When most people think about working their core muscles, they only think about exercises that mostly work your abdominals like crunches and sit ups. Your core muscles also consist of your lower back muscles. When you have strong lower back muscles, you can actually appear taller and thinner. The Superman exercise is a great way to strengthen your core muscles, including your lower back.

Here is how to do the Superman exercise:

1. Lie face down on your stomach on a carpeted surface or on an exercise mat. Extend your arms straight out in front of you on the floor with your palms on the floor. Your legs should be straight behind you.
2. While keeping them straight, lift your arms and legs up off the ground. Keep your head facing downwards. You should have a slight curve in your back.
3. Hold this position for at least 5-10 seconds making sure to breathe and keep your abdominals contracted.
4. Lower your arms and legs back to the ground. Repeat the exercise for the desired amount of reps. Aim for at least 8 reps at a time.

There is also an alternating version of the Superman exercise. In this version of the exercise you only lift one arm off the ground as you lift the opposite leg at the same time. Then, you alternate between the two sides to complete a set.

The Superman exercise is one of the best ways to strengthen the lower back. Not many people realize just how important a strong lower back is. Think about how many things you lift in a day. Without strong lower back muscles, you may not be able to lift heavy items such as your kids.

Also, as mentioned, your lower back muscles support your whole body as they make up your core. When you have weak lower back muscles you may find that you have bad posture or you have trouble doing everyday tasks such as sitting for an extended period of time. If you can strengthen your lower back muscles, you help tighten up your core, which can make you not only look taller, but much thinner as well.

The Superman exercise can be added to any type of strength training workout or even a yoga routine.

A tuck jump is what is known as a plyometric exercise. Plyometrics are special moves that are done to increase power, speed, and explosiveness all in one exercise. This type of training is most often done by athletes who are looking to increase a vertical jump or speed. Tuck jumps are just not for athletes though, as they do have benefits that can help the average person. They are a good way to build up strength in your legs and burn tons of calories in a short period of time.

Here is how to do a tuck jump:

1. Stand with your feet approximately shoulder-length apart and your arms straight out in front of you.
2. Bend your knees so that you lower your body into the squatting position. Your arms should still be straight out in front of your body.
3. As soon as you reach the bottom of the squatting position, you need to explode up so that you make your jump as high as possible.
4. Once your feet are off the ground, quickly pull your knees into your chest. When you are at the highest point in your jump, your knees should be touching your chest.
5. As you starting going down towards the floor, un-tuck your knees and land softly on the ground with knees slightly bent. Your arms should always be in front of you.
6. Immediately go back into the squat position and continue with the tuck jumps. Do as many reps as possible. Try to aim for at least 10-15 at a time to begin with.

If you are a beginner to exercising, you can make tuck jumps easier by not tucking your knees to your chest and simply doing squat jumps instead. Then you can work your way up to the tuck jumps once you have been able to increase your vertical jump and stamina.

Be sure that you are jumping as high as you can on each of the tuck jumps. Jumping only slightly off the floor is not going to improve your jump or speed. If you want to get a cardiovascular exercise in with tuck jumps then try continuous tuck jumps for at least 1-2 minutes and see how high your heart rate gets.

Tuck jumps can be added to a circuit training routine or a cardiovascular workout, but always be sure that you are properly warmed up before attempting this exercise.

The thought of doing mountain climbers may bring you back to your elementary physical education class, but your P.E. teacher may just have known what he was doing. Mountain climbers are actually a great strength training and cardiovascular exercise mixed into one. They help increase your endurance, which is were the cardiovascular workout comes in, and they work to increase your core strength and upper body strength.

How to do a mountain climber:
1. Get into a normal push up position on your feet and hands. Be sure that your back is straight and your abdominal muscles are contracted the whole time.

2. Bring the right knee up to the chest.

3. Extend the right leg back out at the same time you start bringing in your left knee to your chest.

4. Keep quickly alternating your legs. You can do mountain climbers for a certain period of time as 5 minutes or you can do a set of 100 of them.

If you want to make your mountain climbers a lot harder, try doing them with your hands on a balance board. The balance board gives instability which makes you work that much harder to stay balanced during the exercise. Mountain climbers with a balance board will have you feeling your abs the next day. You can also choose to add ankle weights as well to make the exercise more challenging for you.

When performing mountain climbers, your abdominal muscles should be engaged the whole time. When you bring your knees up to your chest, there should be a slight twist that also helps to slim the abs as well. Also, since you are in a push up position the whole time, your upper body such as your shoulders, triceps, and upper back is working to keep you supported, which means they are getting a workout as well.

Mountain climbers, although they may seem silly at first, are a great way to get a strength workout as well as a cardio workout for your entire body.

Jumping jacks may not be a popular choice for some people, but they are a very effective exercise that are not just for warm ups. Jumping Jacks can easily be integrated into a cardiovascular workout as well as a strength training workout.

Have you ever tried to do 50 jumping jacks in a row? How about 100? I mean actual jumping jacks and not the cheap version were you only move your wrist back and forth and your legs never leave the ground. If you haven't tried this many jumping jacks in a row before, go ahead and try it now. You will see exactly how much of a cardio workout that you are getting.

If you do a jumping jack correctly you can also get a great workout to strengthen your muscles. By keeping your abdominal muscles contracted the whole time, you are getting a core workout as well. Jumping jacks work your entire body and when you add weights, it takes it to the next level.

Here is how to do a jumping jack:
1. Stand with your arms down by your sides and your feet together. Knees should be very slightly bent and your abs should be contracted.
2. Bend your knees as you jump, kicking your legs out to the sides so that they are wider than shoulder length. At the same time raise your arms up over your head so that the two hands meet right over your head. Your elbows should be slightly bent.
3. Jump your legs back together as you bring your arms down back to starting position.
4. Do not take a break and continue the steps until you have reached your desired repetition.

To add some challenge to your jumping jacks, you can wear weighted gloves or add a light dumbbell to the workout. This makes the exercise more of a strength training maneuver as well.

Remember that although jumping jacks do make a great warm up exercise, the intensity can be increased and they can also make a great addition to a cardiovascular or circuit training routine.

Some people dread the word lunges when it comes to exercise, but lunges are one of the best exercises to work your lower body. They can help tighten and tone your calves, hamstrings (back of your legs), quadriceps (thighs) and also slim down your hips and stomach, while lifting your butt. That is a lot for a simple exercise. Add in some arms raises or biceps curls with weights and you can get in a total body workout. Best of all, there are different variations of lunges that work to specifically target a certain muscle in your lower body.

Here is how to do the basic lunge:

1. Stand with your feet approximately hip-width apart with your hands on your hips or down by your sides holding dumbbells.

2. Take one big step forward with one of your legs.

3. Bend the knee of your front leg until your thigh is parallel with the ground as you also bend the back leg so that the knee comes down towards the ground. The back leg should be balanced on your toes.

4. Raise yourself back up and step your front leg back to the starting position.

5. Do your set on your one leg and then switch your lead leg to work both legs evenly.

As mentioned, there are quite a few varieties of lunges that you can do. With a static lunge you don't take your step forward, but just drop your back knee down into a lunge position. Side lunges are a little bit different movement as you are taking a step out to the side and lunging that way instead of stepping forward. A side lunge works more of your inner and outer thigh as well as your hips.

You can also add other fitness equipment into your lunge workout. Add resistance bands under your feet to make your legs work harder. Or place your back foot up on a step to switch the focus of the exercise almost entirely on the front leg and thigh.

Be sure that you have a good pair of tennis shoes on when doing lunges so you do not injure yourself.

Lunges are a great exercise to add to your exercise routine. They also make a great addition to any circuit training routine as well. If you want toned and tighter legs and butt, then you need to start practicing your lunges.