Intermittent Cooling During Baseball Games on Hitting and Defense Performance

NCT05068804 | Completed

• 1 other identifier: 18-076-A
• Study Type: interventional
• Target: 10
• Locations: 1 country
• Sites: 1

Brief Summary

This study adopted a practical approach in intermittent cooling on forehead and neck during an intra-squad baseball game. Exit velocity of batted balls was used as an indicator for hitting performance and a baseball-specific reactive agility test to evaluate the cognitive performance in defense.

Conditions

Decline, Cognitive

Keywords

baseball; cognitive; cooling

Outcome Measures

Primary Outcomes (12)

• rectal temperature

  baseline

• change in rectal temperature

  5 hours after the baseline

• forehead skin temperature

  baseline

• change in forehead skin temperature

  measured after each inning in an 2-hour 7-inning intra-squad baseball game

  2 hours after the baseline

• tympanic temperature

  baseline

• change in tympanic temperature

  measured after each inning in an 2-hour 7-inning intra-squad baseball game

  2 hours after the baseline

• exit velocity of batted balls

  baseline

• change in exit velocity of batted balls

  3 hours after baseline

• reactive agility in defense

  The reaction time, the time from bat-ball contact to the participant's first definitive movement in the intended direction

  baseline

• change in reactive agility in defense

  The reaction time, the time from bat-ball contact to the participant's first definitive movement in the intended direction

  3 hours after baseline

• swing power

  power of bat swings

  baseline

• change in swing power

  power of bat swings

  3 hours after baseline

Secondary Outcomes (8)

• ratings of perceived exertion

  baseline

• change in ratings of perceived exertion

  2 hours after baseline

• thermal sensation

  baseline

• change in thermal sensation

  2 hours after baseline

• Go/NoGo tasks

  baseline

Study Arms (2)

cooling

EXPERIMENTAL

The participants in the cooling trial put cold towels on their forehead and neck for 3 min in the shaded dugout during their offensive half innings when they were not scheduled to hit or on base. Each participant received the cooling intervention 3 to 4 times in each game. After each use, the towels were kept in a cooler that contained water mixed with ice and salt to keep the temperature at approximately 0℃.

Procedure: Cooling

Control

PLACEBO COMPARATOR

The participants in the control trial sat in the shaded dugout without any cooling intervention.

Other: control

Interventions

Cooling PROCEDURE

The participants in the cooling trial put cold towels on their forehead and neck for 3 min in the shaded dugout during their offensive half innings when they were not scheduled to hit or on base. Each participant received the cooling intervention 3 to 4 times in each game. After each use, the towels were kept in a cooler that contained water mixed with ice and salt to keep the temperature at approximately 0℃.

cooling

control OTHER

The participants in the control trial sat in the shaded dugout without any cooling intervention.

Control

Eligibility Criteria

• Age: 20 Years - 23 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• baseball players from National Taiwan University of Sport, Taiwan
• at least 6 years of experience in baseball training
• have competed nationally.

You may not qualify if:

• having cardiovascular or other known chronic diseases
• taking any medication in the preceding 2 months
• having musculoskeletal injuries in the preceding 2 months.

Sponsors & Collaborators

• National Taiwan Sport University: lead
• Ministry of Science and Technology, Taiwan: collaborator

Study Sites (1)

National Taiwan University of Sport

Taichung, 404, Taiwan

Location

MeSH Terms

Conditions

Cognitive Dysfunction

Interventions

Cool-Down Exercise

Condition Hierarchy (Ancestors)

Cognition Disorders; Neurocognitive Disorders; Mental Disorders

Intervention Hierarchy (Ancestors)

Post-Exercise Recovery Techniques; Physical Therapy Modalities; Therapeutics; Rehabilitation; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Chen-Kang Chang

  National Taiwan University of Sport

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: September 6, 2021
• First Posted: October 6, 2021
• Study Start: July 15, 2020
• Primary Completion: September 10, 2020
• Study Completion: September 10, 2020
• Last Updated: October 6, 2021

Record last verified: 2021-09

Data Sharing

• IPD Sharing: Will not share

Locations

TW (1)