Complex sentence: Specific studies have found pedestrian walking speeds ranging from to for older individuals and from to for younger individuals; although a brisk walking speed can be around 6.5 km/h champion racewalkers can average more than over a distance of.
Split into simpler sentences: Specific studies have found pedestrian walking speeds ranging from to for older individuals and from to for younger individuals; a brisk walking speed can be around. Champion racewalkers can average more than over a distance of.