Regularly working out at the gym can help you transform your body and even improve your mental health, but it's easy for your workout to feel mundane after a while. If you find that you're getting bored of the pattern of using the elliptical trainer, lifting some free weights and then repeating this workout day after day, breathe new life into the gym visit by spicing up your workout regimen. Many gyms are equipped with a variety of ways to keep fit and focusing on something new can renew your passion for working out. Here are three exercises to try.

Boxing

If your gym has a heavy bag hanging in the corner, grab some hand wraps and gloves and get physical. Boxing is an excellent way to keep in shape; not only does this exercise work virtually all your body's major muscle groups, but it's also an effective calorie burner. A 155-pound person will burn more than 400 calories in an hour of hitting the heavy bag. Even if you don't know much about the proper technique, focus on keeping your feet moving and throwing punches with both hands. Boxers often work for three minutes and then take a one-minute break, so keep an eye on the clock. Even if you don't have aspirations of stepping into the ring, it's hard to knock this workout.

Jumping Rope

It's easy to see jumping rope as a schoolyard activity, but this form of exercise is anything but child's play. Whether you jumped rope as a kid or shied away from it, grab a rope, position yourself in front of a full-length mirror to watch your form and get bouncing. It can take some time to get used to the rhythm, but you'll be feeling the effects of this up-tempo workout in no time. At a moderate pace, a 155-pound person will burn more than 700 calories per hour jumping rope; it's unlikely that you'll be able to perform this exercise for 60 minutes, but this rate of calories burned per minute is extremely high. Keep your jumps low -- there's no need to lift your feet more than an inch off the ground -- to conserve your energy and lessen the impact to your joints.

Circuit Training

One of the primary benefits of circuit training is that it never gets boring. This form of exercise combines aerobic and strength-training workouts performed in short bursts and packs a calorie-burning punch. A 155-pound person can expect to burn calories at a rate of nearly 600 per hour. The combination of exercises that you adopt is virtually endless. Try three minutes of jogging on the spot followed by 20 push-ups, and then move into three minutes of riding a stationary bike at a vigorous pace followed by 20 sit-ups, for example.

Talk to the trainers at your local gym, such as American Fitness, to get started on a new routine.