Video Submission Q1 — Unit test Answers

All of the following statements concerning drugs and supplements are true EXCEPT: A.Many drugs and supplements are ineffective and expensive.B.Many supplements and drugs are frequently used to improve performance and appearance.C.Supplements and drugs both undergo stringent government testing.D.Supplements and drugs can both cause unwanted side effects.

In regard to exercise, which of the following statements about safety consideration is correct?A.In hot weather, exercising between 10 a.m. and 4 p.m. is best. B.Exercising at 100% of your maximum heart rate is best.C.Exercising one hour before eating is best. D.Remaining well-hydrated while exercising is best.

High levels of muscular fitness can also lead to reduced risk for chronic diseases.

If you wanted to increase your muscular endurance, it would be important to participate in activities that __________. A. increase the size of the muscle cells and the amount of blood that is delivered to the muscle B. decrease the amount of fuel that the muscle can store and increase the time it takes for the muscle to contract C. increase the number of muscles and decrease the size of the muscle cells D. decrease the length of the muscle and increase the thickness of the muscle Please select the best answer from the choices provided.

One reason the skeletal system is important is because __________. A. without the skeletal system, an individual would not have enough calcium to live B. the skeletal system creates the connective tissue and tendons that allow the body to move C. the skeletal system is solely responsible for housing the body's immune system D. the skeletal system is responsible for controlling functions of the entire body Please select the best answer from the choices provided.

Dawn is trying to find out how much weight she can push across the room. She is really trying to find her __________.A.flexibilityB.muscular enduranceC.cardiovascular fitnessD.muscular strength

Two individuals start the same training program at the same time, but one is able to grow muscle faster and larger than the other. What is the least likely explanation for this?

Improvements in muscular strength will not affect muscular endurance.

Which of the following is an example of improved functioning as related to the benefits of muscular strength and endurance training? A. having stronger bones B. easier to do household chores C. lower blood pressure D. larger lung capacity Please select the best answer from the choices provided.

If an individual started running 10 miles three times a week, there would most likely be an __________. A. increase in flexibility B. increase in muscular strength C. increase in muscular endurance D. increase in weight Please select the best answer from the choices provided.

Slow-twitch muscle fibers have a high resistance to fatigue.

The overriding problem with both theories of muscle growth, hypertrophy and hyperplasia, is that __________. A. neither can be accepted as correct because muscles growth is difficult to study in humans B. neither one is theoretically possible C. neither has been studied by reputable scientists D. neither has been accepted by member of the fitness community Please select the best answer from the choices provided.

Which workout schedule would be BEST suited for a weight-lifting workout that builds both strength and endurance? A. lifting weights four days a week with 2 to 4 repetitions B. lifting weights every day with 8 to 10 repetitions C. lifting weights three days a week with 12 to 20 repetitions D. lifting weights three days a week with 8 to 12 repetitions Please select the best answer from the choices provided.

Which of the following activities is most likely to improve muscular endurance? A. high jumping B. long distance running C. sprinting D. throwing a fast ball Please select the best answer from the choices provided.

In this theory of muscle growth, muscle fibers are able to split and create new fibers. A. hypertrophy B. hyperplasia C. atrophy D. none of the above Please select the best answer from the choices provided.

An individual has sarcopenia. In order to prevent this condition from becoming any worse, what action should be taken? A. decrease the amount of time spent exercising each week B. participate in more activities like weight training C. cut back on the use of heavy weights D. increase supplements and eat a healthier diet Please select the best answer from the choices provided.

Muscles make up more than _____ of a person's body mass. A. 10% B. 25% C. 40% D. 75% Please select the best answer from the choices provided.

Jackie noticed an increase in appetite after she started weight training. Since she did not change her eating habits, her body fat began to drop. Why did this happen? A. Weight training slows the metabolism in order to allow muscles to grow and repair. This causes fat loss. B. Even though Jackie says she did not change her eating habits, she must have consumed fewer calories, causing her weight to drop. C. When Jackie is exercising she does not have time to eat. This, combined with the calories burned during exercise, must have been enough to cause her body fat to drop. D. As muscle mass increases, so does metabolism. A higher metabolism burns more fat. Please select the best answer from the choices provided.

High levels of cholesterol can first lead directly to __________.A.strokesB.arteriosclerosisC.heart attacksD.heart failure

Weight training has the biggest effect on __________. A. cardiac muscles B. smooth muscles C. involuntary muscles D. skeletal muscles Please select the best answer from the choices provided.