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Locomotor Recovery and Compensation Post-stroke

Award Number: R01NS118009
ORGANIZATION: NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 02/15/2021
PERIOD OF PERFORMANCE END DATE: 01/31/2027

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Locomotor Recovery and Compensation Post-stroke - Project Summary The objective of this project is to identify the trajectory of neurological and locomotor recovery in patients early post-stroke and the biomechanical strategies used by patients to accomplish independent locomotion. These patterns of recovery and underlying movement strategies used to accomplish independent ambulation will be assessed during both conventional rehabilitation strategies, and following application of physical interventions, specifically high intensity training (HIT) of stepping tasks, that have been shown to strongly influence multiple measures of neurological and locomotor recovery. Our previous work suggests consistent relationships between the amount of intensity of stepping practice and locomotor recovery (walking gains) following training. However, these findings contrast directly with research that indicates a relative consistent pattern of neurological recovery (measured using specific assessments of movement capability, fractionation of individual joints, or reflex activity), irrespective of the types of interventions provided. These discrepancies may be due to differences in definitions utilized for neurological vs locomotor recovery, but also highlight the potential use of alternative movement patterns post-stroke, during which full restitution of neurological function may not occur in most patients. Rather, compensatory movement strategies must be utilized to accomplish locomotor tasks. The present project will attempt to delineate changes in neurological and locomotor recovery and the underlying strategies used to perform walking tasks (Aim 1). We will subsequently evaluate alterations in specific patterns of neurological and functional recovery in response HIT applied in the later stages post-stroke to ascertain the relative plasticity of these patterns (Aim 2). In a separate cohort, we will apply such training early post-stroke and identify alterations in movement capability and neuromuscular strategies through the recovery phases post-stroke (Aim 3). If neurological recovery is indeed predictable and deterministic, we believe patterns of locomotor recovery and compensation are also deterministic and can be categorized by the amount of movement capability and compensations observed. We further postulate that these patterns are likely malleable with specific interventions and can provide greater insight into long-term functional and neuromuscular outcomes in patients early post-stroke.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $433,029 )
2026	2026	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	001	5	3/5/2026	NON-COMPETING CONTINUATION	$43,300
2026	2026	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	5	2/2/2026	NON-COMPETING CONTINUATION	$389,729
														Subtotal = $433,029

Issue Date FY: 2025 ( Subtotal = $389,695 )
2025	2025	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	4	1/28/2025	NON-COMPETING CONTINUATION	$389,695
														Subtotal = $389,695

Issue Date FY: 2024 ( Subtotal = $0 )
2024	2023	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	3	1/31/2024	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2023 ( Subtotal = $436,603 )
2023	2023	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	3	1/28/2023	NON-COMPETING CONTINUATION	$436,603
														Subtotal = $436,603

Issue Date FY: 2022 ( Subtotal = $388,479 )
2022	2022	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	2	2/2/2022	NON-COMPETING CONTINUATION	$349,628
2022	2022	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	001	2	6/30/2022	NON-COMPETING CONTINUATION	$38,851
														Subtotal = $388,479

Issue Date FY: 2021 ( Subtotal = $394,025 )
2021	2021	TRUSTEES OF INDIANA UNIVERSITY	980 INDIANA AVE RM 2232	INDIANAPOLIS	IN	46202	MARION	USA	Extramural Research Programs in the Neurosciences and Neurological Disorders	000	1	2/20/2021	NEW	$394,025
														Subtotal = $394,025

Grand Total All Awards = $2,041,831

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Locomotor Recovery and Compensation Post-stroke

Award Number: R01NS118009

ORGANIZATION: NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 02/15/2021

PERIOD OF PERFORMANCE END DATE: 01/31/2027

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