Immediate effects of talus-stabilizing taping on balance and gait parameters in patients with chronic stroke: a cross-sectional study

Background: Talus-stabilizing taping (TST) may improve ankle range of motion and gait performance by providing a posterior–inferior talar glide in a closed-chain dorsiflexion position.

Objectives: This study aimed to investigate the immediate effects of TST on balance and gait parameters in patients with chronic stroke.

Methods: Twenty post-stroke patients participated in this study. Each participant performed tests under three conditions (TST, barefoot, and conventional ankle-foot orthosis [AFO]), in random order. Before testing, the patients walked for 10 min under the three conditions, followed by a 5 min rest period. The outcome measures were static balance ability (SBA), timed up-and-go (TUG) test results, and gait parameters evaluated using a 6-m-long gait mat. One-way repeated measures analysis of variance was used to determine the difference in balance and gait parameters under the three conditions.

Results: SBA more significantly improved in the TST condition than in the barefoot condition. SBA more significantly improved in the conventional AFO condition than in the barefoot condition. The TUG test results more significantly improved in the TST condition than in the conventional AFO and barefoot conditions. Walking speed, cadence, and affected side and unaffected side step and stride lengths more significantly improved in the TST condition than in the conventional AFO and barefoot conditions.

Conclusions: This study used a cross-sectional method and demonstrated that TST improves SBA, TUG, gait speed, cadence, step length, and stride length in patients with chronic stroke.     

A dance program to improve gait and balance in individuals with chronic stroke: a feasibility study

Background and Objective Despite gains made with rehabilitation, gait and balance remain limited post-stroke. Dance is a fun and motivating activity which has shown benefits in individuals with Parkinson’s disease. The purpose of this article is to investigate the feasibility of a dance program for individuals with chronic stroke.

Methods Pre-post intervention feasibility study where twenty individuals with chronic stroke participated in a dance class twice a week for 10 weeks. Feasibility measures included interest, enrollment, attendance, adverse events, and participant satisfaction. Outcomes of interest were spatiotemporal gait parameters and balance assessed with the MiniBESTest before and after the dance program. Pre and post measures were compared with paired t-tests.

Results Of the 33 individuals approached, 30 (90.9%) were interested in participating; however, scheduling conflicts were a common barrier. Ultimately, 22 individuals consented and 20 individuals completed the dance program without adverse events. The mean age was 62.3 (10.4) years, time post-stroke was 6.4 (6.0) years and National Institutes of Health Stroke Scale score was 3.1 (2.0). Average attendance was 92.5% with 10 classes missed across 8 participants and satisfaction ratings were high (e.g. 17/20 strongly agreed they enjoyed the program). No significant differences in spatiotemporal gait parameters were found; however, MiniBESTest scores significantly increased from 16.5 (6.0) to 18.6 (4.9) (p = 0.0005).

Discussion and Conclusions A dance program is safe and feasible post-stroke. Attendance and satisfaction were high and participants perceived walking and balance benefits. Future work will include a randomized controlled trial.     

Mirror therapy and treadmill training for patients with chronic stroke: a pilot randomized controlled trial

Background: Previous lower-limb mirror therapy research has focused on non-weight bearing interventions.

Objectives: The primary aim of this study was to investigate the effect and feasibility of a combination of mirror therapy and treadmill training on post-stroke lower-limb recovery compared to a placebo intervention.

Methods: All patients (N = 30) walked on a treadmill for 30 min per day, 3 days per week, for 4 weeks. The mirror therapy and treadmill training group (n = 15) walked on the treadmill while viewing a reflection of their non-paretic limb in a mirror positioned in their mid-sagittal plane. The placebo group (n = 15) received no mirror visual feedback due to an altered mirror position. Primary outcome measures: Ten Metre Walk Test (10MWT) and Six Minute Walk Test (6MWT). Secondary outcome measures: Modified Ashworth Scale (MAS) and Fugl-Meyer Assessment-Lower Extremity (FMA-LE). Feasibility was appraised by examining participant compliance and any adverse events.

Results: No significant between group differences were demonstrated for the 10MWT, 6MWT or FMA-LE at post-training or 3-month follow-up assessment. A significant between group difference on the MAS was demonstrated in the reduction of ankle dorsiflexion muscle tone (p = 0.006) and ankle plantarflexion muscle tone (p = 0.01) in the mirror therapy group compared to the placebo group at post-training assessment but not at 3-month follow-up.

Conclusion: Our study reveals that in our group of patients with chronic stroke, mirror therapy combined with treadmill training facilitated significant reductions in ankle muscle tone (p < 0.05) compared to a placebo intervention.     

The effect of a whole-body vibration therapy on the sitting balance of subacute stroke patients: a randomized controlled trial

Background: The use of a whole-body vibration (WBV) therapy has recently been applied and investigated as a rehabilitation method for subacute stroke patients.

Objective: To evaluate the effects of a WBV therapy on recovery of balance in subacute stroke patients who were unable to gain sitting balance.

Methods: The conventional rehabilitation group (CG) received conventional physical therapy, including sitting balance training by a physical therapist, for 30 min a one session, for twice a day for five days a week for two weeks. The whole-body vibration group (VG) received one session of conventional physical therapy, and received WBV therapy instead of conventional physical therapy for 30 min a day for five days a week for two weeks.

Results: There were 15 patients in the CG and 15 patients in the VG who completed the two-week therapy. After the two-week therapy, both groups showed functional improvement. Patients in the VG improved functional ambulation categories, Berg balance scale, trunk impairment scale scores. But, no statistically significant correlations between the therapeutic methods and outcomes were observed in either group.

Conclusion: Our results suggest that WBV therapy led to improvement of the recovery in balance recovery for subacute stroke patients. Because the WBV therapy was as effective as conventional physical therapy, we can consider a WBV therapy as a clinical method to improve the sitting balance of subacute stoke patients.     

The effect of water-based exercises on balance in persons post-stroke: a randomized controlled trial

Objective: Water-based exercises have been used in the rehabilitation of people with stroke, but little is known about the impact of this treatment on balance. This study examined the effect of water-based exercises compared to land-based exercises on the balance of people with sub-acute stroke.

Methods: In this single-blind randomized controlled study, 32 patients with first-time stroke discharged from inpatient rehabilitation at West Park Healthcare Centre were recruited. Participants were randomized into W (water-based + land; n = 17) or L (land only; n = 15) exercise groups. Both groups attended therapy two times per week for six weeks. Initial and progression protocols for the water-based exercises (a combination of balance, stretching, and strengthening and endurance training) and land therapy (balance, strength, transfer, gait, and stair training) were devised. Outcomes included the Berg Balance Score, Community Balance and Mobility Score, Timed Up and Go Test, and 2 Minute Walk Test.

Results: Baseline characteristics of groups W and L were similar in age, side of stroke, time since stroke, and wait time between inpatient discharge and outpatient therapy on all four outcomes. Pooled change scores from all outcomes showed that significantly greater number of patients in the W-group showed improvement post-training compared to the L-group (p < 0.05). More patients in W-group showed change scores exceeding the published minimal detectable change scores.

Discussion: A combination of water- and land-based exercises has potential for improving balance. The results of this study extend the work showing benefit of water-based exercise in chronic and less-impaired stroke groups to patients with sub-acute stroke.     

The effects of Bobath-based trunk exercises on trunk control,functional capacity,balance, and gait: a pilot randomized controlled trial

Objective: The aim of this study was to investigate the effects of Bobath-based individually designed trunk exercises on trunk control, upper and lower extremity function, and walking and balance in stroke patients. The main aim of treatment was to eliminate individual trunk impairments during various patient functions.

Methods: The study was planned as an assessor-blinded, randomized controlled trial. A total of 22 patients volunteered to participate in the study. Trunk function, functional capacity, and gait were assessed with the Trunk Impairment Scale (TIS), stroke rehabilitation assessment of movement (STREAM), and a 10-m walking test, respectively. The Berg Balance Test (BBT), functional reach (FR), and timed up-and-go (TUG) tests were used to evaluate balance. After the initial assessment, the patients were divided randomly into two groups, the study group (12 patients) and the control group (10 patients). The mean age of the patients in the study group was 55.91?years (duration of stroke 58.66?months) and that of the control group was 54.00?years (duration of stroke 67.20?months). Individual training programs were determined for the patients in the study group, taking into consideration their evaluation results; and strengthening, stretching, range of motion, and mat exercises were determined for the control group according to their functional level. The participants in both groups were taken into the physiotherapy program for 12?weeks, 3?days a week for 1?hour a day.

Results: In group analyses, both groups showed improvement in STREAM, TIS, and TUG tests. Only the study group produced significant gains in the BBT, FR, and 10?m walking tests (P?<?0.05). According to the pre- and post-treatment results, no significant difference was observed in any of the evaluated parameters between the two groups (P>0.05).

Conclusion: Individually developed exercise programs in the Bobath concept improve trunk performance, balance, and walking ability in stroke patients more than do conventional exercises.     

Effects of curved-walking training on curved-walking performance and freezing of gait in individuals with Parkinson's disease: A randomized controlled trial

IntroductionThe purpose of this study was to investigate the effects of curved-walking training (CWT) on curved-walking performance and freezing of gait (FOG) in people with Parkinson's disease (PD).MethodsTwenty-four PD subjects were recruited and randomly assigned to the CWT group or control exercise (CE) group and received 12 sessions of either CWT with a turning-based treadmill or general exercise training for 30 min followed by 10 min of over-ground walking in each session for 4–6 weeks. The primary outcomes included curved-walking performance and FOG. All measurements were assessed at baseline, after training, and at 1-month follow-up.ResultsOur results showed significant improvements in curved-walking performance (speed, p = 0.007; cadence, p = 0.003; step length, p < 0.001) and FOG, measured by a FOG questionnaire (p = 0.004). The secondary outcomes including straight-walking performance (speed, cadence and step length, p < 0.001), timed up and go test (p = 0.014), functional gait assessment (p < 0.001), Unified Parkinson's disease Rating Scale III (p = 0.001), and quality of life (p < 0.001) were also improved in the experimental group. We further noted that the improvements were maintained for at least one month after training (p < 0.05).ConclusionA 12-session CWT program can improve curved-walking ability, FOG, and other measures of functional walking performance in individuals with PD. Most of the improvements were sustained for at least one month after training.     

Four-week training involving ankle mobilization with movement versus static muscle stretching in patients with chronic stroke: a randomized controlled trial

Background: Patients with stroke generally have diminished balance and gait. Mobilization with movement (MWM) can be used with manual force applied by a therapist to enhance talus gliding movement. Furthermore, the weight-bearing position during the lunge may enhance the stretch force.

Objectives: This study aimed to compare the effects of a 4-week program of MWM training with those of static muscle stretching (SMS). Ankle dorsiflexion passive range of motion (DF-PROM), static balance ability (SBA), the Berg balance scale (BBS), and gait parameters (gait speed and cadence) were measured in patients with chronic stroke.

Methods: Twenty patients with chronic stroke participated in this study. Participants were randomized to either the MWM (n = 10) or the SMS (n = 10) group. Patients in both groups underwent standard rehabilitation therapy for 30 min per session. In addition, MWM and SMS techniques were performed three times per week for 4 weeks. Ankle DF-PROM, SBA, BBS score, and gait parameters were measured after 4 weeks of training.

Results: After 4 weeks of training, the MWM group showed significant improvement in all outcome measures compared with baseline (p < 0.05). Furthermore, SBA, BBS, and cadence showed greater improvement in the MWM group compared to the SMS group (p < 0.05).

Conclusions: This study demonstrated that MWM training, combined with standard rehabilitation, improved ankle DF-PROM, SBA, BBS scores, and gait speed and cadence. Thus, MWM may be an effective treatment for patients with chronic stroke.     

The efficacy of treadmill training on balance dysfunction in individuals with chronic stroke: a systematic review

Background: Physical activity and exercise interventions are useful in facilitating the functional recovery of those with chronic stroke and, routinely, are gait-specific. While treadmill training has proven useful in gait performance recovery post-stroke, its efficacy on balance dysfunction has not been systematically reviewed.

Objectives: The purpose of this systematic review was to determine the effect of treadmill training (TT) interventions on balance dysfunction in individuals with chronic stroke.

Methods: A systematic literature search of PubMed, EMBASE, and CINAHL was performed. Eligible randomized controlled trials were published between 2007 and 2016. Selected trials investigated TT interventions in persons with chronic stroke and implemented at least one objective balance measure. Methodological quality was assessed using PEDro criteria.

Results: Eight studies met eligibility criteria and were included in the qualitative analysis. Studies differed in TT implementation and use of adjunctive treatments; however, all trials demonstrated improvements in balance measures that were as effective, if not more so, than conventional physical therapy treatments, including targeted balance training.

Conclusions: This review recognized moderate evidence in favor of TT interventions in balance and stroke rehabilitation programs. With TT, intensity may be a more critical factor than specificity and may offer additional carryover to recovery parameters of postural control and balance, beyond gait performance. It is recommended that clinicians utilizing TT incorporate objective measures of balance to assess the potential for skill transference and improvements in balance. Higher quality studies and additional research are needed to denote critical parameters by which improvements in balance may be optimized.     

Improvement of spontaneous language in stroke patients with chronic aphasia treated with music therapy: a randomized controlled trial

Aim of the study: The aim of this research is to evaluate the effects of active music therapy (MT) based on free-improvisation (relational approach) in addition to speech language therapy (SLT) compared with SLT alone (communicative-pragmatic approach: Promoting Aphasic's Communicative Effectiveness) in stroke patients with chronic aphasia. Materials and methods: The experimental group (n = 10) was randomized to 30 MT individual sessions over 15 weeks in addition to 30 SLT individual sessions while the control group (n = 10) was randomized to only 30 SLT sessions during the same period. Psychological and speech language assessment were made before (T0) and after (T1) the treatments. Results: The study shows a significant improvement in spontaneous speech in the experimental group (Aachener Aphasie subtest: p = 0.020; Cohen's d = 0.35); the 50% of the experimental group showed also an improvement in vitality scores of Short Form Health Survey (chi-square test = 4.114; p = 0.043). Conclusions: The current trial highlights the possibility that the combined use of MT and SLT can lead to a better result in the rehabilitation of patients with aphasia than SLT alone.     

The effects of Nintendo WiiTM-based balance and upper extremity training on activities of daily living and quality of life in patients with sub-acute stroke: a randomized controlled study

Objective: The aim of this study was to investigate the effects of Nintendo Wii^TM-based balance and upper extremity training on activities of daily living and quality of life in patients with subacute stroke. Methods: 42 adults with stroke (mean age (SD) = 58.04 (16.56) years and mean time since stroke (SD) = (55.2 ± 22.02 days (～8 weeks)) were included in the study. Participants were enrolled from the rehabilitation department of a medical center (a single inpatient rehabilitation facility). Participants were randomly assigned to Nintendo Wii group (n = 20) or Bobath neurodevelopmental treatment (NDT) (n = 22). The treatments were applied for 10 weeks (45–60 minutes/day, 3 days/week) for both of two groups. Nintendo Wii group used five games selected from the Wii sports and Wii Fit packages for upper limb and balance training, respectively. The patients in Bobath NDT group were applied a therapy program included upper extremity activites, strength, balance gait and functional training. The functional independence in daily life activities and health-related quality of life was assessed with Functional Independence Measure (FIM) and Nottingham Health Profile (NHP), respectively. Participant's treatment satisfaction was recorded by using Visual Analogue Scale. A second evaluation (FIM and NHP) occurred after 10 weeks at the end of rehabilitative treatment (post-training). Treatment satisfaction was measured after 10 sessions. Results: There were significant difference between FIM and NHP values in NDT and Nintendo Wii group (p < 0.05). However, a significant difference was not found between the groups with regard to FIM and NHP (p > 0.05). The patients in Nintendo Wii group were detected to be better satisfied from the therapy (p < 0.05). A significant difference was found between subparameters and total FIM score, all subparameters and total NHP score in both groups (p < 0.05). Conclusion: These findings suggested that the Nintendo Wii training was as effective as Bobath NDT on daily living functions and quality of life in subacute stroke patients.     

老年脑卒中患者慢性期康复效果调查：日本综合医院康复门诊与日间医院患者肢体功能比较

背景：有研究表明日间医院的康复服务与综合医院康复门诊比较,患者的功能和生活质量方面差异无显著性意义,但两者间有关脑卒中患者慢性期肢体功能的差异及其影响因素却少有报道。 目的：比较日本老年脑卒中患者慢性期分别在综合医院康复门诊和日间医院康复期间的肢体功能差异,分析影响功能差异的相关因素,以便改进老年脑卒中患者康复方案。 方法：分别对医院门诊和日间医院进行康复训练的老年脑卒中患者119例(年龄60~75岁)实施为期1年的调查分析,比较两组入选时和1年后的肢体功能指标的差异,包括健侧和偏瘫侧的股四头肌肌力、患侧膝关节伸展和踝关节背屈的关节活动度和10 m步行时间。采用逐步回归分析确定影响肢体功能指标变化的显著因素。 结果与结论：医院门诊组患者肢体健侧和偏瘫侧股四头肌肌力在入选时和1年后均大于日间医院组(P < 0.05),而两组的10 m步行时间差异均无显著性意义。医院门诊组在入选时患者患侧膝关节伸展和踝关节背屈关节活动度均小于日间医院组(P < 0.05),而1年后两组以上指标比较差异无显著性意义。逐步回归分析结果显示入选时健侧和偏瘫侧股四头肌肌力、患侧膝关节伸展和踝关节背屈关节活动度是其各自功能指标变化的显著影响因素,而偏瘫侧膝关节伸展、踝关节背屈的关节活动度越受限的患者,训练的效果越好。因此,日间医院组需要采取针对性的肌力增强或维持训练和膝关节活动度训练。     

A shared decision-making communication training program for physicians treating fibromyalgia patients: effects of a randomized controlled trial

OBJECTIVE: Fibromyalgia syndrome (FMS) is a condition of chronic widespread pain that is difficult to control and is associated with strains in physician-patient interaction. Shared decision making (SDM) can be a potential solution to improve interaction. We evaluated the effects of an SDM intervention, including an SDM communication training program for physicians, in a randomized controlled trial with FMS patients. The main objective was to assess whether SDM improves the quality of physician-patient interaction from patients' perspective. METHODS: Patients were randomized to either an SDM group or an information-only group. The SDM group was treated by physicians trained in SDM communication and had access to a computer-based information package; the information-only group received only the information package and was treated by standard physicians. All patients were offered the same evidence-based treatment options for FMS. Patients were assessed with questionnaires on physician-patient interaction (main outcome criteria) and decisional processes. Physicians filled out a questionnaire on interaction difficulties. Assessment took place immediately after the initial consultation. RESULTS: Data from 85 FMS patients (44 in the SDM group and 41 in the information-only group) were analyzed. The mean age was 49.9 years (S.D.=10.2), and 91.8% of patients were female. The quality of physician-patient interaction was significantly higher in the SDM group than in the information-only group (P<.001). We found no differences in secondary outcome measures. CONCLUSIONS: SDM with FMS patients might be a possible means to achieve a positive quality of physician-patient interaction. A specific SDM communication training program teaches physicians to perform SDM and reduces frustration in patients.     

Feasibility and effects of home-based smartphone-delivered automated feedback training for gait in people with Parkinson's disease: A pilot randomized controlled trial

BackgroundInertial measurement units combined with a smartphone application (CuPiD-system) were developed to provide people with Parkinson's disease (PD) real-time feedback on gait performance. This study investigated the CuPiD-system's feasibility and effectiveness compared with conventional gait training when applied in the home environment.MethodsForty persons with PD undertook gait training for 30 min, three times per week for six weeks. Participants were randomly assigned to i) CuPiD, in which a smartphone application offered positive and corrective feedback on gait, or ii) an active control, in which personalized gait advice was provided. Gait, balance, endurance and quality of life were assessed before and after training and at four weeks follow-up using standardized tests.ResultsBoth groups improved significantly on the primary outcomes (single and dual task gait speed) at post-test and follow-up. The CuPiD group improved significantly more on balance (MiniBESTest) at post-test (from 24.8 to 26.1, SD∼5) and maintained quality of life (SF-36 physical health) at follow-up whereas the control group deteriorated (from 50.4 to 48.3, SD∼16). No other statistically significant differences were found between the two groups. The CuPiD system was well-tolerated and participants found the tool user-friendly.ConclusionCuPiD was feasible, well-accepted and seemed to be an effective approach to promote gait training, as participants improved equally to controls. This benefit may be ascribed to the real-time feedback, stimulating corrective actions and promoting self-efficacy to achieve optimal performance. Further optimization of the system and adequately-powered studies are warranted to corroborate these findings and determine cost-effectiveness.     

Effects of trunk rehabilitation with kinesio and placebo taping on static and dynamic sitting postural control in individuals with chronic stroke: A randomized controlled trial

ABSTRACT

Background: Impaired trunk postural control is common after stroke. Combining kinesio taping with trunk rehabilitation has been shown to enhance the recovery of postural control ability in patients with stroke.

Objective: We investigated whether the combination of kinesio taping with trunk rehabilitation would improve dynamic and static sitting stability after stroke.

Methods: Twenty-eight patients with stroke were recruited and randomly assigned to one of the two 8-week trunk rehabilitation programs with kinesio (experimental group) or placebo taping (control group). Outcome measures were dynamic forward, dynamic backward, affected-side, and unaffected-side sway areas, static sway area and length, and the total limit of stability (LOS) area. The variables were measured using the BioRescue analysis system. All outcome measures were assessed at baseline and after 8 weeks of trunk rehabilitation.

Results: Significant increases were observed in the dynamic forward, dynamic backward, affected-side, and unaffected-side sway areas, and the total LOS area, in the experimental and control groups, whereas decreases were observed in the static sway area and length. The dynamic forward sway area was significantly higher in the experimental group than in the control group, but there were no significant differences between the groups in the other variables.

Conclusions: Trunk rehabilitation is effective for improving dynamic and static sitting stability after stroke. The addition of kinesio taping to the back muscles further increases forward mobility.     

Effects of constraint-induced movement therapy for lower limbs on measurements of functional mobility and postural balance in subjects with stroke: a randomized controlled trial*

Background: Constraint-induced movement therapy (CIMT) is suggested to reduce functional asymmetry between the upper limbs after stroke. However, there are few studies about CIMT for lower limbs.

Objective: To examine the effects of CIMT for lower limbs on functional mobility and postural balance in subjects with stroke.

Methods: A 40-day follow-up, single-blind randomized controlled trial was performed with 38 subacute stroke patients (mean of 4.5 months post-stroke). Participants were randomized into: treadmill training with load to restraint the non-paretic ankle (experimental group) or treadmill training without load (control group). Both groups performing daily training for two consecutive weeks (nine sessions) and performed home-based exercises during this period. As outcome measures, postural balance (Berg Balance Scale – BBS) and functional mobility (Timed Up and Go test – TUG and kinematic parameters of turning – Qualisys System of movement analysis) were obtained at baseline, mid-training, post-training and follow-up.

Results: Repeated-measures ANOVA showed improvements after training in postural balance (BBS: F = 39.39, P < .001) and functional mobility, showed by TUG (F = 18.33, P < .001) and by kinematic turning parameters (turn speed: F = 35.13, P < .001; stride length: F = 29.71, P < .001; stride time: F = 13.42, P < .001). All these improvements were observed in both groups and maintained in follow-up.

Conclusions: These results suggest that two weeks of treadmill gait training associated to home-based exercises can be effective to improve postural balance and functional mobility in subacute stroke patients. However, the load addition was not a differential factor in intervention.     

Effect of cilnidipine vs losartan on cerebral blood flow in hypertensive patients with a history of ischemic stroke: a randomized controlled trial

Objectives –  The aim of this study was to compare the effects of antihypertensive agents on cerebral blood flow (CBF) in hypertensive patients with previous ischemic stroke.
Materials and methods –  In this double-blind, multi-center, non-inferiority trial, 196 patients were randomized to cilnidipine 10–20 mg or losartan 50–100 mg once daily for 4 weeks. Baseline and follow-up CBF as measured by single photon emission computed tomography were obtained in 167. The primary endpoint was the global CBF change. The secondary endpoints were the CBF change in the hemisphere ipsilateral to the index stroke, non-impairment of global CBF and blood pressure (BP) reduction.
Results –  Global CBF increased significantly in the cilnidipine arm (9.0 ± 29.6%, P  = 0.0071) and the losartan arm (11.4 ± 31.4%, P  = 0.0012), and these changes were not different between the two groups ( P  = 0.607). However, the estimated difference in percentage global CBF change between the two groups was −2.43% (97.5% CI, −13.06% to 8.21%), which crossed the predetermined non-inferiority margin of −8.6%. Ipsilesional hemispheric CBF change, non-impairment of global CBF and BP reduction were similar in the two groups.
Conclusions –  This trial failed to prove the non-inferiority of cilnidipine to losartan regarding global CBF change. Both the treatments, however, increase the global CBF despite BP lowering.