好心人 翻一下好麻?

拜託一下 這是報告 我有自己翻過 可是怪怪的 想請高手翻一下 謝謝 EXERCISE AND PHYSICAL FITNESS The human body was designed to be active and functions more efficiently when it is active. The basic problem is that today’s lifestyle requires very little activity to accomplish the everyday tasks that we perform . This is discussed... show more 拜託一下 這是報告
我有自己翻過 可是怪怪的

想請高手翻一下 謝謝

EXERCISE AND PHYSICAL FITNESS
The human body was designed to be active and functions more efficiently when it is
active. The basic problem is that today’s lifestyle requires very little activity to accomplish the everyday tasks that we perform . This is discussed in Chapter 1. It is very important to remember that you must exercise regularly for your body to function efficiently . This principle applies to each of the physical fitness component.
When you exercise , you force your body to work at a level slightly higher than what it is accustomed to working at because you are placing additional stress on the body. Over time , if the exercise is performed regularly , your body will adapt to the increased workload and will therefore function more efficiently . The case study on the following page demonstrates this point.

Important exercise principles
There are three principles that you must apply when designing any exercise program.
These are as follows : Overload . Overload involves subjecting the body to a task slightly beyond its normal level so that sufficient stress is placed on the body to stimulate the desired response.

Flexibility : The range of motion that is possible a joint.
Strength : The amount of force a muscle or muscle group can exert with a single contraction.
Muscular endurance : The ability of a muscle or muscle group to sustain a contraction or to repeat contractions continuously.
Body composition : The relative proportion of fat weight to lean body weight in the body.
Lean body weight : The total amount of body weight that is not attributable to fat ; this includes muscle , ligaments , tendons , bones , and fluids.
Percentage of body fat : The percentage of your total body weight that is attributable to fat.
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