Viking Axes, Bearded Axes and Norse Axes. The axe was one of two common weapons for a Viking warrior to wield. Easy to make and easy to repair, it was a brutally effective weapon that well-suited the wild yet powerful style that Vikings were said to utilize when they entered into battle.
With less air trapped in your lungs, more oxygen will be able to get into your bloodstream. Diaphragmatic Breathing for COPD Diaphragmatic breathing is a breathing exercise that helps to strengthen your diaphragm, which is the most important muscle used in breathing. Your diaphragm, located under your lungs, helps you expel air from your lungs when you exhale.
To complement your regimen of sandbag breathing there are two kinds of yoga postures that are especially helpful in strengthening the diaphragm: inverted poses and twisting poses. Inverted postures place the weight of the abdominal organs on the diaphragm, so that during inhalation the diaphragm must lift them.