Plyometric Work Together With the Use of Ballast Weight in Lower Limbs in the Improvement of Performance in Jumpers (PLIO)

Investigación en Hemofilia y Fisioterapia

Status: Completed

Conditions: Athletes

Treatments: Other: Plyometric exercises

Study type: Interventional

Funder types: NETWORK

Identifiers

NCT03862508

PLIO project

Details and patient eligibility

About

Introduction. The high jump is a discipline that use the shortening-stretching cycle. Plyometric exersices emply an eccentric load followed by concentric contraction. Powerinstep is a tool training by means of weigthed weigth whose objective is improving performance in athletes.

Aim. Evaluate efficacy of plyometric training with Powerinstep® in lower limbs, in the performance improvement in professional height jumpers from 18 to 40 years old.

Study design. Non-randomized clinical trial, single bind, with follow-up period.

Methods. 20 athletes will be recruited, that will be randomized to the two study groups: experimental (they carry out a plyometric training programme with Powerinstep) and control (won't be made a intervention on the subjects included in this group). The intervention consists of 6 week, with 2 session for week of 15 minutes duration each. The dependent variables will be the height of the jump, the time of flight, the reaction speed and the impulse force, measures though a pressure platform (model T-PLATE), employing Countermovement Jump, Abalakov and Drop Jump tests. We will make a descriptive statistical analysis. The Shapiro-Wilk statistical test will be used to calculate normality. Trough t-student test of repeated measures and an ANOVA of repeated measures will be calculated the difference between distinct assessment (preintervention, postintervention and follow-up) and the effect intra and inter subject, respectively.

Expected results. We want to observe the changes in performance improvement in height jumpers.

Enrollment: 20 patients

Sex: Male

Ages: 18 to 40 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Height jumpers
• Age between 18 and 40 years
• Currently participate in the competitive field

Exclusion criteria

• Present medical diagnosis of musculoskeletal pathology
• Who have not had musculoskeletal injuries in the last month
• Not signed the informed consent document.

Trial design

Primary purpose: Prevention

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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20 participants in 2 patient groups

Experimental

Experimental group

Description:

Five Plyometric exercises

Treatment:

Other: Plyometric exercises

Control

No Intervention group

Description:

Subjects included in the control group will not receive any intervention