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APDM Wearable Technologies wearable accelerometers – opals inertial sensors
Wearable Accelerometers – Opals Inertial Sensors, supplied by APDM Wearable Technologies, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/accelerometer+opal+sensor/opal+wireless+inertial+sensors/pmc11806873-11-46-54
Average 90 stars, based on 1 article reviews
wearable accelerometers – opals inertial sensors - by Bioz Stars, 2026-10
90/100 stars

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other:

Article Title: Impact of Cognitive Tasks on Gait Parameters in Collegiate Athletes
Article Snippet: The participant was instructed to remove their footwear and was then fitted with an accelerometer (Opal Sensor, APDM Inc., Portland, OR) that went around the waist with an elastic belt and was positioned at L5.

Article Title: Integrated linear and nonlinear trunk dynamics identify residual concussion deficits.
Article Snippet: Postural sway is significantly affected by a mild traumatic brain injury, or concussion, and myriad methods have been developed to quantify the severity of concussion symptoms.. The current manuscript quantifies postural sway—as measured by an inertial sensor—in youth athletes with concussion (n=43, age=14.4±2.3 years, 56% female, tested median 7 days post-concussion) and healthy controls (n=38, age=14.9±2.0 years, 55% female) during single-task and dual-task Jo ur n l P -p ro of

Sampling:

Article Title: Methodological Critique of Concussive and Non-Concussive Dual Task Walking Assessments: A Scoping Review
Article Snippet: Chen et al. (2015) [ ] , Eight camera motion capture (Motion Analysis Corporation, Santa Rosa, CA, USA). 25 retroreflective markers on bony landmarks. Data collected at 60 Hz; marker trajectory data low-pass-filtered using a fourth-order Butterworth filter with the cut off frequency set at 8 Hz. OrthoTrak software (Motion Analysis Corporation) calculated joint angles and gait temporal-distance variables. , Joint angles in sagittal: angular velocities estimated for each joint using the generalized cross-validation spline algorithm. Angular displacements and velocities normalised: phase plots. Data from five trials collected for each testing condition. , None. .. Howell et al. (2015) [ ] , Ten camera motion analysis system (Motion Analysis Corporation, Santa Rosa, CA, USA) at a sampling rate of 60 Hz. Retroreflective markers on bony landmarks. Accelerometer (Opal Sensor, APDM Inc., Portland, OR, USA) attached with an elastic belt at L5. Data sampled at 128 Hz. , Linear acceleration measured along three orthogonal axes, x oriented vertically downward, y to the right, z towards the front. Gait velocity: mean forward velocity of the sacral marker during a gait cycle. Heel strikes used to identify the beginning and the end of the gait cycle. Four trials per subject per testing time point. , None. ..

Marker:

Article Title: Methodological Critique of Concussive and Non-Concussive Dual Task Walking Assessments: A Scoping Review
Article Snippet: Chen et al. (2015) [ ] , Eight camera motion capture (Motion Analysis Corporation, Santa Rosa, CA, USA). 25 retroreflective markers on bony landmarks. Data collected at 60 Hz; marker trajectory data low-pass-filtered using a fourth-order Butterworth filter with the cut off frequency set at 8 Hz. OrthoTrak software (Motion Analysis Corporation) calculated joint angles and gait temporal-distance variables. , Joint angles in sagittal: angular velocities estimated for each joint using the generalized cross-validation spline algorithm. Angular displacements and velocities normalised: phase plots. Data from five trials collected for each testing condition. , None. .. Howell et al. (2015) [ ] , Ten camera motion analysis system (Motion Analysis Corporation, Santa Rosa, CA, USA) at a sampling rate of 60 Hz. Retroreflective markers on bony landmarks. Accelerometer (Opal Sensor, APDM Inc., Portland, OR, USA) attached with an elastic belt at L5. Data sampled at 128 Hz. , Linear acceleration measured along three orthogonal axes, x oriented vertically downward, y to the right, z towards the front. Gait velocity: mean forward velocity of the sacral marker during a gait cycle. Heel strikes used to identify the beginning and the end of the gait cycle. Four trials per subject per testing time point. , None. ..



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Equipment and technologies utilised in reviewed studies.

Journal: International Journal of Environmental Research and Public Health

Article Title: Methodological Critique of Concussive and Non-Concussive Dual Task Walking Assessments: A Scoping Review

doi: 10.3390/ijerph20065227

Figure Lengend Snippet: Equipment and technologies utilised in reviewed studies.

Article Snippet: Moore et al. (2017) [ ] Stroke patients n = 25. 4 F, 19 M 63 ± 11 y Reported by Martini et al. (2021) [ ] , Two min continuous walking at a self-selected pace around a 25 m track. Two testing sessions a week apart. 2 weeks continuous usage. Wearable accelerometer (AX3, Axivity, York, UK). GAITRite instrumented walkway (CIR systems, NJ, USA) (7.0 m × 0.6 m) One accelerometer placed on lumbar spine (Opal Sensors, APDM, Inc., Portland, OR, USA). Predefined acceptance ratings for ICCs were set at excellent (≥0.900), good (0.750–0.899), moderate (0.500–0.749) and poor (<0.500). , , AX3 vs. GAITRite; AX3 vs. Opal Sensor.

Techniques: Marker, Software, Sampling, Blocking Assay

Reliability articles cited in reviewed articles.

Journal: International Journal of Environmental Research and Public Health

Article Title: Methodological Critique of Concussive and Non-Concussive Dual Task Walking Assessments: A Scoping Review

doi: 10.3390/ijerph20065227

Figure Lengend Snippet: Reliability articles cited in reviewed articles.

Article Snippet: Moore et al. (2017) [ ] Stroke patients n = 25. 4 F, 19 M 63 ± 11 y Reported by Martini et al. (2021) [ ] , Two min continuous walking at a self-selected pace around a 25 m track. Two testing sessions a week apart. 2 weeks continuous usage. Wearable accelerometer (AX3, Axivity, York, UK). GAITRite instrumented walkway (CIR systems, NJ, USA) (7.0 m × 0.6 m) One accelerometer placed on lumbar spine (Opal Sensors, APDM, Inc., Portland, OR, USA). Predefined acceptance ratings for ICCs were set at excellent (≥0.900), good (0.750–0.899), moderate (0.500–0.749) and poor (<0.500). , , AX3 vs. GAITRite; AX3 vs. Opal Sensor.

Techniques: