A comparative study of the effect of two anaerobic efforts (phosphate-lactate) on heart rate and the percentage of hemoglobin saturation with oxygen for children aged (11-12) years

Abstract

The aim of the current research is to identify the differences in the values ​​of hemoglobin saturation with oxygen and heart rate for children aged (11-12) years between the two stresses (phosphate - lactate) in the post-measurement. The researchers assumed that there were no differences in the values ​​of hemoglobin saturation with oxygen and heart rate for children aged (11-12) years between the two efforts (phosphate - lactate) in the post-measurement. The researchers used the descriptive approach using the comparative method for its suitability and the nature of the research. The research sample included children aged (11-12) years, numbering (20) children for the academic year 2023/2024 in Nineveh Governorate, who represent the fifth and sixth grades of Al-Azd Primary School for Boys in the city of Mosul. They were selected randomly from among those who were in good health, and the consent of the students’ parents was obtained to participate in the (main experiment). Homogeneity was carried out among the study sample members in the variables of age, height, and mass. The researchers also used technical tests and measurements as means of collecting data. The final experiment was conducted for the period from (4/14/2024 to 4/18/2024), which included measuring the study variables at rest and immediately after the end of physical effort (for phosphate effort). After (4) days, the same measurements were performed using (lactate effort). The researchers used the following statistical methods (arithmetic mean, standard deviation, coefficient of variation, T-test for two related samples, T-test for two independent samples).