Chompiraz,
regret I cannot completely agree with you. What you described in your post is rather pure amateur ping pong, not table tennis. I can also see people staying behind the table, feet glued to the floor, moving their arms only and pretending to train. They claim to have a great stamina as they don't show a single drop of sweat even after an hour of play - I sweat already after the warm-up, which they never do anyway. TT is a specific sport where you cannot allow yourself to have massively build muscles, like bodybuilders do, TT favours low weight, I will address this issue later. You don't need extreme force - but you must be capable of executing strokes with optimum force - and loosely at the same time, which is self-contradictory, yet working, and sometimes extremely fast. So you don't need to have well built arms, rather strong and effective.
Middle body is very important, if you play correctly from the technical point of view, every stroke comes from your waist and hips. Advanced TT players must train this part of the body almost like boxers. Footwork, i.e. legs' performance is crucial - i hope there is no need to further explain it. You see how professionals move at the table? I remember already in the 70-ies I've been reading an interview with Seiji Ono - he claimed to jog e v e r y morning 5 to 10 km. And today's players are much better prepared physically then those "ancient" ones, as the game is quicker and more demanding. The Chinese say they spend some 50% of the training time on physical preparation, meaning more than the technical one, as you have to leave some % for mental training. And we come to back to the issue of body weight – with all legs so well developed (see the Chinese or Japanese, like Ma Lin or Kishikawa) and with so hard training every day – how can you imagine to move quickly if you have some spare pound on you? To compare, have you ever seen a fat long distance runner ?
Big and too well developed muscles are also not acceptable in TT for physiological reasons – with all this extreme effort (please don’t laugh, sometimes it is really extreme) your lungs must oxygenate the body. Those interested in K1 or MMA, having seen e.g. Bob Sapp will immediately understand what I am meaning.
Another example: I recently listened to Błaszczyk, one of the best players in the history of Polish TT (and European as well). He plays today in Germany (TTC Zugbrücke Grenzau) and makes friend with Miroslav Klose, a top footballer from Bayern. They train together from time to time and Blaszczyk was laughing (friendly) that Miro says that Bayern they never train physically as hard as TT players.
I dare to say that without physical preparation one can forget about achieving any significant results in TT – unless he/she doesn’t care.
In another post I will provide some more facts about TT, also about the physical requirements of this sport, which of course is the best for me – but not the hardest. In this I agree with Chompiraz, I find all this effort, preparation and training not so hard as I simply love the game and am ready to make this effort to progress.
Cheers