TY - JOUR
T1 - The Rett Syndrome Gross Motor Scale - Dutch Version (RSGMS-NL) Can Reliably Assess Gross Motor Skills in Dutch Individuals with Rett Syndrome
AU - Borst, Hanneke
AU - Weeda, Josianne
AU - Downs, Jennyn
AU - Curfs, Leopold
AU - de Bie, Rob
N1 - Funding Information:
The authors would like to express their gratitude to the individuals and their families that participated in our study; to Kim van Dintel and Tina Oomes for accurately translating the RSGMS; to the physical therapists Jan Kok, Martine Evers and Lara Sijtema for their constructive input on the pre-test version; to Remonda Algra, who enthusiastically performed the assessment of 17 videos for the intra-rater reliability twice; to the 27 physical therapists within the Dutch network ‘Rett Syndrome & Physical Therapy’ for gladly offering their time to administer the RSGMS-NL; and last but not least, to the board of the Dutch Rett Syndrome Association (NRSV) and especially Mariëlle van den Berg and Alja van Maanen–Bezemer for their amazing support and efforts in recruiting participants among the members of the NRSV.
Publisher Copyright:
© 2021 The Author(s). Published with license by Taylor & Francis Group, LLC.
PY - 2022/2/17
Y1 - 2022/2/17
N2 - Aim The Rett Syndrome Gross Motor Scale (RSGMS) is an observational measurement, assessing gross motor skills in individuals with Rett syndrome. A Dutch version is lacking. The current study aims to translate and cross-culturally adapt the original RSMGS to Dutch and assess its inter-rater and intra-rater reliability. Design Translation and cross-cultural adaptation were performed in concordance with internationally accepted guidelines. A pretest was performed, and expert validation was assured. Video data of three girls with Rett syndrome was independently assessed by 27 physiotherapists via an online webinar to measure inter-rater reliability. Additionally, videos of 17 individuals with Rett syndrome were scored twice by two raters to assess intra-rater reliability. The reliability of the total score, the three subscale scores and the new items were analyzed using Intraclass Correlation Coefficients (ICC). Results Good comprehensibility and expert validation of the RSMGS-NL was achieved, and four items were added to the original scale. Inter-rater reliability for the total score was excellent (ICC 0.97, 95% CI 0.89-0.99), and good to perfect inter-rater reliability for the three subscales; Sitting, Standing & walking and Challenge was found (ICC values 1.0 (95% CI 0), 0.98 (95% CI 0.91-0.99) and 0.82 (95% CI 0.93-0.99) respectively). The intra-rater reliability was excellent for the total test score (ICC 0.98, 95% CI 0.97-0.99) and good to excellent for the subscale scores (ICC values 0.87 (95% CI 0.75-0.94), 0.99 (95% CI 0.98-1.0) and 0.97 (95% CI 0.95-0.99) respectively). The four new items (Standing to sitting, walking down a slope, ascending the stairs, descending the stairs) showed good to excellent intra-rater reliability. Conclusion The RSGMS-NL is a reliable measure of gross motor skills in Dutch individuals with Rett syndrome.
AB - Aim The Rett Syndrome Gross Motor Scale (RSGMS) is an observational measurement, assessing gross motor skills in individuals with Rett syndrome. A Dutch version is lacking. The current study aims to translate and cross-culturally adapt the original RSMGS to Dutch and assess its inter-rater and intra-rater reliability. Design Translation and cross-cultural adaptation were performed in concordance with internationally accepted guidelines. A pretest was performed, and expert validation was assured. Video data of three girls with Rett syndrome was independently assessed by 27 physiotherapists via an online webinar to measure inter-rater reliability. Additionally, videos of 17 individuals with Rett syndrome were scored twice by two raters to assess intra-rater reliability. The reliability of the total score, the three subscale scores and the new items were analyzed using Intraclass Correlation Coefficients (ICC). Results Good comprehensibility and expert validation of the RSMGS-NL was achieved, and four items were added to the original scale. Inter-rater reliability for the total score was excellent (ICC 0.97, 95% CI 0.89-0.99), and good to perfect inter-rater reliability for the three subscales; Sitting, Standing & walking and Challenge was found (ICC values 1.0 (95% CI 0), 0.98 (95% CI 0.91-0.99) and 0.82 (95% CI 0.93-0.99) respectively). The intra-rater reliability was excellent for the total test score (ICC 0.98, 95% CI 0.97-0.99) and good to excellent for the subscale scores (ICC values 0.87 (95% CI 0.75-0.94), 0.99 (95% CI 0.98-1.0) and 0.97 (95% CI 0.95-0.99) respectively). The four new items (Standing to sitting, walking down a slope, ascending the stairs, descending the stairs) showed good to excellent intra-rater reliability. Conclusion The RSGMS-NL is a reliable measure of gross motor skills in Dutch individuals with Rett syndrome.
KW - Rett syndrome
KW - motor skills
KW - validation studies
KW - reproducibility of results
KW - RELIABILITY
U2 - 10.1080/17518423.2021.1960920
DO - 10.1080/17518423.2021.1960920
M3 - Article
C2 - 34346837
SN - 1751-8423
VL - 25
SP - 133
EP - 139
JO - Developmental Neurorehabilitation
JF - Developmental Neurorehabilitation
IS - 2
ER -