Get The Exercise High!
Before you start an exercise program, and get the exercise high, you should talk to your doctor. If you have been particularly
sedentary in the past or if you have certain medical conditions this is especially important. You and your doctor can devise
an exercise program that is safe and most beneficial for you.
Here are some guidelines from the American Heart Association to help you decide.
See your doctor if:
1. You are middle aged or older.
2. You have a heart condition and your physical activity should be medically supervised.
3. You are taking medicine for your heart and/or blood pressure.
4. You get pains in your chest, left side of your neck, or your left shoulder or arm when you exercise.
5. Your chest has been hurting for about a month.
6. You tend to get dizzy, lose consciousness, and fall.
7. Mild exercise leaves you breathless.
8. You have bone or joint problems that a doctor told you could be worsened by exercise.
9. You have a medical condition--such as insulin-dependent diabetes-that requires special attention in an exercise program.
Your doctor, after examining you, may want you to takea stress test, in which your heart will be carefully monitored in
a lab while your body is put through a series of graded physical efforts, usually walking on a treadmill of adjustable workloads.
THE EXERCISE PRESCRIPTION
The exercise prescription involves four basic factors:
1. Mode or type of exercise
2. Frequency of exercise
3. Duration of exercise
4. Intensity of exercise
1. MODE OF EXERCISE--The prescribed exercise program should focus on one or more modes, or types of cardiovascular endurance
activities. Traditionally, the activities prescribed most frequently are:
Walking, Jogging, Running, Hiking, Cycling, Rowing, Swimming.
Because these activities do not appeal to everyone, alternative activities have been identified that should promote similar
cardiovascular benefits. Aerobic dance, box or bench stepping, most raquet sports or any type of activity that is steady,
nonstop and uses large muscles (arms and legs) have also been shown to improve aerobic capacity.
Aerobic exercise may be the center place of the exercise program but it is still only a piece of the total program. The
exercise program should also include flexibility training (stretching) and resistance training (weight lifting).
2. FREQUENCY OF EXERCISE--The frequency of exercise participation, though certainly an important factor to consider, is
probably less critical than either exercise duration or intensity. Research studies conducted on aerobic exercise frequency
show that 3 to 5 days per week is an optimal frequency. This does not mean that 6 or 7 days per week won't give additional
benefits, but simply for the health related benefits, the optimal gain is achieved with a time investment of 3 to 5 days per
week of aerobic exercise. Exercise should initially be limited to 3 or 4 days per week and increased up to 5 or more days
per week only if the aerobic activity is enjoyed and physically tolerated. All too often, a person starts out with great intentions,
is highly motivated, and exercises every day for the first few weeks, only to stop from utter fatique or injury. Obviously,
additional days above the 3 to 4 day frequency are beneficial for weight loss, but this level should not be encouraged until
the exercise habit is firmly estabished and the injury risk is reduced.
Resistance training (weight lifting) should be done two or three days per week and never two days in a row. Resistance
training can be done on the same day as aerobic exercise or you can work with the weights on the days you are not doing aerobic
Flexibility training (stretching) can be done every day if you like. Probably the best time to stretch is after exercise
as part of the cool-down.
3. DURATION OF EXERCISE--Several studies have demonstrated improvement in cardiovascular conditioning with endurance exercise
periods as brief as 5 to 10 minutes per day. More recent research has indicated that 20 to 30 minutes per day is an optimal
amount. Again, optimal is used here to reflect the greatest return for time invested, and the specified time refers to the
time during which you are at your appropriate exercise intensity. Exercise duration cannot be discussed appropriately without
also discussing exercise intensity. Similar improvements in aerobic capacity are gained with either a short-duration, high
intensity program or a long-duration, low intensity program if the minimal threshold is exceeded for both duration and intensity.
Similar benefits are also gained whether the daily endurance training session is conducted in multiple shorter bouts (e.g.,
three 10-minute bouts) or a single long one (e.g., a single 30 minute bout).
Resistance training should take no more than 30 to 60 minutes to complete (this is a full body workout).
Flexibility exercises can take as little as a few minutes or up to a half hour depending on your preference and time.
4.INTENSITY OF EXERCISE--The intensity of the exercise bout appears to be the most important factor. How hard must you
push yourself to gain benefits? This depends on your current state of fitness. The more fit you are the harder you will have
to push yourself to improve your fitness. When you are just beginning a fitness program don't worry about trying to push yourself
hard, it is important to exercise at a relatively easy pace during the first few months of an exercise program. Over a period
of time you can gradually increase the intensity of exercise.
There are several methods used to determine your aerobic exercise intensity. Monitoring your exercise heart rate is probably
the most popular method. The American College of Sports Medicine recommends that most healthy people exercise somewhere between
60% to 90% of their maximum heart rates. The problem with this method is determining your maximum heart rate. You can estimate
your maximum heart rate (220-age), but this is really not much more than a guess, just because two people are the same age
does not mean they have the same maximum heart rate. In my opinion, a better method to determine aerobic exercise intensity
is what is called "The Rate of Perceived Exertion". With this method, individuals subjectively rate how hard they
feel that they are working. This system for monitoring exercise intensity has proven to be very accurate. To be working at
the correct level of intensity of aerobic exercise you should feel that you are working hard enough to demand deep breathing,
but not so hard that you have to gasp for air. In fact you should be able to carry on a conversation during aerobic exercise.
You should also be able to maintain your pace of exercise for at least 20 to 30 munutes.
Flexibility exercises should be performed slowly and gently. Quick, forced stretching movements are potentially dangerous
and can lead to pulls or spasms.
Resistance training does require a rather intense momentary effort to build strength, but when you first begin to lift
weights it is very important to start out easy. You have to give your body time to adapt to the stress of resistance training,
if you push too hard you will be sorry the next day, that is for sure! Over time your body will adapt and you can begin to
push harder and lift heavier weights
THE EXERCISE PROGRAM
Once the exercise prescription has been determined, it is intergrated into a total exercise program. The total exercise
program consists of the following activities:
2. Endurance training (aerobic exercise)
4. Flexibility training (stretching)
5. Resistance training (weight lifting)
Generally, the first three activities are performed three to five days a week. Flexibility training can be included in
the cool-down, or it can be done at a seperate time during the week. Resistance training is usually done on alternate days
when endurance training is not; however, the two can be combined into the same workout. Now. let's examine each of these activities.
1. Warm-up--The warm-up should last about 5 to 10 minutes. Easy stretching and low intensity exercise, (the same mode
of exercise you will be doing during the endurance training phase of the session). For example, if you train by running, you
might start with easy stretching and follow it with 5 to 10 minutes of light jogging. Such a warm-up period increases both
heart rate and breathing, preparing you for the efficient and safe functioning of your heart, blood vessels, lungs, and muscles
during the more vigourous exercise that follows. A good warm-up also reduces the amount of muscle and joint soreness that
you experience during the early stages of the exercise program and can decrease your risk of injury.
2. Endurance training (aerobic exercise)--Physical activities that develop cardiovascular endurance are the heart of the
exercise program. Thay are designed to improve both capacity and efficiency of your cardiovascular, respiratory, and metabolic
systems. These activities also help you control or reduce your body weight. Activities such as walking, jogging, running,
cycling, swimming, and rowing are good endurance (aerobic) activities.
3. Cool-down--Every endurance training session should end with a cool-down period. Cool-down is best accomplished by
slowly reducing the intensity of the endurance activity during the last several minutes of your workout. After running, for
example, a slow walk for several minutes helps prevent blood from pooling in your extremities. Stopping abruptly following
an endurance exercise bout causes blood to pool in your legs and can result in dizziness or fainting. After cooling-down for
5 to 10 minutes you can perform stretching exercises to facilitate increased flexibility. Stretching after vigorous exercise
is safer, easier and feels better than stretching before exercise.
4. Flexibility training (stretching)--Flexibility training (stretching) can be performed as part of your cool-down. Stretching
exercises are quite usefull for those who have poor flexibility or muscle and joint problems, such as low-back pain. These
exercises should be performed slowly. Quick stretching movements are potentially dangerous and can lead to muscle pulls and
spasms. At one time it was recommended that stretching exercises be performed before aerobic exercise, but recent research
has shown that muscles, tendons, ligaments and joints are more adaptable and responsive to stretching exercises when they
are done after the endurance training phase.
5. Resistance training (weight lifting)--Increased interest surrounds the use of resistance training as part of a general
health and fitness program. Indeed, many health-related benefits can be obtained from resistance training. The American College
of Sports Medicine has recently included resistance training in its recommendation for a general health and fitness program.
When you start a resistance training program for the first time it is very important to take it easy, don't try to lift heavy
weights or push yourself too hard, let your muscles, tendons and joints adapt to the new type of stress they are experiencing.
If you push too hard you are likely to experience extremely sore muscles the next day and won't be able to lift weights again
for a week! So please take it easy during your first couple of weeks of resistance training. Let the first two weeks be used
to learn how to perform the various types of resistance training exercises.
After the first couple of weeks you can start to get serious. There are many different formulas used when prescribing
a resistance training program. I would recommend that you start by using a weight that you can lift ten times without stopping.
If you can lift that weight more than ten consecutive times then you need to use a heavier weight, and if you can't lift the
weight ten consecutive times on your first attempt then you need to use a lighter weight. Just make sure the weight you are
using allows you to lift it just eight to ten consecutive times before you give out, this will be your appropriate starting
weight. You should try to achieve as many repetitions as possible during the second and third sets, but the number of repetitions
you can perform in these last sets will probably decrease as your muscles become fatigued. You can perform two or three sets
of each exercise per day, 2 or 3 days per week. Make sure you never lift weights two days in a row, it is important to give
your muscles 48 hours or more to rest and adapt after resistance exercise. As your strength increases, the number of repetitions
you can complete per set will increase. When you reach 15 repetitions on the first set, you are ready to progress to the next
higher weight. This training technique is refered to as progressive resistance training.
The specific resistance training exercises and their proper performance can be learned from various books on resistance
training but probably the best way to learn how to properly perform these exercises is to hire a qualified fitness trainer.
After a few sessions with a certified fitness trainer you will be ready to tackle a resistance training program safely and
STICKING WITH IT
Many people find that difficult as it is to start an exercise program, it is even more difficult to stick with it. One
tip is that you must make your workout a vital part of your day. If you save exercising for your spare time, when you get
around to it, you probably never will.
An important factor in deciding when to exercise is where to exercise. If you need a facility such as a gym, swimming
pool or exercise equipment, you probably want it convenient to either home or work.
You can't exercise very well if you are sick or injured, so don't forget to follow the recommendations on the "How
to Exercise Safely" page.