During some exercises (push-ups, crunshes) my whole body shakes, I feel a tremor that I cannot control. This happens even during first push-up, when I'm not tired at at all. So, my questions are:
- What could be a reason for this?
- Does this tremor affect the efficiency of my workout?
- Should I be trying to control it, and if yes, how?
I'm 37, and started working out recently after a long period without any physical activity.