In article , Clive D. W. Feather
writes

Irrespective of the facts of the original case, that statement is
rubbish.

Four examples off the top of my head:

(1) The person is short of stamina and can only stay active for an hour
or two. Fine for playing squash but not for driving trains.


Squash is probably the most demanding non contact sport there is. If you
can last 2 hours on the squash court then you are fit to drive a train
which does not require much physical exertion and therefore does not
require much stamina.

(2) The person has an injury in an area which doesn't affect them
playing squash but does affect train driving (e.g. left wrist of a
right-handed person, or a hip problem preventing them sitting in one
position for long periods.


All areas of the body are used when playing squash, lots of twisting and
turning, fast sprints etc. If the person was right handed and had an
injury to their left hand they wouldn't be able to serve the ball and
therefore couldn't play squash as they would be unable to do up the
laces on their sports shoes.

(3) The injured area is reliable enough for unimportant tasks but not
for critical ones. Exercising an injured ankle through playing squash
might be recommended; if it starts to hurt, the person can stop
playing, whereas if it plays up while driving a train, they can't just
stop.


Exactly how can an ankle injury stop you driving a train? Yes I know
that some stock has the PED release as a foot switch but otherwise I
don't' but that.

Jeez......

(4) The person has an intermittent eyesight problem that doesn't stop
them playing a game but isn't safe for something like train driving.
For example, temporary blindness in one part of the retina, or
temporary blindness in low light.

But they can see a squash ball whizzing around a brightly lit white
court at 35 mph.........
--
Andrew
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