Interval Training:
Faster results in a shorter period of time.Interval training is something that has peaked my interest over the past few months. After being introduced to it in running with speed interval training (fartlek), and most recently with P90X's Interval Training Plus workout, it is slowly becoming an obsession.
Interval training is nothing new and has been around for quite some time. Elite athletes use it to improve their performance. Now, exercisers from novices to the regulars are finding that interval training can not only improve their cardiovascular fitness, but also increase their body’s potential to burn fat.
The best part of this training is that you see the benefits fairly quickly, for some, in a matter of weeks.
Interval TrainingInterval training is a very simple in nature. It is basically defined as repetitions of short bursts of high-speed/high-intensity work followed by periods of rest or low activity.
Cycling can be used as an example. You can alternate riding at a leisurely pace, a moderate effort and an all out sprint. You could also alternate between just a leisurely pace and a sprint. The duration and speed of each interval should be based on your need and level of fitness. The key is to let your heart rate drop during the recovery phase before jumping back into your high-intensity phase.
What are the advantages of Interval Training?With interval training, exercisers are able to perform at higher levels of exertion than they would in a single sustained effort, such as long distance running. The recovery phase also allows time for the body to rid itself of some of the waste produced by working muscles. These waste products contribute to muscle soreness.
You are also participating in both aerobic, which requires oxygen to generate the energy needed, and anaerobic exercise, which requires stored carbohydrates for energy.
When you have high-intensity workouts, the body must use new muscle fibers. Once these recent recruits are trained, they are available to burn fuel even during easy-does-it workouts. "Any form of exercise that recruits new muscle fibers is going to enhance the body’s ability to metabolize carbohydrates and fat," Dr. Coyle said. (1)
As mentioned before, you will burn more calories. The harder you go, the more calories you will burn. You will still burn even if the bursts are short in duration. In the P90X Interval Plus workouts, some of the high-intensity exercises are only 10 seconds in length, but believe me that is all that is needed. And while you are burning all these calories, your cardio fitness will also be improving. This will contribute to your ability to exercise longer, as well as increase the duration of your high-intensity interval training.
Boredom, boredom, boredom! If you are bored doing interval training, you need to skip exercise and move on to alligator wrestling. As someone who embraces change, this is one of the top reasons for my newfound love of interval training. You are constantly changing and the variety is endless. You can turn your stagnate routine into an interval session just by changing the speed. The P90X Interval Plus uses lunges, jumping jacks, squats and push-ups, just to name a few. Intervals can also be applied to running, biking, swimming, etc.
What risks are involved?Just like other forms of exercise, interval training is not for everyone. This form of high-intensity training can put strain on cardiovascular system. Anyone who is at risk (heart disease, high blood pressure) should consult your physician, as this type of training can provoke heart attack or stroke for those at risk.
For those who do not exercise regularly, jumping into an intense interval training program might not be for you. If you rush into a strenuous workout before your body is ready, you may hurt your muscles, tendons or bones. Instead, start slowly. Try just one or two higher intensity intervals during each workout at first. If you think you're overdoing it, slow down. As your stamina improves, challenge yourself to vary the pace. You may be surprised by the results. (2)
ConclusionInterval training is tough and does require you to work hard, but the end results and benefits are worth the effort. Those who are not thrilled exercising to begin with can enjoy the full benefits of interval training in shorter workout sessions. As for endurance athletes, such as myself, the improved fat burning achieved means that we can no go longer before tapping into our stored up carbohydrates. This is also great news for those trying to work off those pounds, as well as those trying to avoid gaining extra weight.
Make sure you start each training session with about a 5 minute warm up to loosen up your body and enjoy the change that interval training can bring to your workouts.
Variety is the spice of life...
www.eeathlete.comResources1) Jaret, Peter, A Healthy Mix of Rest and Motion, New York Times May 3,2007
2) Interval training: Can it boost your calorie-burning power?, Mayo Clinic Staff, Feb. 8, 2008
3) Interval Training, www.acefitness.org/fitfacts