Motion Capture: Baseball Swing

The Methodist Hospital Research Institute16 enrolled

Overview

The aim of this study will be to assess kinetic and kinematic data during different phases of baseball hitting progressions commonly employed in the rehabilitation setting.

Study participants will undergo consent and history process. Subjects must meet inclusion and exclusion criteria prior to consent. Once consent is obtained, each subject will undergo instruction and training expectations of each swing phase. Once an adequate determination of proficiency has been met, each subject will undergo EMG and MOTUS sleeve placement on each upper extremity: * Forearm flexors * Forearm extensors * Medial epicondyle * Lateral epicondyle * Posterior rotator cuff musculature Once participants have undergone appropriate calibration processes, they will perform listed swing progressions in a randomized order: A. Dry swings - reduced weight (wiffleball) bat - 5 swings light intensity (25-50% effort), 5 swings moderate intensity (50-75% effort), 5 swings high intensity (75-100% effort) B. Dry swings - normal weight bat - 5 swings light intensity (25-50% effort), 5 swings moderate intensity (50-75% effort), 5 swings high intensity (75-100% effort) C. Tee hitting - normal weight bat - middle strike zone level - 5 swings light intensity (25-50% effort), 5 swings moderate intensity (50-75% effort), 5 swings high intensity (75-100% effort) D. Soft toss - underhand toss from assistant - middle strike zone placement - 5 swings light intensity (25-50% effort), 5 swings moderate intensity (50-75% effort), 5 swings high intensity (75-100% effort) E. Simulated hitting - pitching machine - randomized strike zone placement - 5 swings light intensity (25-50% effort), 5 swings moderate intensity (50-75% effort), 5 swings high intensity (75-100% effort)

Study Type

OBSERVATIONAL

Enrollment

Conditions

Elbow Force

Interventions

Motion capture participantBEHAVIORAL

Once participants have undergone appropriate calibration processes, they will perform listed swing progressions: 1. 15 dry swings with a wiffle bat at low, medium and high effort 2. 15 dry swings with a weighted bat at low, medium and high effort 3. 15 swings off of a tee at low, medium and high effort 4. 15 swings at an underhand toss at low, medium and high effort 5. 15 swings from a pitching machine at low, medium and high effort

Eligibility

Sex: MALEMin age: 16 YearsMax age: 40 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Participants must be healthy volunteers who accept all provisions of the study and agree to complete the program in its entirety. Participants should have their own bat and relative experience of at least 2 years of hitting a baseball. Ages accepted will be 16-40. Exclusion Criteria: 1. Previous history of upper extremity injury 2. Current painful dysfunction resulting in exercise or participation limitation 3. Any health-related exercise limitation as ordered by physician 4. Ages outside of 16-40 5. Inability to access clinic and equipment 6. Inexperience with baseball hitting or inability to follow instructions from study staff.

Locations (1)

Houston Methodist Hospital

Houston, Texas, United States

Outcomes

Primary Outcomes

Force on the elbow

Medial force (Newtons) across the elbow, normalized to the subject's body mass (kg), was calculated (N/kg).

Time frame: January 21 - 27, 2020

Data from ClinicalTrials.gov

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