1. Content Vocabulary shin splints stress fractures tennis elbow
dehydration
heat exhaustion
heat stroke

2. Shin splints are caused by improper form, failure to stretch, or inappropriate footwear.
Damage to the muscles and connective tissues of the lower front leg from stress 2

3. Stress fractures are caused by repetitive stress of the foot hitting the ground.
Bone damage from repeated physical force that strains the place where ligament is attached to bone 3

4. Tennis elbow can be attributed to using poor form in playing tennis or other activities using the arms.
tennis elbow
A painful condition of the arm and joint 4

5. Injury Prevention
The most important preventive measures are to follow proper form; stop working if you feel pain; and take precautions against dehydration, heat exhaustion, and heat stroke. 5

6. Some tips to preventing injury include:
Injury Prevention
Some tips to preventing injury include:
Be consistent in your fitness program.
Check the weather and dress accordingly.
Stop if you feel pain. 6

7. Injury Prevention Dehydration
Muscles heat up during physical activity because they are burning fuel.
Be alert to the dangers of overheating and dehydration.
dehydration
Loss of water 7

8. Dehydration Injury Prevention
Muscles heat up during physical activity because they are burning fuel.
Blood flows through the muscles and carries heat to the skin.
The surrounding air and evaporation of sweat carries heat away from the body. 8

9. Injury Prevention
Dehydration
On humid days, the sweat will not evaporate and heat builds.
Heavy sweating can be dangerous and even fatal because severe fluid and electrolyte loss causes cells to stop functioning.
Muscle weakness and unusual fatigue on a hot day may mean you need more fluids. 9

10. Dangers of Overheating
Injury Prevention
Dangers of Overheating
The symptoms of heat exhaustion are:
Headaches
Nausea
Chest pains
Diarrhea
heat exhaustion
A serious stage of overheating which can lead to heat stroke 10

11. Dangers of Overheating
Injury Prevention
Dangers of Overheating
The symptoms of heat stroke are:
Extreme fatigue
Intense dizziness
Loss of consciousness
Confusion
heat stroke
A life-threatening condition that results from a buildup of body heat 11

12. Dangers of Overheating
Injury Prevention
Dangers of Overheating
Early stages of overheating include swelling of the hands and feet or cramps in the legs or other muscles.
Preventive steps to avoiding heat exhaustion and heat stroke include:
Drink enough fluid before and during activity.
Wear lightweight clothing. 12

13. Dangers of Overheating
Injury Prevention
Dangers of Overheating
If you notice symptoms, stop and seek a cool, shady place. Rest and drink water. 13

14. Section Review: Reviewing the Vocabulary
How are dehydration and heat exhaustion related?
heat exhaustion
A serious stage of overheating which can lead to heat stroke
dehydration
Loss of water

15. Section Review: Reviewing the Vocabulary
__________ involve damage to the muscles and connective tissues of the lower front leg due to stress.
shin splints
Damage to the muscles and connective tissues of the lower front leg from stress