Aerobics
Aerobics is a form of exercise that comprises rhythmic aerobic exercise with stretching and strength training routines with the goal of improving all elements of fitness (flexibility, muscular strength, and cardio-vascular fitness). It is usually performed to music in a group setting led by an instructor, although it can be practiced solo and without musical accompaniment. With the goal of preventing physical illness, practitioners go through variable routines comprising a number of different dance-like exercises.

Formal aerobics 'classes' led by aerobics instructors are often divided into beginner, intermediate and advanced classes, with different routines and fitness goals for each, and many aerobics classes allow participants to select their level of participation according to their fitness level.

A primary reason for engaging in aerobics is weight loss. Although aerobics is typically practiced to music, it is not to be confused with jazzercise or other dance-based workouts.[citation needed]

The word Aerobics means "using oxygen". When you do an aerobic exercise, like Soccer, basketball, running, or Aerobics, you are breathing. The oxygen passes through your body, as opposed to using up the bodily storage like you do during Sprinting, or bench pressing. Eventually, the muscles are filled with lactic acid, which then takes rest to flush away.

The main international governing body for aerobics is the Féderation International de Gymnastique, based in Liège, Belgium.[citation needed] It was formed in 1881. Italian Bruno Gandi is the current presidentAerobic as applied to metabolism in cells of the body, or in microorganisms, means oxygen-utilizing. Aerobic metabolism occurs in most animal cells, and depends upon the presence of mitochondria, in which the key chemical processes take place. Aerobic bacteria inhabit the body surface and orifices — they do not have mitochondria. Aerobic exercise is that which is sustainable in balance with oxygen intake — for example, a 10 km race, or any milder rhythmic exercise.


Anaerobic
Applying to metabolism in the cells of the body, or to micro-organisms, this means functioning without oxygen. Examples include anaerobic glycolysis: the pathway of hexose breakdown from glucose 6-phosphate to lactate in muscle, and the main component of the metabolism of red blood cells, which have no mitochondria. Anaerobic bacteria inhabit the lower part of the intestines. Applying to exercise: more intense than can be maintained in balance with oxygen intake, aerobic pathways being insufficient to supply energy at the required rate (though they always contribute as well) — as in a 200-metre sprint.

Physical fitness comprises two related concepts: general fitness (a state of health and well-being) and specific fitness (a task-oriented definition based on the ability to perform specific aspects of sports or occupations). Physical fitness is generally achieved through correct nutrition, exercise, and enough rest.

In previous years fitness was commonly defined as the capacity to carry out the day’s activities without undue fatigue. However, as automation increased leisure time, changes in lifestyles following the industrial revolution rendered this definition insufficient.

These days, physical fitness is considered a measure of the body’s ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist hyperkinetic diseases, and to meet emergency situations


Activities: Means any kind of movements you make in your life use your body activities. Like Exercise, fitness, Athletics and any kind of sports and in our A.N.A activities.

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