You're looking at Less Wrong's discussion board. This includes all posts, including those that haven't been promoted to the front page yet. For more information, see About Less Wrong.

therufs comments on Group Rationality Diary, May 1-15 - Less Wrong Discussion

3 Post author: therufs 01 May 2014 02:42AM

You are viewing a comment permalink. View the original post to see all comments and the full post content.

Comments (28)

You are viewing a single comment's thread. Show more comments above.

Comment author: therufs 18 May 2014 11:13:24PM 0 points [-]

I'm a little concerned about "bend and bounce" in the Lifetime Ladder. Doesn't bouncing -> joint problems?

Comment author: bbleeker 19 May 2014 07:25:20AM 0 points [-]

I don't know, why would that cause problems? I'm only just starting rung 15 today. I'm actually not sure what that 'bending' exercise is for, or why adding a bounce would make it more difficult.

Comment author: therufs 19 May 2014 02:02:55PM 1 point [-]

A few sources are short on citations, but basically say "don't bounce, you'll hurt yourself": http://web.mit.edu/tkd/stretch/stretching_4.html#SEC29 http://www.arthritisselfmanagement.com/health/exercise-and-physical-therapy/stretching/?page=print

The AAOS also says "don't do it": http://orthoinfo.aaos.org/topic.cfm?topic=A00310

I'd guess the first-ladder bending exercise is meant to stretch your hamstrings, mid/lower back, and abs, as well as serving as a gentle warmup. Adding a "bounce" would ostensibly further stretch the hamstrings.

I am not a doctor, but would suggest replacing anything bouncy with a deep inhale + slight release of stretch followed by exhale + deepening of stretch (in this case, just folding over some more.)

Comment author: bbleeker 20 May 2014 09:47:31AM 0 points [-]

I think our guy is maybe just using the wrong word. What he says is 'bounce up a few inches', and I think he probably means the same as you when you say 'slight release of stretch'. The bad kind of stretch, what your first link calls 'ballistic', would be bouncing down. But because of the 'bounce' in his description, people might do that anyway. :( I like your way of describing it much better, it is clearer and safer.