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A-1149 Muscle force optimization in piano playing. A biomechanical analysis - Q&A
Thursday, June 14, 2018 · 2:19 p.m. · 05m 57s
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00:00:01
thank you for the very most it was very little bit complicated with all the curves
00:00:06
it so so i understand your speed you recommend the whole which way to play
00:00:12
they're conserving and so have the best force uh and to protect that to
00:00:16
protect the intrinsic uh models to to the to the way to
00:00:21
for example he's turning this to me uh yes uh it seems that uh the how
00:00:26
it's way would be the way to go in terms of uh injury prevention
00:00:30
um it might seem a little bit contradictory because um it we're used
00:00:34
to saying that out with the p. i. v. joints and uh
00:00:38
if the id joins extended we seem to be using the engine six more in this
00:00:44
position but it's actually um thirty first because we look at the moment arms
00:00:50
this would be the position in which um long flex a moment and a maximum
00:00:56
so we're actually using more extrinsic facts as we keep things straight from
00:01:02
but then he lose some of their control mechanism because this is more intrinsic to get control
00:01:09
so the most reasonable so you walk onto that fit me as for
00:01:12
which the court by uh lose more precision ma ma ma
00:01:17
my language small musical language women do that um i sure yet if we look at fine motor control
00:01:24
it seems that um the position in which the intrinsic muscles
00:01:29
ah optimised what you the best fine with the control but this on the right is that a curve comparing
00:01:36
the ah amount of excitation into the amount of force
00:01:40
uh comparing the f. b. i. and biceps and we can see that
00:01:46
um obviously the f. b. i. would require much less excitation or
00:01:51
um increase in force so ah the same noise estimation would produce a much
00:01:58
finer force output for the f. t. i. compared with the biceps obviously
00:02:04
um so perhaps the curved thing the position is still advantageous
00:02:08
if we want to preserve the fine control if necessary
00:02:14
oh
00:02:16
i've i've what can question what uh what you don't to take
00:02:21
into account the rule of the the shoulder uh india with
00:02:26
but my about professor always tells me you have not to play like this where you have to play like that
00:02:33
you know where do you think that he plays a big role for the
00:02:39
hi for for this the the for that you put on the keys
00:02:45
um i think the whole body plays a big role if uh i mean when i
00:02:50
practised back home i always think that out once i sit on to check a
00:02:57
uh it is the way to the whole body going down and into the keys and not just you know yeah everything
00:03:04
remaining stiffen just the thing is moving k. so i think that's an important thing to bear in mind so yeah
00:03:10
your question or uh remote from the will be on it if thank you
00:03:17
have you lost half your future research to you can tell us about
00:03:24
um one of which uh is uh the um
00:03:30
presupposition uh shown here the second one i'm
00:03:33
still working on is to find control and how to better quantified in terms of um
00:03:40
in terms of the neurological control for for creating muscle false
00:03:45
and um of course this is just applying to p. and it's and there is um
00:03:50
of course there are a lot of other musicians at risk to most notably
00:03:54
guitarist and violin it's and pianist and not the words we did do you think that dividing us have more
00:04:02
power in the in the fingers of the left hand because this the the screen the the court
00:04:09
in a different way of course but then it will be more the the e. x. insect probably um
00:04:18
i think file then it's probably have a more specialised all i have to
00:04:24
um way of producing flexion because they have to as you as
00:04:30
you said in the morning a high pass open a yeah and they
00:04:34
have to do a lot of things in this really awkward position
00:04:39
and if you compare this with piano playing um
00:04:44
the flexion a mechanism intended playing is
00:04:48
definitely much more simpler than that in violence in it actually in panel playing
00:04:54
a lot of people can fatigue in expenses rather than flexes because
00:04:58
of um david had the repetition and because they have to
00:05:03
haves uh kind of what they call an independence of thing the motion so a lot of people okay
00:05:08
uh extensive d. and i'm definitely a a next research would be to look at
00:05:15
the difference between extension infection and whether it is true that is
00:05:20
easy to get fifty from it repetitive extension rather than faction
00:05:28
yes thank you i'm not to hide my knowledge haven't seen so it's a nice uh we should it's worked before
00:05:36
the also uh not in the industry in compassion all miss them
00:05:41
with i suppose to have some kind of the same problem standing everyday
00:05:46
and making the same uh work with their hands we could learn something from your about ten something position
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