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Modified Kaatsu training: adaptations and subject perceptions.
Alyssa Weatherholt1, Matthew Beekley, Stephanie Greer
1Center for Translational Musculoskeletal Research, Indiana University School of Health and Rehabilitation Sciences, Indianapolis, IN, USA.
Medicine and Science in Sports and Exercise
|December 19, 2012
Summary
This study shows that modified Kaatsu training, a low-load exercise, effectively increases muscle strength and size. The training was well-tolerated, suggesting its potential for untrained or clinical populations.
Area of Science:
- Exercise Physiology
- Sports Science
- Rehabilitation
Background:
- Kaatsu training, characterized by low training loads, may present adherence challenges due to high perceived exertion and pain.
- Investigating modified protocols is crucial for optimizing its application in diverse populations.
Purpose of the Study:
- To evaluate muscle adaptations, perceived exertion, sensations, and adherence to a modified Kaatsu training protocol.
- Focus on upper arm exercise in a controlled setting.
Main Methods:
- Forty healthy adults (18-30 years) were divided into exercise (EX) and control (CON) groups.
- EX group performed unilateral biceps and triceps exercises with blood flow restriction (Kaatsu) on one arm for 8 weeks.
- Strength, girth, tomography, and perceived exertion/sensations were assessed.
Main Results:
- Significant increases in biceps curl and triceps extension strength and arm girth were observed in the EX group compared to CON.
- Exercise adherence was high (85.4%) in the EX group.
- Prominent sensations in the Kaatsu-trained arm included pressure and aching, with moderate perceived exertion.
Conclusions:
- The modified Kaatsu training protocol demonstrated moderate exertion and low-pressure sensations.
- It effectively enhanced muscle size and strength.
- The protocol was well-tolerated, supporting its use in untrained or clinical populations.