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walking is not the most exciting form of exercise a person can take on for fitness. yet it is low impact and requires no fancy equipment. that makes walking a simple activity for those new to exercise. walking is less likely than other exercises to cause injury to leg tendons and muscles. all it requires is a good pair of sneakers—no cables, stylish outfits, or weights required. of course, a person could increase the benefit of a workout by adding weights or speed walking.
which of the following statements supports the main idea in this paragraph?
1) walking is boring.
2) walking has a low risk of injury.
3) walking requires sneakers in good condition.
4) walking is too easy for those who exercise regularly