14. Which is an accepted and recommended formula for determining max heart rate?

Question

14. Which is an accepted and recommended formula for determining max heart rate? A. maxHR 208-(.7 x age) B. maxHR Resting HR+age C. max HR 230+age D. maxHR-50+ (2xage) 15. Which of the following would be least likely to improve cardiovascular fitness? A using an elliptical machine for 20 minutes, 3 days per week B. walking for 15 minutes, 2 days per week C. jogging for 20 minutes, 4 days per week D. hiking for 45 minutes, 3 days per week 16. Which arterial site for pulse counting is the most popular? A. radial B. temporal C carotid D. femoral 17. Which is the most accurate statement about the relationship between fitness and fatness? A. fitness is important only if you are overweight B. fitness doesn't improve health if you are overweight C. being overweight counteracts the benefits of fitness D. being fit counteracts the risks of being fat 18. A measure of the maximum amount of force that a muscle can exert one time is called A power. B. strength. C. progression. D. muscular endurance 19. Leverage is an important mechanical principle that influences strength because A. a person with long limbs has a disadvantage mechanically. B. the body uses a system of levers to produce movement C. it is possible to change the length of your limbs to increase strength. D. it causes the muscles to contract. 20. Which muscle fibers are resistant to fatigue because they rely on aerobic metabolism? A. type I B.type IIB C type IA D. intermediate

Explanation / Answer

Ans-14 ans-maxHR = 208 - (.7 x age)

Ans-15-walking for 15 minutes, 2 days per week

Aerobic activities that improve cardiovascular health include: Walking. Jogging or running. Cycling. Swimming Hiking etc.

Ans-16-carotid

carotid arteries take oxygenated blood from the heart to the brain.place index and middle fingers on neck to the side of your windpipe and count the pulse within 10 second.

Ans17-being fit counteracts the risks of being fat

Being fit and not being fat work independently to reduce risk factors.

Ans-18-strength

amount of weight that a group of muscles can lift one time is called a 1repetition maximum (1RM), which is a good indicator of force exerted . This is considered the best measure of strength.

Ans-19 the body uses a system of levers to produce movement.

Ans-20-type I

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