Burns more calories while you are training and afterward because it increases the length of time it takes to recover from each exercise session (EPOC).
Results in metabolic adaptations that enable you to burn more body fat.
Trains both anaerobic and aerobic energy systems: The high-intensity intervals tap into your anaerobic metabolic systems, while the lower-intensity intervals use your aerobic system.
Improves athletic performance.
Interval training can be performed with any modality of cardio exercise and is very simple to do. For example, if you are on a treadmill or exercise bicycle, just start out at a low level, and once you are warmed up (3 to 5 minutes) advance the level of difficulty to 1 to 2 minutes of higher-intensity intervals interspersed with low-level rest periods of 1 minute. Just keep increasing your high-intensity level of work until you get to the percentage of your target heart rate you want to work at and stay there until you think it’s time for a 5-minute cool-down. You will need a heart rate monitor to gauge the intensity of your workouts.
Most high-intensity interval workouts take around 20 to 35 minutes including warmup and cool-down. For each of the Life Plan cardio workouts, I’ve outlined exactly what this will look like. If you like to listen to music while you exercise, you can let the musical cues prompt you when to speed up or slow down. You can actually download onto your iPod fast songs separated by slower songs to create the perfect HIIT program for you. As your level of fitness improves, you can reprogram your iPod appropriately.
The Components of a Good Cardio Program
I perform 40 to 50 minutes of cardio four to five times a week on my exercise bike in order to stay lean and energized and keep my head on straight. However, I take one week off from cardio and resistance training every six months. This is the only time I miss workouts. This means no exercise at all for an entire week. When I return to the gym, I am really psyched and anxious, both mentally and physically, to get back at it. I’m not only energized, but I know that this rest period will help prevent burnout and possible injuries due to overtraining.
Just like the Life Plan for Healthy Eating, the cardio workout has three entry points:
The Basic Health Cardio Workout
The Fitness Cardio Workout
The High-Performance Cardio Workout
Regardless of the level at which you are entering the program, the cardio component is built on the same principles. I use the acronym FITT to outline all of the areas you need to consider for your program.
F—Frequency:
How many days will you need to do cardio work?
I—Intensity:
If you want to drop body fat or improve your level of cardiovascular fitness, you need to train at a fairly high intensity. Remember to train at a heart rate that is appropriate for your goals. Start easy and increase your level of intensity gradually over several weeks to months. Remember, this is not a 12-week program, it is a lifetime program.
T—Time:
How much time you spend during each cardio session.
T—Type:
Choose two or three cardio activities that you like that can be switched around depending on your time and availability of training partners and facilities (courts, pools, gyms, and so on).
Your beginning cardio program may look something like this:
Frequency
Intensity
Time
Type
3 days a week
60–70% of your HR
max
30 minutes
cycling
After two weeks, revisit the FITT principle and increase your cardio program. A method that I commonly use is:
Week 3—Increase
Frequency
Week 4—Increase
Intensity
Week 5—Increase
Time
Week 6—Change the
Type
You can continue to go through this cycle endlessly to keep your heart, lungs, and circulation improving as you burn up more and more calories on a weekly basis. This approach will give you a lifetime of fitness and leanness you never dreamed possible. Use this method at each level of my Life Plan Cardio Program.
As your level of fitness improves you can move from the Basic Health Cardio Workout to the Fitness Cardio Workout and ultimately to the High-Performance Cardio Workout. Be sure to keep accurate records of your RPEs, HR
max
, and heart-rate recovery. You will know when you are ready to move into the next phase of your training when your workouts become too easy, or your HR
max
is lower, or your heart-rate recovery is faster. If you move ahead and find that you are not ready, don’t get discouraged. Just go back to where you were, and in a week or so you will be able to comfortably move to the next level. Don’t forget, this is not a 12-week program . . . this program is a Life Plan: You don’t have to rush to the next level until you are completely ready.
BRET A. FITZGERALD
“As a guy, going from your 30s to your 40s is no picnic. But going from your 40s to your 50s can be downright traumatic. At least it was for me. I felt weaker than I had ever remembered feeling. I felt joint pain that was significant enough to use as an excuse not to work out. My shirts were tight in the middle and loose in the chest and shoulders.
Having been a triathlete from my 20s into my mid-40s, I felt like those days were over for me.
“The final insult was when I had to buy new pants, and squeezed myself into a 40 waist. When I put them on and they were tight, that was the ultimate moment of frustration, self-reflection, and truth. That was the moment that brought me to Jeff.
“I never thought that I needed to see a doctor about the way I looked, because I had been in the health club industry my entire career. I had a Masters of Education in Health Promotion from the University of Nevada, and had completed the Ironman Triathlon in Kona, Hawaii, in 1983 in 12 hours 39 minutes. But this time, I knew I needed help.
“From the first time I called the office to schedule my initial workup, his incredible team displayed total professionalism in a matter-of-fact, nonjudgmental forum. When we started together I told Dr. Life that I wanted to get back to my Ironman Triathlon shape. He was confident I could, and now I am really on my way. Since starting Dr. Life’s program, I have gotten leaner, stronger, and more confident.
“For the last few years I was unable to run more than a mile. Now I’m running three miles. My shirts are now loose at the waist and tight in the chest, shoulders, and arms. I’m starting to train for triathlons again. Now I walk into a room full of 20- and 30-year-old guys and say to myself, ‘I can hang with these guys.’ This 52-year-old father of a busy 5-year-old daughter has found the modern-day fountain of youth, and he likes it.”