Answer:1. means with oxygen; in normal situations your muscles use energy (glucose) that requires the addition of oxygen (O2); the oxygen is captured in your lungs (respiratory) and transported to your muscles by your heart and blood vessels (circulatory); once combined with O2, the glucose fuels the muscle contractions and, thus, body movement
2. a moderate form of exercise that is sustained over an extended period of time, generally involving the large muscle groups and placing a demand on the heart and lungs to deliver oxygen to the muscles; aerobic exercises are most effective for developing cardiovascular fitness, for example, walking, jogging, cycling and swimming
3. (without oxygen) as your muscles work faster and harder, they require more energy and, thus, more oxygen; your lungs breathe deeper and your heart beats faster trying to keep up with the demand; when your muscles demand for energy surpasses your lungs' and heart's abilities to deliver oxygen, your muscles have to burn energy (glycogen) without O2, which is used up fairly quickly and produces more waste products, specifically lactic acid
4. a form of exercise that involves short, intense bursts of energy; anaerobic exercise can only be maintained for 1-2 minutes, slightly longer through specific anaerobic training. Anaerobic exercises are generally used to build muscle mass, increase muscular strength, speed and power, for example sprinting (running, cycling, swimming, etc), and bodybuilding
5. the components of physical fitness that are directly related to good health and wellness: body composition, cardiovascular fitness, flexibility, muscular endurance, and strength
6. the physical ability to perform a specific motor task or physical activity, for example: shooting a basketball, riding a bike, or surfing a wave; motor skills are learned and improved through practice
7. the components of physical fitness that are directly related to the performance of motor skills: agility, balance, coordination, power, speed and reaction time; these skill-related fitness components are inherent, not learned, and they are part of a person's genetic makeup
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