BACKGROUND: This study aimed to examine: 1) Swaymeter concurrent validity in discriminating between young and older adult populations; 2) Swaymeter convergent validity against a forceplate system; and 3) the immediate test-retest repeatability of postural sway measures obtained from the Swaymeter. METHODS:Twenty-nine older adults aged 71 to 83 years and 11 young adults aged 22 to 47 years had postural sway measured simultaneously with the Swaymeter and a forceplate for three repeat 30 second trials, under four conditions (floor eyes open, floor eyes closed, foam eyes open, foam eyes closed). RESULTS: Age-related differences in sway parameters across the four conditions were evident using the Swaymeter. Moderate-to-good correlations were found between Swaymeter and forceplate sway measures across conditions (r = 0.560-0.865). Good agreement between the Swaymeter and forceplate were found for anteroposterior and mediolateral sway displacement measures (average offset = 6 mm). Sway path length measures were longer for the forceplate compared to the Swaymeter (average offset = 376 mm), but these data showed good agreement following log-transformation. The Swaymeter was reliable across trials, with intraclass correlation coefficients ranging from 0.654 to 0.944. CONCLUSIONS: The Swaymeter is a reliable tool for assessing postural sway and discriminates between performance of young and older people across multiple sensory conditions.
RCT Entities:
BACKGROUND: This study aimed to examine: 1) Swaymeter concurrent validity in discriminating between young and older adult populations; 2) Swaymeter convergent validity against a forceplate system; and 3) the immediate test-retest repeatability of postural sway measures obtained from the Swaymeter. METHODS: Twenty-nine older adults aged 71 to 83 years and 11 young adults aged 22 to 47 years had postural sway measured simultaneously with the Swaymeter and a forceplate for three repeat 30 second trials, under four conditions (floor eyes open, floor eyes closed, foam eyes open, foam eyes closed). RESULTS: Age-related differences in sway parameters across the four conditions were evident using the Swaymeter. Moderate-to-good correlations were found between Swaymeter and forceplate sway measures across conditions (r = 0.560-0.865). Good agreement between the Swaymeter and forceplate were found for anteroposterior and mediolateral sway displacement measures (average offset = 6 mm). Sway path length measures were longer for the forceplate compared to the Swaymeter (average offset = 376 mm), but these data showed good agreement following log-transformation. The Swaymeter was reliable across trials, with intraclass correlation coefficients ranging from 0.654 to 0.944. CONCLUSIONS: The Swaymeter is a reliable tool for assessing postural sway and discriminates between performance of young and older people across multiple sensory conditions.
Authors: J Matt McCrary; David Goldstein; Carolina X Sandler; Benjamin K Barry; Michael Marthick; Hannah C Timmins; Tiffany Li; Lisa Horvath; Peter Grimison; Susanna B Park Journal: Support Care Cancer Date: 2019-02-12 Impact factor: 3.603
Authors: Yasmin El Hage; Fabiano Politti; Dowglas F Magalhães de Sousa; Carolina Marciela Herpich; Igor Phillip dos Santos Gloria; Cid André Fidelis de Paula Gomes; Ana Paula Amaral; Nívea Cristina de Melo; Thais Correa da Silva; Eric Edmur Camargo Arruda; Cesar Ferreira Amorim; Inaê Caroline Gadotti; Tabajara Oliveira Gonzalez; Fausto Berzin; Sandra Kalil Bussadori; Marília Barbosa Santos Garcia; Bruno Roberto Borges Barbosa; Daniela Aparecida Biasotto-Gonzalez Journal: Trials Date: 2013-10-01 Impact factor: 2.279