摘要
目的研究骶骨定标法能否有效检测脑卒中偏瘫患者在静态站立及步行时的平衡功能。方法共选取21例脑卒中偏瘫患者,分别采用骶骨定标法、身体节段法检测骶骨标记点和身体重心的平均摆动幅度(MSA)及平均摆动速度(MSV)。以身体节段法作为检测身体重心的金标准,采用Bland—Altman(BA)图示法评估骶骨定标法检测脑卒中偏瘫患者平衡功能的信度与效度。结果信度分析结果显示,入选患者站立位时x轴MSA95%一致性区间为-4.42~5.14mm,Y轴为-6.04~4.52mm,Z轴为-1.75~1.31mm;站立位时x轴MSV95%一致性区间为-0.08~0.09mm/s,Y轴为-0.10~0.08mm/s,Z轴为-0.03~0.02mm/s;步行状态时x轴MSA95%一致性区间为-185.74~105.53nlnl,Y轴为-22.57~2.76mm,Z轴为2.76—4.43mm;步行状态时x轴MSV95%一致性区间为-3.10~1.76mm/s,Y轴为-0.38~0.54mm/s,Z轴为-0.07~0.02mm/s。效度分析结果显示,站立位时X轴MSA95%一致性区间为-3.62~2.55mm,Y轴为-3.95—3.94mm,Z轴为-7.35~19.43mm;站立位时x轴MSV95%一致性区间为-0.06~0.04mm/s,Y轴为-0.07~0.07mm/s,Z轴为一O.12~0.32mm/s;步行状态时x轴MSA95%一致性区间为-4.40~4.74mm,Y轴为-17.35~4.14min,Z轴为一7.48~10.58]film;步行状态时X轴MSV95%一致性区间为-0.07~0.08mm/s,Y轴为-0.29~0.07mm/s,Z轴为-0.12~0.18mm/s。上述结果表明各项信、效度检验指标其95%一致性区间均很小,均在临床允许范围内。结论骶骨定标法可有效用于检测不同状态下脑卒中偏瘫患者平衡功能,该方法值得临床推广、应用。
Objective To study the reliability and validity of using sacral markers in evaluating the balance function in standing and walking of stroke patients with hemiplegia. Methods Twenty-one hemiplegic stroke patients were recruited and their baseline mean sway amplitude (MSA) and mean sway velocity (MSV) were measured using sacral markers and center of gravity analysis assuming a segmented body, the "gold standard" for such analysis. The data were analyzed using Bland-Ahman plots to obtain the 95% limits of agreement (LOA). Results ① Test-retest reliability: The 95% LOA of the MSA in standing was ( -4.42, 5.14) on the X axis, ( -6.04, 4.52) on the Y axis, and ( -1.75, 1.31) on the Z axis. The MSV in standing was ( -0.08, 0.09) on the X axis, ( -0.10, 0.08) on the Y axis and ( -0.03, 0.02) on the Z axis. The 95% LOA of the MSA in walking was ( -185.74, 105.53) on theX axis, ( -22.57, 2.76) on the Y axis and (4.43, 2.76) on the Z axis. The MSV in walking was ( -3.10, 1.76) on the X axis, ( -0.38, 0.54) on the Y axis and ( -0.07, 0.02) on the Z axis. ②Validity: The 95% LOA of the MSA in standing was ( -3.62, 2.55) on theX axis, ( -3.95, 3.94) on theY axis and ( -7.35, 19.43) on theZaxis. For the MSV in standing it was (-0.06,0.04) on theXaxis, ( -0.07, 0.07) on the Y axis and ( -0. 12, 0.32) on the Z axis. The 95% LOA of the MSA in walking was ( -4.40, 4.74) on the Xaxis, (-17.35,4.14) on the Y axis and (-17.35,4.14) on theZaxis. For the MSV in walking it was ( -0.07, 0.08) on the X axis, ( -0.29, 0.07) on the Y axis and ( -0.12, 0.18) on the Z axis. The 95% LOAs of the variables representing their reliability and validity are small enough to be acceptable in clinical ap- plication. Conclusions The sacral marker method can be used in assessing the balance of stroke patients.
出处
《中华物理医学与康复杂志》
CAS
CSCD
北大核心
2013年第4期273-277,共5页
Chinese Journal of Physical Medicine and Rehabilitation
基金
江苏省科教兴卫工程重点学科省内开放课题(KF200922)
关键词
骶骨定标法
身体节段法
重心
平衡
脑卒中
信度
效度
Sacral marker method
Segmental representation
Center of gravity
Balance
Stroke
Reliability
Validity