851 ESTIMATION OF LEAN BODY MASS FROM ARM CIRCUMFERENCE AND SKINFOLD THICKNESS

Abstract Erythrocyte volume, plasma volume, hematocrit, lean body mass (from total body water), skinfold thickness (at three sites), arm circumference, height, and weight were measured in 40 normal males, 38 normal females, and 12 obese females. From these data on the normal subjects, equations for estimating erythrocyte and plasma volumes were derived. Equations utilizing combined height-weight, surface area, height-weight-skinfold thickness, or lean body mass were found to be the most accurate for predicting erythrocyte and plasma volumes in normal and in obese subjects. The body:venous hematocrit ratio (BH:VH) and the variability of this ratio in our subjects were determined and discussed. Errors in indirect estimates of blood volumes based on this ratio are presented. Erythrocyte and plasma volume standards based on height-weight regression equations or surface area ratio equation are suggested for use in clinical laboratories. Tables and a nomogram based on these equations have been prepared and are available on request.

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A comparison of measurements of lean body mass derived by bioelectrical impedance, skinfold thickness and total body potassium. A study in obese and non-obese normal subjects

Scandinavian Journal of Clinical and Laboratory Investigation ◽

10.3109/00365519109091611 ◽

1991 ◽

Vol 51 (3) ◽

pp. 245-253 ◽

Cited By ~ 23

Author(s):

G. R. Fulcher ◽

M. Farrer ◽

M. Walker ◽

D. Rodham ◽

B. Clayton ◽

...

Keyword(s):

Lean Body Mass ◽

Body Mass ◽

Bioelectrical Impedance ◽

Normal Subjects ◽

Skinfold Thickness ◽

Total Body Potassium ◽

Total Body

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Relation between plasma creatinine and body size.

Clinical Chemistry ◽

10.1093/clinchem/32.2.371 ◽

1986 ◽

Vol 32 (2) ◽

pp. 371-373 ◽

Cited By ~ 18

Author(s):

R Swaminathan ◽

C S Ho ◽

L M Chu ◽

S Donnan

Keyword(s):

Regression Analysis ◽

Body Size ◽

Lean Body Mass ◽

Body Mass ◽

Linear Regression Analysis ◽

Skinfold Thickness ◽

Multiple Linear Regression Analysis ◽

Healthy Individuals ◽

Creatinine Concentration ◽

The Relationship

Abstract We studied the relationship between creatinine concentration in plasma and body size in 673 healthy individuals (385 women, 288 men). Weight, height, and skinfold thickness were measured and blood was sampled (after a short fast) for estimations of urea and creatinine in plasma. Lean body mass was calculated according to Durnin and Wormsley (Br J Nutr 1974; 32:77-97). Concentrations of urea and creatinine in plasma were significantly lower in women than in men and were significantly correlated with age in both sexes. For neither sex was there a significant correlation between lean body mass and creatinine concentration, even after we took age into account either by multiple linear-regression analysis or by considering subjects at decade intervals.

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Defining Pediatric Failure to Thrive in the Developed World: Validation of a Semi-Objective Diagnosis Tool

Clinical Pediatrics ◽

10.1177/0009922818821891 ◽

2018 ◽

Vol 58 (4) ◽

pp. 446-452 ◽

Cited By ~ 2

Author(s):

Catherine Larson-Nath ◽

Alisha Mavis ◽

Lori Duesing ◽

Megan Van Hoorn ◽

Cassandra Walia ◽

...

Keyword(s):

Body Mass Index ◽

Body Mass ◽

Predictive Validity ◽

Failure To Thrive ◽

Skinfold Thickness ◽

Arm Circumference ◽

Z Scores ◽

Diagnosis Tool ◽

Mid Upper Arm Circumference ◽

Developed World

There is no concordance between current diagnostic criteria for failure to thrive (FTT). We analyzed validity of the Semi-Objective Failure to Thrive (SOFTT) diagnosis tool, which uses a combination of subjective and objective components to make the diagnosis of FTT. The tool was used to diagnose FTT in 94 patients who met 1 of 7 accepted criteria for FTT. Concurrent and predictive validity were demonstrated using anthropometric z-scores and change in anthropometric z-scores, respectively. SOFTT results correlated with differences in anthropometric z-scores for length ( P = .011), weight, weight-for-length, body mass index, mid-upper arm circumference, and triceps skinfold thickness ( P < .0001) between those diagnosed as normal and those with FTT. At follow-up, children with FTT compared with children rated as normal had significantly higher change in weight ( P ≤ .001) and body mass index ( P = .026) z-scores. The SOFTT tool leads to the accurate diagnosis of FTT demonstrated by concurrent and predictive validity.

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Weight retention within the puerperium in adolescents: a risk factor for obesity?

Public Health Nutrition ◽

10.1017/s1368980009991352 ◽

2009 ◽

Vol 13 (2) ◽

pp. 283-288 ◽

Cited By ~ 9

Author(s):

Minerva M Thame ◽

Maria D Jackson ◽

Inger P Manswell ◽

Clive Osmond ◽

Matthias G Antoine

Keyword(s):

Older Women ◽

Lean Body Mass ◽

Body Mass ◽

Adolescent Girls ◽

Fat Mass ◽

Skinfold Thickness ◽

Antenatal Visit ◽

Dietary Intakes ◽

Weight Retention ◽

Significant Difference

AbstractObjectiveThe present study aimed to investigate weight retention and body composition in the postpartum period between adolescent girls and older women.DesignA prospective cohort study. Anthropometry and skinfold thickness measurements were performed at the first antenatal visit and at 6 weeks postpartum. An FFQ was administered at 6 weeks postpartum to explore the relationship between diet and postpartum weight retention.SettingClinics at the University of the West Indies, Kingston, Jamaica.SubjectsRecruitment included women aged 19 years and younger (adolescent girls) and 20 years and older (older women).ResultsThree hundred and forty women were studied. Adolescent girls had significantly lower measurements compared with the older women at the first antenatal visit and at 6 weeks postpartum. Dietary intakes of energy and macronutrients were similar in both groups. Postnatal assessments showed that adolescent girls retained more weight (P= 0·003) and a greater percentage of body fat (P< 0·002) than older women. In multiple regression analyses, 0·982 kg more fat mass was retained postpartum in the adolescent group compared with the older women, while there was no significant difference in lean body mass retained between the two groups.ConclusionsAdolescent girls retained more weight postpartum and this was predominantly fat mass as opposed to lean body mass.

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