The Activities-specific Balance Confidence (ABC) Scale

Powell, Leah; Myers, Anita M.

doi:10.1093/gerona/50a.1.m28

Cited by 2,337 publications

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“…Prior to testing, all amputees completed the activities-specific balance confidence (ABC) scale [10][11][12], a self-efficacy measure assessing balance confidence across 16 specific activities on an analogue scale (0-100%).…”

Section: Methodsmentioning

confidence: 99%

Balance recovery after an evoked forward fall in unilateral transtibial amputees

et al. 2010

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Section: Methodsmentioning

confidence: 99%

Balance recovery after an evoked forward fall in unilateral transtibial amputees

et al. 2010

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“…Amputees filled in two questionnaires to determine their activity level and balance confidence, respectively, the modified amputee activity score (AAS) [17,18] and the activities-specific balance confidence scale (ABC) [19][20][21]. AB only filled out the latter questionnaire.…”

Section: Methodsmentioning

confidence: 99%

Gait termination in lower limb amputees

et al. 2008

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Objective: To study the limitations in function and adjustment strategies of lower limb amputees in gait termination. Design: Observational cohort study. Setting: University Medical Centre. Participants: Unilateral transfemoral and transtibial amputees, and able-bodied control subjects. Main outcome measures: Leading limb preference, temporal variables, lower limb joint angles, ground reaction forces, and centre of pressure shift.Results: Compared to able-bodied subjects, amputees showed a decreased peak braking ground reaction force in the prosthetic limb, no anterior centre of pressure shift during leading with the prosthetic limb and an increased mediolateral centre of pressure shift. Amputees used several adjustment strategies to compensate for the limitations in function; leading limb preference for the non-affected limb, longer production of braking force in the non-affected limb, decreased gait termination velocity and more weight-bearing on the non-affected limb. Conclusion: Limitations in function and adjustment strategies were mainly similar in transfemoral and transtibial amputees. Due to the lack of active ankle function, amputees were not able to increase the braking force and to shift the centre of pressure anteriorly. Leading with the non-affected limb is favourable for adequate deceleration and balance control, but in daily life not always applicable. It is important that amputees are trained in gait termination during rehabilitation and prosthetic design should focus on a more active role of the prosthetic foot and knee. #

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“…7 Although fall-related physical morbidities are significant, arguments have been made that the psychological consequences associated with falling, such as developing a fear of falling and/or losing balance confidence, are of equal or greater concern due to their subsequent influence on reduced quality of life and self-imposed avoidance of activities. 8,9 Among the psychological consequence of falling, Miller et al 10 found balance confidence, the belief individuals have in their ability to perform daily activities without losing their balance, 11 to have a greater influence on mobility and participation in daily and social activities than fear of falling among individuals with a lower-limb amputation. Balance confidence as such is important to assess among those in this population.…”

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confidence: 99%

“…At present there are three balance confidence measures, including, the Activities-specific Balance Confidence (ABC) scale, 11 the Confidence in maintaining Balance Scale (CONFbal), 17 and the Balance Self-perceptions Test. 18 The ABC-scale, however, is by far the most widely used measure to assess balance confidence.…”

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confidence: 99%

“…19 This scale was developed to assess balance confidence in high functioning older adults. 11 It is a 16-item scale requiring respondents to self-rate their balance confidence from 0% to 100% in performing activities of daily living (see table 4 for the ABC-scale items). Averaging the ratings derives total scores, and higher scores reflect higher levels of balance confidence.…”

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confidence: 99%

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Rasch Analyses of the Activities-specific Balance Confidence Scale With Individuals 50 Years and Older With Lower-Limb Amputations

Sakakibara

Miller

Backman

2011

Archives of Physical Medicine and Rehabilitation

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Objective-To explore shortened response formats for use with the Activities-specific Balance Confidence scale and then: 1) evaluate the unidimensionality of the scale; 2) evaluate the item difficulty; 3) evaluate the scale for redundancy and content gaps; and 4) evaluate the item standard error of measurement (SEM) and internal consistency reliability among aging individuals (≥50 years) with a lower-limb amputation living in the community.Design-Secondary analysis of cross-sectional survey and chart review data.Setting-Out-patient amputee clinics, Ontario, Canada.Participants-Four hundred forty eight community living adults, at least 50 years old (mean = 68 years), who have used a prosthesis for at least 6 months for a major unilateral lower limb amputation. Three hundred twenty five (72.5%) were men. Intervention-N/aMain Outcome Measure(s)-Activities-specific Balance Confidence Scale.Results-A 5-option response format outperformed 4-and 6-option formats. Factor analyses confirmed a unidimensional scale. The distance between response options is not the same for all items on the scale, evident by the Partial Credit Model (PCM) having a better fit to the data than the Rating Scale Model. Two items, however, did not fit the PCM within statistical reason. Revising the wording of the two items may resolve the misfit, and improve the construct validity Corresponding author: Dr. William C Miller, Department of Occupational Science and Occupational Therapy, University of British Columbia, T325-2211 Wesbrook Mall, Vancouver, BC V6T 2B5, Tel work: 604-714-4108, Fax: 604-714-4168, bcmiller@telus.net. We certify that no party having a direct interest in the results of the research supporting this article has or will confer a benefit on us or on any organization with which we are associated AND, if applicable, we certify that all financial and material support for this research (eg, NIH or NHS grants) and work are clearly identified in the title page of the manuscript.The manuscript submitted does not contain information about medical device(s). CIHR Author Manuscript CIHR Author Manuscript CIHR Author Manuscriptand lower the SEM. Overall, the difficulty of the scale's items is appropriate for use with aging individuals with lower-limb amputation, and is most reliable (Cronbach ∝ = 0.94) for use with individuals with moderately low balance confidence levels.Conclusions-The ABC-scale with a simplified 5-option response format is a valid and reliable measure of balance confidence for use with individuals aging with a lower limb amputation. KeywordsAging; amputation; self-efficacy; rehabilitation; psychometrics; postural balanceFalling and the consequences of falling are important health issues for older individuals with a lower limb amputation. In Canada, the prevalence of falling among community dwelling individuals with a lower-limb amputation is reported to be as high as 52%. 1 Further, the annual incidence of falling among older adults (≥65 years) living in the community is commonly reported to be around 30% to ...

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The Activities-specific Balance Confidence (ABC) Scale

Cited by 2,337 publications

References 14 publications

Balance recovery after an evoked forward fall in unilateral transtibial amputees

Balance recovery after an evoked forward fall in unilateral transtibial amputees

Gait termination in lower limb amputees

Rasch Analyses of the Activities-specific Balance Confidence Scale With Individuals 50 Years and Older With Lower-Limb Amputations

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