Table of Contents
ISRN Orthopedics
Volume 2012, Article ID 727950, 5 pages
http://dx.doi.org/10.5402/2012/727950
Research Article

Activity Levels in Healthy Older Adults: Implications for Joint Arthroplasty

1Department of Anatomy and Cell Biology, Rush University Medical Center, 600 South Paulina Street, Armour Academic Facilities, Chicago, IL 60612, USA
2Section of Rheumatology, Rush University Medical Center, 600 South Paulina Street, Armour Academic Facilities, Chicago, IL 60612, USA
3Department of Orthopaedic Surgery, Rush University Medical Center, 600 South Paulina Street, Armour Academic Facilities, Chicago, IL 60612, USA

Received 27 July 2012; Accepted 15 August 2012

Academic Editors: J. Gallo and C.-H. Lee

Copyright © 2012 Laura E. Thorp et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This work evaluated activity levels in a group of healthy older adults to establish a target activity level for adults of similar age after total joint arthroplasty (TJA). With the decreasing age of TJA patients, it is essential to have a reference for activity level in younger patients as activity level affects quality of life and implant design. 54 asymptomatic, healthy older adults with no clinical evidence of lower extremity OA participated. The main outcome measure, average daily step count, was measured using an accelerometer-based activity monitor. On average the group took 8 8 1 3 ± 3 6 1 1 steps per day, approximately 4000 more steps per day than has been previously reported in patients following total joint arthroplasty. The present work provides a reference for activity after joint arthroplasty which is relevant given the projected number of people under the age of 65 who will undergo joint arthroplasty in the coming years.