Lumbopelvic Control in Baseball Batting

November 7, 2023 updated by: Yi Liang Kuo, National Cheng-Kung University Hospital

Influence of Lumbopelvic Control on Batting Mechanics and Bat-swing Velocity in Baseball Players

Baseball batting is important to winning the games. Baseball batting is achieved by proximal-to-distal sequencing of body movements and controlled by the neuromuscular system. Poor lumbopelvic control could influence production and transfer of energy in the kinetic chain. This study aims to investigate the impact of lumbopelvic control in hitting mechanics and bat swing velocity in high school baseball players.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

44

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Taiwan
      • Tainan, Taiwan, 701
        • National Cheng Kung University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

17 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

College baseball batters in the area of Tainan City

Description

Inclusion Criteria:

  • Sport specialization in baseball batting
  • Active players on college baseball teams

Exclusion Criteria:

  • History of surgery in the lumbar area
  • Severe musculoskeletal or neurological symptoms that interfere with participation in competition, training and test

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Stable group
Participants display knee valgus less or equal to 15° at 45° knee flexion in the descending phase of the squat on both legs
Other: No intervention
No intervention / Compare the difference in batting mechanics and bat-swing velocity in baseball players with good and poor lumbopelvic control
Unstable group
Participants display knee valgus greater than 15° at 45° knee flexion in the descending phase of the squat on one leg or both legs
Other: No intervention
No intervention / Compare the difference in batting mechanics and bat-swing velocity in baseball players with good and poor lumbopelvic control

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Ratio of angular displacement of lumbar spine and hip joint
Time Frame: 1 week after enrolled
Angular displacement of lumbar spine divided by angular displacement of hip joint
1 week after enrolled
Bat-swing velocity
Time Frame: 1 week after enrolled
Maximal bat swing velocity during baseball batting
1 week after enrolled
Ratio of angular displacement of thoracic spine and lumbar spine
Time Frame: 1 week after enrolled
Angular displacement of thoracic spine divided by angular displacement of lumbar spine
1 week after enrolled
Timing of maximal angular velocity of hip joint
Time Frame: 1 week after enrolled
The time point where the hip joint reaches its maximal angular velocity over the batting phase
1 week after enrolled
Timing of maximal angular velocity of lumbar joint
Time Frame: 1 week after enrolled
The time point where the lumbar joint reaches its maximal angular velocity over the batting phase
1 week after enrolled
Timing of maximal angular velocity of thoracic joint
Time Frame: 1 week after enrolled
The time point where the thoracic joint reaches its maximal angular velocity over the batting phase
1 week after enrolled

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Cheng-Kung University Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 17, 2020

Primary Completion (Actual)

January 3, 2022

Study Completion (Actual)

January 3, 2022

Study Registration Dates

First Submitted

August 23, 2020

First Submitted That Met QC Criteria

September 9, 2020

First Posted (Actual)

September 16, 2020

Study Record Updates

Last Update Posted (Estimated)

November 9, 2023

Last Update Submitted That Met QC Criteria

November 7, 2023

Last Verified

November 1, 2023

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • A-ER-109-197

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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