Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31522
Title: Stepping towards prevention of bone loss after stroke : a systematic review of the skeletal effects of physical activity after stroke
Authors: Borschmann, K
Pang, MYC 
Bernhardt, J
Iuliano-Burns, S
Issue Date: 2012
Source: International journal of stroke, 2012, v. 7, no. 4, p. 330-335
Abstract: Bone loss after stroke is pronounced, and contributes to increased fracture risk. People who fracture after stroke experience reduced mobility and increased mortality. Physical activity can maintain or improve bone mineral density and structure in healthy older adults, likely reducing fracture risk. The purpose of this systematic review was to investigate the skeletal effects of physical activity in adults affected by stroke. A search of electronic databases was undertaken. Selection criteria of trials were • prospective and controlled • physical activity-based intervention • participants with history of stroke, and • bone-related outcome measures. Effect sizes were calculated for outcomes of paretic and nonparetic limbs. Three of 349 identified records met the inclusion criteria. Small effect sizes were found in favor of physical activity in adults with chronic stroke (n=95, 40% female, average age 63·8 years, more than one-year poststroke). Patients in intervention groups had significantly higher changes in femoral neck bone mineral density, tibial cortical thickness and trabecular bone mineral content of the paretic limb, compared with controls (P<0·05). It is not known whether these benefits reduced fracture risk. There are limited studies investigating the skeletal effect of physical activity for adults poststroke. Given the increased risk of, and poor outcomes following a fracture after stroke, randomized trials are warranted to investigate the benefits of physical activity on bone, after stroke. Interventions are likely to be beneficial if implemented soon after stroke, when bone loss appears to be rapid and pronounced.
Keywords: Bone
Exercise
Fracture
Osteoporosis
Physical activity
Stroke
Systematic review
Publisher: Wiley-Blackwell
Journal: International Journal of Stroke 
ISSN: 1747-4930
DOI: 10.1111/j.1747-4949.2011.00645.x
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