This Workout Plan For Beginners Will Help You Challenge Yourself at the Gym

You'll start this weeklong gym workout routine with a cardio day. Feel free to choose whatever kind of cardio you'd like — if you love indoor cycling classes or dance cardio workouts, go for it. If you need a little guidance, Holly says the perfect cardio for beginners is walking or jogging on the treadmill for about 25 minutes. "Start with zero incline and get your heart rate up to where it's hard to hold a conversation," she says. "The speed should be comfortably challenging." After the first two weeks, try one of these treadmill workouts to kick it up a notch:

• 12-3-30 Incline Workout
• Taylor Swift Strut Treadmill Workout
• 25-Minute Walk-Run Workout