Bloom confused himself. It was not 'stretched his legs' but rather 'stretched his/her/their/ hands'. It happens about six times or so, including 3 times between pages 85 and 92, including twice in page 85.
Also, 'clap the hand to shoulder/head/mouth' happens some five times too.
''shake/shook'' hands happens about 11 times.
''Shook/shake his head'' happens 9 times.
I took a random great book - Heart of Darkness - for comparison.
''shake/shook hands'': 5 times, one of which is far from a cliche (it shays 'I shook hands with this miracle.');
''shake/shook head'': 1 time;
hands clapping: hands are clapped four times, none of which are in the same context; the verb is enriched by being applied to teeth once;
arms are stretched once, hands none. The word 'stretcher' appears some ten-fifteen times, but it's a noun, and such concrete nouns are permissible, since they actually refer to objective things which cannot be named otherwise.
it's easy to make mistakes when you read 100 pages per hour
that's why most people don't do it
>>8322004
Also when you're 104 years old, which Bloom has been since he was about 40 or so...
thanks for your research