Accuracy of the step test to evaluate lower limb muscle strength in community-dwelling older women

2021 ◽  
Vol 25 ◽  
pp. 133-139
Author(s):  
Jaqueline Mello Porto ◽  
Renato Campos Freire Júnior ◽  
Luciana Mendes Cangussu-Oliveira ◽  
Erika Leitner ◽  
Lara Gonçalves Freitas ◽  
...  
2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 230-230
Author(s):  
Daniela Abreu ◽  
Jaqueline Porto

Abstract The objective of the present study was to evaluate the ability of the five times sit to stand test (5TSST), grip strength (GS) and step test (ST) to detect older women with reduced lower-limb muscle strength (LLMS), and to investigate the clinical usefulness of the combination of such tests. One hundred and nineteen older women were submitted to the 5TSST, GS, ST and lower limb peak torque by an isokinetic dynamometer. The capacity of the clinical tests to detect older women with reduced LLMS was measured using the ROC curve, followed by calculation of posttest probability (PoTP). The results show that a ST score of 0.24 cm per cm of participant’s height shows the best PoTP for a positive test (72%). However, the combination of the ST and 5TSST enhances the accuracy from 48% (prevalence of weakness in the population) to 82.6% if both tests are positive, and decreases the PoTP from 48% to 11.4% if both tests are negative. The inclusion of GS provided additional benefits of small magnitude. In conclusion, the ST performed alone or in combination with 5TSST could be an alternative for clinical screening of LLMS reduction in older women. The early identification of impairment of lower-limb muscle strength in independent older adults may favor early intervention and prevention of negative outcomes such as falls and functional limitations.


2009 ◽  
Vol 24 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Yoshihiro KAI ◽  
Shin MURATA ◽  
Hiroshi OTAO ◽  
Koichi TOMINAGA ◽  
Takeshi MATSUMOTO ◽  
...  

2020 ◽  
pp. 073346482093277 ◽  
Author(s):  
Jaqueline Mello Porto ◽  
Luciana Mendes Cangussu-Oliveira ◽  
Renato Campos Freire Júnior ◽  
Flávio Tavares Vieira ◽  
Luana Letícia Capato ◽  
...  

Objective: To investigate whether lower limb muscle strength could be a risk factor for the first fall among nonfaller community-dwelling older adults. Method: Hip, knee, and ankle peak torque (PT) was measured with an isokinetic dynamometer in 101 older adults with no history of falls in the previous year. Next, the authors followed up the participants on a monthly basis by telephone contact to determine the occurrence of fall episodes over a period of 1 year. Multivariate logistic regression adjusted for confounding variables was applied to assess the relationship between falls and lower limb PT. Results: there was no association between lower limb PT and future falls ( p > .05). Conclusion: Based on these results, it is important to identify other factors that predispose older adults with no history of falls to falling for the first time, so that early and effective preventive strategies may be elaborated.


2020 ◽  
Vol 19 (5) ◽  
pp. 386
Author(s):  
Thulio Nilson Do Nascimento Pereira ◽  
Anna Myrna Jaguaribe De Lima ◽  
Jessica Do Carmo Anjos Do Monte ◽  
Leandro Augusto Da Silva Araújo ◽  
Cinthia Rodrigues De Vasconcelos ◽  
...  

The objective of this study was to evaluate the construct validation and intra-rater reproducibility of the 6-minute step test (6MST) and develop a prediction equation for the step test performance in overweight and obese individuals. A total of 35 individuals were analyzed and divided into two groups: obese/overweight and control group. The 6MST and the 6-minute walk test (6MWT) were performed on different days. An isokinetic dynamometer was used to assess the lower limb muscle strength. A moderate positive correlation between the 6MST and 6MWT performances was found in the obese/overweight group (r = 0.501; p = 0.01). Reproducibility in the obese/overweight group was excellent for both performance and cardiovascular variables (intraclass correlation coefficient (ICC)>0.8; p<0.000), with the exception of the diastolic blood pressure (DBP) immediately after, which showed very good reproducibility (ICC) = 0.79; p<0.000). The following prediction equation was developed in the obese/overweight group: number of steps climbed = 85.847 + 0.482 x (peak knee extension torque). The 6MST is a valid, reproducible and viable alternative to assess functional exercise capacity in obese and overweight young people. The results showed that the lower limb muscle strength is able to predict performance on the 6MST.Keywords: validation study, reproducibility of results, obesity, exercise test, muscle strength.


2019 ◽  
Vol 71 (3) ◽  
pp. 250-260 ◽  
Author(s):  
Mélanie Le Berre ◽  
Mélanie Morin ◽  
Hélène Corriveau ◽  
Mathieu Hamel ◽  
Sylvie Nadeau ◽  
...  

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