Freedom from Breathlessness: “Kaatsu Rehabilitation” as a Beacon of Hope for Post-COVID-19 Lung Dysfunction
It has been several years since the COVID-19 pandemic began, yet its impact continues to afflict people across the globe. One of the most serious ongoing challenges is the condition known as “Long COVID”—persistent symptoms that linger long after the initial infection. Among these, respiratory complications such as reduced lung function and interstitial pneumonia significantly lower patients’ quality of life, making everyday activities extremely difficult.

According to the World Health Organization (WHO), approximately 10–20% of people infected with COVID-19 suffer from long-term symptoms. While it is difficult to pinpoint exact numbers regarding lung function decline, it is estimated that tens of millions of people worldwide are struggling with symptoms like shortness of breath and chronic fatigue. Many patients become dependent on oxygen therapy and experience drops in blood oxygen saturation to below 90% with even minor physical activity. This situation imposes not only physical pain but also considerable mental stress, forcing many to endure the harsh reality of "fighting to breathe" every single day.

Unfortunately, there is currently no established treatment for lung dysfunction caused by Long COVID. Most approaches are symptomatic, and fundamental recovery has been considered very difficult. However, in the midst of this bleak reality, a ray of hope is beginning to shine through.

The Global Spotlight on “Kaatsu Training” and Its Medical Adaptation: “Kaatsu Rehabilitation”
Kaatsu Training, developed in Japan, is a unique exercise method that has gained worldwide recognition for its safety and effectiveness. Its origins date back to 1966, when it was invented by Japanese innovator Yoshiaki Sato. After years of research and refinement, the method was patented in the 1990s and its theory and practical applications were formally established. Today, it is widely used in fields such as athletic performance, strength training, beauty, and general health improvement.

Kaatsu Rehabilitation is a medical adaptation of Kaatsu Training, applying its principles and techniques in rehabilitation and clinical settings. This method is now being studied and used by medical institutions and researchers around the world, with numerous medical papers confirming both its safety and effectiveness. When properly supervised, it is a safe and viable option for rehabilitation.

A New Treatment Developed by a Japanese Medical Doctor: Kaatsu Rehabilitation
Dr. Kenichi Odagiri, a Japanese medical doctor, has developed an innovative treatment method specifically for post-COVID-19 lung dysfunction based on his years of research and clinical experience. This method utilizes the principles of Kaatsu Rehabilitation.

Kaatsu Rehabilitation involves using specialized pressure bands to gently restrict blood flow at the upper arms or thighs during exercise. This creates a condition where even low-intensity, short-duration exercises can produce effects comparable to those of high-intensity training. Dr. Odagiri has clinically confirmed that this method can be effective in improving lung function.

Mechanisms of Action: A Scientific Basis for Lung Function Recovery
The effectiveness of Kaatsu Rehabilitation in improving lung function affected by Long COVID is thought to arise from a combination of physiological mechanisms:

1. Surge in Growth Hormone Secretion and Its Systemic Effects

One of the key features of Kaatsu Training is the accumulation of lactic acid in the muscles due to restricted blood flow during exercise. This lactic acid stimulates the pituitary gland, leading to a dramatic increase in growth hormone secretion—far greater than in normal exercise. Known as the “rejuvenation hormone,” growth hormone promotes muscle and bone repair, fat metabolism, cell regeneration, and enhances immune function. In the lungs, it is believed to assist in tissue repair and regeneration, thereby supporting functional recovery.

2. Improvement in Endothelial Function and Promotion of Angiogenesis

The alternating cycle of pressure and release during Kaatsu training mechanically stimulates endothelial cells, encouraging the secretion of nitric oxide (NO), a compound that helps dilate blood vessels and improve circulation. Furthermore, Kaatsu Rehabilitation is believed to promote angiogenesis—the formation of new blood vessels—especially in areas with damaged or poor circulation. This is due to temporary hypoxia followed by reperfusion, which enhances the expression of factors like VEGF (vascular endothelial growth factor). In cases of interstitial pneumonia caused by COVID-19, the fine capillaries in the lungs are often damaged or diminished. Kaatsu-induced angiogenesis improves blood supply to lung tissue, enhancing the delivery of oxygen and nutrients, thereby improving gas exchange efficiency and respiratory function.

3. Strengthening of Muscles and Respiratory Muscles

Kaatsu Training effectively stimulates fast-twitch muscle fibers, even with low loads and short durations, promoting increased muscle strength. Many patients with decreased lung function also experience weakened respiratory muscles. Strengthening these through Kaatsu Rehabilitation enables deeper breathing and improved respiratory efficiency. Additionally, improved overall muscle strength contributes to better daily functioning (ADL), which in turn encourages more physical activity and helps create a positive cycle of lung function recovery.

Taken together, these mechanisms suggest that Kaatsu Rehabilitation is not just a symptomatic treatment but may offer a fundamental and long-term improvement for those suffering from post-COVID lung dysfunction.

A Journey to Japan for a New Breath of Life
If you are struggling to breathe due to Long COVID and experiencing reduced lung capacity, Kaatsu Rehabilitation may offer a new kind of “hope” that previous treatments could not provide.

This groundbreaking treatment is currently available under the care of Dr. Kenichi Odagiri in Tokyo, Japan. For those seeking freedom from breathlessness and a return to an active life, this may be the opportunity you’ve been searching for.

For patients considering travel from abroad, we offer full support so you can focus on your treatment with peace of mind. Please feel free to contact us with any questions or concerns.

From a life of “painful breathing” to a future where you can once again enjoy “the joy of deep breaths”—we sincerely hope that Dr. Odagiri’s Kaatsu Rehabilitation will become a new source of light and healing in your life.