肌肉硬度检测仪评估健康男性小腿三头肌肌肉硬度及其信度研究

摘要 目的：检验肌肉硬度检测仪量化评估不同状态下（俯卧位、等长收缩、站立位）健康男性小腿三头肌肌肉硬度的信度,并分析小腿三头肌肌肉硬度的差异性、肌肉硬度与踝关节主被动力矩的相关性。 方法：健康男性受试者30例,应用肌肉硬度检测仪评估俯卧位、40%、80%最大自主等长收缩及站立位时右侧腓肠肌内侧头（medial head of the gastrocnemius, MG）、腓肠肌外侧头（lateral head of the gastrocnemius, LG）和比目鱼肌（soleus, Sol）的肌肉硬度。分别由评估者A和评估者B进行测量,其中评估者A在5天后重复测量一次。 结果：不同状态下,评估者间信度和重测信度均为良好至优秀（0.86—0.98, 0.75—0.98）。站立位时MG、LG及Sol的肌肉硬度高于其俯卧位（P＜0.001）,且均表现为Sol＞LG＞MG;肌肉硬度随着收缩强度的增长而增长（P＜0.001）,但两者增长比例不相对应;被动和主动肌肉硬度均与踝关节主被动力矩不相关（P＞0.05）。 结论：肌肉硬度检测仪评估健康男性MG、LG及Sol肌肉硬度的信度较高,能用于小腿三头肌肌肉硬度的评估,有助于明确MG、LG及Sol在不同状态下的生理硬度特性。     

腓肠肌内外侧硬度与跟腱硬度的相关性研究

摘要目的：使用新型软组织弹性触诊仪（MyotonPRO）对健康受试者的跟腱硬度进行信度研究,探究腓肠肌内侧、外侧硬度与跟腱硬度相关性。方法：招募40例健康受试者,测试者A、B使用MyotonPRO对受试者跟腱硬度进行测量,测量点为根骨结节上方2cm（AT-2）和4cm（AT-4）,测试者A单独对腓肠肌硬度进行测量。分别计算了测试者之间及同一测试者前后测试指标的组内相关系数（ICC）、最小检测变化值（MDC）及肌肉硬度与肌腱硬度之间的相关系数。结果：测试者之间以及同一测试者前后所测指标信度良好（ICC=0.86—0.93）。踝关节中立位时,腓肠肌内、外侧与AT-4硬度的相关性分别为0.60和0.49（P＜0.05）,腓肠肌内侧与AT-2硬度的相关性为0.36（P＜0.05）,腓肠肌外侧与AT-4硬度无相关性（P＞0.05）。踝关节背屈10°位时,仅腓肠肌外侧与跟腱AT-4硬度存在相关性,相关系数为0.34（P＜0.05）。结论：MyotonPRO测量跟腱硬度的可信度较高,腓肠肌内、外侧肌肉硬度与跟腱硬度的相关性具有一定差异,并且受踝关节角度变化的影响。     

MyotonPRO用于评估健康青年人股四头肌肌肉弹性的信度研究

目的:检验MyotonPRO肌肉弹性测试仪测量健康青年人股直肌、股内侧肌及股外侧肌肌肉弹性的复测信度和测试者间信度.方法:本研究纳入了38例健康青年人,采用MyotonPRO评估放松状态下的股直肌、股内侧肌及股外侧肌肌肉弹性,计算组内相关系数(ICC)、绝对信度,两次测量结果绘制成Bland-Altman图并进行系统偏...     

肌肉状态检测系统评估脑卒中患者肌肉张力的信度研究

目的：测试肌肉状态检测系统评估在脑卒中患者肌肉张力的信度。方法：恢复期脑卒中的患者20例,由2位治疗师分别使用Myoton-3肌肉状态检测系统进行肌肉张力测试,其中1个治疗师在3d后重复测试1次。计算组内相关系数(ICC)。结果：同一测试者应用Myoton-3肌肉状态检测系统测量肱二头肌弹性的重复性测量信度为优秀（ICC>0.90);2个测试者之间的测量信度为好（0.75相似文献   

踝关节被动牵拉角度和腓肠肌内外侧头肌肉硬度的关系

正被动肌肉牵拉通常被广泛应用于训练或比赛前后,预防损伤、缓解疼痛和提高运动表现,此外,其亦被应用于康复治疗中,以降低肌肉硬度和恢复关节活动度~([1—2])。腓肠肌包括腓肠肌内侧头(medial head of the gastrocnemius,MG)和腓肠肌外侧头(lateral head of the gastrocnemius,LG),作用是屈曲踝关节和膝关节,能够为人类行走、跑步和跳跃提供重     

国产电脑型人体平衡检测仪信度和效度的研究

本文通过对不同年龄段正常人男女各５名，进行反复多次检测（每周一次，共五次）及不同检查者对不同正常者分别检测其静立平衡，通过方差分析，统计学处理，来检验国产“ＤＪ”电脑型人体平衡检测仪的信度和效度。通过对双足站立位置的不同，进一步说明仪器的可靠性和敏感性，并提示并足位更优于分足位检查。该仪器新增的指标，动摇角度（ｄｅｇ）、能耗（ｅｎｇ）也能反映人体的平衡功能。     

国产电脑型人体平衡检测仪信度和效度的研究

本通过对不同年龄段正常人男女各5名。进行反复多次检测(每周一次，共五次)及不同检查对不同正常分别检测其静立平衡，通过方差分析，统计学处理。来检验国产“DJ”电脑型人体平衡检测仪的信度和效度。通过对双足站立位置的不同，进一步说明仪器的可靠性和敏感性，并提示并足位更优于分足位检查。该仪器新增的指标，动摇角度(deg)、能耗（eng)也能反映人体的平衡功能。     

帕金森病和脑血管病恢复期患者肌肉硬度的定量测定方法

目的：探讨一种新的肌肉硬度的定量测定方法。方法：用自行研制的肌肉硬度计,在不同预加负荷下,对正常人群组、脑血管病（ＣＶＤ）恢复期患者和帕金森病（ＰＤ）患者组的肌肉硬度分别进行了测量。结果：预加负荷是１０ｋＰａ时,ＣＶＤ组和ＰＤ组的肌肉硬度均显著高于正常对照组（Ｐ＜００５）;预加负荷是５０ｋＰａ时,ＣＶＤ组的肌肉硬度明显高于ＰＤ组（Ｐ＜０．０５）。结论：预加负荷是１０ｋＰａ时的肌肉硬度,反映了肌肉组织的静态张力;预加负荷是５０ｋＰａ时的肌肉硬度,对于鉴别ＣＶＤ和ＰＤ不同特征的肌张力增高很有价值     

康复超声成像技术测量健康青年腹部肌肉厚度及其信度研究

摘要 目标：测试康复超声成像技术测量健康青年腹部肌肉厚度及其信度。 方法：健康青年30例,使用康复超声成像技术测量腹部腹外斜肌、腹内斜肌和腹横肌在放松仰卧位的厚度。由初学测试者A和有经验测试者B分别进行测量,其中初学测试者A在3d后重复测试一次。计算组内相关系数（ICC）和最小检测变化值（MDC）。 结果：初学测试者A的重复性测量信度均为优秀（ICC＞0.90）;最小检测变化值在0.03—0.09cm之间,显示测量误差较小;不同施测者间信度分析均为好（0.75＜ICC＜0.90）;左右两侧腹外斜肌、腹内斜肌与腹横肌肌肉厚度皆无显著差异（P＞0.05）。 结论：康复超声技术可以准确、有效测量腹外斜肌、腹内斜肌和腹横肌的厚度,健康青年左右两侧的肌群厚度对称。     

Variation and reliability of ultrasonographic quantification of the architecture of the medial gastrocnemius muscle in young children

The aim of this study was to evaluate the suitability of ultrasonography for the quantification of gastrocnemius muscle architecture in healthy young children. The variation and reliability of measurement of muscle thickness, pennation angle and fibre length of the medial gastrocnemius were determined, using stationary and portable ultrasound machines, in 13 boys and eight girls aged 4–10. Ultrasound images were obtained from each leg, in duplicate, with the ankle at 90°, then at maximal plantar flexion, with the two machines within the same session. The same set of 16 scans was repeated in four children 4–6 weeks later. The mean muscle thickness, pennation angle and fibre length differed between ankle positions and between legs. Measurements obtained using the two machines established similar values with no significant differences in absolute values and coefficients of variation (CV). For duplicate images taken during the same session for the same leg, ankle position and machine, the CV and intraclass correlation coefficients (ICC) ranged, respectively, from 2·1% to 3·1% and 0·94–0·98 for muscle thickness, from 4·1% to 6·0% and 0·85–0·96 for pennation angle and from 4·5% to 6·3% and 0·87–0·96 for fibre length. Corresponding values for variables for the same child measured on two separate occasions were within the same ranges, all being similar to reliability data reported previously for adult muscle. Muscle thickness, pennation angle and fibre length of the medial gastrocnemius can therefore be quantified reliably, using either a stationary or portable ultrasound machine, in healthy young children.     

Inter-examiner reliability in identifying lumbar paraspinal muscle atrophy by lumbar paraspinal muscle atrophy index,a novel parameter

[Purpose] To evaluate the inter-examiner reliability of our novel parameter, the lumbar paraspinal muscle atrophy index, in identifying the lumbar paravertebral muscle atrophy. [Participants and Methods] The study group consisted of 225 adults, with a mean age of 64.7 (range, 21–89) years, who underwent posterior lumbar spinal surgery for degenerative spinal disease at our hospital between July 2013 and June 2017. Preoperative axial T2-weighted magnetic resonance images were used to evaluate the lumbar paraspinal muscle atrophy index and observe the presence or absence of severe lumbar paraspinal muscle atrophy. The lumbar paraspinal muscle atrophy index was calculated at each intervertebral level, from L1-2 through L4-5, once by two examiners, and the Cohen’s kappa statistic was used to calculate the inter-examiner agreement of the classification of the presence or absence of atrophy at each level. [Results] The agreement was high (kappa, 0.79–0.88) for the lumbar paraspinal muscle atrophy index at all levels, except at the L3-4 level (kappa, 0.49). The lower kappa statistic at L3-4 likely reflects the unique morphological characteristics at this level. [Conclusion] The lumbar paraspinal muscle atrophy index is a new, simple, easy-to-use, and sufficiently reliable parameter to identify lumbar paraspinal atrophy.     

Reliability of ultrasonographic measurement of the architecture of the vastus lateralis and gastrocnemius medialis muscles in older adults

Objective: To determine the test‐retest reliability of measurements of thickness, fascicle length (L_f) and pennation angle (θ) of the vastus lateralis (VL) and gastrocnemius medialis (GM) muscles in older adults. Participants: Twenty‐one healthy older adults (11 men and ten women; average age 68·1 ± 5·2 years) participated in this study. Methods: Ultrasound images (probe frequency 10 MHz) of the VL at two sites (VL site 1 and 2) were obtained with participants seated with knee at 90º flexion. For GM measures, participants lay prone with ankle fixed at 15º dorsiflexion. Measures were taken on two separate occasions, 7 days apart (T1 and T2). Results: The ICCs (95% CI) were: VL site 1 thickness = 0·96(0·90–0·98); VL site 2 thickness = 0·96(0·90–0·98), VL θ = 0·87(0·68–0·95), VL L_f = 0·80(0·50–0·92), GM thickness = 0·97(0·92–0·99), GM θ = 0·85(0·62–0·94) and GM L_f =0·90(0·75–0·96). The 95% ratio limits of agreement (LOAs) for all measures, calculated by multiplying the standard deviation of the ratio of the results between T1 and T2 by 1·96, ranged from 10·59 to 38·01%. Conclusion: The ability of these tests to determine a real change in VL and GM muscle architecture is good on a group level but problematic on an individual level as the relatively large 95% ratio LOAs in the current study may encompass the changes in architecture observed in other training studies. Therefore, the current findings suggest that B‐mode ultrasonography can be used with confidence by researchers when investigating changes in muscle architecture in groups of older adults, but its use is limited in showing changes in individuals over time.     

Overweightness,obesity and arterial stiffness in healthy subjects: a systematic review and meta-analysis of literature studies

Objective: The relationship between overweightness, obesity and arterial stiffness remains unclear. We performed a meta-analysis evaluating the impact of obesity/overweightness on arterial stiffness in healthy subjects.

Methods: Literature searches were conducted using databases (eg, MEDLINE, EMBASE) and citations cross-referenced. Studies evaluating the relationship between obesity/overweightness and cfPWV, baPWV, and AIx were systematically searched. A total of 10 studies (1,124 obese/overweight subjects, 1,884 controls) were included.

Results: Compared to controls, obese/overweight subjects showed a significantly higher cfPWV (SMD 0.50 m/s; 95%CI 0.15, 0.86; P = 0.005), baPWV (SMD 0.41 m/s; 95% CI 0.08, 0.74; P = 0.014), and AIx (SMD 1.02;95%CI 0.16, 1.87; P < 0.0001). When analyzing ‘high quality’ studies, the difference in arterial stiffness among obese/overweight subjects and controls remain (SMD 0.73 m/s; 95%CI 0.16, 1.30; P = 0.013).

Conclusion: Arterial stiffness, a recognized marker of cardio vascular risk, is increased in obese/overweight subjects without overt cardiovascular diseases.     

健康人矢状面照片拍摄法评定头颈姿势的信度研究

目的:探索矢状面照片拍摄法评定头颈姿势的评估者间信度和评估者内部信度.方法:选取27例健康受试者,在左侧耳屏、肩峰及C7棘突处作红色标记,从受试者左侧拍摄其坐位矢状面照片,包括头颈和上胸段.选取头颈角,即耳屏和C7棘突连线和水平线所形成的夹角作为评定头颈姿势的参数.评估方法包括目测观察法和量角尺测量法.两位评估者独立评...