View Full Version : percent lifting of BM

Andrew Mahar
07-24-1998, 02:32 AM
Hello all,

I have a question or two regarding the strength to weight ratio
considerations for different populations. I have reviewed the archives
searching for parameters set for SAFE, effective lifting percentages per
body mass, but have not found a straight forward answer (if there is
one). I admit that I am unfamiliar with this particular area of study
and couldn't immediately pull journal publications.

I am ignoring the age group 1-20 for both males and females so that
puberty and the effects of growth changes to bone and muscle tissue have
reached completion. NOTE: I do agree that there are still adaptive
changes due to beginning/stopping exercise and other factors.

The lifts I am only concerned with at this point are lateral
flexion/extension of the trunk and anterior flexion of the trunk with
the feet placed shoulder width apart and symmetrically oriented along
the AP direction.

(1) Does research/practical experience state that a "light" lift is
considered to be 10% of BM and a "heavy" lift to be 25% of BM for any
individual irrespective of height, weight and height-to-weight ratio??

(2) Are these percentages too low, too high, or are they effective for
testing both a 35 year old male and a 70 year old female (thus, an age
independent measure)??

I realize that age has a high correlation with absolute lifting strength
and I am trying to determine conditions which will prevent injury, while
allowing me to make comparisons of people in different age groups based
on a lift of a mass relative to some percent of BM.

The usual reply/posting SOPs apply here. Thanks for your help.


__________________________________________________ ________
Andrew T. Mahar
Research Biomechanist

Qualisys, Inc.
148 Eastern Blvd., Ste. 110, Glastonbury, CT 06033
Tel: 860-657-3585 Fax: 860-657-3595
Email: andrew@qualisys.com http://www.qualisys.com
__________________________________________________ ________

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