The candidate is a Junior investigator and physical therapist presently conducting quantitative studies of balance and movement control as they pertain to the evaluation and restoration of functional movement in adults. His immediate long-term objectives are: to establish an independent research line dedicated to the study of movement dysfunction which impairs upright mobility in older adults; to identify age-related changes in functional movement control processes which lead to impaired upright mobility; to develop, implement, and test a comprehensive interactive systems model for the quantitative assessment of upright mobility in the aged; to identify patient specific and process specific interventions for the rehabilitation training of upright mobility in the elderly; and to test the efficacy of these rehabilitation approaches. The general hypotheses of this research are that protective stepping responses represent an important strategy for the preservation of balance in human bipeds, and that such responses deteriorate due to age-related changes in one or more neuromusculoskeletal mechanisms. Stepping response function among young adults and older individuals without and with a history of falls will be evaluated by examining muscle activation patterns, kinetic responses (ground reaction forces and resultant joint torques), and total body motion during intentional and induced stepping. The senior advisor and his research group are at the leading edge of Investigating fundamental interactive neural and musculoskeletal movement control processes and their applications to rehabilitation medicine. This approach has not previously been specifically applied to the multifactorial movement control problems which confront aging human beings. Close collaborations with the Sensory Motor Performance Program of the Rehabilitation Institute of Chicago, the Buehler Center on Aging of Northwestern University Medical School (NUMS), and the Division of Geriatric Medicine, (NUMS) will boost dramatically the applicant's research training efforts to advance physical therapy applications to problems of upright mobility in the aged. Additional training in operant conditioning based approaches to balance rehabilitation in the elderly will be acquired at the Rehabilitation and Training Center of Emory University which is a leading facility in the use of biofeedback rehabilitation.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Scientist Development Award - Research & Training (K01)
Project #
5K01AG000581-02
Application #
3068539
Study Section
Biological and Clinical Aging Review Committee (BCA)
Project Start
1992-08-10
Project End
1997-07-31
Budget Start
1993-08-15
Budget End
1994-07-31
Support Year
2
Fiscal Year
1993
Total Cost
Indirect Cost
Name
Northwestern University at Chicago
Department
Type
Schools of Medicine
DUNS #
005436803
City
Chicago
State
IL
Country
United States
Zip Code
60611
Rogers, Mark W; Johnson, Marjorie E; Martinez, Kathy M et al. (2003) Step training improves the speed of voluntary step initiation in aging. J Gerontol A Biol Sci Med Sci 58:46-51
Rogers, Mark W; Hedman, Lois D; Johnson, Marjorie E et al. (2003) Triggering of protective stepping for the control of human balance: age and contextual dependence. Brain Res Cogn Brain Res 16:192-8
Rogers, M W; Wardman, D L; Lord, S R et al. (2001) Passive tactile sensory input improves stability during standing. Exp Brain Res 136:514-22
Rogers, M W; Kukulka, C G; Brunt, D et al. (2001) The influence of stimulus cue on the initiation of stepping in young and older adults. Arch Phys Med Rehabil 82:619-24
Rogers, M W; Hedman, L D; Johnson, M E et al. (2001) Lateral stability during forward-induced stepping for dynamic balance recovery in young and older adults. J Gerontol A Biol Sci Med Sci 56:M589-94
Lord, S R; Rogers, M W; Howland, A et al. (1999) Lateral stability, sensorimotor function and falls in older people. J Am Geriatr Soc 47:1077-81
Pai, Y C; Rogers, M W; Patton, J et al. (1998) Static versus dynamic predictions of protective stepping following waist-pull perturbations in young and older adults. J Biomech 31:1111-8
Rogers, M W (1996) Disorders of posture, balance, and gait in Parkinson's disease. Clin Geriatr Med 12:825-45
Rogers, M W; Hain, T C; Hanke, T A et al. (1996) Stimulus parameters and inertial load: effects on the incidence of protective stepping responses in healthy human subjects. Arch Phys Med Rehabil 77:363-8
Rogers, M W; Pai, Y C (1995) Organization of preparatory postural responses for the initiation of lateral body motion during goal directed leg movements. Neurosci Lett 187:99-102