Health information

About Sarcopenia and Effective Prevention Methods


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"How to prevent sarcopenia through a proper nutrition plan"



  • What is Sarcopenia?

    Sarcopenia is a condition characterized by the age-related loss of muscle mass, strength, and function. After the age of 30, the human body loses about 1% of its muscle mass annually, and this rate of decline accelerates after the age of 60.

    However, sarcopenia is not merely a decrease in muscle mass. It is diagnosed when both muscle mass and strength decline simultaneously, as confirmed through various tests and analyses. This condition has been reported to increase the impairment of daily living activities by three times, the risk of falls by 3.5 times, fractures by 2-3 times, and the mortality rate by approximately 3-4 times.

    1. The Relationship Between Sarcopenia and Hip Fractures
    Sarcopenia extends beyond a simple reduction in muscle mass; it causes a decline in walking ability and a loss of balance, thereby significantly increasing the risk of falls and fractures.
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  • This can lead to a vicious cycle where reduced mobility decreases physical activity, which in turn accelerates muscle loss. To stand upright, the human body utilizes various anti-gravity muscles. When muscle mass and strength decline, these muscles cannot perform their functions properly, eventually leading to a loss of balance and resulting in falls.
     
    2. Sarcopenia Self-Diagnosis Tests
    According to the criteria published in 2023 by the European Working Group on Sarcopenia in Older People (EWGSOP2), sarcopenia is diagnosed by a comprehensive evaluation of three factors: muscle strength, muscle mass, and physical performance.  

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  • Here are two tests that can be easily performed at home without special equipment. 

    a. Chair Stand Test
    88ea10829a85e.png Measure the time it takes to stand up and sit down from a chair five times without using your arms. If it takes more than 15 seconds, sarcopenia may be suspected.

  • b. Timed Up & Go (TUG) Test
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  • Measure the time it takes to stand up from a chair, walk 3 meters, turn around, walk back, and sit down again.

    • Less than 10 seconds: Normal

    • 10-20 seconds: Able to move independently, but a potential for functional impairment.

    • More than 20 seconds: High probability of functional impairment; further evaluation is neede

      * The TUG test, in particular, is also used as a gait assessment for neurological conditions such as stroke and Parkinson's disease, so its results can provide insights into these conditions as well as sarcopenia.

      3. Prevention Methods
      To prevent sarcopenia, two elements are essential: exercise and a proper nutrition plan.

      a. Exercise 
       
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    • We would like to introduce the recommended heart rate chart by age from the American College of Sports Medicine (ACSM), which is widely used as a standard for exercise guidelines. 
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    • While various exercises can increase the heart rate, walking or light jogging is recommended for older adults. Exercise in Zone 2 is most recommended. Zone 2 corresponds to a heart rate at which normal breathing is possible, yet you are slightly out of breath, and can still maintain a conversation with someone next to you. 

      b. Nutrition Plan
       Maintaining the right balance of carbohydrates, protein, and fat is crucial. A ratio of 4:3:3 is generally considered ideal for a nutrition plan. For protein, the recommended daily intake for adults, as suggested by food and drug administrations, is 1.0-1.2 grams per kilogram of body weight. For example, a 60kg adult should consume approximately 60g of protein per day.
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      Many older adults compose their diets primarily of vegetables for health reasons. However, such a dietary approach lacks sufficient animal protein and is not effective in preventing sarcopenia. It is advisable to include at least one source of animal or plant-based protein in each meal.

      For instance, one egg contains about 7g of protein, so including two eggs in your meal plan can help create a well-balanced intake. However, eggs are just one example. Protein is also found in meat, seafood, and foods like tofu, so it is recommended to obtain nutrients from a variety of food sources.


      We have introduced testing and prevention methods to effectively prevent sarcopenia. While physical changes with aging are inevitable, it is entirely possible to guide these changes in a positive direction. We will return with more informative content to support the healthy later years of our seniors.


      Sarcopenia is not just a loss of muscle mass.
      It is a serious risk that can lead to falls and compromise an individual's independence.

      The best prevention is to manage sarcopenia early and adopt habits that reduce the risk of falls in daily life.