Physical Education, Part 12

Question 1: Discuss rhythmic gymnastics.

Answer 1: In rhythmic gymnastics, participants develop routines in which they deftly manipulate one of five types of apparatus: balls, clubs, hoops, ribbons, or ropes. Performances in rhythmic gymnastics are made either individually or in five-person groups. In competitive rhythmic gymnastics, judges award points to the participants based on leaping ability, balance, pivot, flexibility, handling of the apparatus, and artistic merit. There is a bit of tumbling skill involved in advanced rhythmic gymnastics, although the main skills incorporated are hand-eye coordination and flexibility. Rhythmic gymnastics is considered to be an excellent way to develop body control, achieve good cardiovascular health, and improve flexibility.

There are lots of good resources about Physical Education that you can find available.

Question 2: Describe and discuss the behavior of the cardiovascular system during exercise.

Answer 2: Exercise stimulates the release of adrenaline and lactic acid into the bloodstream, increasing the heart rate. The blood pressure also increases, to ensure that enough blood is delivered to the brain. Generally, the distribution of blood changes during exercise: less blood is delivered to organs, and more is directed to the working muscles. In particular, less blood flows to the kidneys and intestines, which means that much less urine is produced during exercise. While a normal resting lung capacity is about 5 liters of air per minute, during vigorous exercise the lungs may be able to hold close to 200 liters of air every minute. Indeed, the lungs are able to process enough oxygen to accommodate any level of exercise; the maximum level of exertion is actually determined by the output of the heart.

Question 3: Describe the effects of exercise on the heart.

Answer 3: Exercise improves the ability of the heart to pump blood throughout the body, increasing the volume of blood distributed with each beat by 20 to 30. This increase in volume allows the heart to slow down so that it only beats between 40 and 60 times a minute. There is no change to the maximum heart rate, however; an individual’s maximum heart rate is determined at birth and decreases only with age. It is true that exercise increases the length of time one can exercise at a high percentage of maximum heart rate. As is well known, blood pressure is decreased by regular exercise, even during exercise itself. Finally, the overall cardiac output is improved by exercise; in other words, healthy muscles receive more blood.

Previous: Physical Education, Part 11 - Next: Physical Education, Part 13

Flashcard Secrets provides test preparation products for a variety of examinations - all trademarks are property of their respective trademark owners.

3827 Phelan #179

Beaumont, TX 77707