We are looking for healthy men and women aged 35-65 years for a research project.

We are measuring the size and function of some muscles of the lower back and abdomen in people who do not have back pain. All measurements are simple and painless and will take place over?two sessions no more than?two weeks apart. Session?one lasts 90 minutes. Session?two lasts 60 minutes.

If you are interested in taking part,?please email Simon Brown sb7x07@soton.ac.uk or call 023 8059 5306. If you have friends or relatives who might be interested please pass this information on to them.

The study has been approved by the faculty of health sciences ethics committee (no: FoHS-ETHICS-5783)