There are several reasons why you may need to increase blood circulation to the legs. If your legs have fallen asleep or have a tingling feeling then increasing blood flow will resolve this. If you are preparing to run or perform a leg workout then increasing circulation to the legs will put your body in the proper state. Some medical issues that can reduce blood flow to the legs are peripheral arterial disease, pregnancy, obesity and diabetes. You can easily increase blood flow with some simple exercises.
Squats using only your body weight are easily performed and can be done in a few minutes. Begin by finding a broom or something similar, this will be used to maintain proper form throughout the exercise. Place the broom across your upper back as if performing a weighted squat. Squat down until your thighs reach parallel to the floor and then quickly rise back up. These squats will be performed much faster than weighted squats. Do three sets of 20 reps.
Split-Leg Jump Lunges
This exercise will increase blood flow and warm up your legs. Begin by standing up straight, now put one foot forward until that leg forms a 90-degree angle. The other leg is straight with a slight bend at the knee, you should now be in a lunge position. From this position, jump up in the air and simultaneously cycle your legs. The opposite leg should now be at 90 degrees. Perform three sets of 10 reps.
This exercise is quite effective for both warming up your legs and increasing circulation. Start in a squat position with your legs bent at roughly 45 degrees. Your arms should be straight and your hands by your hips. Lean forward slightly and then swing your arms upward while simultaneously jumping up and reaching toward the ski. Focus on a soft landing and quick rebound. Do three sets of six.
Standing up on your legs promotes an increase in blood flow. If you have to sit for an extended period of time you should get up every half hour and walk around for a few minutes.