Simply stated, Ultrasound is a sound wave that is out of the human audible hearing range.

Naturally produced ultrasonic wave forms penetrate deeply into the body, from 60,000 ~ 100,000 Hz,   including far infrared wave forms ( FIR ).

The SG 2000 incorporates the same principle as the therapeutic hot spring baths in Japan. Natural therapeutic hot springs are known to produce numerous bubbles which collide with one another and rupture. This rupturing produces ultrasonic waves that penetrate our skin. Absorption of ultrasound by our bones is higher at 13% as compared to our flesh at 3%. 

This absorption of this natural ultrasound:

  • Causes internal warming of our bones,
  • Stimulates bone marrow production, 
  • Improves blood circulation, 
  • Boosts immune system functioning,
  • Helps to improve and in many cases alleviate illnesses which are caused by poor blood circulation or low body temperature.

Ultrasound is common in rehabilitation therapy today. It is an often used therapy to decrease joint stiffness, reduce pain and muscle spasms as well as being used to improve mobility.  Through the acoustic irradiation of the skin, skin metabolism is activated and waste products and toxins are removed more effectively.  The skin cells can absorb and store moisture again  when waste and toxins are removed. As a result, skin tone is improved and skin texture looks younger, smoother and firmer. The flushing of waste products and toxins makes ultrasound an excellent treatment method for dealing with cellulite as well as revitalizing the skin itself through improved blood flow. Due to ultrasounds effectiveness, the beauty and cosmetics industries have also found many beneficial uses of ultrasound.

Ultrasound is very trusted by our medical systems. It has been used on pregnant women for well over a quarter of a century. It
is increasingly being used in the detection and treatment of heart disease, heart attacks and vascular disease that can lead to stroke. High Intensity Focused Ultrasound is being used for the treatment of prostate cancer in many countries. It is also often used to reduce inflammation prior to prostrate surgery. Research has also shown that ultrasound has helped the speed of healing fractured bones.

The therapeutic effects of ultrasonic treatment help to increase blood circulation, promote cellular activation, stimulate bone growth, alleviate pain from muscle tension as well as muscle spasms and is effective in reducing swelling. It is also being used to break calculi such as kidney stones and gallstones, heal soft tissue damage and  to rejuvenate the skin with ultrasonic facials. Ultrasound has become a common technology so much so that it is even used to clean jewelry and eye glasses.

Pubmed articles  - ultrasound

Postepy Hig Med Dosw (Online). 2007 Jun 1;61:338-49.

[Ultrasound--mechanisms of action and application in sonodynamic therapy].

[Article in Polish]


Katedra Biofizyki Ogólnej, Uniwersytet Łódzki, Łódz, Poland. milowska@biol.uni.lodz.pl


Ultrasound is a mechanical wave at a frequency beyond human hearing. In nature, ultrasound waves of low frequency are emitted and received by many animal species. However, people are interested in ultrasound which is artificially produced because of its possible practical applications. The wide spectrum of ultrasound (US) application in industrial technology and devices of general use poses a risk to human health because ultrasound in high doses can be harmful. People can also be exposed to ultrasound generated during medical treatment, mainly in ultrasound diagnostics and therapy as well as surgery. The possible risk to human health creates the need for investigation of the effects and mechanisms of its biological activity. The mechanisms of ultrasound action on biological material can be divided into thermal and nonthermal. Thermal effects occur when acoustic energy is absorbed and transformed to heat and depends on the absorption and dissipation of ultrasound energy. Nonthermal mechanisms can be classified as cavitational and shear stress. Shear stress includes the effects of the radiation pressure, radiation force, and acoustic streaming. Cavitation leading to the formation of reactive oxygen species and its consequences are of primary interest. To support photodynamic cancer therapy in the 1970s, the idea of sonodynamic cancer therapy was formulated. Sonodynamic therapy is a promising new technique for killing cancer cells based on the synergistic interactions of ultrasound and certain chemical compounds called "sonosensitizers". In spite of the experimental proof of the existence of the sonodynamic effect, attempts of a clear qualification of the mechanism of this process have been unsuccessful.

[PubMed - indexed for MEDLINE]

Free full text

Tumor cytotoxicity in vivo and radical formation in vitro depend on the shock wave-induced cavitation dose.


Department of Radiation Oncology, University of Heidelberg, INF 400, Germany. p.huber@dkfz-heidelberg.de


Local tumor therapy using focused ultrasonic waves may become an important treatment option. This technique exploits the ability of mechanical waves to induce thermal and nonthermal effects noninvasively. The cytotoxicity to cultured cells and biological tissues in vivo that results from exposure to ultrasonic shock waves is considered to be a nonthermal effect that is partly a consequence of ultrasound-induced cavitation. Cavitation is defined as the formation of bubbles during the negative wave cycle; their subsequent oscillation and/or violent implosion can affect surrounding structures. To investigate cavitational effects in cells and tissues, defined cavitation doses must be applied while ideally holding all other potential ultrasound parameters constant. The application of independent cavitation doses has been difficult and has yielded little knowledge about quantitative cavitation-tissue interactions. By using a special shock-wave pulse regimen and laser optical calibration in this study, we were able to control the cavitation dose independently of other physical parameters such as the pressure amplitudes, and averaged acoustic intensity. We treated Dunning prostate tumors (subline R3327-AT1) transplanted into Copenhagen rats with shock waves at three cavitation dose levels and then determined the tumor growth delay and the histopathological changes. All of the treated animals exhibited a significant tumor growth delay compared to the controls. Higher cavitation doses were associated with a greater delay in the growth of the tumor and more severe effects on tumor histopathology, such as hemorrhaging, tissue disruption, and necrosis. In vitro, the cavitation dose level correlated with the amount of radical formation. We concluded that the process of acoustic cavitation was responsible; higher cavitation doses caused greater effects in tumors both in vivo and in vitro. These findings may prove important in local tumor therapy and other applications of ultrasound such as ultrasound-mediated drug delivery.

This information is provided for general purposes only. The opinions and results expressed in this website are the opinions of the relevant researchers and the site owners. Information in this website is not intended as a substitute for medical advice. In fact, if you have medical concerns we want you to consult your physician with this information and seek their advice as many are aware of the published research into the use of far-infrared, massage, ozone, oxygen, negative ions, natural ultra-sound and hydrotherapy.  Our goal is to help others attain the highest level of wellness available to them. It is our hope and dream to do that in the simplest, most natural way possible.

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