lifestyle walking: A casual walking technique that is low to moderate intensity and relatively slow paced. Most lifestyle walkers walk an average of 2.5 to 3.5 miles per hour, which means that they walk about 1 mile every 17 to 24 minutes.

low-impact aerobics: A traditional dance-inspired routine in which you always have one foot on the floor — you don’t do any jumping or hopping. High/low combines the two types of routines.