If anyone would like to study philosophy, then the above topic is an excellent basis for creating several dozen pages of studies, scientific deliberations.Although it is impossible to answer this question. Subsequent research brings contradictory results, and many depends on weight, age, hormonal profile, lean body mass, whether proteins are consumed by themselves or in the environment of fats (change in kinetics).
If proteins are supplied with glucose or with fats and glucose, there are completely different reactions. The proportions of macronutrients and the time of meal administration are also important (other hormonal reactions occur in the morning, others in the evening, insulin sensitivity is highest in the morning, the smallest in the evening). In obese women (BMI 37.1) meal (1672 kJ or ~ 400 kcal) with 55% carbohydrates, 15% protein and 30% fat resulted in different reactions than the one containing 40% carbohydrates, 30% protein and 30% fat. After a meal with 30% protein, fat oxidation was higher than after a meal with 15% protein (and more carbohydrates) – both in the group of obese and leaner women (BMI 20.6). In turn, the rate of glucose oxidation did not differ between the groups. 5 Obese women with fasting oxidized many more fatty acids.
In parenteral nutrition in newborns
- protein + glucose + fats = greater protein turnover, greater protein breakdown and higher rate oxidation of amino acids compared to the administration of the same protein together with glucose and fats, in turn the rate of protein synthesis did not differ in both cases,
- protein + glucose + = greater protein turnover, greater protein breakdown and higher amino acid oxidation rate for feeding the same protein together with glucose and fats,
in turn the rate of protein synthesis did not differ in both cases
Of course, the above data relate to feeding babies, but I would like to point out that the faults apply even to bodybuilders. For example, a nitrogen balance is often used as a marker. Bodybuilders in studies MA Tarnopolsky et al 2 consuming 2.8 g of protein per kg of body weight had excellent results in terms of nitrogen balance (there was an excess of 12 to 20 g of nitrogen per day). The nitrogen balance compares the daily supply of nitrogen available to the body in the form of amino acids (proteins) with daily losses of this element. If the nitrogen balance had a direct effect on the amount of muscle protein, they should gain from 300 to 500 g of dry body weight per day (assuming that 75% in tissues would be water). Of course, similar changes are impossible (and you should be happy if such increase in lean body mass occurs within a month of training).
In conclusion, Moore 6 administered proteins to young 24 training men. They trained 4-6 times a week. They performed leg training in experimental conditions – 5 series with a weight of 60-70% of the maximum, and then 4 sets of 10 repetitions with a weight of 80% of the maximum.
They were given protein within 12 h after training
some men received 80 g of whey protein isolate (40 g of WPI was delivered every 6 h), in the second the WPI group was administered differently 20 g every three hours (4 servings of 20g per 12h). nof groups and received 10 g WPI every 1.5 h (8 portions of protein within 12 h),
- some men received 80 g of whey protein isolate (40 g WPI served every 6 h),
- in the second WPI group, 20 g were given differently every three hours (4 portions per 20 g in 12 h).
- the third group received 10 g WPI every 1.5 hours (8 portions of protein within 12 h),
- the largest muscle protein synthesis occurred with divided protein administration (40 g every six hours), slightly lower in the group receiving 20 g protein every three hours, no muscle protein in the group receiving 20 g of protein every three hours was smaller compared to the administration of 10 g portions of protein every 1.5 h or 40 g every 6 h, so in terms of net protein balance it was more beneficial to administer 20 g of protein every three hours
- the largest muscle protein synthesis occurred with divided protein administration ( 40 g every six hours), was slightly lower in the group receiving 20 g of protein every three hours,
- the breakdown of muscle proteins in the group receiving 20 g of protein every three hours was smaller compared to the administration of 10 g protein portions every 1.5 hours or 40 g every 6 h
- therefore ultimately in terms of net protein balance more preferred to administer 20 g protein every three hours
- the most preferred administration proved to be 20 g of WPI every three hours. Of course, the results obtained in individual groups as part of the Moore DR 6 experiment slightly differ, but on a scale of 3, 6 or 12 months of training may be significant.
The most favorable was the administration of 20 g WPI every three hours. Of course, the results obtained in individual groups as part of the Moore DR 6 experiment differ slightly, but on a scale of 3, 6 or 12 months of training may be significant.