Most people now understand that to have a healthier body means to have a leaner body. These people are ready for Body Composition Analysis (BCA.) These pages will attempt to acquaint you with the most popular methods of BCA used in gyms, homes, and professional practices.
The Tanita Corporation recognizes the importance of education in helping to make the concept of body composition analysis understandable. They also believe people should know what methods of measurement exist and how these techniques work in order to decide which operation is right for their particular needs.
As body composition, rather than body weight, becomes an integral part of a person's health and fitness evaluation, Tanita predicts that analytical methods will be driven by scientific research and practical application - each with their own objectives.
Scientifically, body composition analysis will become more complex and precise with prediction equations capable of greater individualization. Various techniques may be combined to create a multifaceted view of the body where body fat and its distribution is just part of a person's fitness profile.
In terms of practical applications, body composition analysis will become simpler, more accessible, and easily affordable. It will redefine the traditional scale and reshape how people measure their bodies.
The Tanita Corporation is developing products to meet all these objectives. Tanita's goal is to provide people - whether they are medical researchers or consumers - with more information about the human body.
Comparison of Body Fat Analysis Methods
This chart clearly indicates that Tanita's BIA analyzer ranks highest overall based on speed, accuracy, ease of operation and convenience for the user.
| Measuring Method | Time Needed To Measure* | Accuracy | Convenience To User | Simplicity |
| Underwater Weighing | About 30 min | **** | * | * |
| DEXA | About 30 min | **** | ** | ** |
| Calipers | About 3 min | ** | ** | ** |
| MRI | About 30 min | ** | ** | ** |
| NIR (Infrared) | About 1 min | *** | *** | *** |
| BIA (Bioelectrical Impedance) | About 1 min | **** | *** | *** |
| Tanita's BIA | About 30 sec | **** | **** | **** |






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