Comparing Risk of Heat Illness Based on Peak Core Temps During Preseason Football Camp Across 3 Different Age Levels

Using Peak Core Temperature in Hot Preseason American Football Practice to Compare and Contrast Risk of Heat Illness at High School, College, and Professional Levels.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01954537

Enrollment

Registered

2013-10-01

Start date

2013-07-31

Completion date

2013-08-31

Last updated

2013-10-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Exertional Heat Illness, Hydration Status

Keywords

Exertional heat illness, Hydration Status, Preseason football, heat stroke

Brief summary

To collect field data in professional, collegiate, and high school football players to determine how they respond physiologically to the rigors of preseason training environment. Investigators will compare core temperature, hydration status, practice guidelines regarding rest and hydration, and baseline knowledge of heat illness and hydration among the three levels. The hypothesis is higher peak temperatures will be observed in the younger less experienced football players.

Detailed description

Observations will occur over a 4-5 day period at the start of pre-season training camp. Researchers will meet with the high school volunteers and their parents to discuss the study and obtain informed consent prior to participating. Participants will swallow the HQInc CorTemp pill at least three hours (or late the night before) before practice. Temperature readings will be scanned every 15-30 minutes throughout practice. Pre and post practice weights will be recorded as well as urine specific gravity to help assess hydration status. Participants will also fill out a short 1 page questionnaire regarding their prior heat acclimatization, sleep habits, and baseline knowledge of hydration and heat illness. Protocol will be the same at all three age/competition levels.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

MALE

Age

14 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Football player on one of the teams from the pre-selected teams. Male.

Exclusion criteria

based on being able to swallow HQInc CorTemp Pill 1. Any athlete weighing less than eighty (80) pounds. 2. Any athlete with any known or suspected diseases of the gastrointestinal tract. 3. Any athlete with impairment of the gag reflex. 4. Any athlete with previous gastrointestinal surgery. 5. Any athlete with history of problems with their esophagus. 6. Any athlete who might undergo an MRI scan before the temperature sensor has been eliminated from the body. 7. Any athlete with problems moving food through their gastrointestinal tract. 8. Any athlete having a cardiac pacemaker or other implanted electro medical device.

Design outcomes

Primary

Measure	Time frame	Description
Peak core body temperature	The first 3-4 days of preseason football practice for each cohort.	Measured via HQInc ingestible core thermometer throughout practices.

Secondary

Measure	Time frame	Description
Hydration status before and after preseason football practice	Over first 3-4 days of each cohort's preseason camp.	Measured via urine specific gravity and body weights before and after practice.
Baseline knowledge of hydration status and heat illness in football	Up to August 30th, 2013	Athletes will be administered a 14 question survey covering various topics with regards to practice regulation, heat illness, and hydration.

Outcome results