NO GYM REQUIRED: WORKOUT- FROM-HOME

You don't need a gym membership, or expensive fitness equipment, to get a good abdominal workout. Tummy tightening exercises don't require a lot of resistance. All you really need is a little floor space, and a small window of time to get results.
Before start crunching, there is one thing you need to know. While abdominal exercises can strengthen and tone your stomach, you may not enjoy the full reward unless you also watch what you eat.
Most people hold body fat around their midsection. Unless you reduce body fat, you may not see your sculpted abs. Get the best results by doing this workout combined with regular fat-burning exercise and a low-calorie diet.
The following abdominal workout is comprised of five simple exercises. Perform the first four exercise for 25 repetitions each. Hold the final exercise for 60 seconds. Repeat all five exercises three times, limiting rest between each exercise.
25 Sit Ups
Lie down, with your back against the floor and knees bent. Press the back of your heels into the floor to secure your feet. Place your arms across your chest and get ready to begin. While exhaling, lift your head, body and arms upward, bending at the waist until you are completely sitting up. Inhale on the way down while returning your upper body to the floor. Repeat for desired repetitions.
25 Crunches
Lie down, with your back against the floor and knees bent. Press the back of your heels into the floor. Place your fingertips behind your head, bending elbows out to each side. Be careful not to tug on your head. Slowly lift your shoulders and head off the ground, until they are no longer touching the ground. This is your starting position. Lift your head and body straight up toward the ceiling, as if you have a glass of water on your forehead. Exhale on the way up, and inhale on the way down while maintaining a tight stomach. Return your body to the start position, keeping your shoulder blades and head off the ground. Repeat for the desired repetitions.
EDITOR'S TIP:
How many sit ups can you do in 60 seconds? Track your repetitions each week to track your progress.
25 Side Oblique Crunches
Lie down, with your back against the floor and knees bent. Elevate your legs, keeping knees bent at approximately 90-degrees. Place your fingertips behind your head and keep elbows out to the side, being careful not to tug on your head. Slowly lift your shoulders and head off the ground, until they are no longer touching the ground. Bending from one side, move your elbow toward the knee on the same side of your body. For example, if you are working your right oblique, you will touch your right elbow to your right knee. Exhale, and engage the oblique muscles fully with each repetition. Return to the starting position, keeping the shoulders off the floor. Continue for the desired repetitions.
25 Reverse Crunches
Lie down, with your back, legs and arms flat against the floor. Palms should be face down on the floor. Elevate your legs until your shins are parallel to the floor and your knees are bent at 90-degrees. While exhaling, lift your hips and buttocks off the floor slightly. This will be your starting position. Bring your legs toward your upper body so your knees are at your chest. While inhaling, return legs to starting position and repeat for desired repetitions.
60 Seconds of Plank
Facing the floor, stretch your body out into a push-up position while maintaining all your weight on your hands and toes. Your body should be in a straight line from your head to your feet, being careful not to bend from the hips. Hold your stomach, low back and glutes tight. Hold this pose for 60 seconds.
Complete this workout two to three times a week for optimal results.