Answer:
Explanation:
Interval training works both the aerobic and the anaerobic system. During the high-intensity efforts, the anaerobic system uses the energy stored in the muscles (glycogen) for short bursts of activity. Anaerobic metabolism works without oxygen, but the by-product is lactic acid. As lactic acid builds, the athlete enters oxygen debt, and it is during the recovery phase that the heart and lungs work together to "pay back" this oxygen debt and break down the lactic acid. It is in this phase that the aerobic system is using oxygen to convert stored carbohydrates into energy.
It's thought that by performing high-intensity intervals that produce lactic acid during practice, the body adapts and burns lactic acid more efficiently during exercise. This means athletes can exercise at a higher intensity for a longer period of time before fatigue or pain slows them down.
Answer: Excessive loud noice.
Explanation:
Environmental stressors include weather, noise, crowdedness, and light exposure. So, your answer would be excessive loud noice.
Less than one-quarter (24%) of children 6 to 17 years of age participate in 60 minutes of physical activity every day.
According to the most current Youth Risk Behavior Surveillance System (YRBSS) study, just 23.2% of high school students in the United States engaged in physical activity for at least 60 minutes each day. The YRBSS is a twice-yearly survey of high school students' self-reported health habits that is conducted by the Centers for Disease Control and Prevention.
Overall, according to a CDC analysis, "the prevalence of behaviors that promote physical activity for health was low in 2019 and either fell or stayed the same during the preceding 10 years." Particularly, between 2011 and 2019, a considerable reduction was seen in the percentage of pupils achieving the criteria for physical exercise.
Here's another question with an answer similar to this about physical fitness of high school students: brainly.com/question/23839671
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The answer would be C coughing
