Simple Strength Workout for Runners and Walkers

This is a simple 4-exercise workout for walkers and runners. I recommend doing a circuit where the four exercises are: 1. 10 of the squats; 2. 3 steps each leg forward, then 3 each leg backward of the walking lunges; 3. Up to 60 seconds for the plank; and 4. 5 reps of the bridge, holding for 5 seconds each rep.