立位

以立位胫股角（femorotibialangle，FTA）作为本研究中下肢力线的参数。

As a parameter of limb alignment , the standing FTA was employed in this study .

目的利用平衡测试仪（BPM）对健康儿童静态立位平衡功能进行测定，从而得出儿童静态立位平衡的参考值。

Objective To measure and develop normal parameters of static standing equilibrium in normal children by balance of performance monitor ( BPM ) .

血管迷走性晕厥儿童卧位、立位QT间期离散度及P波离散度的变化

Variation of QT Interval Dispersion and P Wave Dispersion in Supine and Erect Position in Children with Vasovagal Syncope

结果B组和C组由卧位转为立位时血压下降均较A组明显。

Results When the lying posture is changed into sitting posture , the blood pressure of Group B and Group C decreases more obviously than Group A.

结果：不论卧、坐或立位血压（收缩压和舒张压）均有显著的下降（P＜0.01），其中21例血压降至正常范围；

RESULTS : The systolic and diastolic blood pressures decreased obviously ( P0.01 ) in lying , sitting or standing position , and were reduced to normal range in 21 patients .

卧床期间受试者左侧大脑Ⅰ相面积、左侧主峰高度、左侧大脑血液流入速度均和立位耐力时间呈显著正相关（P＜0.01或P＜0.05）。

Left cerebral ⅰ quadrant area , left cerebral Δ y wave crest height and left cerebral inrush velocity were positively correlated with orthostatic tolerance ( P < 0.01 or 0.05 ) .

结果表明，只进行体育训练的B组的立位耐力没有明显的变化（P＞0.05），而反复体位变换训练的A组的立位耐力，有明显的提高（P＜0.05）。

The results indicated that the orthostatic tolerance was not changed in group B ( P > 0.05 ), while the orthostatic tolerance was enhanced significantly in group A ( P < 0.05 ) .

有GERD症状或食管炎的卧位有效蠕动百分比明显低于立位（P0.05）。

Percentage of effective peristalsis during supine was lower than upright position in patients with GERD symptom or reflux esophagitis .

立位应激或不同重力应激下心血管系统（CVS）的反应，是CVS调节功能的重要表现。

The cardiovascular system ( CVS ) response to orthostatic or gravitational stresses shows the function of cardiovascular regulation .

头向上倾斜90°（+90°HUT）120min模拟立位应激时的生理效应。

+ 90 ? head-up tilting simulated physiological effects of orthostatic stress .

老年性膝关节OA病人内侧间隙宽度明显小于外侧（P<0001），卧位间隙宽度明显大于立位（P<001）。

The width of the cartilage space of the knee of the old patient with osteoarthritis was wider in the lateral and at standing position obviously .

立位耐力试验（OTT）是一项实用技术。

Orthostatic tolerance test ( OTT ) is a practical technique .

经雷尼替丁抗返流治疗后，各项返流指标除了立位pH＜4时间百分比外，均显著下降（P＜0.01或＜0.05），近期随访结果显示，哮喘得到有效控制。

All parameters except for the percentage of time of pH4 at standing position decreased significantly and the symptoms were controlled obviously after antireflux treatment with oral ranitidine for asthmatic children with pathological GER ( P0.01 or 0.05 ) .

DDR立位胸片窗宽、窗位与密度值的观察

The Relationship Study between Window Level , Window Width and Density Value in Chest Film of Digital Radiography

心电图可疑和异常发生率、蹲位后转立位心率增量和收缩压均高于对照组（P＜0.01或P＜0.05），舒张压有增加趋势。

The average systolic blood pressure of the exposed group is higher than the control group ( P < 0.01 ) . The increments of heart rate from squatting to standing is more than the control group ( P < 0.01 ) .

组者立位时原异常ST-T变化的程度与范围加重（100%）；

The degree and range of the changes of ECG ST-T in Group ⅳ were increased ( 100 % ) .

结论：PSS组立位、卧位排空时间与健康组相比差异有显著性意义。

Conclusion : The emptying times of esophageal barium meal in patients with PSS were significantly different to those of the normal group in our study .

VVS患儿在卧位、立位时QTd及Pd不存在男女性别差异（Pa0·05）。

There were no differences in QTd and Pd in supine and erect position in different gender with VVS children ( Pa0.05 ) .

探讨胃食管反流病（GERD）患者中卧、立位的酸反流模式与食管黏膜损伤严重度的关系。

To investigate the correlation of esophageal acid reflux patterns of different positions with endoscopic severity of gastroesophageal reflux disease ( GERD ) .

随着膝关节屈曲角度的逐渐增大，相应的立位FTA逐渐减小。膝关节屈曲位和伸直位时的立位FTA的差值（△FTA）与膝关节的屈曲角度之间存在着正相关关系。

Positive correlation was found between the difference of the standing FTA in full extension and in flexion (Δ FTA ) and the flexion angle of the knee .

结果卧床第10天和卧床结束时，受试者立位耐力比卧床前显著降低（P0.05）。

Result During HUT + 75 ° 20 min orthostatic tolerance test on day 10 and 21 of HDT , the average standing time were shorter than that of the pre HDT values ( P0.05 ) .

组心电图ST-T正常及组原有ST-T改变者分别在卧、立位对比时无明显变化；

The ECG ST-T of Group ⅰ was normal and Group ⅲ was no obvious changes when changing supine position into standing position .

下体负压-立位作用下ST-T改变与心肌氧耗的关系

Relationship between Changes of ST Segment and T Wave of ECG and Myocardial Oxygen Consumption during Head-up Tilt Plus Lower Body Negative Pressure

在术后pH监测总时间、立位时间、卧位时间上三组之间差别无统计学意义（p0.05），排除了以上三因素对检查结果的影响。

There were also no statistically significant differences among the three groups with total time 、 upright time and supine time of pH monitoring after surgery ( p0.05 ), excluding the three above factors on the impact of test results .

方法分析400份DDR立位后前位胸片窗宽、窗位与密度值的变化。

Methods 400 DR post-anterior chest films were observed . Change of window level , window width and density value of these films were analysed .

目的探讨立位心电图ST-T变化在器质性心脏病伴β-受体过敏综合征诊断中的意义。

Objective To study the value of ECG ST-T changes in standing position 's diagnosis to organic heart di - seases with beta receptor anaphylaxis syndrome .

训练后站立中A组心血管系统的调节能力优于B组，很可能是由於反复的体位变换提高了心血管系统的反射性调节能力，从而提高了人体的立位耐力。

During standing in head-up position after training , regulating ability of cardiovascular system in group A was better than that in group B. It is possible that training of body position change enhanced reflex regulating ability of the cardiovascular system and thus improved the adaptability to orthostasis .

结果立位F-V曲线阳性率67.5%。

Results The positive rate was 67.5 % in the upright , and was 91.9 % on back position .

目的探讨血管迷走性晕厥（VVS）儿童卧、立位QT间期离散度（QTd）及P波离散度（Pd）的变化。方法直立倾斜试验（HUTT）阳性的VVS患儿46例为研究组。

Objective To probe the variation of QT interval dispersion ( QTd ) and P-wave dispersion ( Pd ) in supine and erect position for children with vasovagal syncope ( VVS ) .

结论认识DDR立位后前位胸片窗宽、窗位与密度值的关系，对提高其质量有很大价值。

Conclusion It is important to recognize the relationship between window level , window width and density value in DR post-anterior chest films in order to improve its quality .