Explain why the greatest benefits to cardiorespiratory fitness come from sustained physical activities like running, walking and cycling.

The greatest benefits to cardiorespiratory fitness come from sustained physical activities like running, walking and cycling. This statement is true.

Further explanation:

The cardiorespiratory fitness is an ability of the cardiovascular system (lungs, vessels, and heart) to proficiently provide oxygenated blood to functioning muscles and the muscle which use oxygen. Aerobic exercise is a significant part of any fitness program. Aerobic exercise programs increase the consumption of oxygen and heart rate.  

Activities such as cycling, jogging, walking, running, swimming, aerobics, hiking, stair climbing, cross country skiing, rowing and dancing increase cardiovascular fitness. Walking, cycling and running are aerobic activities. They help in increasing the consumption of oxygen to the muscles and also increase the heart rate. Sports like basketball, soccer, tennis, and squash also improve cardiovascular fitness.

Athletes mainly use three exercise methods to get better their cardiovascular fitness:  

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Answer Details:

Grade: High School

Subject: Health

Chapter: Physical Fitness

Keywords:

Cardiorespiratory exercise, oxygen, intensity, aerobic exercise, fitness, heart rate, muscles, jogging, walking, cardiovascular, respiratory, tennis, squash, running, walking, swimming.

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.