[Relationship between body heights of parents and children in the 1st 6 years of life. II. Standards for evaluation of body heights in children].
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Results for “Body Height”
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[Reconstruction of body height from the size of long bones as well as the influence of aging and acceleration on body height and vertical proportions in man].
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[Analysis of the occurrence of degenerative changes in the spinal column in military tank personnel in relation their body height].
The relation of tankers' body height to the level of their spinal column degenerative changes, as well as the frequency of painful vertebral syndrome, have been examined to note the effect of constrained body position on the onset of vertebral syndrome. Fifty examinees, tank commanders, divided into 2 body height groups, were included in the study. There were 25 examinees with body height up to 1,750 mm in group A and 25 examinees with body height > 1,760 mm in group B. The average body height of the studied population was 1,752 mm-1,716 mm in group A and 1,788 mm in group B. The investigation established no significant difference between studied groups - neither in degenerative changes on spinal column frequency, nor in painful vertebral syndrome frequency, which favors the conclusion that the total studied population had inappropriate body height for tank conditions, and therefore it reacted homogeneously to the tested harmful environment.
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[Secular trend in body height since the Neolithic period].
The body height of children and adults is estimated on the basis of skeleton material from the middle Elbe-Saale region since the Neolithic period. The men's body height was calculated according to Breitinger (1938), the women's body height according to Bach (1965), and the children's body height according to Telkkä et al. (1962). These estimates are compared with the mean body height of living persons from the adult population and of Jena schoolchildren, respectively. These are the following essential results: 1. Since 7000 years ago changes of body height can be observed. There was an increase of the mean body height from the Neolithic period until the Bronce age. In the A.D. era no clear changes of the average values can be found until about the 12th century, after which there occurred decreases seen until the 19th century. 2. The greatest secular trends in children and adults arise in our century. 3. The influence of different environmental factors on the body height in past and present is discussed and the sex-specific reactions to changes of these environmental factors are described. 4. It is pointed out that social, and/or geographic influences can cause changes of the body height calculated from skeleton material.
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[Hypotheses and causes of body height progressions since mid 19th century--a scientific historical review. I: Discussion of causes since the end of the 19th century to mid 20th century, including references on body height development in the 19th century].
This examination is trying to give a scientific historical survey of the hypothesis and the reasons for progression of height since the middle of the 19th century. These progressions of height are not based on a single reason, but were kept going by the addition of consecutive reasons. Physical relief is mainly responsible for the most recent phase of progression of height.
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[Nutritional condition of epidermolysis bullosa patients assessed from body height and weight].
Exact body height and weight data of patient with epidermolysis bullosa simplex (EBS) and recessive dystrophic epidermolysis bullosa (RDEB) were collected through a nation-wide epidemiologic investigation concerning epidermolysis bullosa (EB) patients. This data was then compared with the averaged body height and weight of age and sex matched normal controls. The nutritional condition of the EB patients was evaluated statistically. The data showed that height of female EBS patients was less than the controls (p less than 0.01), and furthermore, that height and weight of male and female RDEB patients was also less than the controls (p less than 0.01). These results indicated that EB, especially RDEB patients, were in the poor nutritional condition, and that the adequate nutritional management might significantly influence the prognosis of these patients.
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[Use of knee height to correct the body height of elderly Hispanics].
Loss of stature in certain elderly subjects can be attributed to diseases such as osteoporosis, as well as to age and generational effects. In addition, many elders cannot stand straight for accurate measurement. For these cases, total height can be estimated with regression equations based on knee height. The aims of this study were, firstly, to evaluate the applicability of regression equations based on knee height for estimation of stature and, secondly, to document the differences between measured and estimated height in a group of elderly Hispanics with postural problems (n = 166) in comparison with a group of elderly Hispanic without postural problems (n = 270). Using both, estimated and measured height, we also calculated the body mass index (BMI) of both groups of elders. Statistical analyses were done with paired t-tests, within sex and study group. Within the group with postural problems, estimated height was higher than the measured height for both men (p < or = 0.001) and women (p < or = 0.001). There were no significant differences between measured and estimated height in the group without postural problems. Furthermore, in the group with postural problems, BMI values calculated with estimated height were lower than those estimated with the measured height, and these differences were also significant for both men (p < or = 0.001) and women (p < or = 0.001). With the aging of the Latin American population, there is a need for more nutrition and health research among elders. In order to do this we need to develop and use methods and criteria appropriate for each population.
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[Determination of body height from fragments of the femur].
Presenting a major problem in connection with reconstructing the height of body from the dimensions of long or pipe bones are the circumstances under which damage is caused thereto in mass accidents such as, for example, plane crashes. Such accidents often result in long bones being fractured completely, so that it is not possible for them to be directly used for reconstructing the height of body. In such cases, use can be made of the methods described by Steel (1970) who determined segments for such long bones as the femur, tibia, and humerus and also set up formulas by use of linear regression analyses, which enable the lengths of single fragments of bones to be used for estimating the overall length of bones which can then be substituted into equations for reconstructing the height of body. The procedure has been verified statistically, and suitable formulas have been established for the femur, which is the bone that lends itself particularly well to estimations of the height of body. When using these formulas, the residual variance is generally as great as 10 cm. Accordingly, it appears inappropriate for public medicolegal officers to calculate a height of body which is beset by a range of variation that is as great as this. Therefore, the 2nd part of this paper presents a possible way of determining the stature of a human body from individual segments of the femur. The limits of these size groups have been determined for data to be recorded in identity cards and other personal documents. The method is based upon the calculation of conditional probability distributions for given lengths of segments.
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Assortative mating by body height and BMI: Finnish twins and their spouses.
Assortative mating by body height and weight is well established in various populations, but its causal mechanisms remain poorly understood. We analyzed the effect of phenotypic assortment and social homogamy on spousal correlations for body height and body mass index (BMI, kg/m(2)). Our data derived from a questionnaire administered to the adult Finnish Twin Cohort in 1990 (response rate 77%) yielding results from 922 monozygotic and 1697 dizygotic adult twin pairs who reported information about their body height and weight and that of their spouses. Assortative mating was evident for body height and BMI. For body height, the effects of social homogamy (0.24 in men and 0.29 in women) and phenotypic assortment (0.27 and 0.28, respectively) were about the same. For BMI, the effect of social homogamy was stronger (0.31 in men and 0.28 in women) than the effect of phenotypic assortment (0.13 in both men and women). When assortative mating was taken into account, shared environmental factors had no effect on phenotypic variation in body height or BMI. Our results show that assortative mating needs to be considered in population genetic studies of body height and weight.
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Body height estimation based on tibia length in different stature groups.
Long bone length is one of the best-known indicators of human stature. Although the long bone length/height ratio differs in tall and short individuals, no detailed study has investigated whether specific formulae should be used to calculate height in different stature groups. This study proposes a new height estimation method. Body height and tibia length were measured in 121 male subjects aged 18.0-34.3 years. Three subgroups were established according to body height (short, medium, or tall), using the 15th and 85th percentiles as cutoff levels. The general formula and a group-specific regression formula were used to estimate height in each subgroup. A control group with the same properties as the study group was analyzed in the same manner. Particularly with "short" and "tall" subjects, the difference between true height and the height predicted by the group-specific formulae was smaller than the difference observed when the general formula was used. These discrepancies were statistically significant. When estimating height based on tibia length, the individual's general stature category should be taken into consideration, and group-specific formulae should be used for short and tall subjects.
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Inter-generational educational advancement and body height.
This study investigates the association between body height and inter-generational social advancement through education. Questionnaire data were collected from 2800 students (1023 men and 1777 women) from the universities of Wroclaw, Poland. The questions referred to three generations: the students and their parents and grandparents. Information was collected on the age, body height and weight of the students and their parents, and on the parents' and grandparents' education. The lowest body heights were typically found for individuals from families with the lowest educational levels, whereas the greatest body heights were found for those brought up in families with a high educational status or in families who had upgraded their status. The size of the change in the educational level of parents is only associated with fathers' and female students' body height. Individuals who had advanced from a middle educational level or who came from families with this type of advancement were found to be significantly taller, on average, than those upgrading their educational level from the lowest position. The results show that, for men, educational advancement during the course of their lives or in the earlier generation is more favourable to achieving higher stature, whereas for women, the multi-generational tradition of a high educational status is of greater significance.
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Income, educational level and body height.
The relation between adult body height and two socio-economic factors (income and educational level) was studied in a large, ethnically homogenous population. In the period 1980-1983 all persons aged 40-54 years (born 1926-1941) in two Norwegian counties were invited to a cardiovascular screening. Ninety per cent (or 38162 persons) of those invited attended and had their height measured. Information concerning income and education was available at an individual level from the 1980 national census. Strong, positive relations were found between mean body height and the socio-economic factors, relations that probably are due to conditions during growth influencing both height, attained education and income abilities. The difference between highest and lowest educational class was 3.3 cm in men and 3.2 cm in women, and between highest and lowest income group 3.5 cm in men and 4.2 cm in women. These differences could not be explained by the strong cohort effect of increasing height in the successive birth cohorts from 1926 to 1941 which also was evident. It should be emphasized that height only could explain a small fraction of the variance in the socio-economic factors and is thus not a usable indicator of an individual's socio-economic status. However, it might contribute with important information concerning social inequalities in groups or population.
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[Prediction of body height and shortening of the lower part of the body in adults with achondroplasia].
The authors present the method of predicting the body height of patients with achondroplasia in adulthood and the method of predicting shortening of the lower segment of the body as compared to the trunk. They evaluate a group of 12 patients with achondroplasia at the age from 3 to 17 years. They compare the growth curves of patients with normal Czechoslovak population and with a group of American patients suffering with achondroplasia. The application of growth curves of American patients with achondroplasia appears to be the most suitable and simple graphical method for the prediction of the body height of the Czechoslovak patients suffering from achondroplasia. The method of the prediction of dwarfism of the lower segment of the body has been developed for the purpose of the rational indication of the stepwise prolongation therapy by the compression-distraction method. Analogically it will be possible to verify the growth curves for some other bone dysplasiae presented in literature and predict dwarfism of the lower segment of the body in adulthood, e.g. in hypochondroplasia, metaphyseal chondrodysplasia of the type of Schmid, Turner syndromes, etc.
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Social background, adult body-height and health.
STUDY OBJECTIVE: To study the socio-demographic determinants of body-height and the bearing of these determinants on the association between body-height and health among Finnish adults. DATA AND METHOD: Cross-sectional population survey including questions on social background, body-height and health, and retrospective questions on childhood living conditions. The data derive from a representative Survey on Living Conditions collected by Statistics Finland in 1994. The response rate was 73%. Male and female respondents > or =20 years were included in the analysis (N = 8212). Statistical methods include regression analysis and logistic regression analysis. RESULTS: Body-height was strongly associated with year of birth, region, childhood living conditions and education among adult men and women. Body-height was also associated with limiting long-standing illness and perceived health as below good. Tall men had the best health and short men the poorest health. Among women the association of body-height with health differed from men, as tall women showed high levels of limiting long-standing illness, notably musculo-skeletal diseases. Adjusting for the background variables weakened but did not abolish the association between poor health and short stature among men and women. CONCLUSIONS: Short stature is associated with poor health among Finnish men and women. A non-linear association among women was found for musculo-skeletal diseases. The studied social background factors explained only little of the association between body-height and health.
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[New reference values for child development. Body height has increased 1-2 cm, body weight 1-2 kg].
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Body height changes from vibration.
A device for measuring body height is reported (SD, 1 mm). The change in body height before and after vibration and quiet sitting respectively was studied in eight men aged 22-44 years who were free of back pain. The vibration frequency was set at 5 Hz and the acceleration at 2 msec-2. Subjects were asked to report for testing within 2 hours after arising from bed. Body height was measured before and immediately after vibration or sitting exposure and the measurements were repeated at different intervals up to 2 hours after the experiment. Results show that exposure to vibration increases the overall creep response in most subjects. There is a great deal of variability in response between subjects, but most of them show a recovery to the average creep response within a 2-hour time interval.
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[Study and drawing of standard curve of body height and weight for orthodontics].
OBJECTIVE: To study and trace the standard growth curve of body height and weight of adolescent in Shenzhen area for orthodontic diagnosis and treatment planning. METHODS: Based on the general assessment data of 21,120 students (7-18 years) in Shenzhen, the body height and weight were measured and the standard curve of body height and weight was drawn. RESULTS: Under 12 years, the annual increment of body height and weight was similar for both sexes. Above 12 years, the annual body height and weight increment of girls was slower than that of boys. The annual body weight increment peak was between 11-12 years for girls and 13 years for boys. CONCLUSIONS: The standard growth curve of body height and weight plays an important role in the orthodontic diagnosis and treatment planning.
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Increase in vertebral body height after vertebroplasty.
BACKGROUND AND PURPOSE: During clinical work, we have seen increases in vertebral body height associated with vertebroplasty, but our literature search revealed no reports as to how often and to what degree those increases occur. The purpose of this study was to document the frequency and degree of changes in vertebral body height after vertebroplasty. METHODS: The heights of 85 vertebral bodies in 37 patients were measured before and after vertebroplasty. In addition, one adjacent vertebral body was measured in each patient as a control. Twenty-six patients had compression fractures in the thoracic spine, and 24 patients had compression fractures in the lumbar spine. Vertebroplasty was performed with a bilateral transpedicular approach by injecting polymethylmethacrylate, under biplane fluoroscopic control. Measurements were performed on preoperative MR images and on postoperative CT sagittal reformations. Anterior, central, and posterior vertebral body height measurements were obtained in the midsagittal plane. RESULTS: The average increase in vertebral body height was 2.5 mm anteriorly, 2.7 mm centrally, and 1.4 mm posteriorly. Thirteen of 85 treated vertebrae remained unchanged. All control vertebral bodies also remained unchanged. CONCLUSION: Vertebral body height often increases during vertebroplasty. The clinical significance of increasing vertebral body height is unknown.
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