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Air-displacement plethysmography: here to stay
David A Fields1, Paul B Higgins, Duncan Radley
1Department of Pediatrics, University of Oklahoma Health Science Center, Children's Medical Research Institute's Metabolic Research Center, Oklahoma City, Oklahoma 73104, USA. dfields@ouhsc.edu
Current Opinion in Clinical Nutrition and Metabolic Care
|October 6, 2005
Summary
Air-displacement plethysmography (ADP) is a practical tool for body composition assessment. Recent studies confirm its reliability, though further research is needed for specific populations and error sources.
Area of Science:
- Body composition analysis
- Biomedical engineering
- Human physiology
Background:
- Traditional body composition methods have limitations.
- Air-displacement plethysmography (ADP) offers a promising alternative.
- Understanding ADP's validity and application in diverse populations is crucial.
Purpose of the Study:
- To review recent findings on the validity and precision of ADP.
- To focus on ADP's application in infants and other specific populations.
- To identify factors influencing ADP's accuracy.
Main Methods:
- Literature review of studies published since 2004.
- Analysis of mechanistic findings related to measurement issues.
- Synthesis of data on ADP's reliability and precision.
Main Results:
- Key findings address measurement issues: heat, moisture, clothing, and inter-device variability.
- Recent research highlights mechanistic factors influencing ADP accuracy.
- Evidence supports ADP's precision and validity across various studies.
Conclusions:
- Air-displacement plethysmography (ADP) is a practical and reliable instrument for body composition assessment.
- Further research is warranted for its use in pediatric and obese populations.
- Investigating sources of measurement error in ADP is essential for optimizing its application.
