Re: A few intersesting ideas
Running 30-60 minutes is a good way to build up endurance. Make sure your body is ready for it. I like running 45+Â* minutes around hilly land, it gives you extra time to reflect, and focus, while demanding more elbow grease out of the run. If you are a boxer, 3 hour running sessions is not gonna amend your endurance for boxing's pace. In our body, muscles for long-endurance, are comprised of slow-twitch muscle fiber; muscles for short intense exertions consist mostly of fast-twitch muscle fibers. In boxing a mixture of fast/slow-twitch muscle fibers are essential, in order to have a mix of this variety in intensity and duration is what ya gotta do. I recommend in conjunction of running 30-60 mins, with short distance intervals, this runs hand-in-hand with the exertion needed in boxing. Work out the distance, strive for progress through intensity (Hillsprints, weighted runs, competition), and travail.
As for increasing stability, and in contrast to other more bang-for-your-buck exercises, wobble-boards, thigh-trainers, skateboard-balance training are second-rate, if you want stability and balance, you should try agility training (Agility Boxing, USA-football, Soccer/Rugby are greatly beneficial) Eastern-Martial Art's training are also beneficial, stepping from post to post is a useful bit of training that many martial artists have exploited to their advantage.
Variety is excellent, but concerning memory-muscle (I'll explain in the future) your big breadwinner should be the most sport's specific, if it is boxing, nothing can replace fighting, the motions are all programed into our neuromuscular memory,Â* through repetition. Running, swimming, weight-training etc are supplementary but not substantial as to substitute for the real grind that boxing will put you through. If you want to progress, you should also keep a worklog and record all your exercises, the distance, timings, repetitions and sets, everything should be accounted for, keep your goals in mind, and strive with all your heart, to reach what is out of reach.
If you hear a voice within you saying that I am not a painter, then by all means paint and that voice will be silenced.