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Exercise-induced changes in diaphragmatic bioenergetic and antioxidant capacity
Scott K Powers1, R Andrew Shanely
1Department of Exercise and Sport Sciences, Center for Exercise Science, University of Florida, Gainesville 32611, USA. spowers@hhp.ufl.edu
Exercise and Sport Sciences Reviews
|May 7, 2002
Summary
Endurance exercise enhances diaphragm function by increasing its oxidative and antioxidant capacity. These rapid adaptations reduce oxidative stress and improve breathing muscle endurance.
Area of Science:
- Physiology
- Exercise Science
- Respiratory Muscle Adaptation
Background:
- The diaphragm is the primary muscle responsible for breathing in mammals.
- Understanding diaphragm adaptation to exercise is crucial for respiratory health.
Purpose of the Study:
- To investigate the effects of endurance exercise on the diaphragm's oxidative and antioxidant capacity.
- To determine the speed of these adaptations and their impact on diaphragmatic function.
Main Methods:
- Mammalian models were subjected to endurance exercise training.
- Oxidative and antioxidant capacities of the costal and crural diaphragm were measured.
- Indicators of oxidative injury and diaphragmatic endurance were assessed.
Main Results:
- Endurance exercise significantly elevated both oxidative and antioxidant capacity in the diaphragm.
- These beneficial changes were observed rapidly following the initiation of training.
- The adaptations were linked to decreased oxidative damage and enhanced diaphragmatic endurance.
Conclusions:
- Endurance exercise rapidly improves diaphragmatic oxidative and antioxidant capacity.
- These adaptations contribute to reduced oxidative injury and better breathing muscle performance.
- Regular endurance training is beneficial for maintaining and improving diaphragmatic function.