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Janse van Mantgem MR, Soors D'Ancona ML, Meyjes M, Van Den Berg LH, Steenhagen E, Kok A, Van Eijk RPA. A comparison between bioelectrical impedance analysis and air-displacement plethysmography in assessing fat-free mass in patients with motor neurone diseases: a cross-sectional study. Amyotroph Lateral Scler Frontotemporal Degener 2024; 25:326-335. [PMID: 38265049 DOI: 10.1080/21678421.2023.2300963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/20/2023] [Indexed: 01/25/2024]
Abstract
AIM To determine the validity of bioelectrical impedance analysis (BIA) in quantifying fat-free mass (FFM) compared to air-displacement plethysmography (ADP) in patients with a motor neurone disease (MND). METHODS FFM of 140 patients diagnosed with MND was determined by ADP using the BodPod (i.e. the gold standard), and by BIA using the whole-body Bodystat. FFM values were translated to predicted resting energy expenditure (REE); the actual REE was measured using indirect calorimetry, resulting in a metabolic index. Validity of the BIA compared to the ADP was assessed using Bland-Altman analysis and Pearson's r. To assess the clinical relevance of differences, we evaluated changes in metabolic index and in individualized protein demand. RESULTS Despite the high correlation between ADP and BIA (r = 0.93), averaged across patients, the assessed mean fat-free mass was 51.7 kg (± 0.9) using ADP and 54.2 kg (± 1.0) using BIA. Hence, BIA overestimated fat-free mass by 2.5 kg (95% CI 1.8-3.2, p < 0.001). Clinically, an increased metabolic index would be more often underdiagnosed in patients with MND using BIA (31.4% according to BIA versus 44.2% according to ADP, p = 0.048). A clinically relevant overestimation of ≥ 15 g in protein demand was observed for 4 (2.9%) patients using BIA. CONCLUSIONS BIA systematically overestimates FFM in patients with MND. Although the differences are limited with ADP, underscoring the utility of BIA for research, overestimation of fat-free mass may have consequences for clinical decision-making, especially when interest lies in determining the metabolic index.
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Affiliation(s)
- Mark R Janse van Mantgem
- Department of Neurology, UMC Utrecht Brain Centre, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Maaike L Soors D'Ancona
- Department of Neurology, UMC Utrecht Brain Centre, University Medical Centre Utrecht, Utrecht, The Netherlands
- Department of Dietetics, University Medical Centre Utrecht, Utrecht, The Netherlands, and
| | - Myrte Meyjes
- Department of Neurology, UMC Utrecht Brain Centre, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Leonard H Van Den Berg
- Department of Dietetics, University Medical Centre Utrecht, Utrecht, The Netherlands, and
| | - Elles Steenhagen
- Department of Dietetics, University Medical Centre Utrecht, Utrecht, The Netherlands, and
| | - Annemieke Kok
- Department of Dietetics, University Medical Centre Utrecht, Utrecht, The Netherlands, and
| | - Ruben P A Van Eijk
- Department of Dietetics, University Medical Centre Utrecht, Utrecht, The Netherlands, and
- Biostatistics & Research Support, Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands
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Liu X, He M, Li Y. Adult obesity diagnostic tool: A narrative review. Medicine (Baltimore) 2024; 103:e37946. [PMID: 38669386 PMCID: PMC11049696 DOI: 10.1097/md.0000000000037946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024] Open
Abstract
Obesity is a complex chronic metabolic disorder characterized by abnormalities in lipid metabolism. Obesity is not only associated with various chronic diseases but also has negative effects on physiological functions such as the cardiovascular, endocrine and immune systems. As a global health problem, the incidence and prevalence of obesity have increased significantly in recent years. Therefore, understanding assessment methods and measurement indicators for obesity is critical for early screening and effective disease control. Current methods for measuring obesity in adult include density calculation, anthropometric measurements, bioelectrical impedance analysis, dual-energy X-ray absorptiometry, computerized imaging, etc. Measurement indicators mainly include weight, hip circumference, waist circumference, neck circumference, skinfold thickness, etc. This paper provides a comprehensive review of the literature to date, summarizes and analyzes various assessment methods and measurement indicators for adult obesity, and provides insights and guidance for the innovation of obesity assessment indicators.
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Affiliation(s)
- Xiaolong Liu
- School of Life & Environmental Sciences, Guilin University of Electronic Technology, Guilin, Guangxi, China
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin, Guangxi, China
- Rehabilitation College, Guilin Life and Health Career Technical College, Guilin, Guangxi, China
| | - Mengxiao He
- School of Physical Education and Health, Guilin University, Guilin, Guangxi, China
| | - Yi Li
- School of Physical Education and Health, Guilin University, Guilin, Guangxi, China
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Chen F, Wu L, Chen Y, Wang J, Liu J, Huang G, Hou D, Liao Z, Zhang T, Xie X, Liu G. A comparison of bioelectrical impedance analysis and air displacement plethysmography to assess body composition in children. Front Public Health 2023; 11:1164556. [PMID: 37469700 PMCID: PMC10352489 DOI: 10.3389/fpubh.2023.1164556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 06/13/2023] [Indexed: 07/21/2023] Open
Abstract
Background Accurate assessment of body composition (BC) is important to investigate the development of childhood obesity. A bioelectrical impedance analysis (BIA) device is portable and inexpensive compared with air displacement plethysmography (ADP) for the assessment of BC and is widely used in children. However, studies of the effectiveness of BIA are few and present different results, especially in pediatric populations. The aim of this study was to evaluate the agreement between BIA and ADP for estimating BC. Methods The BC of 981 Chinese children (3-5 years) was measured using the BIA device (SeeHigher BAS-H, China) and ADP (BOD POD). Results Our results showed that BIA underestimated fat mass (FM) and overestimated fat-free mass (FFM) in normal weight children (P < 0.05), but the opposite trend was shown in children with obesity (P < 0.05). The agreement between FM and FFM measured by the two methods was strong (CCC > 0.80). The linear regression equation of 5-year-old children was constructed. Conclusion The SeeHigher BAS-H multi-frequency BIA device is a valid device to evaluate BC in Chinese preschool children compared with ADP (BOD POD), especially in 5-year-old children or children with obesity. Further research is needed to standardize the assessment of BC in children.
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Affiliation(s)
- Fangfang Chen
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Lijun Wu
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Yiren Chen
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Jing Wang
- Tianjin Women's and Children's Health Center, Tianjin, China
| | - Junting Liu
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Guimin Huang
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Dongqing Hou
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Zijun Liao
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Ting Zhang
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Xianghui Xie
- Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China
| | - Gongshu Liu
- Tianjin Women's and Children's Health Center, Tianjin, China
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Muntean P, Popa A, Miclos-Balica M, Schick F, Munteanu O, Pupazan V, Neagu A, Neagu M. Learning Effects in Air Displacement Plethysmography. Life (Basel) 2023; 13:1315. [PMID: 37374098 DOI: 10.3390/life13061315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Air displacement plethysmography (ADP) is a widespread technique for assessing global obesity in both health and disease. The reliability of ADP has been demonstrated by studies focused on duplicate trials. The present study was purported to evaluate learning effects on the reliability of body composition assessment using the BOD POD system, the sole commercially available ADP instrument. To this end, quadruplicate trials were performed on a group of 105 subjects (51 women and 54 men). We estimated measurement error from pairs of consecutive trials-(1,2), (2,3), and (3,4)-to test the hypothesis that early measurements are subject to larger errors. Indeed, statistical analysis revealed that measures of reliability inferred from the first two trials were inferior to those computed for the other pairs of contiguous trials: for percent body fat (%BF), the standard error of measurement (SEM) was 1.04% for pair (1,2), 0.71% for pair (2,3), and 0.66% for pair (3,4); the two-way random effects model intraclass correlation coefficient (ICC) was 0.991 for pair (1,2), and 0.996 for pairs (2,3) and (3,4). Our findings suggest that, at least for novice subjects, the first ADP test should be regarded as a practice trial. When the remaining trials were pooled together, the reliability indices of single ADP tests were the following: ICC = 0.996, SEM = 0.70%, and minimum detectable change (MDC) = 1.93% for %BF, and ICC = 0.999, SEM = 0.49 kg, and MDC = 1.35 kg for fat-free mass (FFM). Thus, the present study pleads for eliminating learning effects to further increase the reliability of ADP.
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Affiliation(s)
- Paul Muntean
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
- Center for Modeling Biological Systems and Data Analysis, "Victor Babeș" University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania
- Department of Rehabilitation, Physical Medicine and Rheumatology, Research Center for Assessment of Human Motion, Functionality and Disability, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
| | - Anca Popa
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
| | - Monica Miclos-Balica
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
- Center for Modeling Biological Systems and Data Analysis, "Victor Babeș" University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania
| | - Falk Schick
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
| | - Oana Munteanu
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
| | - Vasile Pupazan
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
| | - Adrian Neagu
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
- Center for Modeling Biological Systems and Data Analysis, "Victor Babeș" University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania
- Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA
| | - Monica Neagu
- Department of Functional Sciences, "Victor Babeș" University of Medicine and Pharmacy of Timișoara, 300041 Timisoara, Romania
- Center for Modeling Biological Systems and Data Analysis, "Victor Babeș" University of Medicine and Pharmacy of Timisoara, 300041 Timisoara, Romania
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Yin M, Lee EJ. Exposure to loneliness cues reduces prosocial behavior: Evidence from N400 and P300. Front Psychol 2023; 14:1094652. [PMID: 37138978 PMCID: PMC10150042 DOI: 10.3389/fpsyg.2023.1094652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 03/29/2023] [Indexed: 05/05/2023] Open
Abstract
Loneliness is a major risk factor for morbidity and mortality. However, the effect of loneliness on subsequent prosocial behavior is not well known. Understanding the neurobiological mechanisms underlying loneliness is necessary to address this research gap. We investigate the mechanism using a modified public goods game (PGG) wherein participants can choose to act for a collective or selfish interest after being exposed to loneliness cues. Both behavioral (Study 1) and event-related potential (ERP) (Study 2) measures were used to explore this relationship. In Study 1 (N = 131), we found that participants exhibited decreased prosocial actions under the loneliness priming condition as opposed to the control condition. In Study 2 (N = 17), frontal N400 and posterior P300 components were identified under the loneliness priming condition as opposed to the control condition. Increased (decreased) frontal N400 and posterior P300 lead to selfish (prosocial) choices. These results indicate that humans instinctively perceive loneliness as inconsistency with their desired social-relational life, which in turn stimulates coping strategies for self-preservation. This study contributes to our understanding of the neurobiological basis of loneliness associated with prosocial behavior.
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Affiliation(s)
- Meiling Yin
- Business School, Sungkyunkwan University, Seoul, Republic of Korea
| | - Eun-Ju Lee
- Business School, Sungkyunkwan University, Seoul, Republic of Korea
- Neuro Intelligence Center, Sungkyunkwan University, Seoul, Republic of Korea
- *Correspondence: Eun-Ju Lee,
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