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Studies Using StepWatchTM

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StepWatch-TM deviceby Cyma, Inc.

Researchers around the world have started to publish results of studies using the StepWatchTM. Researchers have tested the accuracy of the device on diverse population with gait abnormalities. Results are consistency above 96 percent accurate, with the majority more then 98 percent accurate. StepWatchTM measures have been shown to be powerful indicators of function and outcome.

Selected Peer-Reviewed Publications

  1. Silva M, Shepherd EF, Jackson WO, Dorey FJ, Schmalzried TP. Average patient walking activity approaches 2 million cycles per year: Pedometers under-record walking activity. J Arthroplasty, 17(6):693-7, Sept 2002.
  2. Lawthom C, Van Deursen RMW, Wiles CM. An improved method of quantifying activity levels in neurological patients. Journal of Neurology, Neurosurgery & Psychiatry, 72:140, 2002.
  3. Macko MF, Haeuber E, Shaughnessy M, Coleman KL, Boone DA, Smith GV, Silver KH. Microprocessor-Based Ambulatory Activity Monitoring in Stroke Patients. Med Sci Sp Exerc, 34 (3): 394-399, 2002.
  4. Resnick B, Nahm ES, Orwig D, Zimmerman SS, Magaziner J. Measurement of activity in older adults: reliability and validity of the Step Activity Monitor. J Nurs Meas, 9 (3): 275-90, 2001.
  5. Schmalzried TP, Shepherd EF, Dorey FJ, Jackson WO, dela Rosa M, Fa'vae F, McKellop HA, McClung CD, Martell J, Moreland JR, Amstutz HC. The John Charnley Award. Wear is a function of use, not time. Clin Orthop, 381: 36-46, 2000. [Reprints may be requested from T. Schmalzried at Joint Replacement Institute, 2400 S. Flower St., Los Angeles, CA 90007, USA; E-mail: jri_oh@compuserve.com]
  6. McDuffee LA, Stover SM, Coleman K. Limb loading activity of adult horses confined to box stalls in an equine hospital barn. Am J Vet Res, 61 (3): 234-237, 2000.
  7. McDonald CM, Walsh DD, Widman L, Walsh SA, Coleman K. Use of the Step Activity Monitor for continuous objective three-day physical activity monitoring in children. Dev Med Child Neuro, 80 (Suppl 36), 1999.
  8. Widman L, Walsh DD, Walsh SA, Coleman K, McDonald CM. Use of the Step Activity Monitor for continuous objective physical activity assessment in children with duchene muscular dystrophy. Dev Med Child Neuro, 80 (Suppl 20), 1999.
  9. Shepherd EF, Toloza E, McClung CD, Schmalzried TP. Step Activity Monitor: Increased accuracy in quantifying ambulatory activity. J Orthop Res, 17 (5): 703-708, 1999. [Study conducted with recipients of total hip replacement.]
  10. Coleman KL, Smith DG, Boone DA, Joseph AW, del Aguila MA. Step Activity Monitor: Long-term continuous recording of ambulatory function. J Rehabil Res Dev, 36 (1): 8-18, 1999. [on-line URL: http://www.vard.org/jour/99/36/1/colem361.htm]

Selected Abstracts from Conference Proceedings (by Date)

  1. Coleman K, Boone D, Smith DG, Laing L, Mathews D. Relative influence of changing the prosthetic foot vs. the socket suspension system on ambulatory activity and patient satisfaction. Proceedings of the 10th World Congress of the International Society for Prosthetics and Orthotics. Glasgow, Scotland, TO6-2, July 2-6 2001.
  2. Coleman K, Boone D, Smith DG, Laing L, Mathews D, Czerneicki J. Crossover trial comparing Alpha liner with pelite liner for trans-tibial prostheses using ambulatory activity and questionnaire responses. Proceedings of the 10th World Congress of the International Society for Prosthetics and Orthotics. Glasgow, Scotland, WO5-5, July 2-6 2001.
  3. Coleman K, Boone D, Smith DG, Laing L. Progress following elective trans-tibial amputation: One year of continuous ambulatory monitoring: A case study. Proceedings of the 10th World Congress of the International Society for Prosthetics and Orthotics. Glasgow, Scotland, ThO11-5, July 2-8 2001.
  4. Smith DG, Coleman KL, del Aguila MA, Boone DA. Functional ambulation of geriatric male diabetics: Correlation of step count based gait assessment with the SF-36. Proceedings of the 65th Annual Meeting of the American Academy of Orthopaedic Surgeons, New Orleans, LA, March 19-23, 1998.
  5. Coleman KL, del Aguila MA, Boone DA, Smith DG. Self-selected walking velocity as a measure of function: Relationship to real world ambulatory activity of diabetics. In: Soede M, Verbout AJ, Swart M, eds. Ninth World Congress of the International Society for Prosthetics and Orthotics, Amsterdam, The Netherlands, 371-373, June 28-July 3, 1998.
  6. Coleman KL, Boone DA, Smith DG, Mathews DE, Laing LS. Functional outcome assessment using objective measures of patient satisfaction and gait activity: A comparison of 2 feet. In: Soede M, Verbout AJ, Swart M, eds. Ninth World Congress of the International Society for Prosthetics and Orthotics, Amsterdam, The Netherlands, 690-692, June 28-July 3, 1998.
  7. Smith DG, Coleman KL, Boone DA. Improved activity following elective trans-tibial amputation for pain: Outcome assessment by long-term activity monitoring (A Case Report). In: Soede M, Verbout AJ, Swart M, eds. Ninth World Congress of the International Society for Prosthetics and Orthotics, Amsterdam, The Netherlands, 728-730, June 28-July 3, 1998.

* Indicates research conducted under NIH NCMRR SBIR Grant# R44 HD39036.

Last Updated Date: 11/30/2012
Last Reviewed Date: 11/30/2012
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