnosis of patellar tendinopathy
* Symptoms \> 3 months
* Pain localized to the inferior pole of the patella
* Victorian Institute of Sport Assessment (VISA) score less than 80 points
* Palpation tenderness of the patellar tendon
* Abnormal tendon (hypoechoic) confirmed by ultrasonography.

Exclusion Criteria

* Previous knee surgery
* Confounding diagnosis to the knee joint
* Previous corticosteroids injections
* Arthritis or diabetes
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Universidad Nacional de Córdoba

OTHER

Sponsor Role lead

Responsible Party

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Diego Andres Ruffino

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Vilma Campana, Dr

Role: STUDY_DIRECTOR

Departments of Biomedical Physics - University of Cordoba Argentina

Locations

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Universidad Nacional de Cordoba

Córdoba, C, Argentina

Site Status

Universidad Nacional de Cordoba

Córdoba, , Argentina

Site Status

Countries

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Argentina

References

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Ruffino D, Malliaras P, Marchegiani S, Campana V. Inertial flywheel vs heavy slow resistance training among athletes with patellar tendinopathy: A randomised trial. Phys Ther Sport. 2021 Nov;52:30-37. doi: 10.1016/j.ptsp.2021.08.002. Epub 2021 Aug 4.

Reference Type DERIVED
PMID: 34384941 (View on PubMed)

Other Identifiers

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UCordoba

Identifier Type: -

Identifier Source: org_study_id

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