Validation of a Talking Pedometer for Adults with Visual Impairment

Holbrook, Elizabeth A.; Stevens, Sandy; Kang, Minsoo; Morgan, Don W.

doi:10.1249/mss.0b013e318205e2d6

Cited by 9 publications

(11 citation statements)

References 28 publications

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“…As the prevalence of morbidity continues to proliferate in all populations, establishing time frame recommendations and variance estimates pertaining to physical activity assessment seems a necessary and useful step in developing and implementing health-related interventions. In particular, among persons with VI, the availability of adapted pedometers (Holbrook et al, 2011) and accurate knowledge of the appropriate physical activity monitoring time frame makes the delivery of an effective, population-specific health intervention more feasible. As with all studies, however, this investigation is not without limitations.…”

Section: Discussionmentioning

confidence: 99%

“…While the voice-announcement technology contained within the device makes the Centrios pedometer larger than typical spring-levered monitors, automated feedback can be announced at the touch of a button or periodically throughout the day (e.g., after every 1,000 steps or 10 min of accumulated activity time). When worn by adults with VI, the Centrios pedometer provides estimates of step-based physical activity with an acceptable degree of accuracy (< 2.7% of actual steps) when mounted at the hip opposite the user's mobility aid (Holbrook et al, 2011).…”

Section: Data Collectionmentioning

confidence: 99%

“…As pedometers with adapted technologies (e.g., "talking pedometers") become commercially available and are validated (Beets, Foley, Tindall, & Lieberman, 2007;Holbrook, Stevens, Kang, & Morgan, 2011), the potential to conduct walking Official Journal of IFAPA www.APAQ-Journal.com RESEARCH programs aimed at improving the health status of persons with VI becomes more plausible; however, before implementing goal-based walking programs that rely on pedometers to measure changes in activity patterns, stable estimates of baseline physical activity must first be obtained. While the time frame needed to capture a reliable estimate of physical activity has been established for youth and adults without VI (Kang, Bassett et al, 2009;Kim & Yun, 2009;Temple, & Stanish, 2009;Tudor-Locke et al, 2005;Vincent & Pangrazi, 2002), relatively little is known concerning physical activity patterns among individuals with VI.…”

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confidence: 99%

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Acquiring a Stable Estimate of Physical Activity in Adults With Visual Impairment

Holbrook

Kang

Morgan

2013

Adapted Physical Activity Quarterly

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As a first step toward the development of adapted physical activity (PA) programs for adults with visual impairment (VI), the purpose of this study was to determine the time frame needed to reliably estimate weekly PA in adults with VI. Thirty-three adults with VI completed 7 days of pedometer-based PA assessment. Generalizability theory analyses were conducted to quantify sources of variance within the PA estimate and determine the appropriate number of days of PA monitoring needed for the total sample and for participants with mild-to-moderate and severe VI. A single-facet, crossed design was employed including participants and days. Participants and days correspondingly accounted for 33–55% and 0–3% of the total variance in PA. While a reliable account of PA was obtained for the total sample over a 6-day period, shorter (4-day) and longer (9-day) periods were required for persons with mild-to-moderate and severe VI, respectively.

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Section: Discussionmentioning

confidence: 99%

Section: Data Collectionmentioning

confidence: 99%

mentioning

confidence: 99%

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Acquiring a Stable Estimate of Physical Activity in Adults With Visual Impairment

Holbrook

Kang

Morgan

2013

Adapted Physical Activity Quarterly

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“…Daily step activity was monitored using a Centrios talking pedometer, a springlevered device with demonstrated validity (Ͻ 3% error) when worn by individuals with visual impairments employing various types of mobility devices (such as a long cane or dog guide) or no mobility devices (Holbrook, Stevens, Kang, & Morgan, 2011). This pedometer has a talking feature that allows data to be accessed audibly, and raised buttons that tactilely guide users in scrolling through various descriptors of physical activity (for instance, steps taken, caloric expenditure, and activity time).…”

Section: Physical Activitymentioning

confidence: 99%

Development and Evaluation of the Walk for Health Program: A Physical Activity Intervention for Adults with Visual Impairments

Ackley-Holbrook

Kang

Morgan

2016

Journal of Visual Impairment & Blindness

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Background Although the pervasive comorbidity documented in adults with visual impairments may be linked to physical inactivity, little is known regarding the extent to which mobility and health status can be improved in this population. The aim of this preliminary study was to develop and implement an adaptive, community-based walking program for adults with visual impairments and to evaluate its impact on daily step activity, cardiovascular health, body composition, and lipid function. Methods During an 8-week period, 17 adults (age = 47.3 ± 12.3 years) with visual impairments were prompted at biweekly intervals (weeks 1, 3, 5) to increase their daily step activity by 1,000 steps per day and maintain these gains during weeks 2, 4, and 6. Participants were asked to sustain walking levels achieved by week 6 during the final 2 weeks of the program. Results Following the walking intervention, participants displayed a 78% increase in daily step activity (p < .01), but no improvements in cardiovascular health, body composition, or lipid function were observed. Conclusion Daily step activity was improved after completion of the walking program, but markers of health-related fitness remained unchanged. Future studies should be conducted to quantify the volume of physical activity required to improve the health status of persons with visual impairments.

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“…Data analysis revealed that the pedometers examined-Centrios Digital Talking Pedometer (hereafter, Centrios) (Orbyx Electronics, Walnut, CA) and Digiwalker SW200 (HRM USA, Warminster, PA)-were valid, although the Centrios slightly overestimated step counts (Haegele & Porretta, 2015b). An earlier study of Centrios established validity of the pedometer when mounted on the hip opposite the user's mobility device such as a cane (Holbrook, Stevens, Kang, & Morgan, 2011). Finally, a study by Lieberman, Stuart, Hand, and Robinson (2006) revealed motivational aspects of wearing the pedometers, such as achievement of specific activity goals, a better understanding of the relation between their daily steps and their individual health and fitness, a sense of greater independence with walking, and the use of walking as a mode of independent transportation.…”

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confidence: 97%

Fitness Wearables and Youths with Visual Impairments: Implications for Practice and Application

Colgan

Bopp

Starkoff

et al. 2016

Journal of Visual Impairment & Blindness

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Introduction Individuals with visual impairments are at risk for chronic health-related illnesses attributed to low physical activity and low fitness levels. This study aimed to determine device preference of three physical activity–monitoring wearables for youths with visual impairments, taking into account gender and visual impairment level, and to discern beneficial and impeding device components and suggested device changes. Methods For this cross-sectional and descriptive study, a convenience sample of 25 youths and young adult volunteers (16 males, 9 females, aged 9–22, M = 13.80, SD = 3.27) were recruited from a week-long sports camp for youths with visual impairments. Participants were assigned to wear all three wearables at once. Data was collected through demographic questionnaires and evening focus groups and was analyzed using qualitative coding software to determine beneficial and impeding aspects and suggested device changes. Results Responses varied by level of visual impairment, such as with auditory and visual contrast components, and varied slightly by gender, such as with aesthetic components. All responses for beneficial and impeding components and suggested changes fell into coded themes of access to data, comfort, display, data measured, auditory, waterproof, aesthetics, goal-setting, and music. Discussion Beneficial and impeding components helped participants suggest changes to make devices more usable, accessible, easy and enjoyable to wear, and motivating for this population. Limitations include the short device usage time for each participant, financial constraints, and the number of participants who consented. Implications for practitioners Physical activity technology can be developed that is more usable by more members of the general population and that allows more individuals to meet daily and weekly physical activity recommendations and health goals. In terms of reducing health disparities, this technology can mass-target physical activity levels in individuals with visual impairments as part of low-cost health and physical activity promotion interventions and could increase the overall quality of life of at-risk individuals.

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Validation of a Talking Pedometer for Adults with Visual Impairment

Abstract: In unfamiliar and familiar walking conditions, the Centrios pedometer accurately monitors step-based activity in adults with VI when mounted at the hip opposite the user's MA.

Cited by 9 publications

References 28 publications

Acquiring a Stable Estimate of Physical Activity in Adults With Visual Impairment

Acquiring a Stable Estimate of Physical Activity in Adults With Visual Impairment

Development and Evaluation of the Walk for Health Program: A Physical Activity Intervention for Adults with Visual Impairments

Fitness Wearables and Youths with Visual Impairments: Implications for Practice and Application

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