@article{ref1,
title="Movement velocity in the chair squat is associated with measures of functional capacity and cognition in elderly people at low risk of fall",
journal="PeerJ",
year="2018",
author="Balsalobre-Fernández, Carlos and Cordón, Ángel and Unquiles, Nazaret and Muñoz-García, Daniel",
volume="6",
number="",
pages="e4712-e4712",
abstract="BACKGROUND: The purpose of this study was to analyze the relationships between muscular performance consisting of a single repetition on the chair squat exercise (CSQ) and different measures of functional capacity, balance, quality of life and cognitive status in older adults. <br><br>METHODS: A total of 40 participants (22 women, 18 men; age = 72.2 ± 4.9 years) joined the investigation. Muscular performance was assessed by measuring movement velocity in the CSQ with no external load using a validated smartphone application (<i>PowerLift</i> for iOS). Functional capacity, balance, quality of life and cognitive status were evaluated using the hand-grip strength (HGS) test, the Berg-scale, the EuroQol 5D (EQ-5D) and the Mini mental state examination questionnaire (MMSE). Finally, participants were divided into two subgroups (<i>N</i> = 20) according to their velocity in the CSQ exercise. <br><br>RESULTS: Positive correlations were obtained between movement velocity in the CSQ and HGS (<i>r</i> = 0.76, <i>p</i> < 0.001), the Berg-scale (<i>r</i> = 0.65, <i>p</i> < 0.001), the EQ-5D (<i>r</i> = 0.34, <i>p</i> = 0.03) and the MMSE (<i>r</i> = 0.36, <i>p</i> = 0.02). Participants in the fastest subgroup showed very likely higher scores in the Berg-scale (ES = 1.15) and the HGS (ES = 1.79), as well as likely higher scores in the MMSE scale (ES = 0.69). <br><br>DISCUSSION: These results could have potential clinical relevance as they support the use of a time-efficient, non-fatiguing test of muscular performance (i.e., the CSQ) to evaluate functional capacity and mental cognition in older adults.<p /> <p>Language: en</p>",
language="en",
issn="2167-8359",
doi="10.7717/peerj.4712",
url="http://dx.doi.org/10.7717/peerj.4712"
}