Aim: Obesity is one of the most crucial challenges of contemporary medicine. Bioelectrical impedance analysis is a useful tool to identify individuals with increased fat mass. However, the equipment is relatively expensive, especially compared to basic anthropometric methods. The aim of this study was to evaluate the relations between anthropometric indices and bioelectrical impedance analysis in patients with uncomplicated arterial hypertension. Material and methods: In 137 hypertensives the correlations between fat mass (absolute, FM; relative, %FM) and anthropometric parameters (body mass index, BMI; waist circumference, WC; waist-to-hip ratio, WHR; waist-to-height ratio, WHtR; body adiposity index, BAI; visceral adiposity index, VAI) were analysed. Results: Classic anthropometrics correlated well with bioimpedance indices of adipose tissue content: %FM vs. BAI (R = 0.77), WHtR (R = −0.54), BMI (R = 0.52), WC (R = 0.29); FM vs. BMI (R = 0.82), WC (R = 0.66), BAI (R = 0.58), VAI (R = 0.26), WHtR (R = 0.23), WHR (R = 0.19). In females BMI, WC and BAI showed the strongest correlations with adiposity. In males they were WHtR and WC. Conclusions: Some anthropometric measurements show good agreement with bioelectrical impedance analysis and can be considered a valid surrogate for body composition assessment in the case of its inaccessibility. In hypertensive women WC and BMI seem to be the most precise in the assessment of %FM, while in men WHtR and WC are more useful.
PL
Cel: Otyłość należy do głównych wyzwań współczesnej medycyny. Analiza bioimpedancyjna stanowi użyteczne narzędzie identyfikacji osób ze zwiększoną masą tkanki tłuszczowej. Niestety, sprzęt do analizy bioimpedancyjnej jest dość kosztowny, zwłaszcza w porównaniu z podstawowymi metodami antropometrycznymi. Celem pracy była ocena związku pomiędzy pomiarami antropometrycznymi a analizą bioimpedancyjną u pacjentów z niepowikłanym nadciśnieniem tętniczym. Materiał i metody: U 137 osób z nadciśnieniem tętniczym oceniono korelacje między ilością tkanki tłuszczowej (bezwzględnej, fat mass, FM; względnej, %FM) a parametrami antropometrycznymi (wskaźnik masy ciała, body mass index, BMI; obwód talii, waist circumference, WC; wskaźnik talia–biodra, waist-to-hip ratio, WHR; wskaźnik talia–wzrost, waistto-height ratio, WHtR; wskaźnik otłuszczenia ciała, body adiposity index, BAI; wskaźnik wisceralnej – trzewnej tkanki tłuszczowej, visceral adiposity index, VAI). Wyniki: Klasyczne pomiary antropometryczne korelowały z bioimpedancyjnymi wskaźnikami zawartości tkanki tłuszczowej: %FM vs BAI (R = 0,77), WHtR (R = −0,54), BMI (R = 0,52), WC (R = 0,29); FM vs BMI (R = 0,82), WC (R = 0,66), BAI (R = 0,58), VAI (R = 0,26), WHtR (R = 0,23), WHR (R = 0,19). U kobiet najsilniejszy związek z ilością tkanki tłuszczowej wykazywały BMI, WC i BAI, zaś u mężczyzn – WHtR i WC. Wnioski: Niektóre pomiary antropometryczne wykazują wysoką zgodność z analizą bioimpedancyjną i mogą być brane pod uwagę jako zastępcze wskaźniki oceny składu ciała w przypadku braku możliwości jej zastosowania. U kobiet z nadciśnieniem tętniczym najbardziej precyzyjne w ocenie %FM okazują się WC i BMI, podczas gdy u mężczyzn są to WHtR i WC.
Introduction: Resection is an optimal way of treatment of hepatic tumors and metastasis from another organs. Operational injury may influence on patients body composition examined by bioelectrical impedance (BIA). Analysis of parameters may be helpful in identifying early changes indicating of deterioration in nutritional status. Aim of the study: was to assess changes in body composition of patients before and after resection of liver tumors and potential radiofrequency ablation of lesions. Material and methods: The study included a group of 50 patients of the Department of General, Gastroenterological and Oncological Surgery, Medical University of Warsaw, who were qualified for radical surgical treatment of tumors within the liver. Data on water content, fat, muscle and cell mass were analyzed. Results: Comparing data obtained from patients before and after intervention in the liver, statistically significant (p < 0.05) loss of intracellular water, muscle mass, cell mass as well as adipose tissue was demonstrated. The phase angle value in these patients also significantly changed, decreasing by an average of 0.61°. On the other hand, the increase in content was noted in the case of extracellular water. Conclusions: Surgical intervention within the liver causes noticeable, unfavorable changes in the body composition, as evidenced by the reduction in the value of muscle mass, as well as cellular mass, resulting in a decrease in the phase angle. Bioelectric impedance is a suitable method for assessing changes in body composition of patients undergoing liver resection and is useful in clinical practice. It is advisable to conduct further research in the group of patients undergoing invasive treatment of the liver due to: an increasing number of such operations and centers where this type of surgical intervention is performe.
Purpose. The aim of this study was to observe the changes in body composition by using two measurement methods - anthropometric analysis and bioelectrical impedance analysis (BIA) - on a group female volleyball players and to compare the results of both methods. Methods. Eleven female volleyball players participated in this study during the 2010/2011 season. Measurements of body composition were performed with an electronic body composition analyzer (BIA method) adjusted for STANDARD physical activity levels and then using the anthropometric method as per Piechaczek's formula. Total lean body mass (LBM), total body fat content (FAT) and body water content were measured. Measurements were taken before preseason training (Measurement 0), one week before the end of preseason training (Measurement 1), after the first (Measurement 2) and the second (Measurement 3) half of the competitive season and four weeks after the seasons' playoffs during the offseason (Measurement 4). Additionally, during Measurement 4, body composition measured by the BIA method was adjusted for ATHLETIC physical activity levels. Results. Body mass, lean body mass and body water content did not change throughout the analyzed period. Body fat mass, as determined by BIASTANDARD, increased from 20.7 ± 5.3 kg (Measurement 0) to 22.2 ± 5.0 kg (Measurement 1) but subsequently decreased to 21.2 ± 5.7 kg (Measurement 2) and remained at this level until the end of the competitive season. In the case of body fat as measured by the anthropometric method, a significant increase in fat was observed from 18.4 ± 3.0 kg to 19.3 ± 3.4 kg and then from 19.5 ± 3.5 kg to 19.8 ± 3.6 kg. Analysis of LBM and FAT values found significant differences between the values obtained using the BIA method at the ATHLETIC physical activity level and the results registered at the STANDARD level and those recorded by use of the anthropometric method. Conclusions. The results obtained using the BIA method set at the STANDARD mode of physical activity and those by the anthropometric method did not significantly differ. Significant correlation between the values obtained by the BIA method and anthropometric method was found.
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