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SA FDBro Spots Fitness Workout Mask


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The general way for improving muscle tone is to exercise and exert more training time and intensity, but the lungs are often ignored. To improve the body's function and capacity, we need to exercise the lungs and other respiratory muscles such as our diaphragm and other chest expansion muscles to enhance the quality of each training, and achieve great improvement.

  • Increase lung capacity
  • Enhance cardiac function
  • Improve oxygen absorption efficiency
  • Increase muscle strength
  • Increase physical and mental endurance
  • improve training concentration

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