Toratani Launches Analysis Project on 'Physical Structure of Breathing During Sleep' Affecting Athlete Career Longevity
Toratani Co., Ltd. has initiated the 'Night Oxygen Flow Project – Phase 2' to clarify the 'physical structure of breathing' that influences the career longevity of professional athletes. By analyzing the issue through respiratory physiology, autonomic nerves, and hypoxic environments, the company aims to apply its findings to improve sleep, posture, and metabolism.
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- 📰 Published: May 21, 2026 at 19:00
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Toratani Co., Ltd. (Kahoku, Ishikawa) has launched the 'Night Oxygen Flow Project – Phase 2' to reveal the reality of respiratory infrastructure during sleep. As the fourth installment, it releases the latest analysis on the 'physical structure of breathing' that dictates the career longevity of professional athletes.
This analysis organizes the 'upstream factors of athlete longevity'—factors that remain unresolved even after rigorous training, nutrition, and recovery—from the perspectives of respiratory physiology, autonomic nerves, and hypoxic environments.
Professional athletes invest in unparalleled levels of management and effort, including personal trainers, coaches, nutritionists, medical staff, data analysis teams, and thorough management of heart rate, breathing, and form, along with recovery equipment, supplements, and guaranteed sleep duration.
Despite this infrastructure, daily training to the limit, and strict management of diet and sleep, athlete career spans remain surprisingly short.
Intense sports have short peak periods. Hard sports such as soccer, basketball, track and field, and martial arts peak in the late 20s to early 30s, followed by a rapid performance decline.
Why does career longevity not extend despite such effort?
Professionals understand the importance of breathing. Breathing techniques, respiratory muscle training, VO₂max, heart rate variability, and mental control are practiced daily. In short, they are aware of the importance of breathing.
Nutrition is also perfectly managed, from protein levels, carbohydrate timing, electrolytes, vitamins and minerals, to supplements and hydration levels.
Recovery is thorough, utilizing ice baths, massage, stretching, electrical stimulation, compression therapy, and guaranteed sleep. They are doing everything they can for recovery.
Yet, their careers are short. This is the 'hole' that sports science has overlooked. It is not the amount of effort. It is not nutrition. It is not training. Then what is missing?
Based on expertise in 3D apparel structural design, we have systematized this 'physics of breathing' and apply it to improve sleep, posture, and metabolism. This educational series is systematized based on the 3D design expertise cultivated by CEO Toratani and his own experience in health improvement. We will continue to disseminate information regarding the relationship between physical airway structure, sleeping posture, and breathing.
The background for 'breathing during sleep,' 'hypoxia,' 'autonomic nerves,' and 'cardiovascular risk' mentioned in this release includes the following international academic research:
1. Structural and Skeletal Risk of Hypopnea (Structural Destiny)
Davidson TM. (2003) The anatomic basis for the development of sleep apnea.
Core: As a trade-off for bipedalism and language acquisition, humans have a structural weakness where the airway easily collapses during sleep.
Isono S. (2012) Obstructive sleep apnea of non-obese patients in Japan.
Core: Japanese people have ethnic characteristics where the jaw is small, making the airway physically prone to narrowing even without obesity.
2. Impact of Hypopnea on Hypoxia and Autonomic Nerves (Physiological Damage)
Somers VK, et al. (1995) Sympathetic neural mechanisms in obstructive sleep apnea.
Core: Oxygen reduction due to hypopnea abnormally activates the sympathetic nervous system even during sleep, disrupting autonomic balance.
Lévy P, et al. (2011) Sleep apnea as a cause of cardiovascular disease.
Core: Intermittent hypoxia places strong oxidative stress on blood vessels, becoming the root cause of arteriosclerosis and metabolic abnormalities.
This analysis organizes the 'upstream factors of athlete longevity'—factors that remain unresolved even after rigorous training, nutrition, and recovery—from the perspectives of respiratory physiology, autonomic nerves, and hypoxic environments.
Professional athletes invest in unparalleled levels of management and effort, including personal trainers, coaches, nutritionists, medical staff, data analysis teams, and thorough management of heart rate, breathing, and form, along with recovery equipment, supplements, and guaranteed sleep duration.
Despite this infrastructure, daily training to the limit, and strict management of diet and sleep, athlete career spans remain surprisingly short.
Intense sports have short peak periods. Hard sports such as soccer, basketball, track and field, and martial arts peak in the late 20s to early 30s, followed by a rapid performance decline.
Why does career longevity not extend despite such effort?
Professionals understand the importance of breathing. Breathing techniques, respiratory muscle training, VO₂max, heart rate variability, and mental control are practiced daily. In short, they are aware of the importance of breathing.
Nutrition is also perfectly managed, from protein levels, carbohydrate timing, electrolytes, vitamins and minerals, to supplements and hydration levels.
Recovery is thorough, utilizing ice baths, massage, stretching, electrical stimulation, compression therapy, and guaranteed sleep. They are doing everything they can for recovery.
Yet, their careers are short. This is the 'hole' that sports science has overlooked. It is not the amount of effort. It is not nutrition. It is not training. Then what is missing?
Based on expertise in 3D apparel structural design, we have systematized this 'physics of breathing' and apply it to improve sleep, posture, and metabolism. This educational series is systematized based on the 3D design expertise cultivated by CEO Toratani and his own experience in health improvement. We will continue to disseminate information regarding the relationship between physical airway structure, sleeping posture, and breathing.
The background for 'breathing during sleep,' 'hypoxia,' 'autonomic nerves,' and 'cardiovascular risk' mentioned in this release includes the following international academic research:
1. Structural and Skeletal Risk of Hypopnea (Structural Destiny)
Davidson TM. (2003) The anatomic basis for the development of sleep apnea.
Core: As a trade-off for bipedalism and language acquisition, humans have a structural weakness where the airway easily collapses during sleep.
Isono S. (2012) Obstructive sleep apnea of non-obese patients in Japan.
Core: Japanese people have ethnic characteristics where the jaw is small, making the airway physically prone to narrowing even without obesity.
2. Impact of Hypopnea on Hypoxia and Autonomic Nerves (Physiological Damage)
Somers VK, et al. (1995) Sympathetic neural mechanisms in obstructive sleep apnea.
Core: Oxygen reduction due to hypopnea abnormally activates the sympathetic nervous system even during sleep, disrupting autonomic balance.
Lévy P, et al. (2011) Sleep apnea as a cause of cardiovascular disease.
Core: Intermittent hypoxia places strong oxidative stress on blood vessels, becoming the root cause of arteriosclerosis and metabolic abnormalities.
FAQ
Why is the career span of professional athletes short?
Despite rigorous training and management, the physical structure of breathing and the state of the airway during sleep may negatively impact performance, according to research.
How does breathing technique differ from respiratory physical structure?
Breathing technique is a skill, whereas the physical structure focused on here refers to the quality of breathing based on bodily constraints such as skeletal and airway shape.
How is this project useful?
It is expected to contribute to improving sleep, posture, and metabolism in athletes, potentially extending their careers and maintaining performance.