ATTENTION! The practice of physical activity always requires, regardless of what is legally imposed, the opinion of a doctor. Even if you do it alone, it is recommended to carry out a safety sports medical examination with cardiological, bronchopulmonary and possibly haematological tests..
How much, how to do it and which one to choose are all variables, as we will see below, which must be taken into account when drawing up the annual training protocol.
In the 21st century, the primary role of physical activity is preventive and therapeutic, especially in relation to obesity and related complications. Not for nothing, over 90% of the population that "moves" does it to lose weight or to improve their body composition.
For further information: Fitness: What it is and who it is for skeletal, which requires an energy expenditure and different from work or purely recreational activity'.
The simple wording "physical activity", for notional correctness, should be followed by the "desirable" qualifying adjective.
The so-called "desires", which should be considered an "extra-" with respect to the basal motor level, are used like the latter in the dietary and nutritional fields to calculate the overall energy expenditure.
The desirable therefore represent everything that is consumed outside of: basal metabolism, survival activities (personal hygiene, walking, etc.), work proper and different hobbies.
The estimate of the total caloric consumption is done by multiplying the basal metabolic rate (MB) of the person by a specific coefficient, different on the basis of:
- Sex;
- Age;
- Commitment of the work activity;
- Obviously, the presence or absence of motor activity is desirable.
Note: the "commitment of" work, and sometimes hobbies, have a greater impact on the total caloric needs than the presence or absence of desirable ones. It is different for professional sportsmen.
To be defined as desirable, however, physical exercise should have a more or less determined energy commitment.
On an empirical level this would correspond to a weekly training volume between> 3 hours and up to 4 or maximum 5 (depending on the intensity) - regardless of the number of sessions, although generally these are from 2 to 5 - and to an "intensity (and possible density) obviously relative (inversely proportional to the volume), but more or less average.
Beyond this training load threshold, the "desirable physical activity acquires a typically" sporting "metabolic commitment, which should be calculated with greater accuracy. There are specific calculation tables designed to obtain this value, which will then be added to the remaining daily expenditure to obtain the total / day.
