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PubMed2000

[Anthropometry in workers and ergonomic aspects of work stations in the printing plant of the government of the state of Zulia, Venezuela].

To measure the corporal dimensions of the workers and the relationships with the spaces and equipments used in the printing processes, as the initial phase for the design and implementation of a surveillance program of work-related musculoskeletal disorders, 38 workers of a press were studied, by making an anthropometric record for ergonomic studies (CAPEE). The interior spaces and machinery were measured according to a format designed for that purpose. When the anthropometric parameters for each sex, the width elbow-elbow, height of the plane of the seat--elbow, height floor--upper face of the thigh and maximum width of hips were compared, they did not present significant differences. The other anthropometric parameters differ statistically (p < 0.05), being greater in men, except the height of the heel (p < 0.01). When relating the anthropometric measures and those of the interior spaces, there were no relationships among the maximum vertical reach of knuckles with the minimum height of objects and controls, the plane height of the seat-eye with the height of the computer's monitor and the sacrum-knee distance with the height of the work surface. The other variables showed a significant statistical relationship (p < 0.05). The interior spaces of the press are adapted to the anthropometric measures of its workers, fulfilling ergonomics approaches. These anthropometric measures and the ergonomics aspects of objects and workplace provide elements that will allow the design and the implementation of surveillance programs for the control and the prevention of work-related musculoskeletal disorders, related to the personnel's inadequate selection and to the redesign of interior spaces, and the selection of the machinery and tools to use in the technological processes.

Anthropometry↗
PubMed2000

[Neonatal anthropometry and early differentiations in embryo-fetal growth].

It is well known that the biologic variability in fetal size increases as pregnancy advances, although the embryonal and early fetal growth patterns as well as how early and how much the genetic, hormonal and environmental variables play a role in its modulation are still debated. It is accepted that growth in the first trimester of pregnancy is relatively uniform, with a minimal biologic variability; this variability may be underestimated, because the transversal studies do not permit the identification of the growth pattern. The aim of this work is to evaluate, by means of a longitudinal study, the time of embryo-fetal growth differentiation related at neonatal anthropometric measurements. We evaluated 238 neonates (123 female; 115 male) delivered at term after low risk, uncomplicated pregnancies. The subjects were divided into three tertles (low, mid and high) according to birth weight, length and head circumference. For each tertle, distance curves, velocity curves, and rate of increase were calculated by using respectively fetal abdominal circumference (for birth weight), fetal femural length (for neonatal length) and fetal head circumference (for neonatal circumference). The distance curves showed clear differences among the tertles only in the second period of pregnancy, whereas the velocity curves showed clear differences among tertles already in the first 12 weeks. The value of growth rates were similar for all the variables during the entire time considered. This study shows that the anthropometric differences between newborn subgroups exist already at the end of the first trimester of pregnancy and, in physiological conditions, until the end of pregnancy. The anthropometric differences observed early in our study, at twelve weeks of gestational age, are still present at the end of pregnancy and let us suppose a very early expression of the genetic potential for individual growth.

Anthropometry↗
PubMed2001

[Comparison of body fat using anthropometry bioelectrical impedance and DEXA in elderly women].

Verify correspondence and compare percentage body fat (%BF) estimates by skinfold thickness (SKT), bioelectrical impedance analysis (BIA) and DEXA. Twenty voluntaries women (aged 62-79 yr) were assessed. The body fat was estimated using two different equations of SKT(Jackson (19); Durning and Womersley, (20)), BIA using two-predictions formulas (23) and DEXA. To compare mean values of %BF was used analysis of variance for repeated measures (ANOVA--Bonferroni), the correlation of the inter-method was verified by Pearson correlation coefficients (r), and correspondence between prediction formulas was tested by using the approach by Bland and Altman (25). The %BF assessed by BIA (23) shown poor correlation (r < 0.5) with two SKT equations. The %BF ranged from 31.5 +/- 5.5 to 41.2 +/- 6.1 (mean +/- SD) for Jackson (19) e DEXA, respectively. The analysis of variance shown no significant differences (p > 0.05) between methods and/or equations by BIA (RJL-CompCorp) vs. DC-Jackson (19). There were observed significant differences (p < 0.001) between all comparisons. The correspondence between RJL-CompCorp vs. Deurenberg (23) was good and the same was observed for DEXA vs. Durning and Womersley (20). Although the methods and/or equations used in this study have been commonly utilized to estimate BF in elderly subjects, they neither must be used as a standard method. Each method has limitations and the comparison can be useful for interpretation of results.

Absorptiometry, Photon↗
PubMed1999

Interobserver errors in anthropometry.

To present basic information on the interobserver precision and accuracy of 32 selected anthropometric measurement items, six observers measured each of 37 subjects once in two days. The data were analyzed by using ANOVA, and mean absolute bias, standard deviation of bias, and mean absolute bias in standard deviation unit were used as measures of bias. By comparing the results of the two days, the effects of the practice on measurement errors were also investigated. Variance was overestimated by more than 10% in five measurements. Interobserver error variance and random error variance were highly correlated with each other. Measures of the bias were significantly correlated with interobserver and especially with random error variances. The interobserver errors were drastically reduced on the second day in the measurement items in which the causes of the interobserver errors could be specified. It was speculated that even when the definitions of the landmarks and measurement items were clear, the ambiguity in the practical procedures in locating landmarks, applying instruments, and so on, permitted each observer to develop his or her own measurement technique, and it in turn caused interobserver errors. To minimize interobserver and random errors, the standardization of measurement technique should be extended to the details of the practical procedures.

Adult↗
PubMed2002

[Postnatal growth of very low birth weight infants. Anthropometry at two year of age: a longitudinal study].

BACKGROUND: The growth rate is an important indicator of the child's health state. Premature newborns require an especially exact and reliable assessment of their growth which should include, above all, their maturity. AIM: The evaluation of the influence of newborn's maturity on its growth rate during 2 first years of life. MATERIAL AND METHODS: Prospective, longitudinal cohort study. 159 newborns born < or = 32 weeks of gestation discharged from 3rd level NICU were divided into 2 cohorts: A) born between 24-28 weeks (n = 83) and B) born between 29-32 weeks (n = 76). Before discharge and then every month in the 1st year of life and every 3 months in the 2nd year of life weight, length, head circumference and chest circumference were measured. RESULTS: Median length in 6th month was 622 mm in group A and 650 mm in group B (p < 0.05), after 1 year 720 mm vs 745 mm (p < 0.05), and after 2 years 819 mm vs 853 mm (p < 0.05). Median weight was 6010 vs 7160 g (p < 0.05), 8210 vs 9410 g and 9965 vs 11,260 g (p < 0.05), median chest circumference 40 vs 42 cm (p < 0.05), 44 vs 46 cm (p < 0.05) and 46 vs 47.5 cm (p < 0.05) and median head circumference 42 vs 43 cm (p < 0.05), 45 vs 46 cm (p < 0.05) i 47 vs 48 cm (p = 0.06). The results were also presented as growth charts. CONCLUSIONS: The newborns born between 29-32 week of gestation have faster growth rate than newborns born between 24-28 week of gestation. The assessment of development of extremely premature newborns should be based on growth charts prepared separately for a given gestational age.

Anthropometry↗
PubMed2002

Nonsteroidal anti-inflammatory drug use, body mass index, and anthropometry in relation to genetic and flow cytometric abnormalities in Barrett's esophagus.

A dramatic increase in the incidence of esophageal adenocarcinoma has occurred among men in the United States over the last two decades. The underlying reasons remain largely unknown, although the increasing prevalence of obesity likely plays a role. Most adenocarcinomas arise in a metaplastic epithelium termed Barrett's esophagus (BE) that develops in approximately 10% of persons who have chronic gastroesophageal reflux. Persons with BE are at high risk (0.5-1.0%/year) of progressing to cancer. In a cross-sectional study of 429 persons with BE, we evaluated the associations between increased body mass index, anthropometric measures, cigarette smoking, use of nonsteroidal anti-inflammatory drugs (NSAIDs) and markers of increased risk, including aneuploidy, increased 4N fraction, loss of heterozygosity (LOH) of 17p and 9p alleles, and high-grade dysplasia (HGD). In logistic regression models adjusting for age, gender, NSAID use, and cigarette smoking, increasing waist:hip ratio was related to increasing risk of aneuploidy (trend P = 0.01), 17p LOH (trend P = 0.005), and 9p LOH (trend P = 0.007). The odds ratios comparing highest to lowest quartiles were 4.3 [95% confidence interval (CI), 1.2-15.6] for aneuploidy, 3.9 (95% CI, 1.3-11.4) for 17p LOH, and 2.7 (95% CI, 1.2-6.3) for 9p LOH. A nonsignificant trend was also observed for increased 4N fraction, whereas little association was found for HGD. Similar patterns of risk were noted for other anthropometric measures such as waist:thigh and abdomen:thigh ratios. There was no evidence that elevated body mass index increased risk of any of the biomarkers. Suggestive evidence also was found for a protective effect of NSAID use. The odds ratios for current users, compared with those who never used NSAIDs regularly, were 0.6 (95% CI, 0.3-1.4) for increased 4N, 0.6 (95% CI, 0.3-1.3) for aneuploidy, 0.3 (95% CI, 0.1-0.7) for 17p LOH, and 0.7 (95% CI, 0.4-1.2) for HGD. There was no association between NSAID use and risk of 9p LOH. We conclude that an abdominal distribution of body fat, which is more common in men and is termed male-pattern obesity, may be a strong predictor of risk of neoplastic progression among persons with BE and may account in part for the male predominance of BE and esophageal adenocarcinoma. We also conclude that NSAID use may reduce the risk of progression to cancer in this population. Prospective studies are needed to confirm these results.

Adult↗
PubMed2002

[Facial anthropometry and aesthetic perception in young italian subjects: their use for orthognatic surgery].

BACKGROUND: Aesthetic requests of patients undergoing orthognatic surgery have increased over time and represent nowadays the leading subjective motivation for the patient and a major aim of the treatment for the surgeon. In this regard, anthropometric evaluation has considerably improved the diagnostic capacity of the orthodontist and of the surgeon. Aim of the study is to provide the orthognatic surgeon with anthropometric normal values based on a sample of aesthetically pleasant Italian subjects and to discuss the use of a simplified aesthetical analysis in the set-up of the surgical plan and in the evaluation of treatment outcome. METHODS: The present study analyses 94 Italian subjects, by means of anthropometric measurements on photographic images, considering 28 facial proportions and 33 angular values. These figures were compared with the aesthetic judgement provided by 3 common observers and 3 orthodontists. The aesthetic score was attributed on a subjective discrete scale (common observer: above average/average/below average; orthodontist: eumorphic/ dismorphic). Data were also compared with similar evaluations on North-American and African subjects reported in the international literature. RESULTS: This study confirms the sexual dismorphism and the ethnic variability already reported by other Authors and documents specific morphological characters in the Italian population. CONCLUSIONS: The described method appears acceptably simple and consistent for clinical application. Its use in orthognatic surgery may provide objective and reproducible data for evaluating the aesthetic outcome of treatment.

Adolescent↗
PubMed2003

Anthropometry and body composition in northern Asian Indian patients with type 2 diabetes: receiver operating characteristics (ROC) curve analysis of body mass index with percentage body fat as standard.

AIMS: To determine the anthropometric profile and appropriate cut off of body mass index (BMI) to define obesity in Asian Indians with Type 2 diabetes mellitus (T2DM). METHODS: Three hundred and eighty T2DM patients (213 males and 167 females) in northern India were subjected to anthropometric and body fat analysis (derived from skinfold thickness). The latter was considered as "standard" for defining obesity. Receiver Operating Characteristics (ROC) curves were drawn for males and females to determine the appropriate limits of BMI to define obesity. RESULTS: Mean values of percentage of body fat (%BF) were 40.2 +/- 6.2% and 29.4 +/- 7.1% in females and males, respectively. Of particular note, substantial percentage of patients had high values of waist-hip ratio (W-HR) [males > 0.95 (53.9%), and females > 0.80 (88.6%)] indicating significant abdominal obesity, and high % BF [males > 25 % BF (73.2%), females > 30% BF (92.2%)] indicating generalized obesity as well. Significantly higher prevalence of obesity was observed in both males (p < 0.001) and females (p < 0.001) when estimated by %BF (males > 25%, females > 30%), as compared to BMI (> 25 kg/m2 in both males and females). ROC curve analysis showed that with %BF taken as the 'standard' for determining obesity, sensitivity and specificity of BMI of > 25 kg/m2 were low. For BMI > 22 kg/m2 in males and > 23 kg/m2 in females, sensitivity increased and there was decrease in overall misclassification. CONCLUSIONS: The data of current study suggest strikingly high prevalence of abdominal obesity, and generalized obesity as determined by %BF in T2DM patients, and that cut offs for defining obesity by BMI are lower than the suggested limit of 25 kg/m2. Revised definition of obesity using lower cut off of BMI, or based on %BF in northern Asian Indian T2DM patients will lead to a more rational application of dietary restriction, lifestyle measures, and use of metformin.

Abdomen↗
PubMed1992

Lipid profile, anthropometry and dietary intake of 132 Thai vegetarians.

The anthropometric measurements, lipid pattern and dietary intake of 64 male and 68 female Thai vegetarians (mostly lacto-vegetarians) were investigated. 32 males and 36 females on an ordinary Thai diet served as controls. Nutritional anthropometric variables and serum lipid concentrations, which the exception of triglycerides, were found to be lower in the vegetarian group than in the control group. The vegetarians consumed more energy than the controls. No difference in the protein intake was observed in both groups. Fat intake was, however, lower and carbohydrate intake higher in the vegetarian group. Also in the vegetarian group, HDL-cholesterol fraction correlated negatively with anthropometric measurements. Other fractions show only a weak correlation, if at all, in this group. A good correlation to all serum lipid variables determined to anthropometric measurement was observed in the control group.

Adult↗
PubMed1992

Assessment of abdominal fat distribution in obese patients: anthropometry versus computerized tomography.

The accuracy of waist to hip girth ratio (WHR) in assessing visceral/subcutaneous abdominal fat distribution has not yet been clearly established in the obese population. The purpose of the present study was to evaluate the relationship between WHR and visceral/subcutaneous fat distribution, both assessed by computerized tomography (CT), in a group of 28 obese patients (15 male, 13 female). Furthermore, 33 normal weight or slightly overweight subjects (23 male, 10 female) were studied as a control group. Obese subjects of both sexes were found to have higher values of WHR than non-obese; conversely visceral:subcutaneous fat area ratio (VSR) values did not differ significantly. Significant correlation between WHR and BMI was present both in males (r = 0.41, P < 0.01) and in females (r = 0.54, P < 0.01). In normal weight males significant correlations between WHR and visceral fat area or VSR were found. In obese males these correlations were much weaker. In normal weight females a significant correlation was found between waist circumference and visceral fat area, whereas in obese females no positive correlations were found between anthropometric measurements and CT indices of visceral fat distribution. In conclusion, WHR cannot be considered as a reliable index of visceral/subcutaneous fat distribution in obese patients, particularly if they are females.

Abdomen↗