Alterations in the ability to maintain balance as a result of stochastic resonance whole body vibration in women

Abstract

PurposeA vertical posture makes it difficult to maintain balance especially in the elderly. Loss of balance leads to falls and injuries. In the present study, we evaluated whether balance maintenance can be improved with the use of stochastic resonance whole body vibration (SR-WBV).MethodsAn examination of balance, involving 187 women aged 19–74 years, was conducted using double-plate posturography pre and post SR-WBV. The SR-WBV trainings were performed using the SRT Zeptor Medical-plus noise device. The entire study lasted 6 weeks, with a total of 12 training sessions, each consisting of nine 45 second series, with a 45 second pause between them.ResultsPost SR-WBV there was a reduction in the value of: the resultant mean velocity (MV) of the movement of COP (centre of pressure) for both lower limbs (B) and in the right lower limb (R) during the test with eyes closed (EC), the mean velocity and mean amplitude (MA) of the movement of COP along the x-axis (ML) of the left lower limb (L) during the test with eyes open (EO) and closed and some additional parameters. Negative correlations between age/index of improvement of MV-EC-B, MV-EC-L and MVML-EC-L, and BMI/index of improvement of MV-EC-B, MVML-EC-B appeared. Height correlated positively with the index of improvement of MV-EC-B and MVML-EC-B.ConclusionsAs a result of SR-WBV, the left leg is more stable along the x-axis and the disproportion between the stability of both legs is reduced. Consequently, body stability is higher. The SR-WBV is more effective in younger, taller and slimmer women. SR-WBV parameters should be optimized so that the training is more beneficial for elderly and shorter women, and for women with a higher BMI.

The Influence of Stochastic Resonance Whole-Body Vibration on Women over 50 Years of Age—Preliminary Studies Based on Patients’ Own Experiences

“…Similarly, Rogan and Herren et al [17,18] demonstrated an improvement in functional muscle strength after the SR-WBV intervention in less active older adults. SR-WBV was also shown to play a role in improving women's ability to maintain balance [11].…”

“…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]. Donocik 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].…”

Stochastic Resonance Whole Body Vibration (SR-WBV) Does Not Affect the Body Composition of Healthy Young Women: A Preliminary Controlled Before–After (CBA) Study

“…A number of scientific reports show a positive effect of physical activity on body composition [2]. In the literature, we can also find evidence of the positive impact of vibrations with stochastic resonance on other aspects of the human body, e.g., balance, muscle pain, and cognitive functions [9][10][11]. The impact of stochastic resonance whole body vibrations on individual parameters of female body composition have never been studied before.…”

Effect of laser treatment on postural control parameters in patients with chronic nonspecific low back pain: a randomized placebo-controlled trial

“…Recent data demonstrate that it is also impossible to exclude the fact that researchers generally evaluate the effectiveness of laser therapy based only on imperfect tests (e.g., Lasàgue's or Schober's) and questionnaires in terms of measurement error. In addition, the questionnaires used analyze only subjective (i.e., indicated by the patient) pain sensations as well as functional abilities and disturbances in mobility (1–16,12–14).…”

“…Computerized posturography testing is a valuable and objective technique for measuring postural strategies under challenging static and dynamic conditions (15). The strategy allows assessment of balance control with highly repeatable measurements, which determines the efficiency of the balance and proprioception systems, especially the coordination functions of the nervous and muscular systems (16). Proprioception participates in the maintenance of a standing posture of the body by constantly regulating center of pressure (COP) movements necessary for orthogonal projection of the center of gravity (COG) during the postural phase (17).…”