Monitoring Activity And Gait In Children

Gait speed was the time taken to walk a specified distance. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Double support time referred to the phase during walking when both feet were in contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Single support time referred to the time when only one limb was in contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometery data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Stance duration was defined as the duration of time the foot is in contact with the ground in a step during gait. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Swing time was defined as the time during which the foot was not in contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Stride length was defined as the distance covered when two steps were taken, one with each foot. It was measured from the heel of one foot to the heel of same foot when it came into contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Step duration was the period between the first contact of a foot and the first following contact of the contralateral foot. Participants had a single in-laboratory visit on Day 1 during which they performed gait monitoring procedures. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Cadence referred to the number of steps taken per minute during gait cycle. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Stride duration refers to the duration between successive heel contacts of the same foot. Participants had to walk on GAITRite walkway (20 feet*3) wearing ActiGraph and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from GAITRite walkway and APDM sensors (reference).

Double support time referred to the phase during walking when both feet were in contact with the ground. Participants had a single in-laboratory visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Single support time referred to the time when only one limb was in contact with the ground. Participants had a single in-laboratory visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Stance duration was defined as the duration of time the foot is in contact with the ground in a step during gait. Participants had a single in-lab visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Swing duration was defined as the time during which the foot was not in contact with the ground. Participants had a single in-laboratory visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Stride length was defined as the distance covered when two steps were taken, one with each foot. It was measured from the heel of one foot to the heel of same foot when it came into contact with the ground. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Step duration was the period between the first contact of a foot and the first following contact of the contralateral foot. Participants had a single in-lab visit during which they performed gait monitoring procedures. For in-lab simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Cadence referred to the number of steps taken per minute during gait cycle. Participants had a single in-laboratory visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Gait speed was the time taken to walk a specified distance. Participants had a single in-laboratory visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Participants had a single in-laboratory visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Stride duration refers to the duration between successive heel contacts of the same foot. Participants had a single in-lab visit during which they performed gait monitoring procedures. For in-laboratory simulated activities, participants were required to alternate between activity blocks through a random path created by dice roll while wearing devices. Activities were done for approximately 20 minutes (approximately 7 minutes of activities [activity block 1], approximately 5 minutes of break and approximately 7 minutes of activities [activity block 2]). Activities: 2 sitting (e.g., look through a book, draw/write), 2 standing (e.g., turn a switch or hang a coat), 2 walking (e.g., move blocks/objects, toss a beanbag and pick it up). Raw accelerometry data collected by ActiGraph devices (comparator) was processed by the GaitPy algorithm to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors (reference).

Total sleep time for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's total sleep opportunity (TSO) window and computing sleep metrics within that window.

The percentage of time asleep for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's TSO window and computing sleep metrics within that window.

Number of wake bouts for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's TSO window and computing sleep metrics within that window.

Sleep onset latency which is time to transition from full wakefulness to sleep, for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's TSO window and computing sleep metrics within that window.

Wake after sleep onset is time for which participants were awake after having initially fallen asleep, for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's TSO window and computing sleep metrics within that window.

Total scratch duration for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's TSO window and computing sleep metrics within that window.

Total scratch episodes for GeneActiv and Panoramic Bracelet was derived by the SleepPy algorithm. SleepPy algorithm was used for detecting a participant's TSO window and computing sleep metrics within that window.

Available minutes represented any recorded accelerometer data per day per device in minutes. Number of available minutes for GENEActiv and Panoramic Bracelet was derived by the in-house built Sci-kit Digital Health (SKDH) package.

Number of minutes of wear include the total number of minutes the device is worn including sleep time and awake time. The wear time parameter (number of minutes of wear) for GENEActiv and Panoramic Bracelet was derived by the in-house built SKDH package.

The wear time parameter (number of wear minutes while awake) for GENEActiv and Panoramic Bracelet was derived by the in-house built SKDH package.

Wearability/comfort questionnaire included a total of 10 items for which the participants (12 to 17 years) or their caregivers (participants aged 3 to 11 years) were required to provide a response on a scale of 0 to 4, where 0 = strongly disagree, and 4 = strongly agree, higher scores indicated more comfort, except for questions 5 ("The device changes the way I move") and 6 ("The device changes the way I behave") , where 0 = strongly agree and 4 = strongly disagree, higher scores indicate more comfort. Number of participants according to response to each item of the wearability/comfort questionnaire is reported.

Number of days to complete enrollment corresponded to the total number of days it took to enroll all study participants within the age groups of 3-5 years, 6-11 years and 12-17 years.

Number of participants enrolled at specified month intervals in the study is reported in this outcome measure.

Number of participants who were able to perform each of the 7 tasks (i.e., walking at natural, slow and fast speeds, tile and carpet walks, 2 sessions of in-lab simulated activities) is reported in this outcome measure.

Percentage of tasks completed from a total of 7 tasks (i.e., walking at natural, slow and fast speeds, tile and carpet walks, 2 sessions of in-lab simulated activities) is reported in this outcome measure.

Wearability/comfort questionnaire included a total of 10 items for which the participants (12 to 17 years) or their caregivers (participants aged 3 to 11 years) were required to provide a response on a scale of 0 to 4, where 0 = strongly disagree, and 4 = strongly agree, higher scores indicate more comfort except for questions 5 ("The device changes the way I move") and 6 ("The device changes the way I behave") , where 0 = strongly agree and 4 = strongly disagree, higher scores indicate more comfort. Number of participants according to response to each item of the wearability/comfort questionnaire is reported.

Wearability/comfort questionnaire included a total of 10 items for which the participants (12 to 17 years) or their caregivers (participants aged 3 to 11 years) were required to provide a response on a scale of 0 to 4, where 0 = strongly disagree, and 4 = strongly agree, higher scores indicate more comfort except for questions 5 ("The device changes the way I move") and 6 ("The device changes the way I behave") , where 0 = strongly agree and 4 = strongly disagree, higher scores indicate more comfort. Number of participants according to response to each item of the wearability/comfort questionnaire is reported.

Double support time referred to the phase during walking when both feet were in contact with the ground. Participants had a single in-lab visit during which they performed gait monitoring procedures. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Single limb support time referred to the time when only one limb was in contact with the ground. Participants had a single in-lab visit during which they performed gait monitoring procedures. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Stance duration was defined as the duration of time the foot is in contact with the ground in a step during gait. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Swing time was defined as the time during which the foot was not in contact with the ground. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Stride length was defined as the distance covered when two steps were taken, one with each foot. It was measured from the heel of one foot to the heel of same foot when it came into contact with the ground. Participants had a single in-lab visit during which they performed gait monitoring procedures. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Step duration was the period between the first contact of a foot and the first following contact of the contralateral foot. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Cadence referred to the number of steps taken per minute during gait cycle. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Gait speed was the time taken to walk a specified distance. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Stride duration refers to the duration between successive heel contacts of the same foot. Participants were required to work on tile and carpet at their natural speed while wearing the device under study (ActiGraph) and APDM system. Raw accelerometry data collected by ActiGraph devices was processed by GaitPy to generate gait quality metrics (lumbar position). Gait metrics data was directly extracted from APDM sensors. Analysis was performed using mixed model regression analyses with device, floor type, and their interaction as fixed effects, and participant as random effect.

Double support time referred to the phase during walking when both feet were in contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Single support time referred to the time when only one limb was in contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Stance duration was defined as the duration of time the foot is in contact with the ground in a step during gait. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Swing time was defined as the time during which the foot was not in contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Stride length was defined as the distance covered when two steps were taken, one with each foot. It was measured from the heel of one foot to the heel of same foot when it came into contact with the ground. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Step duration was the period between the first contact of a foot and the first following contact of the contralateral foot. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Cadence referred to the number of steps taken per minute during gait cycle. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Gait speed was the time taken to walk a specified distance. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.

Stride duration refers to the duration between successive heel contacts of the same foot. Participants had to walk on GAITRite walkway (20 feet*3) wearing Panoramic bracelet device and APDM devices at participant's natural speed and at varied speeds. Natural speed was participant's self-chosen pace for 3 rounds. Varied speeds included participant's self-chosen slow pace ("Walk slow") and fast pace ("Walk fast") for 3 rounds. Raw accelerometry data collected by devices were processed by manufacturer's algorithm for APDM and SKDH gait algorithm for Panoramic bracelet device to generate gait metrics.