legs

hey guys so Iv been having problems doing back squats. But Iv been going front squats fine. When I put some weight on the back I feel like I'm going to fall forward or my left leg caves in. I use to do them all the time idk what's happened. But my fronts have blown up I'm up to 150kg for 6. Yet...

This is probably a ridiculous question but wanted some clarification. Current cycle 500mg Test E - 2x 250mg Monday/Thursday Would adding 100mg of test p on my leg day (Wednesday) help give my leg gains an edge and promote growth? Or would I be wasting gear?

Does anyone have a good leg routine or something intermediate that can build up the strength in my legs quickly! Fist leg day back and have finally realized that I may hae personally lost a lot more than I thought! I work a rigorous day as thought it would keep my legs somewhat strong! But I'm...