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PubMed1978

Changes in somatotypes of European males between 17 and 24 years.

In order to examine the possible changes in somatotype of young males, 14 boys who had been somatotyped annually from 11 to 18 years by the Health-Carter anthropometric rating method were re-somatotyped at 24 years. The analysis focused on years 17, 18 and 24. Discriminant analysis, somatotype dispersion indices and distances, and the I-index were used to analyze the data. The findings showed a significant shift in somatotype from ectomorphmesomorph towards endo-mesomorphy between 17 and 24 years. This shift was greater than that observed by Zuk ('58), and was in the same direction. It is hypothesized that the somatotypes of males become more endo-mesomorphic from 17 years to the mid-twenties.

Adolescent↗
PubMed1990

Somatotype and longevity of former university athletes and nonathletes.

A longitudinal study was conducted on 398 athletes and 369 nonathletes who were born before 1920 and attended Michigan State University. The subjects were compared to determine if intercollegiate athletic competition accounts for significant variation in longevity when considered with somatotype. Because some of the subjects were still alive at the time of the study, the BMDP Statistical Software was used to do a survival analysis with covariates. Preliminary comparisons considered the differences in somatotype between athletes and nonathletes. Two sample t-tests indicated that athletes were more mesomorphic and less ectomorphic (p less than .05) than nonathletes. When comparing the relationship between somatotype and longevity, the pooled data of athletes and nonathletes indicated that endomorphs were shorter lived than the other three comparison groups. When only the athletes were considered, similar results were found. However, the nonathlete group exhibited differences only between the mesomorphic and endomorphic groups. The endomorphs were shorter lived. Longevity was examined by using the Cox proportional hazards regression method with somatotype and athlete/nonathlete status as covariates. Somatotype, by itself, was found to be significantly related to longevity, (p less than .001). Athletic status was not significantly related to longevity, either by itself or when entered into the model with somatotype.

Age Factors↗
PubMedDate not supplied

Familial resemblance for physique: heritabilities for somatotype components.

PRIMARY OBJECTIVE: To examine familial resemblance in the Heath-Carter anthropometric somatotype in a sample of 328 participants from 103 nuclear families in Northern Ontario (Canada). METHODS AND PROCEDURES: The three somatotype components (endomorphy, mesomorphy, ectomorphy) were subjected to principal components analysis and the resulting first principal component (PCI) was used as an additional index of physique. The four phenotypes were adjusted for age, sex and generation effects, while each of the three somatotype components was further adjusted for the effects of the other two components using regression procedures. A familial correlation model was fit to the data and used to estimate the degree of familial resemblance in somatotype. MAIN OUTCOME AND RESULTS: For all somatotype variables, the most parsimonious model was one in which there was no spouse resemblance and no sex or generation effects in the familial correlations. Maximal heritabilities were 56%, 68%, 56% and 64% for endomorphy, mesomorphy, ectomorphy and PCI, respectively, indicating significant familial resemblance for the Heath-Carter anthropometric somatotype. Further, the pattern of familial correlations suggests the role of genetic factors in explaining variation in human physique. CONCLUSIONS: In general, a pattern of no spouse but significant parent-child correlations implicates the role of genes on human physique, provided that mating is random with regard to these traits.

Adolescent↗
PubMedDate not supplied

Somatotype, nutrition, and obesity.

UNLABELLED: The purpose of this investigation is to evaluate the somatotype characteristics of the studied group and search for a relation between somatotype, obesity, and particular features of nutrition. METHODS: Somatotype after Health & Carter (1990), nutritional status according to Body mass index (BMI), and nutrition determined by food-frequency questionnaires. RESULTS: Over 94% of the subjects in this study were distributed into five somatotype categories: 51.6% endomorphic mesomorphs, 17.1% mesomorph-endomorphs, 16.7% mesomorphic endomorphs, 6.1% balanced mesomorphs, and 3.0% ectomorphic mesomorphs, with a pronounced sexual dimorphism. Males were distributed into five categories: over 65% were endomorphic mesomorphs, and above 40 years of age the mesomorphy increased. Females were distributed into three somatotype categories: up to and above 40 years of age over 44% were mesomorphic endomorphs. In the most common somatotype categories, 1 of 5 subjects (from 21.4% to 19.9%) had normal body mass (< 25 kg/m2), 4 of 5 subjects (from 34.2% to 52.6%) were overweight (> 25 kg/m2) or obese (> 30 kg/m2) kg/m2 (from 44.4% to 27.5%). In the remaining eight categories, all subjects had normal body mass. Hyperenergetic, sodium- and fat-excess nutrition had an especially unfavorable influence.

Adult↗
PubMedDate not supplied

Somatotype and disease prevalence in adults.

We examined the association between the somatotype and its main components (endomorphy, mesomorphy and ectomorphy), and the prevalence of several chronic diseases. The data were obtained from a cross-sectional survey designed to assess somatotype and morbidity with special reference to most often diagnosed diseases. The study population comprised 524 men and 250 women. The subjects underwent laboratory tests and clinical and anthropometric examinations. Of all examined workers, 94.8% fell into the five somatotype categories; of these, 394 were endomorphic mesomorphs. The most common somatotype was endomorphic mesomorph for men and mesomorph-endomorph for women. In five disease groups, prevalence was significantly related to a somatotype. Mesomorphic endomorphs most frequently suffered from digestive system diseases (40.6%, p < 0.05), neuroses (30.1%, p < 0.05), and radiculitis lumbosacralis (15.4%). The prevalence of arterial hypertension in mesomorph-endomorphs (37.1%), endomorphic mesomorphs (35.5%), and mesomorphic endomorphs (34.3%) was equal. In both genders, those with the highest endomorphy and mesomorphy and the lowest ectomorphy, grouped by cluster analysis, were those who suffered most frequently from arterial hypertension and liver disease. The authors conclude that the somatotype having a dominant mesomorphy and marked endomorphy constitutes a risk factor as a particular predisposition toward certain diseases and requires body weight control.

Adult↗
PubMed2005

Somatotypic characteristic of schizophrenic patients.

AIM: Introduction of quantitative metric methods of somatotype assessment in schizophrenic patients to make clinical diagnosis more objective, the diagnosis being otherwise based exclusively on the clinical interview and assessment of the mental status of patients and thus involving certain subjectivity. MATERIAL AND METHODS: The study included 67 schizophrenic inpatients (38 men, 29 women) consecutively admitted to the Clinic of Psychiatry in Plovdiv. Their mean age was 31.47 years (SD = 9.43, range 16-56), mean duration of illness 6.86 (SD = 6.09, range 1-27), mean number of hospitalizations 4.22 (SD = 4.08, range 1-19). The patients satisfied DSM-IV criteria for a diagnosis of schizophrenia (American Psychiatric Association, 1994). The control group comprised 69 subjects (36 men, 33 women) with a mean age 39.24 years (SD = 10.18, range 22-68) and socioeconomic background matching that of the patients. RESULTS: The data showed statistically significant differences in the three somatotype component and in almost all somatotypological variables between male schizophrenic patients and control subjects. The somatotype categories were more extensively presented in the schizophrenic patients. There was a tendency to higher frequency of the ectomorphic categories (ectomorphic mesomorph, mesomorphic ectomorph and endomorph-ectomorph). No statistically significant differences were found in the somatotype components and somatotypological variables between the female schizophrenic patients and control subjects. CONCLUSION: The data of the examination of the somatotype of schizophrenic patients and control subjects evince a definite sexually related body constitution characteristic that differentiates the groups. Schizophrenic patients and control subjects are clearly determined somatotypically only in the group of males.

Adolescent↗
PubMed1995

Genetic and environmental influences on somatotype components: family study in a Spanish population.

Parent-offspring, sibling, and spouse resemblances for Heath-Carter somatotype components were assessed in 261 nuclear families from the Madrid, Spain, area. Each phenotype was adjusted for the effect of (1) age and sex and (2) family environment variables and age and sex by means of multiple regression. Age and sex explained a significant (p < 0.001) proportion of observed variation, but in no case did the addition of family environment variables appreciably alter the amount of variance accounted for by age and sex. Familial correlations were estimated by maximum-likelihood procedures for each somatotype component after adjusting for age, sex, and the other two somatotype components. Furthermore, several hypotheses regarding sex-specific and generational differences among correlations were assessed for each phenotype. No spouse resemblance was found for somatotype components. Significant parent-offspring and sibling correlations point out consistent familial aggregation for somatotype components, especially for mesomorphy. Familial correlations for mesomorphy were significantly (p < 0.05) influenced by the sex of parents (offspring were more similar to their mothers than to their fathers) and to a lesser extent (0.05 < p < 0.10) by the sex of the offspring. The sex of siblings did not significantly alter sib correlations for any of the somatotype components studied.

Adolescent↗
PubMed1976

Influence of physical activity on stability of somatotypes in boys.

The purpose of this study is to examine the stability of somatotypes of boys with different activity levels followed longitudinally for eight years. Thirty-nine boys ated 11 were somatotyped annually (until 18 years) using the Heath-Carter anthropometric rating method. Three sub-groups were formed according to their levels of systematic physical activity designated High, Moderate, and Low Activity. There were no differences in somatochart distributions of the Total Group, but there were considerable individual changes which cancelled each other in group comparisons. All boys changed their somatotype ratings at least once and 67% changed in component dominance. The inter-age correlations for the components were generally of poor prediction value, and the somatotype migratory distances showed considerable variation. The Total Group means differed on three components and this was attributed to differences within the Moderate Activity Group, the only sub-groups to differ. It was concluded that changes occur in somatotypes of adolescent boys, but the influence of physical activity on the changes is inconclusive.

Activities of Daily Living↗
PubMed1983

Self-concept: a function of self-perceived somatotype.

The Tennessee Self-concept Scale was employed to assess multiple dimensions of self-concept in 284 college males; the Perceived Somatotype Scale was used to assess three indices of somatotype. MANOVA revealed significant differences in global self-concept among the self-perceived somatotype (PSS), the perceived-ideal somatotype (PSI), and the self-ideal discrepancy (PSD) groups. Univariate analyses indicated that the PSS groups differed significantly in all but the Moral-Ethical dimension of self-concept, while no univariate self-concept differences were found among the PSI groups. The PSD groups differed markedly on all but the Moral-Ethical and Family Self subscales. The assertion that somatotype affords little psychological predictive utility needs amendment in light of the findings of the present study.

Adult↗
PubMedDate not supplied

Relationship between morphologic somatotypes and standing posture equilibrium.

Previous studies have identified height and weight as important factors affecting quiet standing stability but studies have not addressed body morphology as a global factor. Using anthropometric measurements, the morphologic somatotypes were defined in terms of body composition and structure. The aim of this study was to test the hypothesis that morphologic somatotypes were related to standing posture equilibrium in able-bodied girls. A total of 43 able-bodied girls having a mean age of 13.8 +/- 2.2 years participated in this study. Somatotype measurements were taken to determine their endomorphic, mesomorphic or ectomorphic components. Then, subjects were asked to stand still on a force platform for 64 s with their eyes opened, feet about 23 cm apart and arms aligned with the trunk. Afterwards, subjects were grouped based on the highest value of their somatotype component. There was no statistical difference in age, height and weight among the groups. The surface area of an ellipse delineated by the displacement of the centre of pressure (COP) was statistically larger (236.9 +/- 134.3 mm2) for the ectomorphs than for the endomorphs 137.7 +/- 71.4 mm2). The minor axis was longer (8.1 +/- 2.9 mm) for the ectomorphs than for the endomorphs (5.7 +/- 2.2 mm). The decrease in standing posture stability of the ectomorphic group was attributed to a relatively low muscle component, a high height weight ratio and an elevated position of the body centre of mass in this population of girls. Somatotypes should be considered when assessing standing posture in both able-bodied subjects and patients.

Adolescent↗
PubMed2005

Effects of dominant somatotype on aerobic capacity trainability.

PURPOSE: This study examined the association between dominant somatotype and the effect on aerobic capacity variables of individualised aerobic interval training. METHODS: Forty one white North African subjects (age 21.4+/-1.3 years; Vo2max = 52.8+/-5.7 ml kg(-1) min(-1)) performed three exercise tests 1 week apart (i) an incremental test on a cycle ergometer to determine Vo2max and Vo2 at the second ventilatory threshold (VT2); (ii) a VAM-EVAL track test to determine maximal aerobic speed (vVo2max); and (iii) an exhaustive constant velocity test to determine time limit performed at 100% vVo2max (tlim100). Subjects were divided into four somatometric groups: endomorphs-mesomorphs (Endo-meso; n = 9), mesomorphs (Meso; n = 11), mesomorphs-ectomorphs (Meso-ecto; n = 12), and ectomorphs (Ecto; n = 9). Subjects followed a 12 week training program (two sessions/week). Each endurance training session consisted of the maximal number of successive fractions for each subject. Each fraction consisted of one period of exercise at 100% of vVo2max and one of active recovery at 60% of vVo2max. The duration of each period was equal to half the individual tlim100 duration (153.6+/-39.7 s). After the training program, all subjects were re-evaluated for comparison with pre-test results. RESULTS: Pre- and post-training data were grouped by dominant somatotype. Two way ANOVA revealed significant somatotype-aerobic training interaction effects (p<0.001) for improvements in vVo2max, Vo2max expressed classically and according to allometric scaling, and Vo2 at VT2. There were significant differences among groups post-training: the Meso-ecto and the Meso groups showed the greatest improvements in aerobic capacity. CONCLUSION: The significant somatotype-aerobic training interaction suggests different trainability with intermittent and individualised aerobic training according to somatotype.

Adaptation, Physiological↗
PubMed1996

Body size and composition in different somatotypes of Japanese college-aged women.

The purpose of this study was to determine differences in body size, composition and structure between three somatotypes of Japanese college-aged women. The study sample consisted of 30 sedentary female college students between 18 and 20 years of age. Ten subjects had an endomorphic ectomorph somatotype (mean weight 41.95 kg), 10 had an endomorph-ectomorph somatotype (mean weight 47.12 kg) and the remaining subjects had a mesomorphic endomorph somatotype (mean weight 55.37 kg). The mean heights for these groups did not differ significantly. The mesomorphic endomorph group had a higher gross weight and a higher percentage of all adipose variables than the other two groups, though these measurements were not significantly different between the endomorph-ectomorph and the endomorphic ectomorph groups. The mean lean body weight (LBW) for the mesomorphic endomorph group was significantly larger than that of the other two groups. The endomorph-ectomorph group had the next largest LBW, and the mean for the endomorphic ectomorph group was significantly smaller than that of the other two groups. Inversely, mean values of LBW/weight(WT), LBW/total adipose tissue weight (TATW) ratio and total body water/WT were significantly lower for the mesomorphic endomorph group than for the other two groups. Furthermore, the ratios of internal adipose tissue to weight (IATW)/WT and subcutaneous adipose tissue to IATW (SATW)/IATW did not differ significantly between groups. In conclusion, college-aged women of different somatotypes within the same age and height range varied in body composition. Consequently, the notion of a small frame is incorrect. An accurate assessment of the human body's composition may provide a valuable insight into the ideal weight for optimal physiologic function.

Adolescent↗
PubMed2003

Body size and somatotype characteristics of male golfers in Japan.

AIM: The aim of this investigation was to compare the physical characteristics and somatotypes of 4 Japanese male golfer groups with 2 non-golfer control groups. METHODS: Sixty-three male golfers, professional golfers (PR, n=11), collegiate golfers (CO, n=24), general amateur golfers (AM, n=13), collegiate recreational golfers (RE, n=15), non-golfing college student (CG, n=45) and a senior population of non-golfers as a control group (SC, n=20), for a total n=128. They were somatotyped, according to the Heath-Carter anthropometric method. RESULTS: The results show that the categories of the mean somatotypes of PR (3.8-5.8-1.6), CO (4.7-5.6-2.2), AM (3.3-4.4-2.6) and RE (3.7-4.8-2.7) were endomorphic mesomorph, SC (4.7-3.9-2.1) was mesomorphic endomorph, and CG (3.8-4.3-3.3) was central, respectively. The anthropometric variables that best discriminated between skilled and unskilled golfers were body weight, calf skinfold, calf girth, and femur width, with 82% correctly classified PR and 83% correctly classified for CO. Secondly, combination of sum of 4 skinfolds, biceps girth and humerus width, with 72% correctly classified PR and 75% correctly classified for CO. CONCLUSION: Within the Japanese golfer groups, there are differences between golfers and non-golfers with respect to somatotype, body size and composition. Results suggested that PR showed significantly larger limb girth than other groups. Somatotypes in male golfers tend to increased mesomorphy, related to skill level.

Adult↗
PubMed1989

Somatotypes of premenarcheal athletes and non-athletes.

One-hundred thirty-four premenarcheal girls between the ages of 7 and 15 years were somatotyped according to the Health-Carter technique. Sexual maturation was determined by self-assessed Tanner stages. Statistical analysis was completed on 50 athletes (representing seven sports) and 29 non-athletes over the age of 10 years. The mean somatotype for the athletes was calculated to be 2.4-3.6-3.9 and for the non-athletes 3.7-3.7-3.6. Single component ANOVA's revealed that the athletes were significantly less endomorphic (p less than 0.01) than the non-athletes. The overall somatotype ratings and the equality of dispersion about the means were significantly different between the athletes and non-athletes. The single highest category for the athletes was mesomorph-ectomorph and for the non-athletes, mesomorphic-endomorph. Significant negative correlations were obtained between mesomorphy and breast development (-0.33, p less than 0.05) and mesomorphy and pubic hair development (-0.44, p less than 0.01) for the athletes. Significant positive correlations were obtained between endomorphy and breast development (0.55, p less than 0.01) and endomorphy and pubic hair development (0.45, p less than 0.05) for the non-athletes. The mean somatotype for the gymnasts was 2.1-3.9-3.6 and for the swimmers 2.5-3.4-4.1. These two groups were significantly different from each other on each separate component and overall somatotype, but not in equality of dispersion. The results support the conclusion that premenarcheal athletes are morphologically different from non-athletes despite their youth and from each other based on sport specificity.

Adolescent↗
PubMed1996

Somatotypes of 14 to 19 years old urban boys and girls from Bilbao (Basque Country).

Following the anthropometric method of Heath-Carter (1967) individual somatotypes of a sample of 1260 school children (605 boys and 655 girls) living in Bilbao and aged between 14-19 years have been investigated. Age differences of the somatotype components and sexual dimorphism of the physique were also analyzed. In both sexes, somatotype varies with age. The main factor for these variations of the somatotype is in the boys the endomorphy, and in the girls the mesomorphy. The mean somatotypes of the total sample are in boys central (3.9-3.9-2.7) and in girls mesomorphic-endomorphic (5.3-3.1-2.3).

Adolescent↗
PubMedDate not supplied

Variations of somatotype in elderly Sardinians.

Somatotyping is an effective technique for the study of anthropometric variations and body composition in elderly subjects, even though it has not often been used in this field. The present study was conducted on a sample of 280 healthy Sardinians (134 men and 146 women) of age 60-89 years, subdivided into three age classes (60-69 years; 70-79 years; and 80-89 years). Somatotypes were computed according to Carter and Heath (Somatotyping-Development and Applications. Cambridge, England: Cambridge University Press; 1990). The results show a dominance of the endo- and mesomorphic components in the elderly subjects, with less development of ectomorphy than in younger individuals. In a comparison with other populations, our sample shows strong development of endomorphy and especially of mesomorphy, while ectomorphy values are generally low. Age-related variations are significant in both sexes and consist in a progressive reduction of the endomorphic component, particularly in the 80-89-year class (endomorphy in the three age classes: 6.4, 6.1, and 5.3 in men; 8.1, 7.8, and 6.8 in women). The mesomorphic component is characterized by stability (age variations: 6.4, 6.4, and 5.9 in men; 6.3, 6.4, and 6.3 in women) and the ectomorphic component by a slight increase (age variations: 0.5, 0.6, and 0.8 in men; 0.4, 0.3, and 0.5 in women). Sex differences are significant and especially large for the endomorphic component, with generally higher values in women. The sexual dimorphism tends to decrease with age. The results are discussed with regard to the biology of aging, with emphasis on the potential application of somatotype to studies of the elderly population.

Age Factors↗
PubMed2003

Masculine somatotype and hirsuteness as determinants of sexual attractiveness to women.

Five questionnaire studies asked women to rate the attractiveness of outline drawings of male figures that varied in somatotype, body proportions, symmetry, and in distribution of trunk hair. In Study 1, back-posed figures of mesomorphic (muscular) somatotypes were rated as most attractive, followed by average, ectomorphic (slim), and endomorphic (heavily built) figures by both British and Sri Lankan women. In Study 2, computer morphing of somatotypes to produce an intergraded series resulted in a graded response in terms of perceived attractiveness which mirrored the findings of Study 1. In Study 3, back-posed figures were manipulated in order to change waist-to-hip ratios (WHR) and waist-to-shoulder ratios (WSR). A WHR of 0.8-0.9 and a WSR of 0.6 were rated as most attractive and these effects were more pronounced when modeling mesomorphic figures. In Study 4, symmetric figures of a mesomorphic somatotype were rated as less attractive than a normal (asymmetric) version of the same man. Study 5 showed that presence of trunk hair had a marked, positive effect upon women's ratings of attractiveness for both mesomorphic and endomorphic male figures. Women also judged figures with trunk hair as being older and they consistently rated endomorphic figures as being older than mesomorphs. These results are consistent with effects of sexual selection upon visual signals that advertise health, physical prowess, age, and underlying endocrine condition in the human male.

Adult↗
PubMed1991

Comparison of body composition and somatotype of trained female triathletes.

The body composition and somatotype of 16 trained female triathletes aged 18.8-32.8 years were measured. All of the subjects were engaged in a competitive training programme and participated in the same triathlon. Anthropometric variables included height, mass, selected diameters, girths and skinfolds, and a Heath-Carter anthropometric somatotype. Body composition was determined by hydrostatic weighing procedures and skinfold patterns. Comparisons were made with Olympic swimmers and runners. The triathletes had a mean body mass of 55.2 kg and a mean height of 162.1 cm. When compared to swimmers, the triathletes were somewhat shorter and significantly (P less than 0.005) older. On most other measures, including a balanced mesomorph somatotype of 3.1-4.3-2.6, they were similar to swimmers. This group of triathletes were generally heavier, less lean, more mesomorphic and less ectomorphic than elite runners. Reported body densities from other studies indicated little difference between the triathletes and other groups. Skinfold patterns were similar in shape for all groups, but the runners had smaller values, at all sites, than either swimmers or triathletes. Because of lack of information on cyclists, adequate comparisons were not possible. Regression analysis indicated that training parameters were more important than anthropometric measures in the prediction of performance. It was concluded that this group of triathletes were closer, with respect to both body composition and somatotype, to swimmers than to runners.

Adolescent↗