Measurement of Joint Motion: A Guide to Goniometry, Third Edition

Sawant, Anuradha

doi:10.2310/6640.2004.00031

Cited by 19 publications

(7 citation statements)

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“…To our knowledge, no study has shown an effect of gender on movement distortion perception. However, the motion range of the elbow changes according to gender [56]. These anatomical differences might explain a part of our subjects' inter-variability.…”

Section: Discussionmentioning

confidence: 82%

Adapting Virtual Embodiment Through Reinforcement Learning

Porssut

Hou

Blanke

et al. 2022

IEEE Trans. Visual. Comput. Graphics

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In Virtual Reality, having a virtual body opens a wide range of possibilities as the participant's avatar can appear to be quite different from oneself for the sake of the targeted application (e.g. for perspective-taking). In addition, the system can partially manipulate the displayed avatar movement through some distortion to make the overall experience more enjoyable and effective (e.g. training, exercising, rehabilitation). Despite its potential, an excessive distortion may become noticeable and break the feeling of being embodied into the avatar. Past researches have shown that individuals have a relatively high tolerance to movement distortions and a great variability of individual sensitivities to distortions. In this paper, we propose a method taking advantage of Reinforcement Learning (RL) to efficiently identify the magnitude of the maximum distortion that does not get noticed by an individual (further noted the detection threshold). We show through a controlled experiment with subjects that the RL method finds a more robust detection threshold compared to the adaptive staircase method, i.e. it is more able to prevent subjects from detecting the distortion when its amplitude is equal or below the threshold. Finally, the associated majority voting system makes the RL method able to handle more noise within the forced choices input than adaptive staircase. This last feature is essential for future use with physiological signals as these latter are even more susceptible to noise. It would then allow to calibrate embodiment individually to increase the effectiveness of the proposed interactions.

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Section: Discussionmentioning

confidence: 82%

Adapting Virtual Embodiment Through Reinforcement Learning

Porssut

Hou

Blanke

et al. 2022

IEEE Trans. Visual. Comput. Graphics

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“…Measurements were recorded with accuracy of 1 degree. A predefined protocol was used by both observers, based on recommendations in previous literature by using bony landmarks [14, 19, 21, 23–29].…”

Section: Methodsmentioning

confidence: 99%

Validity and Reliability of Elbow Range of Motion Measurements Using Digital Photographs, Movies, and a Goniometry Smartphone Application

Keijsers

Zwerus

Lith

et al. 2018

Journal of Sports Medicine

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Introduction Range of motion (ROM) is closely monitored before and after surgery for stiff elbow and during rehabilitation. Measurements in the home environment may be helpful to increase involvement and adherence of the patient. Therefore, our objective is to investigate the validity and inter- and intraobserver reliability of 3 alternative methods to assess the ROM by the patient in a home-based situation, in comparison to the universal goniometer (UG). We hypothesize that all 3 alternative methods will be valid alternatives and show a level of reliability equivalent to UG. Methods Goniometric measurements of elbow flexion, extension, pronation and supination using photography, movie, and a smartphone application were obtained. The validity of these measurement methods was compared to UG. The interobserver and intraobserver reliability were calculated for all measurement methods. Results Photography and movie based goniometry of the elbow showed good validity in flexion and extension. The interobserver and intraobserver reliability were found to be good to excellent for photo and movie but moderate to poor for UG and the smartphone application. Conclusions Photo or movie based goniometry seems to be a useful option for initial and follow-up measurement of the elbow ROM, both in the outpatient clinic and in a home environment. Based on our study, the smartphone application we used is not recommended.

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“…Standard method for ankle passive range of motion (pROM) measurements was used by means of a manual goniometer [23]. In order to measure the passive ROM (pROM), the patient lies in supine position while his or her knee is kept in extension and hip with no rotation.…”

Section: Ankle Passive Range Of Motion (Prom)mentioning

confidence: 99%

Effects of Extracorporeal Shock Wave Therapy on Muscle Spasticity in Post-Stroke Patients: An Ultrasonography and Clinical-Base Study

Rastgoo

Sarafraz

Najari

et al. 2016

PTJ

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Purpose:To investigate the effect of single session Extracorporeal Shock Wave Therapy (ESWT) over the ankle plantar flexor muscles on the spasticity, muscle architecture, and gait in chronic stroke patients. Methods:This quasi-experimental, single group study had a repeated measures design. A total of 17 post-stroke patients were selected by convenience sampling method, and received 2000 shots of ESWT on the ankle plantar flexor muscles of the affected side in one session. Outcome measures consisted of Modified Modified Ashworth Scale (MMAS), bilateral leg circumference, and muscle architecture parameters (pennation angle, fascicle length, and muscle thickness) of the medial head of the gastrocnemius muscle, timed up and go (TUG) test, self-reported visual analog scale (VAS) of spasticity, and ankle passive Range of Motion (pROM). All outcomes were measured at 2 times: before the intervention and 30 minutes after the intervention. The muscle architecture parameters and leg circumference were also measured immediately after the intervention. Statistical analysis was done using SPSS 18.0. Repeated measures analysis of variance (ANOVA) was performed to evaluate the effects of intervention in time.Results: Wilcoxon test revealed significant improvement in MMAS. Significant improvement in VAS, pROM, and TUG test results is also noted by means of the paired t test. ANOVA showed significant time×side interaction for the pennation angle and leg circumference. Significant effect of time was also shown by ANOVA for leg circumference. Post hoc analyses showed a significant difference for the leg circumference before the intervention and 30 minutes after it. ANOVA showed no significant change in fascicle length and muscle thickness. Spearman's rho revealed significant positive correlation between the changes of the ankle pROM and improvement of the fascicle length. Conclusion:According to the results single session of ESWT over the spastic plantar flexors muscle can improve clinical measures of muscle spasticity and motor function. More studies are needed to clarify the underlying mechanisms for the antispastic effect of ESWT.

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Measurement of Joint Motion: A Guide to Goniometry, Third Edition

Cited by 19 publications

References 0 publications

Adapting Virtual Embodiment Through Reinforcement Learning

Adapting Virtual Embodiment Through Reinforcement Learning

Validity and Reliability of Elbow Range of Motion Measurements Using Digital Photographs, Movies, and a Goniometry Smartphone Application

Effects of Extracorporeal Shock Wave Therapy on Muscle Spasticity in Post-Stroke Patients: An Ultrasonography and Clinical-Base Study

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