Trunk Impairment Scale - Adaptation and Validation in French

Trunk Impairment Scale - Adaptation and Validation in French

The objective of this project is to verify the validity and determine the clinimetric properties after translation and adaptation into French of the Trunk Impairment Scale (TIS), a scale for measuring trunk control and seated balance.

The research will be conducted in two distinct phases :

• Phase 1: Translation will follow the methodology of translation/back-translation, structural validation of the produced version, and cognitive interview, as recommended by McKown for Performance Outcome Measures.
• Phase 2: This involves the metrological study, or validity/reliability study. This phase will be conducted at a single center. It follows a cross-sectional design.

The role of the evaluators (between D2 and D3) will be divided so that the TIS assessments and those related to construct validity are carried out by three different therapists in order to maintain the evaluators' "blindness" regarding the patient's functional level.

Inclusion criteria (Phase 1):

• Patients over 18 years of age
• Patients who have had a stroke
• Full understanding of the French language
• No cognitive disorders
• No prior exposure to the TIS scale
• Covered by a social security system
• Having been informed, having agreed to participate in the study, and having signed the free and informed consent form.

Inclusion criteria (Phase 2):

• Patients aged over 18 and under 85 years
• Having had a stroke, with no time-since-onset limitation
• Able to sit for 10 seconds without hand support
• Able to provide informed consent
• With an NIHSS score between 2 and 26
• Covered by a social security system
• Having been informed, having agreed to participate in the study, and having signed the free and informed consent form

Exclusion Criteria (Phase 1):

• Insufficient command of the French language
• Inability to understand instructions
• Persons deprived of liberty (by judicial or administrative decision)
• Adults under legal protection or unable to express their consent
• Pregnant or breastfeeding women

Exclusion Criteria (Phase 2):

• Contraindication to the sitting position or to hip adduction (hip prosthesis)
• History of orthopedic or neurological disorders affecting sitting balance
• Insufficient command of the French language
• Inability to understand instructions
• Person deprived of liberty (by judicial or administrative decision)
• Adult under legal protection or unable to express consent
• Pregnant or breastfeeding woman