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Inter-Rater Reliability, Concurrent Validity and Sensitivity of Current Methods to Assess Trunk Function in Boccia Players with Cerebral Palsy

Sport Research Centre, Department of Sport Sciences, Miguel Hernández University, 03202 Elche, Spain
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Brain Sci. 2020, 10(3), 130; https://doi.org/10.3390/brainsci10030130
Received: 31 January 2020 / Revised: 23 February 2020 / Accepted: 25 February 2020 / Published: 26 February 2020
(This article belongs to the Section Developmental Neuroscience)
Trunk function is a core factor to allocate Boccia players with cerebral palsy in BC1 and BC2 sport classes, according to the Boccia International Sports Federation (BISFed). However, the appropriateness of the current test to assess trunk function has never been studied to determine its reliability, validity and sensitivity to discriminate between different levels of impairment. Thirty-six players (BC1 = 13 and BC2 = 23) took part in this study. Trunk control was assessed through the BISFed trunk function scale (TFS) and a posturographic test battery consisting of two static and three dynamic tasks. The inter-rater reliability for the BISFed TFS was set at 94.44% of agreement. Moderate-to-high correlations were obtained between posturographic tasks (0.39 < r < 0.96; p < 0.05–0.01), while the BISFed TFS only correlated with two of the dynamic tasks and the overall dynamic score (−0.38 < r < −0.51; p < 0.05). The BISFed TFS was not able to discriminate between sport classes, whereas the static posturographic task did so (p = 0.004). Even though the current BISFed TFS presented good inter-rater reliability, it does not seem to have enough sensitivity to discriminate between BC1 and BC2. Although the static posturographic tasks were able to discriminate between sports classes, it seems necessary to develop new field tests assessing participants’ trunk stabilization abilities. View Full-Text
Keywords: Paralympics; para-sport; classification; brain impairment; sitting balance; trunk control Paralympics; para-sport; classification; brain impairment; sitting balance; trunk control
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Roldan, A.; Barbado, D.; Vera-Garcia, F.J.; Sarabia, J.M.; Reina, R. Inter-Rater Reliability, Concurrent Validity and Sensitivity of Current Methods to Assess Trunk Function in Boccia Players with Cerebral Palsy. Brain Sci. 2020, 10, 130.

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