First ChiRunning Experience

Tim Downie said:

"Donovan Rebbechi" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

On 2004-09-23, Tim Downie <[email hidden]> wrote:

Quoted message said:

Quoted message said:

Ha! You haven't seen me run. ;-) Seriously Donny, how can you possibly
comment on my bounce from 5000 miles away? I can run with my head

unmoving

Quoted message said:

Quoted message said:

in the vertical plane if I so choose. Can't you?

I knew you'd gotten into the zen thing, but I didn't know you'd mastered
levitation. Congratulations! I think you may have surpassed Oz!

Sorry Donovan, now I think you really are a [censored]. You're assuming that I'm
maintaining my altitude at the top of my "bounce" and never coming down. It
doesn't work like that. Have a look at Gordon Pirie's book.

When I think of "minimal bounce", I'm thinking of minimising vertical
displacement of center of mass. This is a function of time in the air (which
is equal to the reciprocal of stride rate minus ground contact time)

You can't eliminate displacement of center of mass. If you meant something else
by "bounce", perhaps you could say what it is (and why you'd want to reduce
or eliminate it).

Cheers,
--
Donovan Rebbechi
http://pegasus.rutgers.edu/~elflord/

"Donovan Rebbechi" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

When I think of "minimal bounce", I'm thinking of minimising vertical
displacement of center of mass. This is a function of time in the air

(which

Quoted message said:

is equal to the reciprocal of stride rate minus ground contact time)

When I run in my "minimal bounce mode", I lower my CofG and increase my
ground contact time. No levitating required and I assure you, it's a very
different from my normal gait, not just "slightly less bounce than my usual
gait".

Quoted message said:

You can't eliminate displacement of center of mass.

No, but you can reduce it greatly without having to increase cadence by
increasing ground contact time.

As I said, have a read of Gordon Pirie's book (free from
http://www.gordonpirie.com/).

Tim

In article <[email hidden]>,

Donovan Rebbechi said:

which is why we're not all turning over at over 5000
strides per minute

Yep, that rate is reserved for the Looney-Tuners.