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Association between the phase angle and muscle-tendon complex function in Japanese athletes: a comparative study
Chiaki Matsumoto1, Masahiro Ishizaka1, Tatsuya Igawa1
1Department of Physical Therapy, School of Health Sciences, International University of Health and Welfare: 2600-1 Kitakanemaru, Otawara-shi, Tochigi 324-8501, Japan.
Journal of Physical Therapy Science
|October 4, 2023
Summary
The phase angle correlates with muscle-tendon complex function in adult athletes, indicating its potential as a marker for muscle quality and physical condition in this group.
Area of Science:
- Sports Medicine
- Human Physiology
- Biophysics
Background:
- The phase angle (PhA) is a bioelectrical impedance parameter reflecting cell membrane integrity and cellular hydration.
- Muscle-tendon complex (MTC) function is crucial for athletic performance and is influenced by factors including age and muscle quality.
Purpose of the Study:
- To investigate the association between the phase angle and muscle-tendon complex function in Japanese athletes.
- To examine the influence of aging on the relationship between phase angle and muscle-tendon complex function.
Main Methods:
- Sixty-one adult male high school soccer players participated.
- Body composition was assessed using an analyzer.
- Muscle-tendon complex function was evaluated through grip strength and rebound jump index measurements.
Main Results:
- Significant intergroup differences were found in phase angle, total body muscle mass, grip strength, and rebound jump index.
- A significant positive correlation was observed between phase angle and grip strength in adult soccer players.
Conclusions:
- The phase angle is correlated with muscle-tendon complex function in mature adult athletes, but not in high school athletes.
- Phase angle may serve as an indicator of muscle quality and overall physical condition in adult athletes.
- Further research is needed to explore the association between phase angle and other performance measures in soccer players.
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