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Development of realistic high-resolution whole-body voxel models of Japanese adult males and females of average height and weight, and application of models to radio-frequency electromagnetic-field dosimetry.

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Nagaoka T, Watanabe S, Sakurai K, Kunieda E, Watanabe S, Taki M, Yamanaka Y · 2004

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SAR absorption varies significantly by body type, suggesting current one-size-fits-all EMF safety standards may inadequately protect diverse populations.

Plain English Summary

Summary written for general audiences

Japanese researchers created the first detailed computer models of Asian adults to study how radio frequency radiation is absorbed by the human body. These high-resolution models, built from MRI scans, can calculate specific absorption rate (SAR) - the amount of RF energy absorbed per kilogram of body tissue - for frequencies up to 3 GHz, which includes cell phone radiation. The models provide critical data for understanding how different body types absorb electromagnetic energy differently.

Why This Matters

This groundbreaking research fills a crucial gap in EMF safety standards, which have historically been based on Western body types and may not accurately reflect absorption patterns in Asian populations. The study's significance extends beyond demographics - it demonstrates that SAR calculations, the cornerstone of current safety limits, vary significantly based on individual anatomy and body composition. What this means for you is that the 'one-size-fits-all' approach to EMF safety standards may be fundamentally flawed. The reality is that your personal RF absorption depends on factors like your height, weight, and body composition - variables that current regulations largely ignore. This research underscores why precautionary approaches to EMF exposure make scientific sense, especially given that safety standards were never designed to account for individual biological differences.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

To investigate development of realistic high-resolution whole-body voxel models of Japanese adult males and females of average height and weight, and application of models to radio-frequency electromagnetic-field dosimetry

With advances in computer performance, the use of high-resolution voxel models of the entire human b...

The adult female model is the first of its kind in the world and both are the first Asian voxel mode...

Cite This Study
Nagaoka T, Watanabe S, Sakurai K, Kunieda E, Watanabe S, Taki M, Yamanaka Y (2004). Development of realistic high-resolution whole-body voxel models of Japanese adult males and females of average height and weight, and application of models to radio-frequency electromagnetic-field dosimetry. Phys Med Biol. 49(1):1-15, 2004.
Show BibTeX
@article{t_2004_development_of_realistic_highresolution_2456,
  author = {Nagaoka T and Watanabe S and Sakurai K and Kunieda E and Watanabe S and Taki M and Yamanaka Y},
  title = {Development of realistic high-resolution whole-body voxel models of Japanese adult males and females of average height and weight, and application of models to radio-frequency electromagnetic-field dosimetry.},
  year = {2004},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/14971769/},
}

Quick Questions About This Study

Japanese researchers created the first detailed computer models of Asian adults to study how radio frequency radiation is absorbed by the human body. These high-resolution models, built from MRI scans, can calculate specific absorption rate (SAR) - the amount of RF energy absorbed per kilogram of body tissue - for frequencies up to 3 GHz, which includes cell phone radiation. The models provide critical data for understanding how different body types absorb electromagnetic energy differently.