Popsugar Fitness Fitness Tips 5K Treadmill Training Plan Beginner Treadmill Plan: Here's How to Build Up to a 5K in 8 Weeks September 5, 2018 by Nicole Yi View On One Page Photo 8 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 Week 8 Workout #1: Lighter Endurance Run Warmup: 6 minutes of dynamic stretching and drills (high knees, butt kicks, skips, lateral shuffles). Workout: Start at 1 percent incline. 20- to 25-minute light run. Increase to 3.5 percent incline. 4 x 30-second strong run. Workout #2: Easy Interval Workout Warmup: 6 minutes of dynamic stretching and drills (high knees, butt kicks, skips, lateral shuffles). Start on 2 percent incline. 4 x 30-second strong run with 60-second walk in between. Workout: Start at 1 percent incline. 8 x 1-minute run with 60-second walk in between. 5-minute easy run. Workout #3: 5K! Previous Next Start Slideshow Fitness TipsWorkoutsRunningCardio WorkoutsTreadmill WorkoutsBeginner Workouts