Clinical trial NCT03862508: Plyometric Work Together With the Use of Ballast Weight in Lower Limbs in the Improvement of Performance in Jumpers
Official title: Efficiency of Plyometric Work Together With the Use of Ballast Weight in Lower Limbs in the Improvement of Performance in Jumpers From 18 to 40 Years Old. Nonrandomized Pilot Study.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Athletes
Keywords: Jump
Plyometrics
Training
Performance
Powerinstep
Non-randomized clinical trial
Lead sponsor: Investigación en Hemofilia y Fisioterapia
Sponsor class: NETWORK
First posted: 2019-03-05
Enrollment: 20
Sex: MALE
Minimum age (years): 18
Maximum age (years): 40
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: NON_RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

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.


Eligibility criteria: 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.

Primary outcomes:
measure: Change from baseline jump height after intervenion and at month
timeFrame: Screening visit, within the first seven days after treatment and after one month follow-up visit
Secondary outcomes:
measure: Change from baseline impulse force after intervention and at month
timeFrame: Screening visit, within the first seven days after treatment and after one month follow-up visit
measure: Change from baseline vertical jump after intervention and at month
timeFrame: Screening visit, within the first seven days after treatment and after one month follow-up visit
Other outcomes:
Locations:
city: Madrid
country: Spain
facility: Universidad Europea de Madrid
state: Comunity Of Madrid
Study officials:
affiliation: Universidad Europea de Madrid
name: Rubén Cuesta-Barriuso, PhD
role: PRINCIPAL_INVESTIGATOR
References: