Validity and reliability of body composition analysers in children and adults

Jensky-Squires, Nicole E.; Dieli‐Conwright, Christina M.; Rossuello, Amerigo; Erceg, David N.; McCauley, Scott A.; Schroeder, E. Todd

doi:10.1017/s0007114508925460

Cited by 137 publications

(83 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The bioelectrical impedance analysis was performed with subjects dressed only in their underwear (with all jewelery removed). The validity and reliability of this specific bioelectrical impedance analyzer in adult men has been reported by Jensky-Squires et al (14).…”

mentioning

confidence: 53%

“…Body composition analysis was performed early in the morning after a night of fasting on the first and the last day of each supplementation period with the Inbody 320 (BioSpace, Seoul, Korea), a bioelectrical impedance analyzer. The device uses 8 points of tactile electrodes (contact at the hands and feet) and 3 frequencies (5, 50, and 200 kHz) to measure body mass (kilograms), body fat mass (kilograms), lean body mass (kilograms) and intra-and extracellular water (14). All subjects were asked to empty their bladders immediately before the measurements.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Effect of Conjugated Linoleic Acid on Testosterone Levels In Vitro and In Vivo After an Acute Bout of Resistance Exercise

Macaluso

Morici

Catanese

et al. 2012

Journal of Strength and Conditioning Research

View full text Add to dashboard Cite

and Di Felice, V. Effect of conjugated linoleic acid on testosterone levels in vitro and in vivo after an acute bout of resistance exercise. J Strength Cond Res 26(6): 1667-1674, 2012-The purposes of the present study were to investigate the effect of conjugated linoleic acid (CLA) supplementation on testosterone levels in vitro on a cell line derived from Leydig cells (R2C) and in vivo in the blood of physically active subjects before and after a resistance exercise bout. In vitro R2C cells were treated with different CLA concentrations (0-30 mM) for 24 and 48 hours. After treatment, supernatant media were tested to determine testosterone secretion. The CLA increased the testosterone secretion only after 48 hours. In vivo, 10 resistance-trained male subjects, in a double-blind placebo-controlled and crossover study design were randomized for 3 weeks of either 6 gÁd 21 CLA or placebo. Blood was drawn pre and post each resistance exercise bout to determine the total testosterone and sex hormone-binding globulin (SHBG) levels. No significant differences were observed for total testosterone or SHBG pre and post each resistance exercise bout; although after the resistance exercise bouts, total testosterone increased moderately (effect size = moderate), whereas after CLA supplementation, there was a large increase in total testosterone (effect size = large). CLA supplementation induced an increase in testosterone levels in Leydig cells in vitro after 48 hours but not in vivo before and after a resistance exercise bout. These findings suggest that CLA supplementation may promote testosterone synthesis through a molecular pathway that should be investigated in the future, although this effect did not have an anabolic relevance in our in vivo model.

show abstract

mentioning

confidence: 53%

mentioning

confidence: 99%

Effect of Conjugated Linoleic Acid on Testosterone Levels In Vitro and In Vivo After an Acute Bout of Resistance Exercise

Macaluso

Morici

Catanese

et al. 2012

Journal of Strength and Conditioning Research

View full text Add to dashboard Cite

show abstract

“…Height was measured to the nearest 0.5 cm using a professional‐grade height rod (Seca 769, Hanover, MD). Weight, fat mass, and lean mass were measured to the nearest 0.1 kg using a multifrequency bioelectrical impedance analyzer (InBody 720, BioSpace Inc, Cerritos, CA), which has demonstrated excellent reliability (coefficient of variation=1.8%)30 and strong criterion validity when compared to dual‐energy x‐ray absorptiometry among obese adults (intraclass correlation=0.83 for fat mass; intraclass correlation=0.90 for fat‐free mass)31 and healthy adults ( r =0.80–0.91 for body composition) 30. Participants completed an online questionnaire that assessed general demographics (eg, age, sex, ethnicity, education, race, income, and marital status), and occupation category; Table 1).…”

Section: Methodsmentioning

confidence: 99%

Gamifying Accelerometer Use Increases Physical Activity Levels of Sedentary Office Workers

Gremaud

Carr

Simmering

et al. 2018

JAHA

View full text Add to dashboard Cite

BackgroundSedentary work is hazardous. Over 80% of all US jobs are predominantly sedentary, placing full‐time office workers at increased risk for cardiovascular and metabolic morbidity and mortality. Thus, there is a critical need for effective workplace physical activity interventions. MapTrek is a mobile health platform that gamifies Fitbit use for the purpose of promoting physical activity. The purpose of this study was to test the efficacy of MapTrek for increasing daily steps and moderate‐intensity steps over 10 weeks in a sample of sedentary office workers.Methods and ResultsParticipants included 146 full‐time sedentary office workers aged 21 to 65 who reported sitting at least 75% of their workday. Each participant received a Fitbit Zip to wear daily throughout the intervention. Participants were randomized to either a: (1) Fitbit‐only group or 2) Fitbit + MapTrek group. Physical activity outcomes and intervention compliance were measured with the Fitbit activity monitor. The Fitbit + MapTrek group significantly increased daily steps (+2092 steps per day) and active minutes (+11.2 min/day) compared to the Fitbit‐only arm, but, on average, participants’ steps declined during the study period.ConclusionsMapTrek is an effective approach for increasing physical activity at a clinically meaningful level in sedentary office workers, but as with accelerometer use alone, the effect decreases over time.Clinical Trial Registration URL: https://www.clinicaltrials.gov. Unique identifier: NCT03109535.

show abstract

“…Body composition, including lean mass (kg) and fat mass (kg), were measured by bioelectrical impedance analysis (BIA; Inbody 3.0 and 4.0; Biospace Company Ltd., Seoul, Korea). BIA is known to be a reliable method for assessing body composition in the general population and patients with CKD [14,15]. Lean mass index (LMI) and fat mass index (FMI) were calculated by mass (kg) divided by the square of the height (m), respectively.…”

Section: Methodsmentioning

confidence: 99%

Age- and Gender-Dependent Correlations between Body Composition and Chronic Kidney Disease

Han¹,

Heo²,

et al. 2009

Am J Nephrol

View full text Add to dashboard Cite

Background: Body mass index (BMI) is a predictor of chronic kidney disease (CKD) in the general population. Here, we evaluated the association between BMI, body composition and CKD according to age and gender. Methods: We examined 75,127 adults between 2005 and 2008. Odds ratios for CKD were calculated between two age groups (a younger group, aged <65 years, and an elderly group, aged ≧65 years) using BMI, lean mass index (LMI, lean mass divided by the square of height), fat mass index (FMI, fat mass divided by the square of height), waist circumference and the lean mass-to-fat mass ratio (LFR). Results: The elderly group comprised 8.9% of the population, and 7.4% of all subjects had CKD. By multivariate analysis, BMI was positively correlated with CKD, but FMI was negatively correlated in the younger group. LMI was not associated with CKD in the younger group. In the elderly group, BMI, FMI and waist circumference were positively correlated with CKD. However, LMI and LFR were negative predictors of CKD. In female subjects, the correlation trends in the younger and the elderly group were opposite. Conclusions: The associations between BMI, body composition and CKD differed according to age and gender stratifications.

show abstract

Validity and reliability of body composition analysers in children and adults

Cited by 137 publications

References 26 publications

Effect of Conjugated Linoleic Acid on Testosterone Levels In Vitro and In Vivo After an Acute Bout of Resistance Exercise

Effect of Conjugated Linoleic Acid on Testosterone Levels In Vitro and In Vivo After an Acute Bout of Resistance Exercise

Gamifying Accelerometer Use Increases Physical Activity Levels of Sedentary Office Workers

Age- and Gender-Dependent Correlations between Body Composition and Chronic Kidney Disease

Contact Info

Product

Resources

About