Hi welcome to HCM I have gone thru your query regarding shaking of hands while doing pull ups . It is a matter of concern . Dear , there is nothing to worry about it . Everyone has a small, sometimes undetectable, shake when they move their hands. Several factors cause you this symptom and removing them , will help you to be normal .Fatigue, stress, feelings of anger or fear, caffeine and smoking can make this shaking more prominent .Better to avoid them I wonder what type of exercise you are doing . And for your info , 1 month of exercising is not sufficient to be perfect in this subject . Have patience , carry on your regime . Keep it up regularly . You will be a winner At the same time ,diet factor is very important to be considered . Include balanced diet having essential nutrients - fiber ,vitamins ,minerals , antioxidants in natural form as fruits ,veges ,ginger, garlic ,lemon juice, Aloe vera + amla juice , turmeric powder with hot milk ,almond,nuts and dairy products in proper proportion according to a qualified dietitian . Meanwhile ,for proper blood circulation you can do yoga ,pranayam - deep breathing and Meditation to strengthen your physical and mental energy Hand tremor can be due to serious, ongoing diseases. Seek prompt medical care , if symptoms of tremor persist . Hope this helps solve your query Take care All the best.