Sarcopenia is defined as a loss of muscle mass in combination with changes in physical function and muscle quality caused by aging or chronic diseases. Common causes of sarcopenia are an imbalance of sex hormones and a lack of physical activity, which is why sarcopenia, apart from the elderly, can also occur in the younger population. There are quick and simple tests for the diagnosis of sarcopenia, but they are still not sufficiently recognized and regularly used as part of physiotherapy assessment. The aim of this work is to increase awareness of the simplicity, ease and necessity of conducting tests for the diagnosis of sarcopenia. We conducted testing on 9 randomly selected subjects of different age groups and different body mass index (BMI). The examination consisted of Questionnaire for Assessment of Strength, Assisted Walking, Rising from a Chair, Climbing Stairs and Falls (SARC-F), Short Physical PerformanceBattery Test (SPPB), Timed Up and Go (TUG) and Manual Muscle Test (MMT). . The testing lasted only 10 to 15 minutes per participant. The results of all subjects indicated an extremely low risk of sarcopenia or no risk at all. Although the results of the participant's tests are similar, noticeable differences between the subjects are visible in the results of the SPPB test in which 4 subjects of different ages showed signs of minor physical limitation, but not enough to establish the risk of sarcopenia. The risk of sarcopenia arises already at a young age, and if it is not recognized and treated in time, its consequences directly affect the quality of life, starting with disability and ending with morbidity. This research proved the simplicity and speed of tests for the diagnosis of sarcopenia, which should be included in the daily physiotherapy assessment in order to be able to detect and treat this disease in time.