{"id":35478,"date":"2020-06-11T17:32:24","date_gmt":"2020-06-11T15:32:24","guid":{"rendered":"https:\/\/getindya.com\/?p=35478"},"modified":"2026-11-03T17:12:45","modified_gmt":"2026-11-03T16:12:45","slug":"bioimpedance-scales-how-to-use","status":"publish","type":"post","link":"https:\/\/getindya.com\/en\/bioimpedance-scales-how-to-use\/","title":{"rendered":"Bioimpedance scales: what they are and how to use them"},"content":{"rendered":"\n

In <\/span>What is body composition and how do you calculate your<\/span> body-fat percentage?<\/b><\/span><\/a> we answered several questions. Now we focus on one common assessment method: bioelectrical impedance analysis (BIA).<\/span><\/p>\n\n\n\n

Bioimpedance scales offer a convenient way to estimate <\/strong>body composition<\/span>, including fat percentage, muscle mass and other outputs. <\/span>But there are important questions about their use and reliability.<\/p>\n\n\n\n

Can you trust the body-fat percentage? What types of scales exist? Which features help track fat and muscle?<\/span><\/i><\/p>\n\n\n\n

Here you will find answers, tips for more consistent measurements<\/strong> and a selection of BIA scales<\/strong> for personal use. The original introduction mentions 10, but the article describes two.<\/span><\/p>\n\n\n\n

What is a bioimpedance scale?<\/b><\/h2>\n\n\n\n

A <\/span>bioimpedance scale<\/b> uses a small electrical current to help estimate body fat, muscle and <\/span>body water<\/span><\/a>. These are estimates, not direct measurements of every tissue. Used appropriately, they can support progress tracking and discussion of nutrition and training.<\/span><\/p>\n\n\n\n

What is bioelectrical impedance, and how does it work?<\/b><\/h3>\n\n\n\n


<\/span>BIA is an accessible, straightforward, doubly indirect body-composition assessment. Follow device instructions, including restrictions for implanted electronic devices and other relevant conditions.<\/span><\/p>\n\n\n\n

The device applies a current and measures the body’s impedance. Conductivity differs with tissue water and electrolytes. Fat tissue generally contains less water than fat-free tissues, so higher fat levels can be associated with greater impedance under comparable conditions<\/strong>, though the relationship depends on the model and person.<\/span><\/p>\n\n\n\n

BIA does not directly measure fat or muscle<\/strong>. It measures impedance, expressed in ohms, at a current frequency expressed in hertz. Equations then incorporate variables such as weight and age. Not all scales use the same equations.<\/strong><\/span><\/p>\n\n\n\n

Many use manufacturers’ equations that are not validated for every population. An equation developed in Japanese male athletes aged 21\u201327 may not generalise well to a sedentary white woman aged 75.<\/span><\/p>\n\n\n\n

At the<\/span> INDYA centre in Valencia<\/a>,<\/b> we use bioimpedance or anthropometry according to individual needs. Read <\/span><\/span>Anthropo<\/span>metry: what it is, what it measures and why it matters<\/b><\/a><\/span> for more.<\/p>\n\n\n\n

What are the advantages of BIA?<\/span><\/h2>\n\n\n\n