Efficacy of Flywheel Inertial Resistance Training in the Architecture and Function of the Hamstring

Universidad Nacional de Córdoba

Status: Completed

Conditions: Hamstring Injury

Treatments: Behavioral: Exercises program for hamstring architecture and function

Study type: Interventional

Funder types: Other

Identifiers

NCT04050813

HSMI MSampietro Tesis

Details and patient eligibility

About

Investigate the efficacy of the inercial Flywheel training protocol in modifying the architecture and function of the hamstrings in patients with a history of structural muscle injury vs conventional training.

The researchers hypothesize that inercial Flywheel training protocol will be a useful strategy in the modification of the architecture and function of the hamstring in patients with a history of indirect structural muscle injury and decrease the recurrence.

Full description

Randomized controlled intervention study

Enrollment: 24 patients

Sex: Male

Ages: 18 to 50 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adults with history of structural muscle injuries type 3 of the Munich Consensus classification for muscular injuries, confirmed by imaging diagnosis no more than 2 years ago.
• The patient must have performed conventional medical and physiotherapy treatment
• Have Returned to their usual sporting activity
• With good mental health.

Exclusion criteria

• Suffer from a systemic pathology that could alter the healing biology of the muscle.
• Present other lesions in the muscular group of extrinsic characteristic or not encompassed within type 3 structural lesions such as, for example, proximal or distal insertion tendinopathy, use of semitendinous as anterior cruciate ligament graft.
• Prior knee or hip surgery.
• Having been infiltrated with platelet rich plasma in the posterior thigth region in the previus 3 months before startin the study

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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24 participants in 2 patient groups

Control

Experimental group

Description:

The program is performed 2 times per week using resistance equipment in a physiotherapy clinic. Each session consists of on 2-legged loaded exercises for hamstring, quadriceps, gluteus maximun and core. 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 4 exercises. The number of repetitions decreases, and load gradually increases, every week. The repetitions and loads are as follows: 3 set of 12-repetition maximum (12RM), in week 1 and 2; 3 set of 10 RM, in week 3 and 4; 4 set of 10RM, in weeks 5 and 6; and 4 set of 8RM, in weeks 7 to 8.

Treatment:

Behavioral: Exercises program for hamstring architecture and function

Intervention

Experimental group

Description:

Experimental: Inertial flywheel resistance training The program is performed 2 times per week using resistance equipment in a physiotherapy clinical. 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 16 repetition maximum (RM) with moment inertia 0.05 m² from week 1-2, 24 repetition maximum (RM) with moment inertia = 0.10 m² from week 3 to 4. 32 repetition maximum (RM) with moment inertia = 0.10 m² from week 5 to 6 and 32 repetition maximum (RM) with moment inertia = 0.13 m² in a flywheel hamstring curl devise.

Treatment:

Behavioral: Exercises program for hamstring architecture and function