Across
- 1. Natural chemicals made by the body that help reduce pain and can contribute to feelings of well-being.
- 5. The ability to move a joint through its full range of motion.
- 6. Light activity before exercise that gradually increases heart rate, breathing, and muscle temperature to prepare the body for harder activity.
- 9. behaviors Waking activities done while sitting, reclining, or lying down that use very little energy.
- 14. fitness Fitness abilities that support movement and athletic performance: agility, balance, coordination, power, reaction time, and speed.
- 16. Planned, structured, repeated physical activity done to improve or maintain fitness.
- 18. exhaustion A heat-related illness caused by excessive loss of water and salt, usually through sweating, with symptoms such as weakness, dizziness, and nausea.
- 21. Describes activity that relies mainly on energy processes that do not require oxygen, usually during short, intense efforts.
- 27. fitness The ability of the heart, lungs, and blood vessels to supply oxygen to working muscles during sustained activity.
- 28. fitness Fitness components connected to health: cardiorespiratory endurance, muscular strength, muscular endurance, flexibility, and body composition.
- 29. heart rate A desired heart-rate range during exercise that matches the intended intensity, usually expressed as a percentage of maximum heart rate.
- 30. cramps Painful muscle spasms during or after activity in the heat, often associated with heavy sweating and loss of water and salt.
- 31. A brain injury caused by a hit or jolt that makes the head and brain move rapidly back and forth.
Down
- 2. A dangerously low body temperature, below 95°F (35°C), caused when the body loses heat faster than it produces it.
- 3. How hard a person’s body works during physical activity.
- 4. activity Any body movement produced by skeletal muscles that uses energy.
- 5. athlete triad Three related health problems: too little available energy for the body’s needs, menstrual disturbances, and low bone mineral density.
- 7. The ability to continue physical activity over time without becoming overly tired.
- 8. training Using different types of exercise to develop fitness and vary the demands on the body.
- 10. An injury in which the bones of a joint are forced out of their normal positions.
- 11. A crack or break in a bone.
- 12. fitness The ability to perform daily activities with energy and without excessive fatigue, with energy left for recreation and unexpected demands.
- 13. heart rate The highest number of times a person’s heart can beat in one minute during maximum physical effort.
- 15. A condition in which the body loses more water than it takes in, leaving too little for normal functioning.
- 17. The ability to change direction quickly while maintaining control and balance.
- 19. A life-threatening emergency in which the body cannot control its temperature, causing dangerous overheating and symptoms such as confusion or unconsciousness.
- 20. Describes activity that relies mainly on oxygen to release energy for sustained movement.
- 22. The absence of menstrual periods.
- 23. Activity Guidelines for Americans Federal, science-based recommendations explaining the types and amounts of physical activity people need for health benefits.
- 24. Injury caused by freezing of the skin and underlying tissues.
- 25. Light activity after exercise that gradually lowers heart rate and breathing.
- 26. Stretching or tearing of a ligament, the tissue connecting bone to bone at a joint.