Power walking, also referred to as speed walking, is an aerobic (有氧的) activity that can be done just about anywhere or anytime. An individual (个人) who participates in the activity travels at a pace that is faster than walking but slower than jogging.
A proper technique when power walking includes taking small but quick pace and landing on the heels (足跟), with toes aimed at a 45-degree angle (角度) from the ground. Speed is produced by flexibility, not long pace. With each step, the walker rolls his or her feet forward and thrusts (猛推) from the toes to start a new step. This thrust gives a walker more force and power. With each step, the walker keeps his or her arms bent at a 90-degree angle while keeping a closed fist and making a curved move from the waist to the chest. The walker repeats the move while allowing his or her arms to swing, which helps to keep a light pace and uses more calories.
The aerobic activity provides many benefits (好处) for walkers. Power walking helps tone and build up muscles and burn calories. It can also help to control an individual's weight and can enhance the immune system. The activity improves physical fitness, which may help lower the risk or injury; it also lowers stress levels, and can help provide a comfortable night's sleep. Walking can also improve the cardiovascular system.
Before beginning the aerobic activity, an individual should check with his or her doctor. A walker should also make sure he or she has comfortable fitting shoes before engaging in walking. Shoes that are light and flexible can prevent soreness and tingling in the feet and toes. A beginner will often walk up to 30 minutes, while a person more advanced in the technique can engage in the activity for up to an hour.
