The Pacific Fatigue Lab is dedicated to research concerning the functional aspects of Chronic Fatigue Syndrome and related illnesses. We aim to educate patients in conjunction with health, fitness and legal professionals. Our goal is to facilitate an understanding of the biological basis for fatigue and provide objectively determined therapeutic interventions that will improve quality of life for this population.

Our collaboration with the Workwell Foundation and the University of the Pacific's Sport Sciences Department has fostered continued research and allows us to provide services for patients on the University campus.

-Staci Stevens (2006)

Published Research



Book Chapters:

Snell, C.R., VanNess, J.M., Stevens, S.R., Phippen, S., & Dempsey, W.L.. Therapeutic Exercise in CFS: Why Working-Out Doesn't Always! In Jason, L.A., Fennell, P., Taylor, R.R. (Ed.), (2003). Handbook of Chronic Fatigue Syndrome. New York, NY: John Wiley & Sons, Inc.


Manuscripts:

Snell, C.R., VanNess, J.M., Strayer, D.R. and Stevens, S.R. (2005). Exercise and immune function in male and female chronic fatigue syndrome patients. International Journal of In Vivo Research, 19:387-390.


Snell, C.R., VanNess, J.M., and Stevens, S.R. (2004). When working out doesn't work out. The CFIDS Chronicle; 17(3): 6-9.


VanNess, J. M., Snell, C. R., Dempsey, W. L., Strayer, D. R. & Stevens, S. R. (2003). Subclassifying chronic fatigue syndrome through exercise testing. Medicine and Science in Sports and Exercise 35 (6), 908-913.


Snell, C.R. VanNess, J.M., Strayer, D.R., & S.R. Stevens. (2002). Physical performance and prediction of 2-5A synthetase/RNase L antiviral pathway activity in patients with chronic fatigue syndrome. International Journal of In Vivo Research, 16(2):107-9.


Stevens, S. R. & Potratz, E. (Spring, 2002). Top ten energy saving tips. The CFIDS Chronicle 15 (2), 18.


VanNess, J. M., Snell, C. R., Fredrickson, D. M., Strayer, D. R. & Stevens, S. R., (2001). Assessment of functional impairment by cardiopulmonary exercise testing in patients with chronic fatigue syndrome. Journal of Chronic Fatigue Syndrome 8 (3/4), 103-109.


Snell, C. R., Stevens, S. R., & VanNess, J. M. (2001). Chronic fatigue syndrome, Ampligen, and quality of life: a phenomenological perspective. Journal of Chronic Fatigue Syndrome, 8 (3/4), 117-121.


Snell, C. R., VanNess, J. M., & Stevens, S. R. (2000, Fall). A realistic approach to exercise for CFS patients. CFS Research Review 1(4), 4, 5, 8.


Stevens, S. R., Snell, C. R., & VanNess, J. M. (2000, October). Exercise testing for diagnosis of CFS. AACFS Newsletter.


Stevens, S. R. (2000). Students: save energy. The CFIDS Chronicle, 13 (1), 17.


Snell, C. R. & Stevens, S. R. (1998). Opening the envelope. The CFIDS Chronicle, 11 (2), 12-13.


Stevens, S. R. (1995). Using exercise testing to document functional disability in CFS. Journal of Chronic Fatigue Syndrome. 1 (3/4), 127-129.


Abstracts:

J Mark VanNess, Christopher R. Snell, Staci R. Stevens, Lucinda Bateman and Betsy Keller (June, 2006). Using Serial Cardiopulmonary Exercise Tests to Support a Diagnosis of Chronic Fatigue Syndrome. Medicine & Science in Sports & Exercise 38 (5), S85.


Christopher R. Snell, J Mark VanNess, Staci R. Stevens, Lucinda Bateman and Betsy Keller (June, 2006). Intravenous Saline Administration Improves Physical Functioning in a Patient with Chronic Fatigue Syndrome. Medicine & Science in Sports & Exercise 38 (5), S359.


J. Mark VanNess, Christopher R. Snell, Staci R. Stevens, Randi Gibbons-Radin, and Betsy Keller (October, 2004). Impaired aerobic metabolism 24-hours post exercise in chronic fatigue syndrome. American Association of Chronic Fatigue Syndrome’s 7th International Research and Clinical Conference, Madison, WI.


J.M. VanNess, C.R. Snell, S.G. Phippen, D.R. Strayer, & S.R. Stevens (May, 2003). Anaerobic Threshold for the determination of functional capacity in Chronic Fatigue Syndrome. Medicine & Science in Sports & Exercise 35 (55), S234.


C.R. Snell, J.M. VanNess, D.R. Strayer & S.R. Stevens (May, 2003). Immune dysfunction and reduced oxygen consumption in patients with chronic fatigue syndrome (CFS). Medicine & Science in Sports & Exercise 35 (55), S234.


VanNess, J.M., C.R. Snell, S.R. Stevens, S.G. Phippen and D.R. Strayer. Impairment and gender differences in Chronic Fatigue Syndrome. The FASEB Journal, 17(5):562.10, 2003.


VanNess, J. M., Snell, C. R., Strayer, D. R., Stevens, S. R., Dempsey W.L. & AMP-516 Investigators (2003, January). Gender, Exercise Capacity, and Chronic Fatigue Syndrome. American Association of Chronic Fatigue Syndrome's 6th International Research and Clinical Conference, Chantilly, VA.


Snell, C. R., VanNess, J.M., Stevens, S. R. & Dempsey W. L.. (2003, January). The Phenomenology of Post-Exertional Malaise. American Association of Chronic Fatigue Syndrome's 6th International Research and Clinical Conference, Chantilly, VA.


Dempsey, W.L., J.M. VanNess, C.R. Snell, S.R. Stevens, and D.R. Strayer (2002, November). Blunted cardiovasuclar responses to exercise imply autonomic dysfunction in chronic fatigue syndrome. Southwest American College of Sports Medicine, Las Vegas, NV.


Snell, C. R., J.M. VanNess, S.R. Stevens, W.L. Dempsey, and D.R. Strayer (May, 2002). Using American Medical Association Guidelines for classification of disability in chronic fatigue syndrome. Medicine & Science in Sports & Exercise 34 (5), S74.


VanNess, J. M., Snell, C. R., Fredrickson, D. M., Strayer, D. R., LaRosa, E., Treutler, K., & Stevens, S. R. (2000). Exercise testing in patients with chronic fatigue syndrome (CFS)--Diagnostic tool? Federation of the American Society for Experimental Biology Journal, 14(4): LB41.


Snell, C. R., VanNess, J. M., Fredrickson, D. M., Strayer, D. R., Treutler K., LaRosa, E., Stevens, S. R., and AMP-516 Investigators* (2000). Variability of repeated exercise testing in patients with chronic fatigue syndrome. Federation of the American Society for Experimental Biology Journal, 14 (4): LB42.