How its done The needle is inserted at a 90-degree angle so that it pierces the skin down into the muscle
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Mechanism literature Multiple peer-reviewed papers describe VEGFR2 activation, eNOS/NO signaling, and tendon-cell behavior in cultured cells and rodent models (Chang et al., Journal of Applied Physiology, 2011
It does this without affecting insulin or blood sugar levels
The physiological adaptations over time need to be considered
If you have substantial subcutaneous fat at the injection site (more than an inch when pinched), you may not need to pinch, just inject directly at a 90 degree angle