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Andrew Chapman
05-20-2002, 08:47 AM
To all list members,

The following message was posted on Thursday 16-05-02:

"I am searching for EMG studies of the lower leg muscles during running gait
(and also during cycling as a lesser priority). There are an endless number
of studies which have investigated tibialis anterior, gastroc and soleus
function in varying contexts, but to my surprise I have found very few
studies that investigate the activity of tibialis posterior, peroneus longus
and brevis.

I have searched web of science, Medline (full reference set) and sports
discus. Interesting articles that I did find include:

1.Reber, L., Perry, J., & Pink, M. (1993). Muscular control of the ankle in
running. American Journal of Sports Medicine, 21, 805-810.

2.Mann, R. A. (1986). Comparative electromyography of the lower extremity in
jogging, running, and sprinting. American Journal of Sports Medicine, 14,
501-510.

Reber et al. used fine-wire EMG to investigate the function of gastroc,
peroneus brevis (but not longus apparently), tib post, tib ant and soleus
during running. Even in this study, few references were made to earlier
studies that had recorded the patterning of muscles other than gastroc,
soleus and tib ant.

There appears to be some useful information in biomechanics and sports
medicine textbooks in relation to running, and these I am still searching.
But if anybody has any further articles/sources that may be useful, these
would be much appreciated.

thank you for your time

I am more than happy to provide a summary of responses if others are
interested."
-----
Following is a summary of responses:

"You are correct with your statement that there are very few studies that
investigate the activity of tibialis posterior, peroneus longus and
brevis in running. This may be partly due to the fact that the tibialis
posterior and peroneus brevis cannot be easily measured using surface
electrodes. I am currently conducting a running study and I do have data
for the peroneus longus muscle during overground running (9000 trials at
4 m/s). However, I am still in the process of analysing the data so if
you could provide me with more detailed information of what it is you
are looking for I might be able to help you out.

Best regards,
Anne
________________________________________________
A n n e M u e n d e r m a n n
Ph.D. Candidate Medical Science (Biomechanics)
Human Performance Laboratory
University of Calgary
Phone (403) 220-2802
Fax (403) 284-3553
Email ahau@kin.ucalgary.ca"
---------
"Using the EMG for muscle activity study will depend on the function of
muscles, major active muscles, and study you are interested. and for surface
emg, the size and location of muscle interested. There is no surprised that
most of researchers focused on TA, GAS, and soleus since they are the major
ones. For instance my study of Down's gait and put surface EMG on Gastroc,
Peroneus B & L, TA, if the force three muscles are active during the same
gait cycle period , there is no sense to place on all of them.
Please refer Dynamics of Human Gait by Dr. Christopher Vaughan Chapter 4."

Dr. S.W. Yang [swyang@bme.ym.edu.tw]
-----
"http://guardian.curtin.edu.au/cga/data/

see the entry by At Hof

=====
Dr. Chris Kirtley MD PhD
Associate Professor
Dept. of Biomedical Engineering
Catholic University of America
620 Michigan Ave NE, Washington, DC 20064
Tel. 202-319-6247, fax 202-319-4287
Email: kirtley@cua.edu"
-----
"You are absolutely correct, there are not enough dynamic studies assessing
tibialis posterior simply because it is pretty difficult to detect its
muscle activity using surface electrodes. The only way would be by either
using needle or wire electrodes and you would not have control subjects or
patients volunteering for the study. I tried to do this in 1991 and tried
the needle electrodes on myself and it was very very painful. I have not
since then tried to do so but I would be very interested to hear the replies
to see if anybody has found a painless way to measure it under dynamic
activity. You might be interested in the article I published two years ago:

Lower Limb Muscle Dysfunction May Contribute to Foot Ulceration in Diabetic
Patients, Clinical Biomechanics (2000), 15(1), 37-45. R J Abboud, D I
Rowley, R W Newton

Dr R J Abboud
Master of Orthopaedic Surgery (MCh Orth) Course Director
Director, Foot Pressure Analysis Laboratory/Clinic"

-----

Andrew Chapman
BPhty(Hons.)(UQ)
PhD Candidate
Department of Physiotherapy
The University of Queensland
St. Lucia, 4072, QLD, Australia.

and

Department of Physical Therapy
Australian Institute of Sport
P.O.Box 176
Belconnen, 2616, ACT, Australia.

email: andrewchapman@ozemail.com.au
phone: + 61 2 6214 7943
fax: + 61 2 6214 7953
mobile: + 61 438 115 605

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