Did you know that speed walking can increase your caloric burn rate without the joint jarring effects of jogging? Without a doubt, walking is good exercise. But if you want an extra challenge, try speed walking. Simply put, speed walking, or power walking is walking very fast without running. Arms are swung in pace with the stride, and one foot is on the ground at all times. Your stride is slightly longer and considerably quicker than in a leisurely stroll.
Briskly walking one mile (brisk usually means 3.5 to 4 miles per hour) burns nearly as many calories as running a mile at a moderate pace, and confers similar fitness and health benefits. Even strolling or slow walking (about 2 miles per hour) confers some health benefits.
The number of calories burned during a speed-walking workout depends on such factors as your weight, the length of your workout, and how vigorously you swing your arms. Remember to pick up the pace for your health.