The key to the source of power of the golf swing is the strength of your core muscles. The core muscles are comprised of the abdominal muscles, obliques and hip flexors, along with your lower-back muscles. They are the connection between your upper and lower body and drive your swing speed and resulting distance on the golf course. Two exercises that you can do at home with no equipment to exercise your abs and core muscles are working your oblique abs directly and single leg lifts.
Difficulty: Moderately Easy
Sit on the floor with your back straight, legs bent at the knees, and extend your arms directly in front of your body.
Contract your abs by trying to suck in your stomach. Then swing your right arm down and behind your back as if you were doing a reverse circle with the arm. This helps to exercise the side abdominal muscles. Repeat with your left arm. Do three sets of 10 repetitions each before moving to the next exercise.
Take a 60-second break, and then place your hands behind your back where you belt would lie if wearing pants. Tilt forward until your back is parallel with the floor in the standing position.
Contract your abs by sucking in your stomach and lift your right leg, moving parallel with your torso while standing. Repeat the lift 10 times, stand, and conduct the exercise raising your left leg.