Influence of reduced calorific diet on energy circulation at rest and during physical strain and on some body composition indexes

The energy is necessary to a body for metabolism, work of cellular and mechanical work, also respiration, heart activity and muscular performance. One third of energy consumption is related with physical activity when different exercises and other forms of physical activity are performed. It is very important to maintain energy balance. Thus a problematic question arises if a reduced caloric diet has any influence on body composition and energy circulation at rest and during physical strain. The purpose of analysis is to determine the influence of reduced calorific diet on energy circulation at rest and during physical strain and on some body composition indexes. Seeking this objective the following tasks were set: 1. To determine the changes in testees’ energy consumption at rest and during physical strain before and after the influence of reduced caloric diet. 2. To determine the kind of women’s physical activity during direct work and in free time. 3. To determine the changes in body composition (BMI, hips and waist proportion) rates before and after the influence of reduced caloric diet. 36,2 ± 5,7 year-old women participated in the research, pickup (n) 9. An indirect calorimetric method was applied to determine the testees’ metabolism at rest and during physical strain analyzing the ratio of expiratory gas. The sebaceous skin folds and the ratio of waist and hips were measured, the testees were weighted and their body mass index was calculated determining the changes of body composition before and after reduced caloric diet. The energy circulation at rest for women who participated in the experiment after a reduced caloric diet applied three days a week within the period of 47 days has not changed. The energy circulation did not change during physical strain; the ratio between the consummated energetic substrates also did not change. The energy consummated from fat during physical strain before the experiment comprised 70,4 percents of total consummated energy, whereas after the experiment it comprised 70 percents. The energy from carbohydrates before the experiment comprised 17,8 percents, and after the experiment - 17,7 percents. The rates of body composition (BMI; waist and hips proportion) after the reduced caloric diet change. Waist and hips proportion varied not significantly. BMI decrease from 27,3 kg/m2 to 26 kg/m2. BMI decrease statistic importantly