Jim Clover, MED, ATC, PTACoordinator SPORT

Author “Sports Medicine Essentials”

Heat the Certified Athletic Trainer’s

PerspectiveHi

I’m Dr. Feder

www.ropsports.com

www.sportclinic.md

Not to Kill anyoneTo provide a healthy Environment for the

AthletesTo get the best performance out of the

athlete

SecondaryReasonable costWith in the limitations of the staff (Coach’s,

Athletic Trainer, students , etc.)With the resources available

The Quest

Changes in blood flow

0

2

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14

cool hot

bloo

d flo

w (L

/min

)skincoremusclesorgans

Temperature RegulationThe hypothalamus is a small organelle

within the brain which adjusts bodily functions through hormones which:-Increase heart rate-Begin the sweating mechanism-Increase blood flow to the skin surface

One Problem

The Black Helmet / Uniform

Personal Safeguards, cont’d% weight

lossfluid loss

time* effect & symptoms (* timing may vary based on intensity of work

and heat/humidity)

1% 0.75 L 1 hr unnoticed (at 1.5% weight loss you are considered dehydrated)

2% 1.5 L 2-3 hrs loss of endurance, start to feel thirsty, feel hot, uncomfortable

3% 2.25 L 3-4 hrs loss of strength, loss of energy, moderate discomfort

4% 3 L 4-5 hrs cramps, headaches, extreme discomfort

5-6% 3.5-4 L 5-6 hrs heat exhaustion, nausea, faint

7+% 5+ L 7+ hrs heat stroke, collapse, unconsciousness

This allow athletes to recognize water deficits which require consumption of fluid -2 to -3% of body weight, reduction of

training duration/intensity -4 to -6%, or consultation with an

experienced physician in excess of -7% out till cleared

Consistent daily monitoring of body weight

How Much Water to BringCalculate Sweat Loss

via Weight ChartsWeigh in before

practice and out after in the same dress “shorts”

ProblemsTwo a Day – Three a

day (needs to stop)Both Male and

Female (playing same sports)

What do they do in-between Practice

Not having a ATC on staff

Not knowing the sweat rate of each of your athletes

How to dress for a Hot Day

Turf vs Grass

All Athletes are not built the same

How much is enough?More than you want just to satisfy your

thirstSources of water are:

1. Fluids - 1 cup or 8 oz = 240 mL every 20 min

2. Foods - fruit & veggies are 90% water

Add up the number of athletes, number of cooler (size of cooler) and figure about how much should be taken out and consumed

Bring their own

What to drink & EatElectrolyte drinks (e.g. Gatorade) are

usually not needed for typical North American diet (can be used for first aid).

Stay away from caffeinated, carbonated, diet drinks, and alcohol as they take water out of your body.

Water is the best; juices and/or no caffeine sport drinks are also good (juices contain energy restoring glucose).

Eat 4 meals a day

Things to check

Look for typical heat strain symptoms; feeling over-heated, fatigue, headache, nausea, weakness, dark concentrated urine, etc.

Sweat that drips off your body no longer allows for cooling by evaporation; thus, unless there’s another medical reason for it, this is a sign that your body is heating up

Let the athlete change t-shirts.

Providing the H2O

How & What To Provide

Water Access

Different Ideas

Control methods

-Drinking adequate amounts of fluids

-Protective clothing (light colors reflect heat)

-Protective equipment (vests, fans)

-More?

TMS Temperatur Management System

Sideline Cooling Fans

What else are they doing?The commissioner

banned players with minor-league contracts from taking ephedra in the wake of Bechler‘s death

Administration Wants a numberTemperature

100 -106 degrees (Based on what?)

Heat Index (does it work everywhere?)

There is a number

www.hqinc.net

The Core Temp Ingestible Core Body Temperature Sensor was developed in the late 1980s by HQ Inc., of Palmetto, Florida

Costs around $30 each The pill relies on a temperature-sensitive quartz crystal temperatures ranging from 60 °C to 150 °C.

The History of THE PILL

Is This A Special Sports Pill?NO!

Sports physiologyFirefightingResearch &

medicineAgriculture

Occupational safetyFood Production &

SafetyMilitaryIndustry

Upon swallowing, the vitamin-size pill acts as an internal thermometer, providing continuous readings of a player's body temperature, which can be picked up by a sensor placed against the low back.

Pills are ingested a couple of hours before the start of practice, allowing the capsules time to reach the small intestine, where core body temperature readings accurate to within 0.1 °C can be taken.

The capsule remains in the body for only 24 to 36 hours before it is eliminated.

The Process

The ScienceTemperature readings

are transmitted wirelessly to a handheld data recorder.

The receiver is held to the low back, and the handheld device's antenna retrieves the original temperature data.

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0:00 0:00 0:15 0:23 0:31 0:39 0:45 0:53 1:00 1:10 1:21 1:32 1:42 1:58 2:19

Time Elapsed

Temp

eratu

re

PMAM

Core Temp Over Timea.m. vs. p.m.

Heat MonitoringAllows for real-

time on-site monitoring

Provides absolute vs. relative data immediately

Temperature patch reflects internal (core) body temperature

SportsTemp Thermostrip

www.sportstemp.com$1.50 each

Heat acclimatization is specific to the stress imposed on the human body. For example, passive exposure to heat induces some responses, notably an improved ability to dissipate heat.

Complete heat acclimatization requires up to 14 days, but the systems of the body adapt to heat exposure at varying rates.

Acclimatization

The early adaptations (initial 1-5 days) involve an improved control of cardiovascular function, including expanded plasma volume, reduced heart rate, and autonomic nervous system which redirects cardiac output to skin capillary beds and active muscle

Excess dietary water and electrolytes do not speed the process of heat acclimatization.

Acclimatization

We do it for the kids