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Active, Not Recruiting

NCT Number: NCT04309188

Stroboscopic Vision Training in Softball

Enhanced sports performance, in our current world, is being pushed at the professional level and down to school-age children as well. Money is being spent on lessons and equipment to enhance performance. One new method to enhance performance is stroboscopic vision goggles. The glasses lenses flicker removing visual information for a brief moment. The claim is that they train connections between the eyes, brain, and body. We want to see if this product truly does enhance visual performance during a softball season for high school girls.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Age range

14 year–18 year

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Texas Tech University Health Sciences Center

Lubbock, Texas, 79430, United States

About this study

In today's sports world, every strategy to perform at the highest level is needed. Current literature is demonstrating enhanced sports performance using stroboscopic vision training.1,2,5 The objective of this randomized controlled trial is to measure the effect of a stroboscopic visual training in a high school softball season in comparison to controls. Athletes in the control group will go through normal practice drills for hitting and fielding. The stroboscopic training (experimental group) will use the strobe glasses during hitting and fielding drills two times a week in practice. The brand of strobe glasses is Senaptec Strobe. Athletes in both the experimental and control groups will have their vision assessed at the beginning of the season and end by The West Texas Vision Center. Measurements for vision will include developmental eye movement, vergence ranges, Randot stereopsis test, accommodative ranges, acuity, and stereo scores. On-field performance measurements will be collected for batting statistics including on-base percentage, batting average, slugging percentage, and hard-hit ball percentage in both the experimental and control groups. The current year batting statistics will be compared with the prior year statistics if enough at-bats occurred. In addition, to the vision and on-field hitting performance proprioception balance using the Balance Error Scoring System (BESS) will be measured at the beginning of the season and end for both groups. Our data will provide quantified information for coaches, athletes, and health care providers concerning the benefits of the strobe glasses warrant buying to enhance sports performance. Additionally, we wish to determine whether visual-motor and proprioception balance changes occur after the training.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 1) Age 14-18 years 2) females; 3) high school softball

Exclusion criteria

  • 1) Prior use of stroboscopic vision training; 2) History of seizures; 3) History of vestibular impairments

Treatment and study plan

Senaptec Strobe Glasses

Device

The glasses use liquid crystal technology that causes a flicker from clear to opaque to enhance vision.

Standard softball drills

Other

Control group, which will perform normal hitting and fielding drills without stroboscopic training

Primary outcomes

  1. Vergence ranges

    Time frame: 8 weeks

    Vergence ranges measured how many prism diopters the subject can turn their eyes in (base out) and how far they can relax them out (base in). This score is also a good measure of how much peripheral fusion a person has.

Secondary outcomes

  1. Developmental eye movement

    Time frame: 8 weeks

    Developmental eye movement will measure how fast the subject can track numbers vertically and horizontally.

  2. Randot stereopsis test

    Time frame: 8 weeks

    Randot stereopsis test will measures how many ARC seconds of stereo the subject has. This test measures the subject's magno and parvocellular stereo tracking their peripheral or central fusion.

  3. Accommodative ranges

    Time frame: 8 weeks

    Accommodative ranges will measure how many times the subject can clear an image looking through a plus and minus accommodation flipper in thirty seconds.

  4. Acuity

    Time frame: 8 weeks

    Acuity will measure the clarity of vision at a distance of twenty feet.

  5. Stereo Scores

    Time frame: 8 weeks

    Stereo Scores will measure how quickly the athlete recognizes depth perception

  6. Batting statistics

    Time frame: 8 weeks

    Batting statistics including on-base percentage, batting average, slugging percentage, hard-hit ball percentage will be provided by the coach at the end of the season for the current year and prior year. Subjects will need a minimum of 20 at-bats in a season for collection of these statistics.

  7. Balance Error Scoring System (BESS)

    Time frame: 8 weeks

    Balance Error Scoring System (BESS) measures the total number of postural errors committed in a 30-second trial standing on flat surface and foam pad. It provides a measure of balance and proprioceptive ability.

Sponsors and collaborators

Lead sponsor

Texas Tech University Health Sciences Center

Other

Registry information

Official study title

Effect of Stroboscopic Vision Training in a Softball Season: A Randomized Controlled Trial Pilot Study

Important dates

Study start
2021
Primary completion
2021
Study completion
2027
First posted
Mar 16, 2020
Registry last updated
Jun 29, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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