PHYSICAL HEALTH OF YOUNG AND MIDDLE AGE WOMEN UNDER INFLUENCE OF STEP- AEROBICS EXERCISES Masliak I.P. Kharkiv State Academy of Physical Culture

Purpose: to determine the degree of step-aerobics exercises’ influence on 20-35 years age women’s health. Material: in the research 28 women of 20-35 years old age participated. Anthropometric indicators, heart beats rate in rest and after load (20 squats for 30 sec.), blood pressure, vital capacity of lungs, hand dynamometry were registered. Results: level of physical health has been determined; influence of step-aerobics on women’s health has been found; age differences in the tested indicators have been analyzed. It was found out that step-aerobic trainings influence greatly on the following indicators: body mass, circumferential sizes and cardio vascular system; on functioning of respiratory system, strength of hand’s flexors and regulation of 31-35 years age women’s cardio-vascular system. Conclusions: application of step-aerobic exercises positively influenced on health of 20-35 years old women.

Analysis of repeated results of cardio-vascular system showed improvement of heart beats rate and systolic blood pressure in both age groups (p<0.05;0.01).For example, improvement of HBR in 1 st group was 4.8%; in 2 nd group -12.6%;BP -2.6 and 5.2%.Thus, the highest changes took place in group of 31-35 years old women.
It was detected that vital capacity of lings in both groups significantly and confidently improved (p<0.01; 0.001).Increment of indicators was: 20.6% -in 1 st group and 20.0% -ion 2 nd group.Thus, the most significant changes took place in group of 20-30 years old women.
Analyzing indicators of hand flexors' strength we found that in both tested groups results improved after experiment.However, differences were confident only in indicators of 1 st group (p<0.05;0.01).For example, increment of right hand dynamometry indicators in 1 st group was 12.0%, left hand -8.5%; in second group -4.7% and 5.7% accordingly.
Thus the most significant increment of dynamometry of both hands took place in group of 20-30 years old women.
Analysis of indicators of heart beats rate restoration after definite dosed load sowed that results of both groups' women improved confidently (p<0.05,0.01).Indicators' improvement in 1 st group was 36.5%, and in second -32.0%.Thus, indicators of cardio-vascular system's regulation changed most significantly in 20-30 years old women.
Analysis of repeated physical health indicators in age aspect did not reveal any substantial changes in comparison with initial data.Exclusions were: hips circumference indicators; systolic blood pressure and left hand dynamometry.Results of 2 nd group's women became better after experiment than in 1 st group.However, these differences are not statistically confident (p>0.05).
Comparison of experimental results with standard data [9] (see table 1) shows that in both groups' women physical health level increased and correspond to level "below average".
Thus, results of the conducted researches witness about positive influence of step-aerobics trainings on health of 20-35 years' age women.It was found that step-aerobics influences on the following indicators: -body mass and cardio-vascular system of 31-35 years' age women; -functioning of respiratory system, strength of hand flexors and regulation of cardio-vascular system of 20-30 years' age women.

Discussion
Analysis of scientific-methodic literature showed that there is a number of works, devoted to influence of different kinds of fitness on health condition, physical fitness, mental and physical workability of different age contingent [1,12,[16][17][18]21].
On the base of this analysis and generalization of the results of our research we expanded data [3,[5][6][7]11, 20] about influence of different kinds of fitness on women's organism.We supplemented data [4,8,10] about step-aerobics positive influence on human organism.For the first time we determined influence of step-aerobics exercises оn physical health of 20-35 years old women.The most sensitive to step-aerobics exercises parameters of physical health have been detected.The most favorable age periods for development of certain physical health indicators under influence of stepaerobics have been also determined.
Conclusions: 1.Initial data of physical health parameters permitted to determine "low" level of 20-35 years' age women's health and they do not differ in age aspect.2. Application of worked out by us step-aerobics exercises in trainings positively influenced on physical health of young and middle age women.Their health level improved from "low" to "below average".31-35 years old women demonstrated substantial changes of body mass indicators, circumferential sizes and functioning of cardio-vascular system.In 20-30 years old women indicators of respiratory system, strength of hand flexors and cardio-vascular system's regulation noticeable improved.Further researches in this direction can be realized by means of determination of step-aerobics influence on physical workability of young and middle age women.

Table 1
Physical health of 20-35 years old women before and after experiment Notes: VCL-vital capacity of lings; HBR -heart beats rate; BP -blood pressure.

Table 2
Physical health indicators of 20-35 years old women before and after experiment Notes: VCL-vital capacity of lings; HBR -heart beats rate; BPsyst -systolic blood pressure.