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 3 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Week 3 Workout #1: Easy 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: Speed Interval Workout Warmup: 6 minutes of dynamic stretching and drills (high knees, butt kicks, skips, lateral shuffles). 2 x 2-minute smooth run with 60-second walk in between. Add 0.2mph to your speed every 30 seconds. Workout: Start at 1 percent incline. 8 x 90-second strong run with 70-second walk in between. (This should be 0.5 to 1.5mph faster than your interval speed on the hills.) Add 0.2mph to your speed every 2 reps. 5-minute easy run. Workout #3: Strength and Run Combo Warmup: Do a full-body strength-training workout to activate the hips and body. Workout: Start at 1 percent incline. 7-minute jog. Add 0.5mph to your speed. 6-minute run. Add 0.5mph to your speed. 6-minute run. 5-minute walk to recover. Previous Next Start Slideshow Fitness TipsWorkoutsRunningCardio WorkoutsTreadmill WorkoutsBeginner Workouts