Jingjing Wang1,2, Jin-Tao Hong2, Yun Xiang1,3, Chunhua Zhang4. 1. School of Exercise and Health, Shanghai University of Sport, Yangpu District, 650 Qing Yuan Huan Rd, Shanghai, 200438, China. 2. Shanghai Research Institute of Sports Science (Shanghai Anti-Doping Agency), Shanghai, 200030, China. 3. School of Physical Education, Hubei Engineering University, Xiaogan, 432000, Hubei, China. 4. School of Exercise and Health, Shanghai University of Sport, Yangpu District, 650 Qing Yuan Huan Rd, Shanghai, 200438, China. zch20080808@126.com.
Abstract
BACKGROUND: The 8-Foot Up and Go (8UG) test is a widely used mobility assessment. Some dual-task mobility assessments have been developed to help detect cognitive decline. AIMS: This study developed a dual-task version of 8UG test to investigate the dual-task 8UG performance and to evaluate the ability of dual-task 8UG test in detecting cognitive decline. METHODS: A total of 101 eligible community-dwelling women aged 60-74 years were grouped into the mild cognitive impairment group (MCI, n = 49) and the non-cognitive impairment group (NCI, n = 52). The 8UG tests under single-task (ST), manual dual-task (MT), and cognitive dual-task (CT) conditions were performed respectively. The dual-task cost (DTC) and the correct response rate (CRR) were calculated to quantify the dual-task interference. RESULTS: Participants spent more time in performing the 8UG test under dual-task conditions. No differences were observed between NCI and MCI groups for 8UG parameters under ST and MT conditions (p > 0.05). When executing CT, significant differences were found in the number of correct answers and CRR (p < 0.05). CRR showed the strongest ability to predict MCI with a cut-off point of 0.50 (71.2% sensitivity and 61.2% specificity). DISCUSSION: Both manual and cognitive dual-task were found to interfere with the 8UG performance. CRR with cutoff point of 0.50 could be a potential predictor of MCI in community-dwelling older women. CONCLUSIONS: The CRR of the cognitive dual-task 8UG test could be recommended as a potential predictor for the early detection of MCI in community-dwelling older women.
BACKGROUND: The 8-Foot Up and Go (8UG) test is a widely used mobility assessment. Some dual-task mobility assessments have been developed to help detect cognitive decline. AIMS: This study developed a dual-task version of 8UG test to investigate the dual-task 8UG performance and to evaluate the ability of dual-task 8UG test in detecting cognitive decline. METHODS: A total of 101 eligible community-dwelling women aged 60-74 years were grouped into the mild cognitive impairment group (MCI, n = 49) and the non-cognitive impairment group (NCI, n = 52). The 8UG tests under single-task (ST), manual dual-task (MT), and cognitive dual-task (CT) conditions were performed respectively. The dual-task cost (DTC) and the correct response rate (CRR) were calculated to quantify the dual-task interference. RESULTS: Participants spent more time in performing the 8UG test under dual-task conditions. No differences were observed between NCI and MCI groups for 8UG parameters under ST and MT conditions (p > 0.05). When executing CT, significant differences were found in the number of correct answers and CRR (p < 0.05). CRR showed the strongest ability to predict MCI with a cut-off point of 0.50 (71.2% sensitivity and 61.2% specificity). DISCUSSION: Both manual and cognitive dual-task were found to interfere with the 8UG performance. CRR with cutoff point of 0.50 could be a potential predictor of MCI in community-dwelling older women. CONCLUSIONS: The CRR of the cognitive dual-task 8UG test could be recommended as a potential predictor for the early detection of MCI in community-dwelling older women.
Authors: Kimberly J Schlesinger; Benjamin O Turner; Brian A Lopez; Michael B Miller; Jean M Carlson Journal: Neuroimage Date: 2016-09-03 Impact factor: 6.556
Authors: Manuel Montero-Odasso; Louis Bherer; Stephanie Studenski; Karen Gopaul; Afua Oteng-Amoako; Sarah Woolmore-Goodwin; Paul Stoole; Jennie Wells; Timothy Doherty; Aleksandra A Zecevic; David Galinsky; R Jane Rylett; Jeffrey Jutai; Susan Muir-Hunter; Mark Speechley; Richard Camicioli Journal: Can Geriatr J Date: 2015-09-30