## 1 Introduction  
The aging process is inevitable for everyone. Involution changes are observed throughout the body, and the rate of progress varies according to gender; comorbidities; socioeconomic conditions; and lifestyle, including diet. The severity of the aging process in women is strongly related to menopause, which occurs at around 50 years of age, or the presenile period of life, according to the World Health Organization (WHO) [1, 2]. During this period, cardiovascular, respiratory, and immune disorders, as well as the rate of civilization disorders, such as being overweight, obesity (as a result of a decreased rate of metabolic changes and carbohydrate and hormone disorders), hypertension, and diabetes, all increase [3, 4]. For many years, the female population in Poland has been larger than the male population (51.7%), and the average life expectancy of women is still increasing slightly and currently stands at 81.8 years [5]. Socioeconomic changes have also impacted Polish women's status, giving them many new opportunities, but also requiring specific social roles, which are often mutually exclusive. For older women, in particular, the fulfillment of such changes is challenging and requires good mental and physical health [6].  
The 21 st century has brought about the development of technology and the computerization of everyday life. Unfortunately, along with the increase in a number of civilization diseases, a decrease in physical activity among women is observed. Non-invasive methods to prevent involution changes that are available to most of the population, and, above all, that are effective, are constantly being sought. Stochastic resonance is one of the therapeutic methods that is still studied. In 2003, [PERSON] et al. described how noise could benefit neurons or other nonlinear systems [7].  
Whole-body vibration (WBV) improves strength and power in healthy people. There are two basic forms of whole-body vibration: sinusoidal whole-body vibration (S-WBV) and stochastic resonance whole-body vibration (SR-WBV). During S-WBV, the device vibrates vertically or laterally, alternately, with frequencies from 20 to 50 Hz and amplitudes from 2 to 6 mm. During SR-WBV, participants stand on two platforms that vibrate independently with frequencies from 1 to 12 Hz [8].  
The stochastic resonance whole-body vibration (SR-WBV) is efficiently used in rehabilitation. One method of stochastic resonance vibration training is contrary to the traditional understanding of motion control mechanisms. Usually, disturbances that cause imbalance are avoided, and individuals attempt to limit the negative effects of vibration. However, during vibration training, some disturbances are created intentionally to train the motion control mechanisms of the body and to increase movement control in everyday life [8; 9]. It has been proven that stochastic vibrations are an effective way to improve walking, coordination, posture, and manual performance in patients with locomotive diseases [10]. [PERSON] et al. [11] performed SR-WBV training (frequency: 2-8 Hz; amplitude: 0.5-3.5 mm; duration: 6 weeks, 2 times a week) in women and showed the improvement in maintaining balance and postural control. Stochastic vibrations (frequency: 3-6 Hz; amplitude: 4 mm; level of noise: 4; duration: 8 weeks) also contribute to muscle strength and bone structure improvement [12], which can affect bone density, physical fitness, and improve comfort in an individual's general life [13]. This method may also provide other therapeutic effects.  
The aim of this study was to determine the effect of SR-WBV on the well-being and health of women over 50 years of age based on descriptions of the patients' own experiences after they had completed the training. These data will help form an understanding of the basic risks and benefits of SR-WBV and will determine the direction of further, more detailed research using objective measurement methods.