Environmental Conditions and safety

heat exhaustion

A milder form of heat-related illness marked by nausea, dizziness, and weakness; caused by the depletion of body fluids and electrolytes. - can cause nausea, heavy perspiration, pale skin, headache, dizziness, fatigue

hypothermia

A potentially deadly condition in which the body temperature becomes extremely low. - shivering, drowsiness, behavioral changes, weakness

heat stroke

A potentially life threatening condition caused by exposure to extreme heat; marked by headache, fever, and sometimes coma. - can cause high body temp. hot/dry skin, unconsciousness - stop sweating

discuss the importance of fluid balance while exercising.

While exercising, the body loses fluids through perspiration and respiration. The more rigorous the exercise, the more fluids are lost. It's important to replace these fluids both during and after the exercise.

Exercising with a friend or partner will enhance your safety. YES Acute hypothermia is caused by __________. A.rapid loss of body heat B.prolonged exposure to cold temperatures C.excessive drug/alcohol consumption D.cold weather

a

Electrolytes serve several purposes in the body, including __________. A.brain function and nerve sensitivity B.nerve and muscle function and fluid balance C.fluid balance and efficient circulation D.nerve sensitivity and efficient circulation

b

Hypothermia is a condition caused by exercising in extreme heat. NO __________ has occurred when your body can no longer regulate its temperature. A.Heat exhaustion B.Heat stroke C.Hypothermia D.none of the above

b

Dressing appropriately for exercise includes __________. A.wearing the same clothes for all exercises B.choosing dark colored clothing when exercising at night C.wearing sunscreen when exercising outside D.making sure you wear the best brand-name clothes

c

When lost fluid is not replaced adequately, __________ can result. A.heat stroke B.hypothermia C.dehydration D.emphysema

c

How can you use your personal choices to exercise more safely? A.not exercising in high-air pollution areas B.limiting exercise in hot climates to the early morning and evening C.using exercise equipment as it was designed to be used D.all of the above

d

When exercising in the heat, you should __________. A.wear tight-fitting clothes to absorb your sweat B.dress in layers C.choose dark colored clothing D.vary the intensity and duration of the exercise

d

weather

dress appropriatly - apply sunscreen -chap stick

fluid intake

drinking water - some fluids gained through eating

proper balance

hydrate before, during and after exercise - take in eletrolytes with drinks

pollution

listen to know if you can go outside -avoid pollution

Hypothermia is a condition caused by exercising in extreme heat.

no

It's always safer to exercise in a gym.

no

To remain healthy, daily fluid intake should be much less than fluid loss.

no

when to exercise

think about -temperature -lighting -traffic

human body is composed of 60% water - need to keep water levels up

true

Gordon is going for a run through the park, but it is cold outside. The low outside temperature could affect his personal safety.

yes

Heat stroke can lead to unconsciousness and death.

yes

The human body is composed of approximately 60% of water.

yes

extreme heat

- can lead to heat exhaustion or heat stroke - let body gradually adjust to heat -try to exercise in morning/night - go indoors - drink water -wear lightweight, light colored and loose clothes - vary intensity

electrolytes

- ex: ions of soduims, potassuim and calcium - important for nerve function, muscle function, and fluid balance -changes in electrolyte leveles lead to changes in fluid intake and loss

humidity

- leads to higher percevied temp -decreased rate of sweat evaporation= feel hotter

fluid inbalance

- not drinking enough water - lossing too much - or both - lead to dehydration

factors affecting fluid balance

- perspiration -urination -electolyte levels - water intake

how to exercise

- safety -play by rules - use equipment properly - choose proper envioment -with a partner - spotter with weights - run with a group with isolated/dark areas

fluid loss

- urination, perspiration, respiration (sweating and breathing)

safety depends on

-enviroment, and personal choice

extreme cold

-frostbite -hypothermia - allow body to gradually adjust -wear gloves/ head covering - wear good shoes - warm up - dress in layers

choosing where to exercise

-outdoors? weather -at home? enough room - at the gym? have you been outside today?

extreme temperatures

-pose safety risk -be aware of risks

Compare and contrast heat exhaustion and heat stroke.

Heat exhaustion and heat stroke are both caused by prolonged exposure to the Sun with very high temperatures. Heat exhaustion is typically less severe with symptoms of headache, nausea, pale skin, and fatigue. Heat stroke results when the body cannot regulate its body temperature any longer, and it is life threatening. Immediate medical assistance should be obtained if you suspect heat stroke.

Identify safety preparations that are common when exercising in extreme cold or extreme heat.

In both cases, the common preparation steps are allowing the body to acclimate gradually to the temperature and wearing appropriate clothing.

Discuss how personal choice can enhance your safety when exercising.

In general, you can choose when, where, and how to exercise. Each of these choices can either positively or negatively affect your safety during physical activity.

Identify the processes by which the human body both gains and loses fluids.

The cycle of fluid intake and loss continues on a daily basis. Fluid intake is accomplished by drinking fluids and eating foods. Fluid losses occur through urination, perspiration, and respiration.

frostbite

The destruction of body tissue due to exposure to extreme cold. -red, white, yellowish/gray skin, numbness, blisters

Natalee wants to go for a run outside, but it is the middle of winter and it is very cold. What kind of clothing should she choose to prevent possible sickness?

When exercising in the extreme cold, it is very important the wear long pants, long sleeve shirts, and a head covering.