老年人握力重测的信度研究

目的研究老年人握力重测的信度,为临床用于评估老年人手部力量的方式、方法提供实验依据。方法采用方便性抽样法选取60名年龄大于65岁的健康老年人,平均年龄为(75.18±6.58)岁。使用JAMAR 30107041型握力器,受试者左、右两手均分别测试握力2次,2次测试间隔时间为7d;以等级相关系数(interclass correlation coefficient,ICC)作为重测信度指标并行统计学分析。结果老年人左手与右手两侧握力重测结果均高度相关,且重复测试信度较高(ICC分别为0.932 6、0.930 8,95%CI分别为0.834 0～0.972 0、0.838 0～0.972 8)。结论健康增龄老年人握力重测信度较高,JAMAR30107041型握力器可作为老年人手部力量评定的简便、快捷、可靠的一种测量工具。     

BTE Primus多功能康复系统握力器信度和效度研究

目的测试BTE Primus多功能康复系统握力器的重测信度和效标效度。方法受试者为30名成年健康男性,平均年龄(22.23±1.59)岁。测试受试者两次使用BTE握力器和Jamar握力器的力量,两次测试间隔时间为7d。以等级相关系数(ICC)作为重测信度指标;相关性系数r作为效标效度指标。结果BTE Primus握力器的测试结果与Jamar握力器的结果高度相关(r=0.842,P<0.01),且重复测试信度较高(ICC=0.957,95%CI=0.908~0.980)。结论BTE握力器可在临床手功能评定中使用。     

新型手部肌力评估系统的信度和效度研究

目的测试新型手部肌力评估系统E-LINK的信度和效度。方法25 名成年人两次使用E-LINK手功能测试系统和Jamar握力器进行力量测试,测试间隔时间5 d,由两位治疗师分别进行测试。计算手功能测试系统测量的握力、侧捏力、对指力量的组内相关系数(ICC),两种仪器测量的数据进行Pearson 相关性分析。结果E-LINK系统的测试结果与Jamar 握力器的结果高度相关(r=0.76~0.99, P<0.01)。重复测试信度较高(ICC>0.80),测试者间信度满意(ICC>0.75)。结论E-LINK 手部肌力评估系统效度和信度良好。     

长期卧床高龄老年人握力的重测信度

目的 探讨长期卧床80岁以上高龄老年人握力的重测信度.方法 对20例卧床时间超过1年的80岁以上老年人取卧姿,采用JAMAR握力器分别测试其左、右手的握力.第1次测试结束7 d后,在同一时间段由同一测试者重复测试1次.结果 左于握力和右手握力的组内相关系数(ICC)分别为0.985和0.970.结论 长期卧床高龄老年人的握力测试具有较高的重测信度.     

老年男性握力増龄性变化横断面研究及与国外参考值比较

目的评估不同年龄层老年人的握力表现,并与国外参考值比较。方法112名老年人依其年龄分成65～69岁、70～74岁、75～79岁、80～84岁、85～89岁和90～95岁6组。通过Jamar握力器对受试者进行握力测量。结果握力与年龄之间呈现中度负相关（左侧：r=-0.681,P＜0.001;右侧：r=-0.68,P＜0.001）。逐步回归分析结果显示年龄因素可以解释47%右利手握力变化（R²=0.468, F=47.951,P＜0.001）。在75～79和85～89岁两个年龄段的握力下降程度较其他年龄段更为显著。结论老年人的握力随着年龄增大而呈逐渐下降趋势,在75岁以上老年男性人群中尤为明显。国外老年男性握力参考值并不适用于中国人。     

围绝经期评定量表Menopause Rating Scale(MRS)中文版信度及效度分析

[目的]测定围绝经期评定量表(MRS)中文版的信度和效度。[方法]应用MRS中文版对126例围绝经期女性进行测量,对测定结果进行信度和效度分析。[结果]MRS中文版总的Cronbach′sα系数为0.890,3个维度的Cronbach′sα系数为0.731～0.868;总问卷的重测信度为0.887,3个维度的重测信度为0.661～0.883;探索性因子分析表明MRS中文版包括3个因子,共11个条目;3个因子可以解释总方差的73.68%;验证性因子分析显示数据拟合良好(χ2/df为1.170,近似误差均方根(RMSEA)为0.050,规范拟合指数(NFI)为0.894。[结论]MRS中文版具有良好的信度和效度,适合测量中国围绝经期妇女的生活质量。     

心脏康复推荐量表的汉化及信效度检验

目的 汉化心脏康复(cardiac rehabilitation, CR)推荐量表(recommending cardiac rehabilitation scale, ReCaRe)并检验其信度和效度。方法 在获得源量表作者授权后,通过Brislin翻译模型汉化ReCaRe,经过专家文化调试,选取80名医护人员进行预实验,综合后形成中文版ReCaRe(C-ReCaRe)。采取目的抽样法,选取2022年10月—2023年1月18所医院280名医护人员进行调查,6周后对其中30名进行重测,收集问卷数据进行分析。结果 (1)280名医护人员同意接受调查,完成率达100%;实际回收266份有效问卷,测试有效率95%;量表的完成时间1～5 min。(2)高低2组的决断值为3.984～6.723(P<0.01);各条目得分与量表总分的相关系数r为0.523～0.706(P<0.01)。(3)总量表的Cronbach′s α为0.930;总量表的折半信度为0.789,各维度的折半信度为0.806～0.905。总量表的重测信度0.901;各维度的重测信度为0.733～0.964(P<...     

三维步态分析对下肢生物力学变化的重测信度研究

目的:观察健康人在步行过程中下肢运动学、动力学、地面反作用力以及表面肌电信号的重测信度。方法:采用VICON (NEXUS 1.8.5)三维步态分析系统及NORAXON无线表面肌电图测试13名健康人步行过程中下肢运动学、动力学、地面反作用力以及表面肌电信号的重测信度。采用组内相关系数(ICC)及测量标准误(SEM)比较两次测试结果的相对信度与绝对信度。结果:步行过程中步速、下肢运动学、动力学、地面反作用力以及表面肌电信号均具有良好的重测信度ICC 0.78～0.96,运动学参数测量标准误SEM%为4.18～15.6,动力学参数SEM%为3.31～21.82,地面反作用力SEM%为1.70～16.67,表面肌电信号SEM%为8.00～11.11。结论:三维步态分析系统结合表面肌电图可用于评估步行时下肢运动学、动力学、地面反作用力以及表面肌电信号,且具有良好的重测信度。     

特殊学校脑瘫儿童步行能量消耗测定的重测信度及测量误差

目的明确特殊学校脑瘫儿童步行能量消耗测定的重测信度及测量误差。方法以2010 年9 月~12 月上海浦东新区特殊学校在校脑瘫儿童13 例为研究对象,令受试者在往返50 min 的步道上连续步行6 min,测定步行距离、休息与步行时的心率,计算物理消耗指数(PCI)。同一受试者在间隔1 周后的相同时间、地点、状况下进行重复测定,通过比较前后测定结果之间的相关性确定重测信度和测量误差。结果重测信度检验显示,步行时心率具有良好的信度,步行距离和PCI 具有较好的信度(ICC=0.77~0.83),而休息时心率的信度较低(ICC=0.38),但是PCI 指数的测量误差较大。结论PCI 指数的重测信度较好,但是测量误差较大,易于受到被测者情绪的影响,用于脑瘫儿童步行能耗具有一定的局限性。     

老年人主动性静态和动态平衡测试的重测信度:Korebalance平衡测量系统

目的研究Korebalance平衡测量系统老年人在主动模式下静态和动态平衡测试的重测信度。方法 20名符合入选条件的老年人参与本研究,应用Korebalance平衡测量系统测试受试者在主动模式下静态和动态平衡能力。在7d后同一时间由同一测试者重复测试1次。用组内相关系数(ICC)分析重测信度。结果主动模式下静态和动态平衡测试具有较好的重测信度(ICC=0.804～0.923)。结论 Korebalance平衡测量系统测试老年人在主动模式下静态和动态平衡能力具有高度重测信度。     

Test-Retest Reliability of Handgrip Strength Measurement Using a Hydraulic Hand Dynamometer in Patients With Cervical Radiculopathy

Objective

The purpose of this study was to evaluate the test-retest reliability of handgrip strength measurement using a hydraulic hand dynamometer in patients with cervical radiculopathy (CR).

Methods

A convenience sample of 19 participants (14 men and 5 women; mean ± SD age, 50.5 ± 12 years) with CR was measured using a Jamar hydraulic hand dynamometer by the same rater on 2 different testing sessions with an interval of 7 days between sessions. Data collection procedures followed standardized grip strength testing guidelines established by the American Society of Hand Therapists. During the repeated measures, patients were advised to rest their upper limb in the standardized arm position and encouraged to exert 3 maximum gripping efforts. The mean value of the 3 efforts (measured in kilogram force [Kgf]) was used for data analysis. The intraclass correlation coefficient, SEM, and the Bland-Altman plot were used to estimate test-retest reliability and measurement precision.

Results

Grip strength measurement in CR demonstrated an intraclass correlation coefficient of 0.976, suggesting excellent test-retest reliability. The small SEM in both testing sessions (SEM₁, 2.41 Kgf; SEM₂, 2.51 Kgf) as well as the narrow width of the 95% limits of agreements (95% limits of agreement, − 4.9 to 4.4 Kgf) in the Bland-Altman plot reflected precise measurements of grip strength in both occasions.

Conclusions

Excellent test-retest reliability for grip strength measurement was measured in patients with CR, demonstrating that a hydraulic hand dynamometer could be used as an outcome measure for these patients.     

Using the BTE Primus to measure grip and wrist flexion strength in physically active wheelchair users: an exploratory study.

OBJECTIVE: The purpose of this study was to establish test-retest reliability values for the newly designed grip and wrist attachments of the BTE Primus and to determine criterion-related validity of the new grip attachment against the Jamar dynamometer. An additional purpose was to explore the differences in grip and wrist flexion strength between wheelchair users and control participants without disabilities and to examine the effect of body position on strength in persons without disabilities. METHOD: Wheelchair users and matched controls (13 per group) were tested for grip and wrist flexion strength on the BTE Primus and for grip on the Jamar dynamometer. RESULTS: The BTE Primus grip attachment was found to be valid and reliable. No significant differences were found in static and dynamic grip or wrist flexion strength between the two groups or in the sitting versus standing position for the control group. CONCLUSION: The findings suggest that the BTE Primus may be used to assess grip and wrist flexion strength validly and reliably for both wheelchair users and persons without disabilities.     

Detecting sincerity of effort when measuring grip strength

The purpose of the present study was to determine whether sincere and faked grip strength measurements could be distinguished from one another by the patterns of measurements obtained for the five handle (hand size) positions of the Jamar dynamometer. Healthy subjects were instructed on different trials to give a sincere, maximal effort or to fake weakness of grip. Results were that the patterns did differ for sincere and fake trials, but not as strongly as expected. The recommendation is made that further research be done using patients with upper extremity injury.     

Isometric hand grip strength correlated with isokinetic data of the shoulder stabilizers in individuals with chronic stroke

The purpose of this study was to examine the relationships between isometric hand grip (HG) strength and isokinetic strength data of the glenoumeral and scapulothoracic muscles in 12 individuals with chronic hemiparesis due to stroke. Measures of maximal grip strength were obtained on the HG dynamometer Jamar(?). Isokinetic measures of peak torque and work during shoulder rotations and scapular protraction-retraction movements were obtained with the isokinetic dynamometer at a speed of 60°/s. Pearson correlation coefficients between isometric HG and isokinetic strength data ranged between 0.60 and 0.82 for the peak torque and between 0.59 and 0.86 for the isokinetic work. The findings suggested that, in absence of isokinetic dynamometers, isometric HG strength measurements could be clinically used to monitor strength levels of the shoulder stabilizers and to guide load progressions during strengthening interventions for people with chronic hemiparesis.     

Measurement of hand grip strength in the elderly: A scoping review with recommendations

IntroductionHand grip strength has been widely used as a lead measure in geriatric conditions such as frailty. However, diversity in assessment protocols and methodologies creates uncertainty in the comparison of outcome measurements. The aim of this study was to review the literature relating to the measurement of hand grip strength in older adults, in order to develop further consensus in relation to the use of existing protocols in clinical and community settings, with an emphasis on practicality and suitability for frail persons.MethodsFive electronic English databases were searched using keywords such as ‘hand grip strength’, ‘clinimetric assessment’, and their synonyms. Age-related trends in adults aged ≥65 years were assessed, and comparisons were made of the following variables: dynamometer model and handle setting, hand positioning, warm-up trials, grip duration, number of repeated tests, rest periods, laterality of tested hand, and whether encouragement was given to the subjects.ResultsThirty-four research papers met the inclusion criteria and were included. A Jamar hand dynamometer was most frequently used. Variations were found in the positioning of the subject and in the duration of the rest period, which ranged from 10 to 20 s to 1 min. Grip strength was typically measured three times in the dominant hand, with the strongest grip being recorded and no encouragement being provided during assessment.ConclusionsBased on the scoping review, we propose a detailed and standardised protocol that is suitable for the assessment of hand grip strength in frail older adults.     

Validity and reproducibility of the Jamar dynamometer in children aged 4-11 years

PURPOSE: Validity and reproducibility of the Jamar dynamometer were evaluated in children aged 4-11 years. METHOD: Hand grip strength was measured on the dominant side and non-dominant side in 67 patients who had been referred to our specialist centre in the past 3 years because of suspected myopathy. All the patients had had muscle biopsy. Sixteen out of the 67 patients proved to have myopathy, while 51 had no myopathy. The investigator was blinded against the true diagnosis and clinical course of the patients at the time of testing. Validity was assessed by the power to discriminate between patients with and without myopathy, using logistic regression analysis and receiver operating characteristic (ROC) analysis. The area under the ROC curve (AUC) was calculated as a measure of the discriminative power. Sensitivity (Se) and specificity (Sp) were assessed at a specifically chosen cut-off point. Reproducibility was assessed by evaluating the test-retest reliability in a stratified random sample of 40 patients who returned for remeasurements, using the intraclass correlation coefficient (ICC). RESULTS: AUCs ranged from 0.78 - 0.82. At an Se = 81% cut-off point, Sp varied from 67-73%. ICCs ranged from 0.91-0.93. CONCLUSIONS: The Jamar dynamometer had discriminative power in children with suspected myopathy. Reproducibility was high. The Jamar dynamometer was a good, but not completely accurate, test for myopathy.     

Grip and pinch strength: norms for 6- to 19-year-olds

The purpose of this study was to establish normative data for 6- to 19-year-olds on four tests of hand strength. The Jamar dynamometer was used to measure grip strength and a pinch gauge was used to measure tip, key, and palmar pinch. A sample of 231 males and 240 females from the seven-county Milwaukee area was tested, using standardized positioning and instructions. Results of this study indicate that increases in grip and pinch strength coincide with increases in chronological age, that males are stronger than females in all age groups, and that hand dominance does not significantly affect hand strength scores. Normative data collected in this study were slightly higher than norms from previous American and Australian studies.     

Reference values for adult grip strength measured with a Jamar dynamometer: a descriptive meta-analysis

The purpose of this meta-analysis was to consolidate the results of studies presenting normative values for grip strength obtained with the Jamar dynamometer in accordance with the recommendations of the American Society of Hand Therapists. Relevant data from 12 sources (3317 subjects) were employed. Means and 95% confidence intervals are presented for the left and right sides of men and women in 12 age groups (20–24, 25–29, 30–34, 35–39, 40–44, 45–49, 50–54, 55–59, 60–64, 65–69, 70–74, 75+ years). The consolidated grip strength reference values offer a better standard for comparison than provided by any single study alone. Limitations in the meta-analysis notwithstanding, the lower limit of the 95% confidence interval can serve as a reasonable threshold for establishing grip strength impairment among adults.     

Does Elbow Position Affect Strength and Reproducibility of Power Grip Measurements?

Effects of elbow positioning on grip strength and its between-day reliability of measurement were tested bilaterally in 30 healthy adults. Grip strength was measured twice with a Jamar dynamometer at 0°, 30°, 60°, 90° and 120° of elbow flexion one week apart. Intraclass correlation coefficient model_(1,1) was > 0.987 for each test, and limits of agreement reveal narrow ranges of the 95% confidence intervals for each test, which reflect good between-day reliability for these measurements in both absolute and relative terms. Grip strength at 120° was significantly lower than all other positions on both sides (p < 0.001), whereas the grip strength at 90° was highest among all positions tested. The grip strengths at 0°, 30° and 60° were, in general, 0.5-3% lower than the measurements taken at 90° of elbow flexion, but the differences were not statistically significant. These findings suggest that between-day comparison of grip strength is valid and reproducible in the same testing position, and 120° of elbow flexion is not a desirable position for grip strengthening exercise. The differences in grip strength can be explained by the length-tension relationship and the clinical implications for these findings are discussed.