***Let's see how to evaluate Nutrition first (by calculating nutrition and energy value):
REFER TO DATA SHEETS FOR INGREDIENTS
Another alternative to know and therefore calculate the nutritional values of your products is to refer to the data sheets of each ingredient. These sheets must be sent to you on request by your suppliers. This is a legal obligation. The disadvantage of this method is that the cards are sometimes incomplete or the units of value not adapted ... This greatly complicates the work ...
CALCULATE NUTRITIONAL AND ENERGY VALUES
It remains to calculate the nutritional values of the overall product thanks to the nutritional values of each ingredient. To do this we must weight the participation of each ingredient according to the proportions present in the product.
***Now, let's see how to evaluate the exercises (by The Metabolic Equivalent of Task (MET)):
The Metabolic Equivalent of Task (MET) is a method of measuring the intensity of physical activity and energy expenditure. This is an indicator that can vary depending on the training and the shape of each. But, it allows estimating approximately the number of calories burned during an effort.
Resting energy consumption (basal metabolism, MB) equals 1 MET. This corresponds to an oxygen consumption of 3.5 ml/kg of body weight/minute.
The formula for calculation of the energetic consumption is thus the following one (one asks a little concentration to those whose word equation gives some buttons!):
Energy consumption/min = MET number x 3.5 x body weight / 200, and then multiply by the number of minutes of practice.
***And finally, body composition:
The body composition corresponds to the analysis of the human body (or animal) in compartments. These have a particular interest depending on the medical discipline considered. For example in Sports Medicine, measuring weight is not enough to understand how to improve the performance of a limb segment during a specific exercise. Determining the muscle mass of this segment is more rational. In the same way, during a weight reduction strategy in an obese, it may be interesting to want to target a loss of fat mass and to spare the muscle mass or certain organs. In this case, measuring the weight is not enough. On the one hand, it is necessary to consider important compartments in nutrition, and on the other hand, the methods to measure them.
METHOD OF BODILY COMPOSITION BY HYDRO-DENSITOMETRY.
Considered as the reference method, based on the Archimedes Principle to determine body density (Density = Mass / Volume). Weight and body volume are determined by completely immersing the body in a liquid. An equation is then used to convert the body density to% fat mass.
The reference method is Hydro-densitometry. Its cost and the lack of availability do not allow it to be used in the longitudinal monitoring of athletes, with the exception of particular pathological contexts.
METHOD OF SKIN FOLDING.
Based on the principle that the thickness of subcutaneous fat tissue is representative of total body fat, and would correspond to 50% to 60% of total body fat. Several methods exist at 3, 4, or 6-fold, using many equations.
The skin fold method has been validated by numerous studies in comparison with the reference methods. However, variations are observed taking into account the number of folds measured and the type of equation used. The skin fold method is not suitable for the obese population.