A Fundamental Study of the Major Influential Variables Affecting Physical Growth at Infancy ( I )

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  • 幼児の身体発育に関連する主要因の選定に関する基礎的研究(第1報)
  • 幼児の身体発育に関連する主要因の選定に関する基礎的研究-1-
  • ヨウジ ノ シンタイ ハツイク ニ カンレンスル シュヨウイン ノ センテイ

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It is understood that physical growth is the result of interaction between inherent and acquired variables. In this paper, as many variables as possible were measured which had been referred to in previous literature, and these measured variables were all assumed to be variables influencing physical growth. Some of the more important variables influencing physical growth were brought to light here. Also the characteristics of the variables that contributed to physical growth at infancy and the variables relating also to physical growth were investigated. The results obtained were as follows : 1) ( a ) Nine variables were selected as the most important variables influencing physical growth at infancy in males : * deviant food habits * nutrition from mother's milk * degree of consumption of school lunch * mineral nutrition content of diet * protein nutrition content of diet * age (in months) * level of father's income * whether or not both parents working * degree of meat consumption ( b ) Nine variables were selected as most important for females : * level of father's income * fat nutrition content of diet * attitude towards physical activity * deviant food habits * degree of meat consumption * period of pregnancy * number of hours a day of sleep * father's highest level of education * age (in months) 2) The most important variables affecting physical growth at infancy in both males and females were 9 variables, that is : deviant food habits, level of father's income, degree of meat consumption, father's highest level of education, degree of consumption of school lunch, nutrition from mother's milk, age in months, attitude towards physical activity and father's job. 3) The variables that were found most important to physical growth at infancy did not always influence height, body weight, chest girth and sex, respectively. Therefore only certain variables have strong influence in some cases in the process of the physical growth. 4) On the other hand, there were very important variables also found to be related to physical growth. In this case, there were 9 significantly related variables common to both male and female infants but different in degree of influence.

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