- 著者
- T. Nakajima M. Kurano H. Iida H. Takano H. Oonuma T. Morita K. Meguro Y. Sato T. Nagata KAATSU Training Group
- 出版者
- 日本加圧トレーニング学会
- 雑誌
- International Journal of KAATSU Training Research (ISSN:13494562)
- 巻号頁・発行日
- vol.2, no.1, pp.5-13, 2006 (Released:2008-05-22)
- 参考文献数
- 23
- 被引用文献数
- 32 149
KAATSU training is a novel training, which is performed under conditions of restricted blood flow. It can induce a variety of beneficial effects such as increased muscle strength, and it has been adopted by a number of facilities in recent times. The purpose of the present study is to know the present state of KAATSU training in Japan and examine the incidence of adverse events in the field. The data were obtained from KAATSU leaders or instructors in a total of 105 out of 195 facilities where KAATSU training has been adopted. Based on survey results, 12,642 persons have received KAATSU training (male 45.4%, female 54.6%). KAATSU training has been applied to all generations of people including the young (<20 years old) and the elderly (>80 years old). The most popular purpose of KAATSU training is to strengthen muscle in athletes and to promote the health of subjects, including the elderly. It has been also applied to various kinds of physical conditions, cerebrovascular diseases, orthopedic diseases, obesity, cardiac diseases, neuromuscular diseases, diabetes, hypertension and respiratory diseases. In KAATSU training, various types of exercise modalities (physical exercise, walking, cycling, and weight training) are used. Most facilities have used 5-30 min KAATSU training each time, and performed it 1-3 times a week. Approximately 80% of the facilities are satisfied with the results of KAATSU training with only small numbers of complications reported. The incidence of side effects was as follows; venous thrombus (0.055%), pulmonary embolism (0.008%) and rhabdomyolysis (0.008%). These results indicate that the KAATSU training is a safe and promising method for training athletes and healthy persons, and can also be applied to persons with various physical conditions.
- 著者
- T. Yasuda T. Fujita Y. Miyagi Y. Kubota Y. Sato T. Nakajima M.G. Bemben T. Abe
- 出版者
- Japan Kaatsu Training Society
- 雑誌
- International Journal of KAATSU Training Research (ISSN:13494562)
- 巻号頁・発行日
- vol.2, no.1, pp.15-18, 2006 (Released:2008-05-22)
- 参考文献数
- 11
- 被引用文献数
- 19 40
The purpose of this study was to compare the EMG activity of blood flow restricted (limb) and nonrestricted (trunk) muscles during multi-joint exercise with and without KAATSU. Twelve (6 women and 6 men) healthy college students [means (SD) age: 24.1 (3.5) yrs] performed 4 sets (30, 15, 15, and 15 reps) of flat bench press exercise (30% of a predetermined one repetition maximum, 1-RM) during two different conditions [with KAATSU and without KAATSU (Control)]. In the KAATSU condition, a specially designed elastic cuff belt (30 mm wide) was placed at the most proximal position of the upper arm and inflated to a pressure of 100% of individual's resting systolic blood pressure. Surface EMG was recorded from the muscle belly of the triceps brachii (TB) and pectoralis major (PM) muscles, and mean integrated EMG (iEMG) was analyzed. During 4 sets of the exercise, gradual increases in iEMG were observed in both TB and PM muscles for the KAATSU condition. The magnitude of the increases in iEMG in the TB and PM muscles were higher (P<0.05) with KAATSU compared to the Control condition. In the first set, the mean exercise intensity from normalized iEMG was approximately 40% of 1-RM in both Control and KAATSU conditions. However, the mean exercise intensity of both muscles were 60-70% of 1-RM for the KAATSU condition and only about 50% of 1-RM for the Control condition, respectively, during the fourth set. We concluded that increases in iEMG in the trunk muscle during KAATSU might be an important factor for KAATSU training-induced trunk muscle hypertrophy.
- 著者
- T. Nakajima T. Morita Y. Sato
- 出版者
- 日本加圧トレーニング学会
- 雑誌
- International Journal of KAATSU Training Research (ISSN:13494562)
- 巻号頁・発行日
- vol.7, no.1, pp.1-6, 2011 (Released:2012-03-28)
- 参考文献数
- 7
- 被引用文献数
- 3 21
KAATSU training is a novel training method conducted under special conditions of restricted muscle blood flow of the limbs with a specially-designed KAATSU belt. In 2006, we conducted a questionnaire survey across the whole of Japan to investigate the status of KAATSU training. After that, we have performed KAATSU training mainly for patients with cardiovascular diseases at a total of approximately 700 people per year, and no serious side effects of note have been found. However, it has also been applied for various purposes such as to increase the muscle strength and prevent the muscular atrophy of all kinds of patients including older people. And, in near future, it may be used to train more seriously affected patients with cachexia or sarcopenia. Therefore, in this review, we introduce the main matters reported over the five years since the questionnaire survey was conducted. In addition, we outline key considerations concerning the implementation of KAATSU training centered mainly on our previous experience and reports reached to us.