Intra- and inter-examiner reliability in angular measurements of the knee with a smartphone application

Derhon, Viviane; Santos, Rodrigo Marques dos; Brandalize, Michelle; Brandalize, Danielle; Rossi, Luciano Pavan

doi:10.1515/humo-2017-0011

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…Moreover, the current study demonstrated a higher ICC value than that reported by Derhon et al (2017), who showed a good intra-tester correlation (ICC > 0.85) of passive knee flexion ROM in healthy women. The SEM and MDD values in the present study seemed to be extremely similar to those of Mehta et al (2017), who reported smaller SEM (2.72°) and MDD (6.3°) in assessing knee flexion ROM.…”

Section: Discussioncontrasting

confidence: 66%

Validity and Reliability of a Smartphone and Digital Inclinometer in Measuring the Lower Extremity Joints Range of Motion

Mohammad¹,

Elattar²,

Elsais³

et al. 2021

Monten. J. Sports Sci. Med.

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In clinical settings, available valid and reliable tools are important components in evaluating the lower extremity range of motion. Although the digital inclinometer is highly reliable compared to the universal goniometer, its availability and high cost impede its extensive use. Nowadays, smartphone applications have become widely available to clinicians for assessing the joint range of motion. The present study aims to assess the validity and intra-rater reliability of the smart- phone application “Clinometer” for measuring hip, knee, and ankle sagittal ranges of motion, using the digital inclinom- eter as the reference standard. Active hip, knee flexion and ankle dorsiflexion and plantarflexion range-of-motion mea- surements were recorded in 102 young, healthy female participants on two separate occasions using Clinometer and a digital inclinometer. Pearson’s correlation coefficients (r) were used to evaluate the smartphone application’s validity against the digital inclinometer. To assess the reliability of the Clinometer app, the intra-class correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable difference (MDD) were used. Clinometer displayed excellent validity when compared to the digital inclinometer for hip and knee movements (r>0.90), while ankle ROM displayed moderate validity (r = 0.52-0.57). Additionally, Clinometer demonstrated excellent reliability (ICC > 0.90) for hip and knee sagittal plane motion and moderate reliability for the ankle sagittal plane motion (ICC = 0.53–0.67). Cli- nometer is a portable, low-cost, valid, and reliable tool for assessing active hip and knee range of motions and can be easily incorporated into clinical settings; however, it cannot be used interchangeably for ankle measures.

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Section: Discussioncontrasting

confidence: 66%

Validity and Reliability of a Smartphone and Digital Inclinometer in Measuring the Lower Extremity Joints Range of Motion

Mohammad¹,

Elattar²,

Elsais³

et al. 2021

Monten. J. Sports Sci. Med.

View full text Add to dashboard Cite

show abstract

“…currently, smartphones, in addition to their function as cell phones, are pocketsized minicomputers with an extremely large number of applications and count less sensors such as accelerometers, global position ing systems, and travel speed detectors. smartphones have facilitated accessibility for the measurement of several physiological and biomechanical variables such as movement speed [9], jump height [10,11], HR [12], blood pressure, and blood glucose [13]. Because of advancements in technology, the variety of applica tions available on digital platforms have increased the use of smartphones, allowing the measurement of physiological variables such as HR monitoring at rest and during physical exercise [5,14].…”

Section: Introductionmentioning

confidence: 99%

Validation of a smartphone application for the measurement of heart rate during exercise

Vasconcelos¹,

Damorim²,

Santos³

et al. 2020

Hum Mov.

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Purpose. to verify the validity of Instant Heart Rate ® application in smartphones for the measurement of exercise heart rate. Methods. the individuals were initially instructed about all the procedures to be performed and signed the consent form. Anthropometric measures and rest heart rate were evaluated before the experimental session of the study. the subjects partici pated in a selfselected exercise on a cycle ergometer for 10 minutes. Results. the results for validity demonstrated in an iPhone/iOs ® smartphone revealed the intraclass correlation coefficient of r = 0.87 with a tendency to overestimate the heart rate by 5 bpm. For the Lenovo/Android ® model, the intraclass correlation coefficient was r = 0.98, underestimating the values by-0.7 bpm. thus, both systems presented high correlation values, and the error observed did not seem to compromise the several measures that use heart rate as a parameter. Conclusions. It is possible to conclude that heart rate monitoring by the Instant Heart Rate ® application on iPhone/iOs ® and Lenovo/Android ® operating system smartphones can be performed safely during exercise, with the Lenovo/Android ® base being even more reliable than the iPhone/iOs ® system.

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“…There are several reports on the validity and reliability of smartphone applications for joint angle measurement; 37 articles were included in a systematic review by Keogh et al 14) Nine of these papers obtained knee joint angle measurements 6,15,[17][18][19][20][21][22][23] using six applications that were used as accelerometers, which were all evaluated for validity and reliability. Of these applications, two were used on a Samsung Galaxy 21,22) device, while the other four were used on an Apple iPhone 6,15,[17][18][19][20]23) . However, unlike the accelerometer app, the photo-based app is intuitive and easy to use as it determines the angle of the basic axis as well as the measurement using a UG.…”

Section: Discussionmentioning

confidence: 99%

Accuracy and reliability of a smartphone application for measuring the knee joint angle

et al. 2021

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Recently, a photo-based smartphone application for angle measurement-"Grid line imaging application Professional"-was developed to evaluate joint disease treatments. The aim of this study was to determine the accuracy and reliability of the application. [Participants and Methods] We measured the knee joint of a mannequin using an application and a universal goniometer. Twelve examiners measured eight knee joints of mannequins at different arbitrary angles using the application and a universal goniometer. Correlations between the application and universal goniometer measurements were examined using scatter plots and correlation coefficients. Systematic errors of the application were visually confirmed using the Bland-Altman method. Intra-class correlation coefficients were used to evaluate the inter-examiner reliability of the application. [Results] The application and universal goniometer measurements showed a good correlation (r=0.99) and no systematic error. The intra-class correlation coefficient for inter-examiner reliability was 0.999. Furthermore, to evaluate intra-examiner reliability, six examiners measured six different knee joints twice using the application on a 2-day interval. The intra-class correlation coefficient for intra-examiner reliability was 0.982. [Conclusion] The accuracy of the application was equivalent to that of a universal goniometer, and both the inter-and intra-examiner reliabilities of the application were almost perfect.

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Intra- and inter-examiner reliability in angular measurements of the knee with a smartphone application

Cited by 7 publications

References 25 publications

Validity and Reliability of a Smartphone and Digital Inclinometer in Measuring the Lower Extremity Joints Range of Motion

Validity and Reliability of a Smartphone and Digital Inclinometer in Measuring the Lower Extremity Joints Range of Motion

Validation of a smartphone application for the measurement of heart rate during exercise

Accuracy and reliability of a smartphone application for measuring the knee joint angle

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