THE DETERMINATION OF THE RELATIONSHIP BETWEEN THE WEIGHT AND AGE OF MALE AND FEMALE STUDENTS IN DELTA STATE UNIVERSITY, ABRAKA. A RESEARCH PROJECT MATERIAL ON PHYSICS
CHAPTER ONE
INTRODUCTION
BACKGROUND OF STUDY
Gender, age and weight are the fundamental indices of human growth, which are strongly affected by various factors such as genetic effects, race, nutrition, congenital disease, and so on. Anthropometric measures have been widely used for body weight classification in humans. Basically, the weight and age distributions for different sex are most widely used in the assessment of the health status and various physiological processes as well as for many other research and commercial purposes. The weight and age relationship from birth through maturity is represented by three segments or physiologic age intervals-infancy, childhood and adulthood (Gross et al., 2005).
The beginning of biological growth and development during adolescence is signified by the onset of puberty, which is often defined as the physical transformation of a child into an adult. A myriad of biological changes occur during puberty including sexual maturation, increases in height and weight, completion of skeletal growth accompanied by a marked increase in skeletal mass, and changes in body composition. The succession of these events during puberty is consistent among adolescents; however, there may be a great deal of deviation in the age of onset, duration, and tempo of these events between and within individuals (Wong et al., 1995).
Body shape or body weight is an important element of the intricate mechanism of one’s own identity. Weight is really the ratio of lean body mass to fat body mass. The relationship between the indices and physical conditions of weight and sex of an individual has been extensively studied by Eknoyan, (2008) with an aim to establish an anthropometric measurement for body mass index (BMI). The weight and age of an individual can be useful in determining its’ center of mass which is nearly the geometric center of a person and this differs across males and females of different age group. More so, there is a growing clinical interest in body composition between males and females most especially their percentage body fat due to the evidence that links body composition with health risks and the development of certain diseases.
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