Clinical trial NCT04286048: Weight Implements to Improve Throwing Speed and Shoulder Mobility in Baseball Pitchers
Official title: Efficacy of a Physiotherapy Intervention by Means of Weight Implements in the Improvement of Throwing Speed and Shoulder Mobility in Baseball Pitchers. A Randomized Pilot Study.
Study type: INTERVENTIONAL
Overall status: WITHDRAWN
Phase: NA
Conditions: Baseball Pitcher
Keywords: Baseball
Pitchers
Weight implements
Speed of pitches
Range of motion
Lead sponsor: Investigación en Hemofilia y Fisioterapia
Sponsor class: NETWORK
First posted: 2020-02-26
Enrollment: 0
Sex: MALE
Minimum age (years): 18
Maximum age (years): 40
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: Increasing the speed of pitches is key in baseball performance. The interventions by means of the implement of weights are used to improve the strength and to strengthen the muscles of the shoulder.

The objective of the study is to assess the effectiveness of an exercise protocol with weight implements in increasing the speed of throws and shoulder mobility in pitchers aged 18 to 40 years.

Randomized pilot study. 12 pitchers will be randomized to the study groups: experimental (intervention with launches with weight implement) and control (without any intervention). The intervention will last 4 weeks, with 2 weekly sessions of 15 minutes each. The study variables will be the range of shoulder movement (goniometry) and the speed of the throws (speed radar). A descriptive statistical analysis will be performed calculating median and interquartile range. With the Shapiro-Wills test, the sample distribution will be calculated. If there is homogeneity, with the t-student test the changes will be calculated after the intervention in both groups. The intra and intersubject effect will be calculated with the ANOVA of repeated measures. The effect size will be obtained with Cohen's mean difference formula.

It is expected to see improvement in the speed of the throws and in the range of shoulder movement.


Eligibility criteria: Inclusion Criteria:

* Male baseball pitchers
* With an age range of 18 to 40 years
* With more than three years of sports practice as a pitcher
* That currently practice in regional or professional competitions

Exclusion Criteria:

* Subjects who have undergone some surgery on the dominance arm with which they launch in the last 12 months
* Who are receiving a specific shoulder mobility intervention
* Have not signed the informed consent document

Primary outcomes:
measure: Change from baseline internal shoulder rotation after treatment and at month
timeFrame: Screening visit, within the first seven days after treatment and after one month follow-up visit
measure: Change from baseline external shoulder rotation after treatment 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 throwing speed after treatment 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:
References: