1. Richard T. Cotton. American Council on Exercise, (1999). Clinical exercise specialist manual: ACE's source for treating special populations. San Diego, CA: American Council on Exercise.


2. American Parkinson Disease Association, (1997). Parkinson's disease handbook: A guide for patients and their families. New Brunswick, NJ: American Parkinson Disease Association.


3. Kathleen E. Biziere, Matthias C. Kurth, (1997). Living with Parkinson's disease. NY: Demos Vermande.


4. Caird, F., (1991). Rehabilitation in Parkinson's disease. Lippincott Williams & Wilkins.


5. Armeda F. Ferrini, Rebecca L. Ferrini, (2001). Health in the Later Years. San Francisco, CA: McGraw/Hill.


6. Lieberman, A., & Williams, F., (1993). Parkinson's disease; The complete guide for patients and caregivers. NY: Fireside.

1. Aita, J., (1982). Why patients with Parkinson's disease fall Journal of the American Medical Association. 247(4), 515-516.


2. Barker, S., Grant, A., & Hodnicke, D., (1998). Parkinson's disease: A holistic approach American Journal of Nursing. 98(11), 48a-48h.


3. Behrman, A., Teitelbaum, P., & Cauraugh, J., (1998). Verbal instructional sets to normalize the temporal and spatial gait variables in Parkinson's disease Journal of Neurology, Neurosurgery, and Psychiatry. 65(4), 580-582.


4. Comella, C., Stebbins, G., Brown, N., & Goetz, C., (1994). Physical therapy and Parkinson's disease: A controlled clinical trial Neurology. 44, 376-378.


5. Cunnington, R., Iansek, R., Bradshaw, J., & Phillips, J., (1995). Movement-related potentials in Parkinson's disease; Presence and predictability of temporal and spatial cues Brain. 118, 935-950.


6. Enzensberger, W., & Fischer, P., (1996). Metronome in Parkinson's disease Lancet. 347(9011), 1337.


7. Formisano, R., Pratesi, L., Modarelli, F., Bonefati, V., & Meco, G., (1992). Rehabilitation and Parkinson's disease Scandinavian Journal of Rehabilitation and Medicine. 24(3), 157-160.


8. Georgiou, N., Iansek, R., Bradshaw, J., Phillips, J., Mattingly, J., & Bradshaw, J. A., (1993). An evaluation of the role of internal cues in the pathogenesis of Parkinsonian hypokinesia Brain. 116, 1575-1587.


9. Goetz, C., Thelen, J., MacLeod, C., Carvey, P., Bartley, E., & Stebbins,G., (1993). Blood levodopa levels and unified Parkinson's disease rating scale function: with and without exercise. Neurology. 43(5), 1040-1042.


10. Knutsson, E., (1972). An analysis of Parkinsonian gait Brain. 95, 475-486.


11. Kuroda, K., Tatara, K., & Takatorage, T., (1992). Effect of physical exercise on mortality in patients with Parkinson's disease ACTA Neurology Scandinavia. 86(1), 55-59.


12. Limousin, P., Krack, P., & Pollack, P., (1998). Electrical stimulation of the subthalamic nucleous in advanced Parkinson's disease New England Journal of Medicine. 339(16), 1105-11.


13. Marsden, C., (0). Parkinson's disease Lancet. (335), 948-952.


14. Morris, M., Iansek, R., Matyas, T., & Summers, J., (1994). The pathogenesis of gait hypokinesia in Parkinson's disease Brain. 117, 1169-1181.


15. Morris, M., Iansek, R., Matyas, T., & Summers, J., (1994). Ability to modulate walking cadence remains intact in Parkinson's disease Journal of Neurology, Neurosurgery, and Psychiatry. 57, 1532-1534.


16. Morris, M., Iansek, R., Matyas, T., & Summers, J., (1996). Stride length regulation in Parkinson's disease: Normalization strategies and underlying mechanisms Brain. 119, 551-568.


17. Palmer, S., Mortiner, J., Webster, D., Bistevino, R., & Dickman, G., (1986). Exercise therapy for Parkinson's disease Archives of Physical Medicine and Rehabilitation. 67(10), 741-745.


18. Reuter, I., Engelhardt, M., Stecker, K., & Baas, H., (1999). Therapeutic value of exercise training in Parkinson's disease Medicine and Science in Sports and Exercise. 31(11), 1544-1549.


19. Schenkman, M., Cutson, T., Kuchibhatla, M., Chandler, J., Pieper, C., Ray, L., et al., (1998). Exercise to improve spinal flexibility and function for people with Parkinson's disease: A randomized, controlled trial Journal of the American Geriatrics Society. 46, 1207-1216.


20. Stanley, R., Protas, E., & Jankovic, J., (1999). Exercise performance in those having Parkinson's disease and healthy normals Medicine and Science in Sports and Exercise. 31(6), 761-766.