ABSTRACT
We propose a novel approach to the recognition of particular classes of non-conventional events in signals from phase-sensitive optical time-domain-reflectometry-based sensors. Our algorithmic solution has two main features: filtering aimed at the de-nosing of signals and a Gaussian mixture model to cluster them. We test the proposed algorithm using experimentally measured signals. The results show that two classes of events can be distinguished with the best-case recognition probability close to 0.9 at sufficient numbers of training samples.
Subject(s)
Adaptation, Physiological , Environmental Health , Health Status , Hygiene , Physical Fitness , Adolescent , Age Factors , Child , Humans , ResearchABSTRACT
The paper outlines the hygienic principles of standardizing exercises in schoolchildren's physical training. Proceeding from the optimal (proper) daily body's energy requirements, including organized physical activities, the authors propose a method of their determination. The proper values of daily energy requirements are defined from their ratio to rated maximum values by the maximum oxygen consumption. This ratio is independent of age and sex and accounts for about 20%. While comparing the actual daily energy uptake with the proper ones, their deficiency and excess is determined, which will make the optimum individual and group-specific (age-sex) standardization of exercises in schoolchildren's physical training.
Subject(s)
Energy Metabolism , Exercise , Physical Education and Training , Physical Exertion , Adolescent , Age Factors , Calorimetry , Child , Female , Humans , Male , Oxygen Consumption , Sex FactorsSubject(s)
Adolescent Medicine/trends , Child Health Services/trends , Health Services Research/trends , School Health Services/trends , Adolescent , Adolescent Medicine/standards , Child , Child Health Services/standards , Female , Health Services Research/standards , Humans , Male , Quality of Health Care , School Health Services/standards , USSRABSTRACT
The research specific to the changes in body functioning under the effect of various loads of cyclic character was carried out. The results thus obtained made it possible to analyze sex- and age-specific characteristics of body functional capacities of schoolchildren aged 6-15 (yearly characteristics). It was pointed out that by 13-14 years the schoolchildren, primarily girls, lost some of their adaptation capacity to physical load. The problem could be solved due to additional physical training activities aimed at the development of endurance, the trait being of primary importance for health promotion in schoolchildren.
