Rediff article: on Power Walk

Power Walk

Walking is the most important exercise since it burns fat, strengthens the heart and lungs, improves stamina, increases concentration levels and builds bone density, among other benefits.

A power walk will help you burn off excess fat and is a good warm-up for the exercises to follow. Thirty minutes is ideal, but if that's difficult to manage, split it up into two 15-minute power walks. The time of day for the walk is dependent on your schedule. Keep your pace brisk and non stop.

As for where to walk, you may consider your office compound or then on your way to work, simply get off a small distance away from the office and walk it up.