The global population is getting older, and this comes with new health challenges. Research has shown that bioelectrical impedance analysis (BIA) can be used to measure muscle contractions, which are important for movement and stability. BIA involves sending a safe electrical current through the body and measuring the impedance, and the researchers found that the phase angle obtained from the leg using BIA can estimate muscle contractile properties. Larger phase angles indicate better muscle function and more force generation. This means that the phase angle can be a valuable tool for estimating muscular health. It can be measured easily and quickly, even by home weighing scales with body composition analyzers. As the population ages, insights into muscular health will be important to help individuals take proactive measures and for countries to develop policies prioritizing the muscular health of the older population. This research was published on 23 November 2023 in Volume 14 of the journal Frontiers in Physiology.

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