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Association of Neuromuscular Attributes With Performance-Based Mobility Among Community-Dwelling Older Adults With Symptomatic Lumbar Spinal Stenosis

SCHMIDT CT; WARD RE; SURI P; KIELY DK; NI P; ANDERSON DE; BEAN JF
ARCH PHYS MED REHABIL , 2017, vol. 98, n° 7, p. 1400-1406
Doc n°: 185985
Localisation : Documentation IRR

D.O.I. : http://dx.doi.org/DOI:10.1016/j.apmr.2017.02.028
Descripteurs : MA - GERONTOLOGIE, CE55 - CANAL LOMBAIRE ETROIT

OBJECTIVES: To identify differences in health factors, neuromuscular attributes,
and performance-based mobility among community-dwelling older adults with
symptomatic lumbar spinal stenosis; and to determine which neuromuscular
attributes are associated with performance-based measures of mobility. DESIGN:
Cross-sectional; secondary data analysis of a cohort study. SETTING: Outpatient
rehabilitation center. PARTICIPANTS: Community-dwelling adults aged >/=65 years
with self-reported mobility limitations and symptomatic lumbar spinal stenosis
(N=54). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Short Physical
Performance Battery score, habitual gait speed, and chair stand test. RESULTS:
Symptomatic lumbar spinal stenosis was classified using self-reported symptoms of
neurogenic claudication and imaging. Among 430 community-dwelling older adults,
54 (13%) met criteria for symptomatic lumbar spinal stenosis. Compared with
participants without symptomatic lumbar spinal stenosis, those with symptomatic
lumbar spinal stenosis had more comorbidities, higher body mass index, greater
pain, and less balance confidence. Participants with symptomatic lumbar spinal
stenosis had greater impairment in trunk extensor muscle endurance, leg strength,
leg strength asymmetry, knee flexion range of motion (ROM), knee extension ROM,
and ankle ROM compared with participants without symptomatic lumbar spinal
stenosis. Five neuromuscular attributes were associated with performance-based
mobility among participants with symptomatic lumbar spinal stenosis: trunk
extensor muscle endurance, leg strength, leg strength asymmetry, knee flexion
ROM, and knee extension ROM asymmetry. CONCLUSIONS: Community-dwelling older
adults with self-reported mobility limitations and symptomatic lumbar spinal
stenosis exhibit poorer health characteristics, greater neuromuscular impairment,
and worse mobility when compared with those without symptomatic lumbar spinal
stenosis. Poorer trunk extensor muscle endurance, leg strength, leg strength
asymmetry, knee flexion ROM, and knee extension ROM asymmetry were associated
with performance-based mobility among participants with symptomatic lumbar spinal
stenosis.
CI - Copyright (c) 2017 American Congress of Rehabilitation Medicine. All rights
reserved.

Langue : ANGLAIS

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