Fitness - Aerobic Training

Fitness in general includes both aerobic and anaerobic aspects. According to the priorities of the sportsman, one or the other of the two aspects will be emphasized, but the second one will not be neglected. The purpose of doing fitness exercises is, ideally, to create a complete athlete, able to face various physical and psychological demands.

The object of aerobic fitness is the so-called cardio training, a term which refers to the cardio-vascular system and the heart muscle (myocardium). We'll talk about trainings which do not make oxygen duty and which are generally called 'trainings of aerobic effort'. More exactly, they refer to efforts which take a long time (more than 12 minutes) – usually they take between 20 and 60 minutes and they determine acceleration of cardiac frequency and lung ventilation. Efficiency in training requires a frequency between 60-80% of the maximum cardiac frequency (calculated according to the formula 720-age – in years).

The typical exercises of aerobic fitness come from classic resistance sports (long distance running, cycling, swimming, fast walking, etc.) and from different aerobic training programs (aerobic gymnastics, step-aerobic, tae-bo, dance, etc.).

Aerobic fitness uses specific cardio machines: treadmill, classic or elliptical trainer, stepper,etc. Dosing the aerobic effort depends on the somatic type and the actual objectives of each sportsman.

Normally, the ectomorphic and mezomorphic types, which do not accumulate large quantities of subcutaneous adipose tissue, will need to practice for a rather short time (20-30 minutes per training in two or three trainings a week, in non-consecutive days). This time is necessary for realizing an effective cardiac stimulation, without the risk of losing muscular mass.

For the endomorphic somatic type, 'benefiting' of a lot of adipose tissue, aerobic training must last 45-60 minutes and needs to take place 4-6 times a week.

Even if trainings are extended (time, miles) and they are more frequent, their intensity, which is given by the cardiac rhythm per training, must remain high, so finally the body burns as many calories as possible. It is well-known that only after 20-30 minutes the body starts to mobilize the fat 'deposits'. Before this, at the beginning of the training, the energetic support of the aerobic effort is ensured by the muscular and hepatic glycogen, the same as in anaerobic efforts, which are supported exclusively by the glycogen from the muscles and the liver.

This is one of the main reasons for recommending, in programs designed for losing weight, aerobic exercises – they are the biggest and fastest 'fat burners'. Of course, the other big benefits of these exercises appear at the cardiovascular, pulmonary, psychological and other levels.

A real euphoria is observed at the psychological level during aerobic training. This is motivated by the big number of endorphins produced in the body by this type of effort. Endorphins, also called hormones of happiness, are not produced in such a big quantity during anaerobic effort. Anaerobic training determines a big release of catecholamine (adrenaline, noradrenalin), which are considered stress hormones.

A disadvantage of aerobic fitness is, first of all, non-developing a strong and fortified musculature, because of the reduced muscle efforts. We can also observe (and must resist) the monotony of the training, which is long and repetitive.

However, generally speaking, the advantages of aerobic fitness are remarkable and irreplaceable.

By: Gaby Munteanu

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Gaby Munteanu is a fitness trainer, with over 15 years experience, and editor at www.healthfitnessworld.com. HealthFitnessWorld.com - Health, Fitness, Body Building, Weight Loss, Nutrition - Articles and Resources. HealthFitnessWorld.com is dedicated to providing high-quality, free advices, tips and resources on health, fitness, body building, supplements, nutrition, weight loss, beauty, massage, acne, medicine, depression, massage. This article may be reprinted or published without the author's consent as long as the "About" and "weblinks" are kept intact and active.

5 Components Of Physical Fitness

Physical fitness is the ability to function effectively throughout your workday, perform your usual other activities and still have enough energy left over to handle any extra stresses or emergencies which may arise.

The components of physical fitness are:

1. Cardiorespiratory (CR) endurance - the efficiency with which the body delivers oxygen and nutrients needed for muscular activity and transports waste products from the cells.
2. Muscular strength - the greatest amount of force a muscle or muscle group can exert in a single effort.
3. Muscular endurance - the ability of a muscle or muscle group to perform repeated movements with a sub-maximal force for extended periods of times.
4. Flexibility - the ability to move the joints or any group of joints through an entire, normal range of motion.
5. Body composition - the percentage of body fat a person has in comparison to his or her total body mass.  

Improving the first three components of fitness listed above will have a positive impact on body composition and will result in less fat. Excessive body fat detracts from the other fitness components, reduces performance, detracts from appearance, and negatively affects your health.

Factors such as speed, agility, muscle power, eye-hand coordination, and eye-foot coordination are classified as components of "motor" fitness. These factors most affect your athletic ability. Appropriate training can improve these factors within the limits of your potential. A sensible weight loss and fitness program seeks to improve or maintain all the components of physical and motor fitness through sound, progressive, mission specific physical training.

Principles of Exercise

Adherence to certain basic exercise principles is important for developing an effective program. The same principles of exercise apply to everyone at all levels of physical training, from the Olympic-caliber athlete to the weekend jogger.

These basic principles of exercise must be followed.

Regularity

To achieve a training effect, you must exercise often. You should exercise each of the first four fitness components at least three times a week. Infrequent exercise can do more harm than good. Regularity is also important in resting, sleeping, and following a sensible diet.

Progression

The intensity (how hard) and/or duration (how long) of exercise must gradually increase to improve the level of fitness.

Balance

To be effective, a program should include activities that address all the fitness components, since overemphasizing any one of them may hurt the others.

Variety

Providing a variety of activities reduces boredom and increases motivation and progress.

Specificity

Training must be geared toward specific goals. For example, people become better runners if their training emphasizes running. Although swimming is great exercise, it does not improve a 2-mile-run time as much as a running program does.

Recovery

A hard day of training for a given component of fitness should be followed by an easier training day or rest day for that component and/or muscle group(s) to help permit recovery. Another way to allow recovery is to alternate the muscle groups exercised every other day, especially when training for strength and/or muscle endurance.

Overload

The work load of each exercise session must exceed the normal demands placed on the body in order to bring about a training effect.

By: Peter Somerville

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(C) 2005 by Peter Somerville. Peter is a former military officer, and the creator of The Paratrooper's Guide To Fitness and Weight Loss. Now anybody can take advantage of the world's most carefully researched and successful physical fitness training program. Peter contributes to lean-and-mean.net