Implications of Insulin Like Growth Factor 1 in Skeletal Muscle and Various Diseases IGF 1 Therapy Improves Muscle Size and Function in Experimental Peripheral Arterial Disease ScienceDirect IGF 1 LR3 1 mg VPeptide IGF 1 LR3 Canada: Ultra Pure Peptide for Growth, Muscle, & Cellular Signaling Research Crucial role of androgen receptor in resistance and endurance trainings induced muscle hypertrophy through IGF 1 IGF 1R PI3K Akt mTOR pathway Nutrition & Metabolism Springer Nature Link