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https://www.readbyqxmd.com/read/29428343/aerobic-stimulus-induced-by-virtual-reality-games-in-stroke-survivors
#1
Julio Cesar Silva de Sousa, Camila Torriani-Pasin, Amanda Barboza Tosi, Rafael Yokoyama Fecchio, Luiz Augusto Riani da Costa, Cláudia Lúcia de Moraes Forjaz
OBJECTIVE: To evaluate whether virtual reality games (VRG) in stroke survivors produce significant and reproducible heart rate (HR) and oxygen consumption (VO2) responses during their execution, corresponding to an intensity between the anaerobic threshold (AT) and the respiratory compensation point (RCP). DESIGN: Single subjects repeated measure design SETTING: Stroke survivors registered from a rehabilitation program PARTICIPANTS: Twelve chronic hemiparetic stroke survivors (10 men, 58 ± 12 years) rated at 3 or 4 in the Functional Ambulation Categories (FAC)...
February 8, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29419891/technical-note-kinect-v2-surface-filtering-during-gantry-motion-for-radiotherapy-applications
#2
Souha Nazir, Sandy Rihana, Dimitris Visvikis, Hadi Fayad
PURPOSE: In radiotherapy, the Kinect V2 camera, has recently received a lot of attention concerning many clinical applications including patient positioning, respiratory motion tracking and collision detection during the radiotherapy delivery phase. However, issues associated with such applications are related to some materials and surfaces reflections generating an offset in depth measurements especially during gantry motion. This phenomenon appears in particular when the collimator surface is observed by the camera; resulting in erroneous depth measurements, not only in Kinect surfaces itself, but also as a large peak when extracting a 1D respiratory signal from these data...
February 8, 2018: Medical Physics
https://www.readbyqxmd.com/read/29398000/an-instrumental-approach-for-monitoring-physical-exercises-in-a-visual-markerless-scenario-a-proof-of-concept
#3
Marianna Capecci, Maria Gabriella Ceravolo, Francesco Ferracuti, Martina Grugnetti, Sabrina Iarlori, Sauro Longhi, Luca Romeo, Federica Verdini
This work proposes a real-time monitoring tool aimed to support clinicians for remote assessing exercise performances during home-based rehabilitation. The study relies on clinician indications to define kinematic features, that describe five motor tasks (i.e., the lateral tilt of the trunk, lifting of the arms, trunk rotation, pelvis rotation, squatting) usually adopted in the rehabilitation program for axial disorders. These features are extracted by the Kinect v2 skeleton tracking system and elaborated to return disaggregated scores, representing a measure of subjects performance...
January 16, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29397110/validation-of-an-ambient-system-for-the-measurement-of-gait-parameters
#4
Amandine Dubois, Jean-Pierre Bresciani
Fall risk in elderly people is usually assessed using clinical tests. These tests consist in a subjective evaluation of gait performed by healthcare professionals, most of the time shortly after the first fall occurrence. We propose to complement this one-time, subjective evaluation, by a more quantitative analysis of the gait pattern using a Microsoft Kinect. To evaluate the potential of the Kinect sensor for such a quantitative gait analysis, we benchmarked its performance against that of a gold-standard motion capture system, namely the OptiTrack...
January 31, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29359108/dioptric-defocus-maps-across-the-visual-field-for-different-indoor-environments
#5
Miguel García García, Arne Ohlendorf, Frank Schaeffel, Siegfried Wahl
One of the factors proposed to regulate the eye growth is the error signal derived from the defocus in the retina and actually, this might arise from defocus not only in the fovea but the whole visual field. Therefore, myopia could be better predicted by spatio-temporally mapping the 'environmental defocus' over the visual field. At present, no devices are available that could provide this information. A 'Kinect sensor v1' camera (Microsoft Corp.) and a portable eye tracker were used for developing a system for quantifying 'indoor defocus error signals' across the central 58° of the visual field...
January 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29354641/a-data-set-of-human-body-movements-for-physical-rehabilitation-exercises
#6
Aleksandar Vakanski, Hyung-Pil Jun, David Paul, Russell Baker
The article presents University of Idaho - Physical Rehabilitation Movement Data (UI-PRMD) - a publically available data set of movements related to common exercises performed by patients in physical rehabilitation programs. For the data collection, 10 healthy subjects performed 10 repetitions of different physical therapy movements, with a Vicon optical tracker and a Microsoft Kinect sensor used for the motion capturing. The data are in a format that includes positions and angles of full-body joints. The objective of the data set is to provide a basis for mathematical modeling of therapy movements, as well as for establishing performance metrics for evaluation of patient consistency in executing the prescribed rehabilitation exercises...
March 2018: Data
https://www.readbyqxmd.com/read/29337023/the-effects-of-functional-training-bicycle-exercise-and-exergaming-on-walking-capacity-of-elderly-with-parkinson-s-disease-a-pilot-randomized-controlled-single-blinded-trial
#7
Daniel Dominguez Ferraz, Karen Valadares Trippo, Gabriel Pereira Duarte, Mansueto Gomes Neto, Kionna Oliveira Bernardes Santos, Jamary Oliveira Filho
OBJECTIVES: To compare the effects of functional training, bicycle exercise and exergaming on walking capacity of elderly with Parkinson disease (PD). DESIGN: A pilot randomized controlled single-blinded trial. SETTING: A State Reference Health Care Centre for Elderly, a public reference outpatient clinic for the elderly. PARTICIPANTS: Sixty-two elderly individuals (≥60 years-old) with idiopathic PD (stage 2 to 3 of modified Hoehn and Yahr) according to the London Brain Bank...
January 11, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29333996/energy-expenditure-and-intensity-of-active-video-games-in-children-and-adolescents
#8
Karina L R Canabrava, Fernanda R Faria, Jorge R P de Lima, Dartagnan P Guedes, Paulo R S Amorim
PURPOSE: This study aimed to compare the energy expenditure and intensity of active video games to that of treadmill walking in children and adolescents. METHOD: Seventy-two boys and girls (aged 8-13 years) were recruited from local public schools. Energy expenditure and heart rate were measured during rest, during 3-km/hr, 4-km/hr, and 5-km/hr walks, and during active games (Adventure, Boxing I, Boxing II, and Dance). During walking and active games, we also assessed physical activity using an accelerometer...
January 15, 2018: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29324411/virtual-activities-of-daily-living-for-recovery-of-upper-extremity-motor-function
#9
Richard J Adams, Matthew D Lichter, Allison Ellington, Marga White, Kate Armstead, James T Patrie, Paul T Diamond
A study was conducted to investigate the effectiveness of virtual activities of daily living (ADL) practice using the SaeboVR software system for the recovery of upper extremity (UE) motor function following stroke. The system employs Kinect sensor-based tracking to translate human UE motion into the anatomical pose of the arm of the patient's avatar within a virtual environment, creating a virtual presence within a simulated task space. Patients gain mastery of 12 different integrated activities while traversing a metaphorical "road to recovery" that includes thematically linked levels and therapist-selected difficulty settings...
January 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/29310637/reliability-and-validity-of-a-novel-kinect-based-software-program-for-measuring-posture-balance-and-side-bending
#10
Wilhelmus Johannes Andreas Grooten, Lisa Sandberg, John Ressman, Nicolas Diamantoglou, Elin Johansson, Eva Rasmussen-Barr
BACKGROUND: Clinical examinations are subjective and often show a low validity and reliability. Objective and highly reliable quantitative assessments are available in laboratory settings using 3D motion analysis, but these systems are too expensive to use for simple clinical examinations. Qinematic™ is an interactive movement analyses system based on the Kinect camera and is an easy-to-use clinical measurement system for assessing posture, balance and side-bending. The aim of the study was to test the test-retest the reliability and construct validity of Qinematic™ in a healthy population, and to calculate the minimal clinical differences for the variables of interest...
January 8, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29288962/assessing-dynamic-postural-control-during-exergaming-in-older-adults-a-probabilistic-approach
#11
V Soancatl Aguilar, C J C Lamoth, N M Maurits, J B T M Roerdink
Digital games controlled by body movements (exergames) have been proposed as a way to improve postural control among older adults. Exergames are meant to be played at home in an unsupervised way. However, only few studies have investigated the effect of unsupervised home-exergaming on postural control. Moreover, suitable methods to dynamically assess postural control during exergaming are still scarce. Dynamic postural control (DPC) assessment could be used to provide both meaningful feedback and automatic adjustment of exergame difficulty...
December 16, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29276332/beating-time-how-ensemble-musicians-cueing-gestures-communicate-beat-position-and-tempo
#12
Laura Bishop, Werner Goebl
Ensemble musicians typically exchange visual cues to coordinate piece entrances. "Cueing-in" gestures indicate when to begin playing and at what tempo. This study investigated how timing information is encoded in musicians' cueing-in gestures. Gesture acceleration patterns were expected to indicate beat position, while gesture periodicity, duration, and peak gesture velocity were expected to indicate tempo. Same-instrument ensembles (e.g., piano-piano) were expected to synchronize more successfully than mixed-instrument ensembles (e...
January 2018: Psychology of Music
https://www.readbyqxmd.com/read/29258231/hazardous-object-detection-by-using-kinect-sensor-in-a-handle-type-electric-wheelchair
#13
Jeyeon Kim, Takaaki Hasegawa, Yuta Sakamoto
To ensure the safety of a handle-type electric wheelchair (hereinafter, electric wheelchair), this paper describes the applicability of using a Kinect sensor. Ensuring the mobility of elderly people is a particularly important issue to be resolved. An electric wheelchair is useful as a means of transportation for elderly people. Considering that the users of electric wheelchairs are elderly people, it is important to ensure the safety of electric wheelchairs at night. To ensure the safety of an electric wheelchair at night, we constructed a hazardous object detection system using commercially available and inexpensive Kinect sensors and examined the applicability of the system...
December 18, 2017: Sensors
https://www.readbyqxmd.com/read/29244874/maximum-walking-speed-in-multiple-sclerosis-assessed-with-visual-perceptive-computing
#14
Anuschka Grobelny, Janina R Behrens, Sebastian Mertens, Karen Otte, Sebastian Mansow-Model, Theresa Krüger, Elona Gusho, Judith Bellmann-Strobl, Friedemann Paul, Alexander U Brandt, Tanja Schmitz-Hübsch
BACKGROUND: Gait is often impaired in people with multiple sclerosis (PwMS), but detailed assessment of gait impairment in research and care remains challenging. In a previous pilot study we reported the feasibility of visual perceptive computing (VPC) for gait assessment in PwMS using the Short Maximum Speed Walk (SMSW), which assesses gait on recording distances confined to less than 4 meters. OBJECTIVE: To investigate the equivalence of SMSW to rater-based timed 25ft...
2017: PloS One
https://www.readbyqxmd.com/read/29239677/effects-of-kinect-adventures-games-versus-conventional-physical-therapy-on-postural-control-in-elderly-people-a-randomized-controlled-trial
#15
Jéssica Maria Ribeiro Bacha, Gisele Cristine Vieira Gomes, Tatiana Beline de Freitas, Larissa Alamino Pereira Viveiro, Keyte Guedes da Silva, Géssika Costa Bueno, Eliana Maria Varise, Camila Torriani-Pasin, Angélica Castilho Alonso, Natalia Mariana Silva Luna, Júlia Maria D'Andrea Greve, José Eduardo Pompeu
OBJECTIVE: To compare the effectiveness of Kinect Adventures games versus conventional physiotherapy to improve postural control (PC), gait, cardiorespiratory fitness, and cognition of the elderly. In addition, we evaluated the safety, acceptability, and adherence to the interventions. MATERIALS AND METHODS: The study was a randomized clinical trial in which 46 elderly individuals were selected, mean age 69.3 (5.34) years. Participants were allocated to the Kinect Adventures Training Group (KATG) or the Conventional Physical Therapy Group (CPTG), 23 individuals in each group...
December 14, 2017: Games for Health
https://www.readbyqxmd.com/read/29232832/hybrid-orientation-based-human-limbs-motion-tracking-method
#16
Grzegorz Glonek, Adam Wojciechowski
One of the key technologies that lays behind the human-machine interaction and human motion diagnosis is the limbs motion tracking. To make the limbs tracking efficient, it must be able to estimate a precise and unambiguous position of each tracked human joint and resulting body part pose. In recent years, body pose estimation became very popular and broadly available for home users because of easy access to cheap tracking devices. Their robustness can be improved by different tracking modes data fusion. The paper defines the novel approach-orientation based data fusion-instead of dominating in literature position based approach, for two classes of tracking devices: depth sensors (i...
December 9, 2017: Sensors
https://www.readbyqxmd.com/read/29225912/effects-of-virtual-rehabilitation-versus-conventional-physical-therapy-on-postural-control-gait-and-cognition-of-patients-with-parkinson-s-disease-study-protocol-for-a-randomized-controlled-feasibility-trial
#17
Keyte Guedes Silva, Tatiana Beline De Freitas, Flávia Doná, Fernando Freitas Ganança, Henrique Ballalai Ferraz, Camila Torriani-Pasin, José Eduardo Pompeu
Background: There is an association among postural instability, gait dysfunction, and cognitive impairment in subjects with Parkinson's disease (PD). Difficulty in dividing attention, response inhibition, and visuospatial attention deficiencies may contribute to the impairment of motor performance during daily activities. There are strong evidences that physical therapy can prevent physical and cognitive decline in individuals with PD. Recently, the European Physiotherapy Guideline (EPG) was developed based on randomized clinical trials about the effectiveness of the physical therapy to improve the functional deficiencies of individuals with PD...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29218680/cardiovascular-profile-of-valbenazine-analysis-of-pooled-data-from-three-randomized-double-blind-placebo-controlled-trials
#18
Dao Thai-Cuarto, Christopher F O'Brien, Roland Jimenez, Grace S Liang, Joshua Burke
INTRODUCTION: Valbenazine is a novel vesicular monoamine transporter 2 inhibitor approved for the treatment of tardive dyskinesia in adults. OBJECTIVE: Using data from double-blind, placebo-controlled trials, analyses were conducted to evaluate the cardiovascular effects of once-daily valbenazine in patients with a psychiatric disorder who developed tardive dyskinesia after exposure to a dopamine-blocking medication. METHODS: Data were pooled from three 6-week, double-blind, placebo-controlled trials: KINECT (NCT01688037), KINECT 2 (NCT01733121), and KINECT 3 (NCT02274558)...
December 7, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/29203011/automated-recognition-of-rear-seat-occupants-head-position-using-kinect%C3%A2-3d-point-cloud
#19
Helen Loeb, Jinyong Kim, Kristy Arbogast, Jonny Kuo, Sjaan Koppel, Suzanne Cross, Judith Charlton
INTRODUCTION: Child occupant safety in motor-vehicle crashes is evaluated using Anthropomorphic Test Devices (ATD) seated in optimal positions. However, child occupants often assume suboptimal positions during real-world driving trips. Head impact to the seat back has been identified as one important injury causation scenario for seat belt restrained, head-injured children (Bohman et al., 2011). There is therefore a need to understand the interaction of children with the Child Restraint System to optimize protection...
December 2017: Journal of Safety Research
https://www.readbyqxmd.com/read/29192511/the-kinect-project-group-motion-based-gaming-for-people-living-with-dementia
#20
Erica Dove, Arlene Astell
Engaging in enjoyable activities is an essential part of well-being, but people with dementia can find participation increasingly difficult. Motion-based technologies can provide meaningful engagement in a wide range of activities, but for people with dementia to take advantage of these devices requires a good understanding of how best to select and present these activities to this population. The objective of this study was to explore the use of motion-based technology (Xbox Kinect) as a group activity for people with dementia who attend adult day programmes...
January 1, 2017: Dementia
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