5 rounds, 3 mins round lenght every day with sledgehammer as a workout? Would that improve my punch in 6 months? I heard story that Earnie Shavers, the hardest punchers in boxing history did this because he chopped all trees around and didn't have more trees to chop so his trainer Archie Moore brought him sledgehammer and a tractor tire.
Will that improve your power - it will. Will that make you powerful puncher - it's personal, depends if you have it or not. It's a good exercise not only for the punches, but your body and conditioning it. How long you should do it per day, how often per week and how much time it'll take to give you significant results - again, it's personal. You should be able to decide for yourself after some time of practice. At some point, you'll get used to the number of repetitions and you'll need to increase it.
Every form of exercising will improve you - one will make you faster, other stronger, third with better endurance... A punch always starts from the legs, so better don't rely only on sledgehammer working.
Nah, minimum impact on your legs. Great one on the upper body. You can do sprints, lungs and for the legs if you don't want gym ones. There's another thing you can do - take similar to the karate's zenkutsu dachi, but bend your forward leg to 90 degrees in the knee and do the same for the back leg, then start walking without uplifting, I mean the legs stay in this 90 degrees position. This is a leg killer exercise with your own body weight. I wanted to find you a photo of the stance I am talking about, but for some reason I can't find. Hope this description is clear enough.
Thank you very much. I heard that hardest punchers did sledgehammer workout and that improved their punch.
Maybe they all did, it is a common fighter (and not only) exercise, but this wasn't the only thing they did for that purpose.
Very common misconception -----> Foreman punched substantially harder than Shavers. Some people feel the need to diminish Foreman's accomplishments and they typically start with Earnie Shavers being a better puncher. It's all hogwash. Using an axe is more satisfying, just cut down a nearby tree and section it every three feet. I actually do this with an 8lb splitting maul and it's a full body workout, so yes, I would highly recommend you do it.