Description and psychometric properties of a prototype to test tactile acuity in the neck

Olthof, Nick; Harvie, Daniel S.; Henderson, C; Thompson, B; Sharp, Robert; Craig-Ward, Lauren; Weermeijer, Jeroen; Sterling, Michele; Moseley, G. Lorimer; Coppieters, Michel W.

doi:10.1016/j.msksp.2020.102259

Cited by 3 publications

(6 citation statements)

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“…The ICC (2.1) values for TPDT appear comparable to previous research, although results vary [33,43,48,60,61]. Compared to the prototype, reliability appears improved with the new generation iTAD despite previous values representing intra-rater reliability [47].…”

Section: Inter-rater Reliabilitysupporting

confidence: 78%

“…Accuracy scores (i.e., percentage correct) for each test, and the overall score (i.e., mean of both test), were calculated with higher scores indicating better tactile acuity. For a full description of the iTAD prototype and its assessment procedures, see elsewhere [47].…”

Section: Itad Assessment Itad Prototypementioning

confidence: 99%

“…As stimulus administration is automated and does not require synchronicity between locations, the iTAD may overcome some complications associated with TPDT. Despite some initial design issues, the iTAD prototype has shown comparable intra-rater reliability to existing tests [47], suggesting prospective utility. In this manuscript, we report two experiments that investigate the clinimetric properties of an updated version of the iTAD.…”

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

“…One recently developed tool designed to assess tactile acuity at the neck is the 'Imprint Tactile Acuity Device' (iTAD) [47]. The iTAD is a semi-automated device that uses single and successive vibrotactile stimuli to quantify absolute and relative tactile localisation performance (for details see elsewhere [47]). As stimulus administration is automated and does not require synchronicity between locations, the iTAD may overcome some complications associated with TPDT.…”

Section: Introductionmentioning

confidence: 99%

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Peer Review #1 of "Modernising tactile acuity assessment; clinimetrics of semi-automated tests and effects of age, sex and anthropometry on performance (v0.1)"

Adamczyk¹

2021

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Section: Inter-rater Reliabilitysupporting

confidence: 78%

Section: Itad Assessment Itad Prototypementioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Peer Review #1 of "Modernising tactile acuity assessment; clinimetrics of semi-automated tests and effects of age, sex and anthropometry on performance (v0.1)"

Adamczyk¹

2021

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The iSTOPP study: Protocol for a proof-of-concept randomised clinical trial of sensory discrimination training in people with persistent neck pain

Harvie

Olthof

Hams

et al. 2021

Contemporary Clinical Trials Communications

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Modernising tactile acuity assessment; clinimetrics of semi-automated tests and effects of age, sex and anthropometry on performance

Olthof

Coppieters

Moseley

et al. 2021

PeerJ

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Background Reduced tactile acuity has been observed in several chronic pain conditions and has been proposed as a clinical indicator of somatosensory impairments related to the condition. As some interventions targeting these impairments have resulted in pain reduction, assessing tactile acuity may have significant clinical potential. While two-point discrimination threshold (TPDT) is a popular method of assessing tactile acuity, large measurement error has been observed (impeding responsiveness) and its validity has been questioned. The recently developed semi-automated ‘imprint Tactile Acuity Device’ (iTAD) may improve tactile acuity assessment, but clinimetric properties of its scores (accuracy score, response time and rate correct score) need further examination. Aims Experiment 1: To determine inter-rater reliability and measurement error of TPDT and iTAD assessments. Experiment 2: To determine internal consistencies and floor or ceiling effects of iTAD scores, and investigate effects of age, sex, and anthropometry on performance. Methods Experiment 1: To assess inter-rater reliability (ICC(2,1)) and measurement error (coefficient of variation (CoV)), three assessors each performed TPDT and iTAD assessments at the neck in forty healthy participants. Experiment 2: To assess internal consistency (ICC(2,k)) and floor or ceiling effects (skewness z-scores), one hundred healthy participants performed the iTAD’s localisation and orientation tests. Balanced for sex, participants were equally divided over five age brackets (18–30, 31–40, 41–50, 51–60 and 61–70). Age, sex, body mass index (BMI) and neck surface area were assessed to examine their direct (using multiple linear regression analysis) and indirect (using sequential mediation analysis) relationship with iTAD scores. Results Mean ICC(2,1) was moderate for TPDT (0.70) and moderate-to-good for the various iTAD scores (0.65–0.86). The CoV was 25.3% for TPDT and ranged from 6.1% to 16.5% for iTAD scores. Internal consistency was high for both iTAD accuracy scores (ICC(2,6) = 0.84; ICC(2,4) = 0.86). No overt floor or ceiling effects were detected (all skewness z-scores < 3.29). Accuracy scores were only directly related to age (decreasing with increasing age) and sex (higher for men). Discussion Although reliability was similar, iTAD scores demonstrated less measurement error than TPDT indicating a potential for better responsiveness to treatment effects. Further, unlike previously reported for TPDT, iTAD scores appeared independent of anthropometry, which simplifies interpretation. Additionally, the iTAD assesses multiple aspects of tactile processing which may provide a more comprehensive evaluation of tactile acuity. Taken together, the iTAD shows promise in measuring tactile acuity, but patient studies are needed to verify clinical relevance.

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Description and psychometric properties of a prototype to test tactile acuity in the neck

Cited by 3 publications

References 45 publications

Peer Review #1 of "Modernising tactile acuity assessment; clinimetrics of semi-automated tests and effects of age, sex and anthropometry on performance (v0.1)"

Peer Review #1 of "Modernising tactile acuity assessment; clinimetrics of semi-automated tests and effects of age, sex and anthropometry on performance (v0.1)"

The iSTOPP study: Protocol for a proof-of-concept randomised clinical trial of sensory discrimination training in people with persistent neck pain

Modernising tactile acuity assessment; clinimetrics of semi-automated tests and effects of age, sex and anthropometry on performance

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