Komei Hattori
Datos Biográficos
| ID | 85037 |
|---|---|
| NOMBRE | Komei Hattori |
| NOMBRES | Komei |
| APELLIDO | Hattori |
| FIRMA | HATTORI K |
| AFILIACIONES | Ibaraki University |
| VERIFICADO | No |
| TOTAL DE OBRAS | 18 |
| TOTAL DE CITAS | 8 |
| TOTAL COMO AUTOR | 18 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1971 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2019 |
| ÍNDICE H | 1 |
The secular trend in body proportion changes among Japanese adolescents using a body proportion chart method
戦後日本人の身長が年年増加を続けたことは多くの時代差研究で明らかにされてきた。この伸長化の傾向は1994年から2001年あたりをピークに終了したとされ,高径のプロポーションは今後変わることはないだろうという指摘がされている。本研究は,学校保健統計調査報告書(文部科学省)のデータを用いて,成人値に最も近い17歳の日本人青年における座高と下肢長の変化を戦後から現代までBody Proportion Chart法によって観察した。このチャート法により,身長,座高,下肢長および座高に対する下肢長の比の経年変化を同時に観察した。その結果,現代の青年は身長の増加は止まったが,座高の増加と下肢長の減少が同期してみられることから,高径のプロポーションは今なお変化していることが明らかになった。この経年変化は,対象集団の中で座高が高くなる資質をもった人の割合が増加したことに起因する可能性がある。それをもたらした要因として,対象集団の親世代において,長胴傾向にある女性で出産割合がより高いことなどが推測された。…
Body proportion chart for evaluating changes in stature, sitting height and leg length in children and adolescents
The results highlight the usefulness of the Body Proportion Chart method for identifying changes in body proportions during adolescence
Age change of power in weight/height p indices used as indicators of adiposity in japanese
Data from the Statistical Report on School Health and Hygiene were used to identify the entire process of the power of height p in the weight-for-height index W/H(p). The appropriate power of height p was determined by clarifying the allometric relationship, giving an index of relative weight, which is highly correlated with weight but uncorrelated with height for age. The procedure is equivalent to fitting a straight line on a log-log scale to t…
Hierarchical differences in body composition of professional Sumo wrestlers
The body composition of 36 professional Sumo wrestlers and 39 collegiate male students were assessed densitometrically. The means of body weight, BMI and %fat for Sumo wrestlers were 117.1 kg, 36.5 and 26.2%, extraordinarily large compared with untrained men (p < 0.001). Results of the analysis of variance of divisions of Sumo wrestlers revealed significant differences in body weight, fat-free mass, fat mass, BMI, fat-free mass index (FFM/height2…
Assessment of body composition by using a new chart method
The body mass index (BMI, weight/height2), is commonly used as a simple and valid way of assessing body composition. However, the significance of the BMI is not clear, since body mass is composed of two main components: fat-free mass (FFM) and fat mass (FM), each with different densities. In order to graphically present body composition as a quantitative measure, a chart based on the fat-free mass index (FFMI, FFM/height2) and fat mass index (FMI…
Determination of body volume in normal adults and in patients with cerebral palsy by the sulfur hexafluoride (SF 6 ) dilution technique
This study sought to establish body volume measurement by the sulfur hexafluoride (SF 6 ) dilution technique and to assess the body composition of healthy subjects and patients with the complications of cerebral palsy and mental retardation. Sixty‐six healthy males and females ranging in age from 18 to 41 years and 10 patients with the complications ranging in age from 23 to 34 years participated in the study. The SF 6 dilution method determines …
Is the Pair-wise Contrast of Fatfolds Significant in Determining Body Composition
Regional variability of skinfold thickness differs from individual to individual. This may be affected by differences in total body composition. If so, individual's fat distribution patterns may contribute to the prediction of body composition. On this premise, the regression relationships between body composition and fat distribution patterns which is represented by the pair-wise contrast of fatfolds, were analyzed by the quantification method o…
Validity of Bioelectrical Impedance Equations for Estimating Fat-free Mass in Japanese Males
The present study validated the bioelectrical impedance analysis (BIA) method for estimating fat-free mass (FFM). Forty-five male university students served as subjects. Four equations that have been recently proposed for predicting FFM from resistance by BIA and anthropometrical indicators were compared with values obtained from underwater weighing. Cross validation analyses included examination of the constant error (CE), standard error of esti…
Fat patterning of adolescents
The relationship between fatfold thickness and fat mass of 101 male and 66 female adolescents (10–16 yr) was examined with the allometric equation y = bx a . Body composition was assessed by underwater weighing and 5 fatfolds were measured: triceps, subscapular, suprailiac, abdominal, and thigh. Percent body fat ranged from 4.9% to 56.1%. The log of each fatfold thickness was plotted versus the log of fat mass. All the relationships were linear a…
Application of the DLT method to anthropometry
The direct linear transformation (DLT) method was applied as a tool in the field of anthropometry. Using four video cameras which are arranged surrounding the subjects, we attempted to detect the reference points in the trunk of body and produce three dimensional coordinates of the points by the DLT method. The average error associated with the x, y, and z coordinates was less than 1%. After getting the three dimensional coordinates of reference …
Body Composition and Lean Body Mass Index for Japanese College Students
Lean body mass (LBM) and fat mass (FM) are two major components of body composition and when totalled equal body mass. Body mass index (BMI) as represented by weight/height2, has proven to be both a simple and valid way of assessing body composition. However, the significance of the index is not clear since body weight is composed of two main components: LBM and FM, each of whose densities show distinct differences.In order to present the body co…
Subcutaneous fat distribution pattern in Japanese young adults
日本人青年男女の皮下脂肪の相対的分布パターンが主成分分析法によって検討された。第1主成分には肥満度の成分が抽出され,第2主成分には体幹部と四肢部が対比をなす皮下脂肪分布のパターンが男女とも出現した。第3主成分は体の上部と下部が対比するものと解釈されたが固有値は小さかった。体幹四肢の分布パターンは分析する項目数が変化しても安定して抽出され,多くの人種や性に共通する基本的な皮下脂肪分布パターンであると推察された。主成分スコアを求めることで個人毎の皮下脂肪分布パターンが確定され,その結果は成人病の危険因子に関する新たな情報となりうる
Fat patterning of adolescents
Fat patterning of 110 adolescent males and 80 adolescent females was determined by principal components analysis of five skinfolds (triceps, subscaplular, iliac, abdominal and thigh). Densiometrically determined body fatness was employed to create two groups: obese (greater than 30% fat) and non-obese (less than 30% fat). Three fat patterning components emerged: trunk-extremity, upper-lower trunk and medial-lateral abdomen. The first two componen…
Tubular hand bone growth during the latter half of the prenatal period
The growth of the 19 tubular hand bones from fetal months 5 to 9 was studied by the allometric method. The hand bones were carefully dissected under a low power stereoscopic microscope. The length and breadth of all bones was found to be monophasic in relation to crown‐rump length. In general, maximum bone and ossified shaft lengths in the same row group demonstrate similar allometric coefficients. The specific growth rate of ossified shaft lengt…
Relationship of fat patterning to coronary artery disease risk in obese adolescents
Fatness and fat patterning of 27 male and 33 female obese adolescents were identified by principal‐components analysis of five skinfolds (triceps, subscapular, iliac, abdominal, and thigh). Correlations were computed between the component scores, based on the eigen vectors, and anthropometric and physiological variables. Overall fatness, component I, was highly correlated with all anthropometric and body composition variables. Also, component I s…
Age Change of Allometry Coefficients in Japanese
Though allometry formula (y=bxα) is not influenced directly by the age, character of the age group sampled is predicted to be reflected on allometry coefficient. So the age changes of the allometry coefficient of body weight, chest girth and sitting height against stature were analyzed on the both sexes from 6 to 14 year-old. As allometry coefficients in each age were various even within the same stature class and show directional changes with ag…
Studies on the Relative Variation of Chest Dimension at 18 Years Old
In this paper, we consider relative variation of some chest dimensions at youth by the analysis of the absolute size values and allometry. Because few reports have ever been published related to this problem.The materials were 18 years old Japanese students and consists of 236 males and 83 females. We took the girth of chest at rest (GCR) on x-axis and the others on y-axis. All subjects were devided into several groups according to their measurin…
Allometric Analysis of Variation on Body Dimensions At 18 Years Old
In order to research the proportion of anthropometric indicators on the groups classified according to the stature, measurements were taken of 28 items of 565 Japanese males and females at 18 years old.So emphasis was given to the demonstration of allometric relationships in the variation of the items.Stature was taken on abscissa and the others on ordinate. As the linearity test of the regression lines were statistically significant at 1% level,…
Relationship of fat patterning to coronary artery disease risk in obese adolescents
Fatness and fat patterning of 27 male and 33 female obese adolescents were identified by principal‐components analysis of five skinfolds (triceps, subscapular, iliac, abdominal, and thigh). Correlations were computed between the component scores, based on the eigen vectors, and anthropometric and physiological variables. Overall fatness, component I, was highly correlated with all anthropometric and body composition variables. Also, component I s…
Studies on the Relative Variation of Chest Dimension at 18 Years Old
In this paper, we consider relative variation of some chest dimensions at youth by the analysis of the absolute size values and allometry. Because few reports have ever been published related to this problem.The materials were 18 years old Japanese students and consists of 236 males and 83 females. We took the girth of chest at rest (GCR) on x-axis and the others on y-axis. All subjects were devided into several groups according to their measurin…
Allometric Analysis of Variation on Body Dimensions At 18 Years Old
In order to research the proportion of anthropometric indicators on the groups classified according to the stature, measurements were taken of 28 items of 565 Japanese males and females at 18 years old.So emphasis was given to the demonstration of allometric relationships in the variation of the items.Stature was taken on abscissa and the others on ordinate. As the linearity test of the regression lines were statistically significant at 1% level,…
Age Change of Allometry Coefficients in Japanese
Though allometry formula (y=bxα) is not influenced directly by the age, character of the age group sampled is predicted to be reflected on allometry coefficient. So the age changes of the allometry coefficient of body weight, chest girth and sitting height against stature were analyzed on the both sexes from 6 to 14 year-old. As allometry coefficients in each age were various even within the same stature class and show directional changes with ag…
Tubular hand bone growth during the latter half of the prenatal period
The growth of the 19 tubular hand bones from fetal months 5 to 9 was studied by the allometric method. The hand bones were carefully dissected under a low power stereoscopic microscope. The length and breadth of all bones was found to be monophasic in relation to crown‐rump length. In general, maximum bone and ossified shaft lengths in the same row group demonstrate similar allometric coefficients. The specific growth rate of ossified shaft lengt…
Relationship of fat patterning to coronary artery disease risk in obese adolescents
Fatness and fat patterning of 27 male and 33 female obese adolescents were identified by principal‐components analysis of five skinfolds (triceps, subscapular, iliac, abdominal, and thigh). Correlations were computed between the component scores, based on the eigen vectors, and anthropometric and physiological variables. Overall fatness, component I, was highly correlated with all anthropometric and body composition variables. Also, component I s…
Subcutaneous fat distribution pattern in Japanese young adults
日本人青年男女の皮下脂肪の相対的分布パターンが主成分分析法によって検討された。第1主成分には肥満度の成分が抽出され,第2主成分には体幹部と四肢部が対比をなす皮下脂肪分布のパターンが男女とも出現した。第3主成分は体の上部と下部が対比するものと解釈されたが固有値は小さかった。体幹四肢の分布パターンは分析する項目数が変化しても安定して抽出され,多くの人種や性に共通する基本的な皮下脂肪分布パターンであると推察された。主成分スコアを求めることで個人毎の皮下脂肪分布パターンが確定され,その結果は成人病の危険因子に関する新たな情報となりうる
Fat patterning of adolescents
Fat patterning of 110 adolescent males and 80 adolescent females was determined by principal components analysis of five skinfolds (triceps, subscaplular, iliac, abdominal and thigh). Densiometrically determined body fatness was employed to create two groups: obese (greater than 30% fat) and non-obese (less than 30% fat). Three fat patterning components emerged: trunk-extremity, upper-lower trunk and medial-lateral abdomen. The first two componen…
Application of the DLT method to anthropometry
The direct linear transformation (DLT) method was applied as a tool in the field of anthropometry. Using four video cameras which are arranged surrounding the subjects, we attempted to detect the reference points in the trunk of body and produce three dimensional coordinates of the points by the DLT method. The average error associated with the x, y, and z coordinates was less than 1%. After getting the three dimensional coordinates of reference …
Body Composition and Lean Body Mass Index for Japanese College Students
Lean body mass (LBM) and fat mass (FM) are two major components of body composition and when totalled equal body mass. Body mass index (BMI) as represented by weight/height2, has proven to be both a simple and valid way of assessing body composition. However, the significance of the index is not clear since body weight is composed of two main components: LBM and FM, each of whose densities show distinct differences.In order to present the body co…
Fat patterning of adolescents
The relationship between fatfold thickness and fat mass of 101 male and 66 female adolescents (10–16 yr) was examined with the allometric equation y = bx a . Body composition was assessed by underwater weighing and 5 fatfolds were measured: triceps, subscapular, suprailiac, abdominal, and thigh. Percent body fat ranged from 4.9% to 56.1%. The log of each fatfold thickness was plotted versus the log of fat mass. All the relationships were linear a…
Determination of body volume in normal adults and in patients with cerebral palsy by the sulfur hexafluoride (SF 6 ) dilution technique
This study sought to establish body volume measurement by the sulfur hexafluoride (SF 6 ) dilution technique and to assess the body composition of healthy subjects and patients with the complications of cerebral palsy and mental retardation. Sixty‐six healthy males and females ranging in age from 18 to 41 years and 10 patients with the complications ranging in age from 23 to 34 years participated in the study. The SF 6 dilution method determines …
Is the Pair-wise Contrast of Fatfolds Significant in Determining Body Composition
Regional variability of skinfold thickness differs from individual to individual. This may be affected by differences in total body composition. If so, individual's fat distribution patterns may contribute to the prediction of body composition. On this premise, the regression relationships between body composition and fat distribution patterns which is represented by the pair-wise contrast of fatfolds, were analyzed by the quantification method o…
Validity of Bioelectrical Impedance Equations for Estimating Fat-free Mass in Japanese Males
The present study validated the bioelectrical impedance analysis (BIA) method for estimating fat-free mass (FFM). Forty-five male university students served as subjects. Four equations that have been recently proposed for predicting FFM from resistance by BIA and anthropometrical indicators were compared with values obtained from underwater weighing. Cross validation analyses included examination of the constant error (CE), standard error of esti…
Assessment of body composition by using a new chart method
The body mass index (BMI, weight/height2), is commonly used as a simple and valid way of assessing body composition. However, the significance of the BMI is not clear, since body mass is composed of two main components: fat-free mass (FFM) and fat mass (FM), each with different densities. In order to graphically present body composition as a quantitative measure, a chart based on the fat-free mass index (FFMI, FFM/height2) and fat mass index (FMI…
Hierarchical differences in body composition of professional Sumo wrestlers
The body composition of 36 professional Sumo wrestlers and 39 collegiate male students were assessed densitometrically. The means of body weight, BMI and %fat for Sumo wrestlers were 117.1 kg, 36.5 and 26.2%, extraordinarily large compared with untrained men (p < 0.001). Results of the analysis of variance of divisions of Sumo wrestlers revealed significant differences in body weight, fat-free mass, fat mass, BMI, fat-free mass index (FFM/height2…
Age change of power in weight/height p indices used as indicators of adiposity in japanese
Data from the Statistical Report on School Health and Hygiene were used to identify the entire process of the power of height p in the weight-for-height index W/H(p). The appropriate power of height p was determined by clarifying the allometric relationship, giving an index of relative weight, which is highly correlated with weight but uncorrelated with height for age. The procedure is equivalent to fitting a straight line on a log-log scale to t…
Body proportion chart for evaluating changes in stature, sitting height and leg length in children and adolescents
The results highlight the usefulness of the Body Proportion Chart method for identifying changes in body proportions during adolescence
The secular trend in body proportion changes among Japanese adolescents using a body proportion chart method
戦後日本人の身長が年年増加を続けたことは多くの時代差研究で明らかにされてきた。この伸長化の傾向は1994年から2001年あたりをピークに終了したとされ,高径のプロポーションは今後変わることはないだろうという指摘がされている。本研究は,学校保健統計調査報告書(文部科学省)のデータを用いて,成人値に最も近い17歳の日本人青年における座高と下肢長の変化を戦後から現代までBody Proportion Chart法によって観察した。このチャート法により,身長,座高,下肢長および座高に対する下肢長の比の経年変化を同時に観察した。その結果,現代の青年は身長の増加は止まったが,座高の増加と下肢長の減少が同期してみられることから,高径のプロポーションは今なお変化していることが明らかになった。この経年変化は,対象集団の中で座高が高くなる資質をもった人の割合が増加したことに起因する可能性がある。それをもたらした要因として,対象集団の親世代において,長胴傾向にある女性で出産割合がより高いことなどが推測された。…
Mathematics (12 obras) · Medicine (11 obras) · Biology (10 obras) · Body Composition Measurement Techniques (9 obras) · Body weight (9 obras) · Internal Medicine (8 obras) · Statistics (8 obras) · Allometry (6 obras) · Body mass index (6 obras) · Demography (5 obras)