It sounds like everyone has a different view on how many sets is sufficient for each body part. Here's what I think:
2 sets is too little for any exercise. You can't stimulate all the muscle fiber in just two sets per exercise. An experienced physical therapist gave me a rehabilitation routine for my shoulder that has me doing 3 sets for each of the 7 or so exercises. In general, I think for a growing phase, you need at least 9 sets for smaller body parts, 3 sets per exercise, and 16 sets for large muscle groups, 4 sets per exercise. Guys who juice could do a lot more. For cutting, higher volume is better, doing about 3-4 more sets per body part. It also depends on the muscle itself. If it is dense, like the calves or forearms, more sets you will need to stimulate it. The bis aren't as dense, so they can benefit from a little less than average. The size of the muscle also determines how many sets to do, like do you you think you could get nice full quads from just 2 or 3 sets of squats and some leg extensions? Maybe if you are extremely genetically gifted. I used to do 25 sets on average for chest, back and shoulders each, and 20 for bis and tris. I was sore at first, but you adjust to it. I myself am going to try cutting back on total sets by about 4-5 per muscle group, but I don't see how you could even get a good pump off of only 2 sets of any exercise. Maybe I'll try it and find out.
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stay hungry
2 sets is too little for any exercise. You can't stimulate all the muscle fiber in just two sets per exercise. An experienced physical therapist gave me a rehabilitation routine for my shoulder that has me doing 3 sets for each of the 7 or so exercises. In general, I think for a growing phase, you need at least 9 sets for smaller body parts, 3 sets per exercise, and 16 sets for large muscle groups, 4 sets per exercise. Guys who juice could do a lot more. For cutting, higher volume is better, doing about 3-4 more sets per body part. It also depends on the muscle itself. If it is dense, like the calves or forearms, more sets you will need to stimulate it. The bis aren't as dense, so they can benefit from a little less than average. The size of the muscle also determines how many sets to do, like do you you think you could get nice full quads from just 2 or 3 sets of squats and some leg extensions? Maybe if you are extremely genetically gifted. I used to do 25 sets on average for chest, back and shoulders each, and 20 for bis and tris. I was sore at first, but you adjust to it. I myself am going to try cutting back on total sets by about 4-5 per muscle group, but I don't see how you could even get a good pump off of only 2 sets of any exercise. Maybe I'll try it and find out.
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stay hungry