Dr. Hoover:

We used Entran accelerometers (EGA3-series) for treadmill walking
studies in the past. We placed a 5g triaxial model on the head, and a
25g triaxial model on the shank to measure shock transmission at heel

I think the EGA3 accelerometers (and most in general) are designed to be
installed on a test structure and rarely moved. They are not made for
biomechanical applications where the sensor is installed/uninstalled
often. My suggestion would be that if you choose Entran as your
accelerometer vendor, then spend the extra money for the higher-overload

Hope this helps.

Chris Miller

Neurosciences Laboratory

Wyle Labs/NASA JSC

Houston, TX

The respondent below forwarded brochures in pdf format; the content
information is available on web at http://www.biometricsltd.com

Dear Don

I noticed your message on the Board and thought the attached information
on the Biometrics accelerometer would be of interest to you. Please
find attached our brochure and prices for your initial information. If
you would like to discuss the products further, our Technical Director
will be happy to speak with you and discuss your specific application.

We can be reached on the number shown below (Toll Free telephone 1-800
543 6698 until 11:45am Eastern Time)

Kind regards

Mary Wilding, Sales Manager

Biometrics Ltd

International Tel: +44 1495 200800

International Fax: +44 1495 200806

N. American toll free tel: 1-800 543 6698 National Tel: 01495 200800
National Fax: 01495 200806

From: "Hoover, Don"


Sent: Wednesday, May 16, 2007 2:39 PM

Subject: [BIOMCH-L] Seeking information on accelerometers


We're considering integrating accelerometers into a few studies

currently in the preliminary stages, and we're interested in learning

more about the pros and cons of these instruments currently available on

the commercial market. We have some experience using some

accelerometers for studies involving walking and running activities.

We're particularly interested in comments and insights from individuals

who have used accelerometers to measure physical activity and energy

expenditure in "atypical" activities for these devices such as swimming,

biking, etc. Insights on cost, ease of calibration, reliability,

durability, and other variables of this nature are particularly helpful.

I will compile the responses and post the summary on the listserv.

Thanks in advance,


Don Hoover, PT, PhD, CSCS

Assistant Professor

Physical Therapy Education

Rockhurst University

Don Hoover, PT, PhD, CSCS

Assistant Professor

Physical Therapy Education

Rockhurst University

1100 Rockhurst Road

Kansas City, MO 64110

816-501-4174 (direct)

800-842-6776 ext 4174 (toll-free)