Retrospective analysis of changes in upper body movement asymmetry after diagnostic analgesia in 149 horses undergoing clinical lameness examination accompanied by inertial sensor gait analysis

AbstractGait analysis is an important and useful part of the daily therapeutic routine. InvestiGAIT, an inertial sensor-based system, was developed for using in different research projects with a changing number and position of sensors and because commercial systems do not capture the motion of the upper body. The current study is designed to evaluate the reliability of InvestiGAIT consisting of four off-the-shelf inertial sensors and in-house capturing and analysis software. Besides the determination of standard gait parameters, the motion of the upper body (pelvis and spine) can be investigated. Kinematic data of 25 healthy individuals (age: 25.6±3.3 years) were collected using a test-retest design with 1 week between measurement sessions. We calculated different parameters for absolute [e.g. limits of agreement (LoA)] and relative reliability [intraclass correlation coefficients (ICC)]. Our results show excellent ICC values for most of the gait parameters. Midswing height (MH), height difference (HD) of initial contact (IC) and terminal contact (TC) and stride length (SL) are the gait parameters, which did not exhibit acceptable values representing absolute reliability. Moreover, the parameters derived from the motion of the upper body (pelvis and spine) show excellent ICC values or high correlations. Our results indicate that InvestiGAIT is suitable for reliable measurement of almost all the considered gait parameters.

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On Expressive Features for Gait Analysis using Lower Limb Inertial Sensor Data

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2020.12.396 ◽

2020 ◽

Vol 53 (2) ◽

pp. 15990-15997

Author(s):

Felix Laufer ◽

Michael Lorenz ◽

Bertram Taetz ◽

Gabriele Bleser

Keyword(s):

Gait Analysis ◽

Lower Limb ◽

Inertial Sensor ◽

Sensor Data

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EXPRESS: The effect of low frequency equalisation on preference and sensorimotor synchronisation in music

Quarterly Journal of Experimental Psychology ◽

10.1177/17470218211037145 ◽

2021 ◽

pp. 174702182110371

Author(s):

Scott Beveridge ◽

Estefanía Cano ◽

Steffen A. Herff

Keyword(s):

Body Movement ◽

Low Frequency ◽

Empirical Support ◽

Processing Technique ◽

Original Version ◽

Upper Body ◽

Signal Processing Technique ◽

Band Energy ◽

Sensorimotor Synchronisation ◽

Specific Frequency

Equalisation, a signal processing technique commonly used to shape the sound of music, is defined as the adjustment of the energy in specific frequency components of a signal. In this work we investigate the effects of equalisation on preference and sensorimotor synchronisation in music. Twenty-one participants engaged in a goal-directed upper body movement in synchrony with stimuli equalised in three low-frequency sub-bands (0 - 50 Hz, 50 - 100 Hz, 100 - 200 Hz). To quantify the effect of equalisation, music features including spectral flux, pulse clarity, and beat confidence were extracted from seven differently equalised versions of music tracks - one original and six manipulated versions for each music track. These music tracks were then used in a movement synchronisation task. Bayesian mixed effects models revealed different synchronisation behaviours in response to the three sub-bands considered. Boosting energy in the 100 - 200 Hz sub-band reduced synchronisation performance irrespective of the sub-band energy of the original version. An energy boost in the 0 - 50 Hz band resulted in increased synchronisation performance only when the sub-band energy of the original version was high. An energy boost in the 50 - 100 Hz band increased synchronisation performance only when the sub-band energy of the original version was low. Boosting the energy in any of the three subbands increased preference regardless of the energy of the original version. Our results provide empirical support for the importance of low-frequency information for sensorimotor synchronisation and suggest that the effect of equalisation on preference and synchronisation are largely independent of one another.

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Validation of wearable inertial sensor-based gait analysis system for measurement of spatiotemporal parameters and lower extremity joint kinematics in sagittal plane

Proceedings of the Institution of Mechanical Engineers Part H Journal of Engineering in Medicine ◽

10.1177/09544119211072971 ◽

2022 ◽

pp. 095441192110729

Author(s):

Gunjan Patel ◽

Rajani Mullerpatan ◽

Bela Agarwal ◽

Triveni Shetty ◽

Rajdeep Ojha ◽

...

Keyword(s):

Gait Analysis ◽

Motion Analysis ◽

Motion Capture ◽

Inertial Sensor ◽

Joint Kinematics ◽

Percentage Error ◽

Motion Capture System ◽

Spatiotemporal Parameters ◽

Analysis System ◽

Motion Capture Systems

Wearable inertial sensor-based motion analysis systems are promising alternatives to standard camera-based motion capture systems for the measurement of gait parameters and joint kinematics. These wearable sensors, unlike camera-based gold standard systems, find usefulness in outdoor natural environment along with confined indoor laboratory-based environment due to miniature size and wireless data transmission. This study reports validation of our developed (i-Sens) wearable motion analysis system against standard motion capture system. Gait analysis was performed at self-selected speed on non-disabled volunteers in indoor ( n = 15) and outdoor ( n = 8) environments. Two i-Sens units were placed at the level of knee and hip along with passive markers (for indoor study only) for simultaneous 3D motion capture using a motion capture system. Mean absolute percentage error (MAPE) was computed for spatiotemporal parameters from the i-Sens system versus the motion capture system as a true reference. Mean and standard deviation of kinematic data for a gait cycle were plotted for both systems against normative data. Joint kinematics data were analyzed to compute the root mean squared error (RMSE) and Pearson’s correlation coefficient. Kinematic plots indicate a high degree of accuracy of the i-Sens system with the reference system. Excellent positive correlation was observed between the two systems in terms of hip and knee joint angles (Indoor: hip 3.98° ± 1.03°, knee 6.48° ± 1.91°, Outdoor: hip 3.94° ± 0.78°, knee 5.82° ± 0.99°) with low RMSE. Reliability characteristics (defined using standard statistical thresholds of MAPE) of stride length, cadence, walking speed in both outdoor and indoor environment were well within the “Good” category. The i-Sens system has emerged as a potentially cost-effective, valid, accurate, and reliable alternative to expensive, standard motion capture systems for gait analysis. Further clinical trials using the i-Sens system are warranted on participants across different age groups.

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Automated Analysis of Body Movement in Emotionally Expressive Piano Performances

Music Perception An Interdisciplinary Journal ◽

10.1525/mp.2008.26.2.103 ◽

2008 ◽

Vol 26 (2) ◽

pp. 103-119 ◽

Cited By ~ 65

Author(s):

Ginevra Castellano ◽

Marcello Mortillaro ◽

Antonio Camurri ◽

Gualtiero Volpe ◽

Klaus Scherer

Keyword(s):

Emotional Expression ◽

Temporal Dynamics ◽

Body Movement ◽

Music Performance ◽

The Body ◽

Head Movements ◽

Automated System ◽

Upper Body ◽

Musical Score ◽

Motion Cues

EMOTIONAL EXPRESSION IN MUSIC PERFORMANCE includes important cues arising from the body movement of the musician. This movement is related to both the musical score execution and the emotional intention conveyed. In this experiment, a pianist was asked to play the same excerpt with different emotionally expressive intentions. The aim was to verify whether different expressions could be distinguished based on movement by trying to determine which motion cues were most emotion-sensitive. Analyses were performed via an automated system capable of detecting the temporal profiles of two motion cues: the quantity of motion of the upper body and the velocity of head movements. Results showed that both were sensitive to emotional expression, especially the velocity of head movements. Further, some features conveying information about movement temporal dynamics varied among expressive conditions allowing emotion discrimination. These results are in line with recent theories that underlie the dynamic nature of emotional expression.

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Upper body accelerations during level walking in transtibial amputees

Prosthetics and Orthotics International ◽

10.1177/0309364618792745 ◽

2018 ◽

Vol 43 (2) ◽

pp. 204-212 ◽

Cited By ~ 1

Author(s):

Francesco Paradisi ◽

Eugenio Di Stanislao ◽

Aurora Summa ◽

Stefano Brunelli ◽

M Traballesi ◽

...

Keyword(s):

Root Mean Square ◽

Body Movement ◽

Transverse Plane ◽

Upper Body ◽

Research Report ◽

Original Research ◽

Clinical Approach ◽

Mean Square ◽

Level Walking ◽

Transtibial Amputees

Background: The observation of upper body movement is gaining interest in the gait analysis community. Recent studies involved the use of body-worn motion sensors, allowing translation of laboratory measurements to real-life settings in the context of patient monitoring and fall prevention. Objectives: It was shown that amputee persons demonstrate altered acceleration patterns due to the presence of prosthetic components, while no information is available on how accelerations propagate upwards to the head during level walking. This descriptive study aims to fill this gap. Study design: Original research report. Methods: Twenty definitive prosthesis users with transtibial amputation and 20 age-matched able-bodied individuals participated in the study. Three magneto-inertial measurement units were placed at head, sternum and pelvis level to assess acceleration root mean square. Three repetitions of the 10-m walking test were performed at a self-selected speed. Results: Acceleration root mean square was significantly larger at pelvis and head level in individuals with amputation than in able-bodied participants, mainly in the transverse plane ( p < 0.05). Differences were also observed in how accelerations propagate upwards, highlighting that a different motor strategy is adopted in amputee persons gait to compensate for increased instability. Conclusion: The obtained parameters allow an objective mobility assessment of amputee persons that can integrate with the traditional clinical approach. Clinical relevance Transtibial amputees exhibit asymmetries due to the sound limb’s support prevalence during gait: this is evidenced by amplified accelerations on the transverse plane and by related differences in upper body movement control. Assessing these accelerations and their attenuations upwards may be helpful to understand amputee’s motor strategies and to improve prosthetic training.

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Livelihood vs. Life: The Occupational Well-Being of Women Musician Survivors of Breast Cancer

Medical Problems of Performing Artists ◽

10.21091/mppa.2012.1004 ◽

2012 ◽

Vol 27 (1) ◽

pp. 15-20 ◽

Cited By ~ 1

Author(s):

Sarah Schmalenberger ◽

Charles E Gessert ◽

Jean E Giebenhain ◽

Lisa D Starr

Keyword(s):

Breast Cancer ◽

Side Effects ◽

Cancer Treatment ◽

Body Movement ◽

Well Being ◽

Physical Symptoms ◽

Breast Cancer Treatment ◽

Upper Body ◽

Long Term Effects ◽

Cancer Treatments

The Life and Livelihood Study was designed to describe and understand the experience of women musicians treated for breast cancer. This report focuses on Phase I of the study, a web-based survey that examined subjects’ physical symptoms and side effects following breast cancer treatment. Subjects were recruited nationally, using advertisements in musicians’ publications and presentations at national meetings. Subjects were asked about specific side effects or symptoms they had experienced, their severity and duration, and the effects of symptoms on their capacity to make music. Subjects were also asked what aspect of their breast cancer treatment they associated with each symptom and were invited to provide comments. A total of 321 individuals logged on: 100 met all inclusion criteria. Of these, 90 completed the entire survey. Commonly reported symptoms included fatigue (70%), problems with cognition (53%), limitations in upper body movement (51%), and pain (45%). Many reported that their symptoms were of moderate or greater intensity, and that they persisted for >12 months or were ongoing. The survey documented that many subjects experienced diminished capacity to function as musicians, especially due to pain, limitations in upper body and extremity movement, numbness in the chest and/or arms, contracture/fibrosis, and shortness of breath. These findings are consistent with emerging studies that describe long-term effects of breast cancer treatments. In planning for breast cancer treatment, rehabilitation and survivorship, consideration should be given to how treatment is likely to affect fitness for ongoing professional work.

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