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

NCT03862508 | Completed

• 1 other identifier: PLIO project
• Study Type: interventional
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Athletes

Keywords

Jump; Plyometrics; Training; Performance; Powerinstep; Non-randomized clinical trial

Outcome Measures

Primary Outcomes (1)

• Change from baseline jump height after intervenion and at month

  The height of the jump will be measured on the Countermovement Jump test. The evaluating physiotherapist will stand in front of the subject, who will start from an upright position with the arms on both hips, and will go to a position of flexion of lower members at 90º. Finally, we will ask the subject for a vertical jump on the pressure platform. The results of this test are measured in centimeters and the higher the score, the greater the vertical jump capacity.

  Screening visit, within the first seven days after treatment and after one month follow-up visit

Secondary Outcomes (2)

• Change from baseline impulse force after intervention and at month

  Screening visit, within the first seven days after treatment and after one month follow-up visit

• Change from baseline vertical jump after intervention and at month

  Screening visit, within the first seven days after treatment and after one month follow-up visit

Study Arms (2)

Experimental

EXPERIMENTAL

Five Plyometric exercises

Other: Plyometric exercises

Control

NO INTERVENTION

Subjects included in the control group will not receive any intervention

Interventions

Plyometric exercises OTHER

Jump Drop Jump, dropping the subject from a height of 30cm and then make a vertical jump. Long jumps asking the athletes to take momentum and make a leap forward trying to reach the greatest possible distance. Jump Countermovement jump unilaterally, alternating the lower extremities. Jumps 180º with the athletes maintaining a semi-squat position. Jump Countermovement jump repeatedly starting from an upright position and the upper extremities in both hips. All the exercises will be done through 8 repetitions per session during the first two weeks, increasing two repetitions every two weeks (until reaching 12 repetitions at the end of the intervention). For the realization of each one of the exercises, the ballasted weight will be used (Powerinstep® model).

Also known as: Plyometric training programme with Powerinstep

Experimental

Eligibility Criteria

• Age: 18 Years - 40 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

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

You may not qualify if:

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

Sponsors & Collaborators

• Investigación en Hemofilia y Fisioterapia: lead

Study Sites (1)

Universidad Europea de Madrid

Madrid, Comunity of Madrid, 28670, Spain

Location

MeSH Terms

Interventions

Plyometric Exercise

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Rubén Cuesta-Barriuso, PhD

  Universidad Europea de Madrid

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: NETWORK
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 27, 2019
• First Posted: March 5, 2019
• Study Start: March 4, 2019
• Primary Completion: March 15, 2019
• Study Completion: June 1, 2019
• Last Updated: January 27, 2020

Record last verified: 2020-01

Data Sharing

• IPD Sharing: Will not share

Locations

ES (1)