Environmental Concerns: Exam 2 Flashcards Preview

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Flashcards in Environmental Concerns: Exam 2 Deck (81)
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1

What are the 4 areas of concern for environmental stress?

-Hyperthermia
-Hypothermia
-Altitude
-Lightening storms

2

Hyperthermia

-condition where body temp is elevated
-caused a number of deaths over the years

3

What must an ATC be able to do concerning heat?

-understand heat/ humidity factors to manage and plan accordingly with coaching staff
-be able to recognize clinical signs/ symptoms of heat illness

4

Is heat stress preventable?

Yes

5

How can heat stress be avoided?

Use extreme caution when training in heat

6

What can increase risk of heat stress?

Underlying medical condition such as sickle cell trait

7

What other than hot weather can cause heat stress?

Dehydration and equipment

8

What 5 factors affect body temp?

-metabolic heat production
-conductive heat exchange
-convective heat exchange
-evaporative heat loss
-radiant heat exchange

9

Metabolic heat production

"Running" temp of the body

10

Conductive heat exchange

Physical contact with objects

11

Convective heat exchange

Circulation of medium (air/ water)

12

Evaporative heat loss

Sweat must evaporate to dissipate heat

13

Radiant heat exchange

Sun v shade

14

Evaporative heat loss key (3)

-evaporation of water takes heat with it
-when radiant heat> body temp, evaporation is key
-air must be relatively water free for evaporation to occur (65% impairs, 75% stops)

15

When should hydration begin?

24 hours prior

16

How can you monitor hydration?

Urine color

17

Mild dehydration

2% of body weight lost in fluid. This can cause problems

18

Is small amounts or large amounts of fluid better?

Small amounts at regular intervals prior to activity rather than large amount immediately before

19

Dehydration and concussions

Dehydration symptoms can mimic concussion symptoms so athlete should be removed from heat and monitored if in doubt

20

How can you monitor fluid loss?

Weight tracking

21

How much fluid does the body require?

2.5 L when engaged in minimal activity

22

How much water does an adult lose per hour?

1.5 L

23

What will trigger a thirst response?

2% drop in body weight

24

What is essential to replace fluid and electrolytes?

Unlimited access to fluids

25

Why are sports drinks more effective than water?

-flavoring increases desire to consume
-replaces fluids and electrolytes
-small amounts of sodium help in water retention

26

What is the optimal CHO level?

14g per 8 ounces of water

27

What is the most effective method of avoiding heat stress?

Acclimatization

28

Acclimatization

Graded intensity changes are recommended with progressive exposure over a 7-10 day period

29

How long does it take to get 80% acclimated?

5-6 days

30

What is regulated during the acclimation period?

Equipment and apparel and length and amount of practices