Chapter 12 Vocab

• sprains


  injuries to the ligaments around a joint
• strains

  overstretching and tearing a muscle
• muscle cramps


  sudden and sometimes painful contractions of the muscles
• heatstroke


  a dangerous condition in which the body loses its ability to cool itself through perspiration
• heat exhaustion


  a form of physical stress on the body caused by overheating
• overexertion

  overworking the body
• hypothermia


  Dangerously low body temperature, occurs as a result of exposure to extreme cold
• frostbite


  damage to the skin and tissues caused by extreme cold
• resting heart rate


  the number of times your heart beats per minute when you are not active
• cool-down


  low-level activity that prepares your body to return to a resting state
• workout


  the part of an exercise session when you are exercising at your highest peak
• warm-ups


  gentle cardiovascular activity that prepares the muscles for work
• progression


  Gradually increasing the demands on your body
• overload


  Exercising at a level that's beyond your regular daily activities
• specificity


  Choosing the right types of activities to improve a given element of fitness
• anaerobic exercise


  intense short bursts of activity in which the muscles work so hard that they produce energy without using oxygen
• aerobic exercise


  rhythmic activities that use large muscle groups for an extended period of time
• muscular endurance


  the ability of your muscles to perform physical tasks over a period of time without tiring
• flexibility


  The ability to move your body parts through their full range of motion
• Muscular Strength


  The amount of force a muscle can exert
• cardiorespiratory endurance


  the ability of your heart, lungs, and blood vessels to send fuel and oxygen to your tissues during long periods of moderate to vigorous activity
• sedentary


  involving little physical activity
• exercise


  purposeful physical activity that is planned, structured, and repetitive, and that improves or maintains physical fitness
• physical fitness


  the ability to carry out daily tasks easily and have enough reserve energy to respond to unexpected demands
• physical activity


  any form of movement that causes your body to use energy