The 10-Bottle Test: Preliminary Validation Data: American Academy of Physical and Rehabilitation Medicine. 68th Annual assembly. Boston

Lynne Frances Turner-Stokes, Sowmya Shetty, A Parapuram, Ian J. Baguley

Research output: Contribution to journalPoster abstract

Abstract

Objectives: To obtain preliminary normative data as proof of conceptual design and utility of the 10-Bottle Test (10BT), a cheap and simple clinical test of upper-limb function using internationally ubiquitous hospital equipment; and to refine the methodology and equipment used. Design: Times were recorded for placement of 10 bottles (10BT), one at a time using 1 hand only, into (1) a crockery coffee mug and (2) a Styrofoam cup. Data were collected for 3 trials under each condition using alternating upper limbs. Starting order was randomized with respect to dominancy. Setting: Multicenter trial at sites in the United Kingdom and Australia. Participants: A convenience sample of 137 subjects (49 men, 88 women; age range, 16−85y) without upper-limb functional limitation, recruited from the 2 countries (94 UK, 43 Australia). Interventions: Not applicable. Main Outcome Measure: Timed observation of task. Results: The median times to place 10 bottles in a mug were 9.0 (IQR, 8.2−10.0) seconds (dominant) and 9.6 (8.7−10.8) seconds (nondominant). Equivalent times for the Styrofoam cup were 11.2 (9.9−12.3) seconds and 12.2 (10.8−13.7) seconds, respectively. Subjects showed a clear but inconsistent learning effect with repetitions. The cup task took an average of 24% longer than the mug (95% CI, 22.0%−25.5%) due to instability of the receptacle. There were significant interactions between task completion and both age and sex. Subjects over age 35 averaged 9.4% longer than younger subjects, whereas men were 11.5% slower. Conclusions: Preliminary analysis suggests that the 10BT is easy to use and shows reproducible effects. The coffee mug provided a more representative test of upper-limb dexterity than the cup, which required additional use of cognitive strategies to overcome instability. Further investigation of the tool is warranted with people with upper-limb impairment to determine the limits of normality.
Original languageEnglish
JournalArchives of Physical Medicine and Rehabilitation
DOIs
Publication statusPublished - 2007

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