Walking p. pr. & vb. n. : of Walk

Walking : a. & n. from Walk, v.

Example:
How much Walking will make a difference?

Taxonomy
walking, ground, walking tours, legs, speeds, modes of transportation, Google Books, kph, gait, volunteers, walks, human walking, Health benefits of walking, Ground pounders, local transport, free encyclopedia, walking speed, center of mass.

Defination from the web:
walking events, resulting in disqualification at the Olympic level. ... Walking also increases bone health, especially strengthening the hip bone, and lowering the more harmful bad low-density lipoprotein (LDL) ...