Going on with this talk of force required for pressing keys to play osu!, kinda gonna sidetrack from the topic for this thread.
I wonder if anyone has thought the total weight required to press at certain speeds and compare them. I guess I'll do that.
120 bpm * 4 = 480 key presses in a minute / 240 per finger. 10.8kg for red (24lbs). 14.4kg for black (32lbs).
Math for the lazy or curiousBpm - red - black (columns are in lbs, remember use half the weight listed on each side to get a total weight for both your arms)
120 - 24 - 32
140 - 28 - 37
160 - 32 - 42
180 - 36 - 48
200 - 40 - 53
220 - 44 - 58
240 - 48 - 63
260 - 52 - 67
280 - 56 - 75
as you can see the strain with black switches is much higher in comparison to red switches.
Now with wrist flexors and extensor work outs with 15lbs of weight on each side to start with, which is 30lbs total
Edit: forgot to state this is using a barbell with both arms, use half the weight listed above if you want to focus solely on one side. Do 1 lift in 1 second for 1 minute consecutively. Repeat for 5 sessions with about 1 minute break inbetween. Now in theory if you can manage this it should equate to being able to manage the STRAIN of moving your fingers at a relative speed. This of course still requires practice in technique, but having good healthy muscles to support your tendons to move faster in your fingers helps.
Let's say you want to stream 240bpm but can't seem to manage lasting even though you do lots of speed training. If you do wrist felxors/extensors at 50lbs total (25lbs with each weight on each side) in the exercise I described earlier then it should help you last longer.
The point of doing speed training is to strain your muscles which tears them eventually so you can build more muscle, but it's too difficult to use your fingers alone to do this, instead doing the workouts with weights and your wrist is a sort of fast track way of doing it. Again you still need technique and shit so this isn't me saying "lift and get gud at osu!" more as a "I have a theory that weights and shit equate to being able to move and shit".
Now whoever wants to try doing this and gets results please do tell me, because I've seen fit people be able to destroy streams like they're nothing at high speeds and this may relate to why this happens.
Fap too, can't forget that