11/19/2023 0 Comments Brain stem function and balance![]() ![]() Compared with a general population of older adults who fall, persons with stroke (PwS) who fall are twice as likely to sustain a hip fracture ( Forster and Young, 1995 Langhorne et al., 2000 Pouwels et al., 2009 Winstein et al., 2016). The study corroborates and extends previous findings by demonstrating that balance control, gait, and lower limb function are all affected mainly by damage to essentially the same brain structures, namely-the CST and adjacent structures in the capsular-putaminal region.įalls occur in up to 70% of stroke victims during the first 6 months after discharge from hospital or rehabilitation setting ( Forster and Young, 1995 Davenport et al., 1996 Weerdesteyn et al., 2008 Batchelor et al., 2012). Test scores of RHD and LHD patients were affected largely by damage to homologous regions, with the LHD group showing a wider distribution of “significant” voxels. Balance, gait, and hemiparetic lower limb function showed much overlap of the corresponding “significant” voxel clusters. An additional significant impact was found to lesions affecting the putamen and the external capsule (EC). Our results show that voxel clusters where damage exerted a significant impact on balance, gait and lower-limb function were found in the corticospinal tract (CST), in its passage in the corona radiata and in the posterior limb of the internal capsule. Lesion effects were analyzed separately for left and right hemisphere damaged (LHD, RHD) patients, using voxel-based lesion-symptom mapping (VLSM). ![]() In addition, the Berg Balance Scale (BBS), 6 Minute Walk Test (6MWT) and Lower Extremity Fugl-Meyer (LEFM) were measured. Fall threshold (i.e., perturbation intensity that results in a fall into the harness system) was measured. ![]() Forty-six subacute PwS were exposed to forward, backward, right and left unannounced horizontal surface translations in six increasing intensities while standing. We aimed to assess the impact of lesion characteristics on reactive and anticipatory balance capacity, gait, and hemiparetic lower limb function, in PwS. Reactive balance control is essential for fall prevention, however, only a few studies have explored the effects of lesion characteristics (location and extent) on balance control in PwS. 3Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israelįalls are a leading cause of serious injury and restricted participation among persons with stroke (PwS).2Loewenstein Rehabilitation Hospital, Ra’anana, Israel.1Department of Physical Therapy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.Shirley Handelzalts 1,2* Itshak Melzer 1 Nachum Soroker 2,3 ![]()
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