Commentary: The sit-to-stand muscle power test: An easy, inexpensive and portable procedure to assess muscle power in older people

2021 ◽  
pp. 111652
Author(s):  
Gabriel Fabrica ◽  
Carlo M. Biancardi
Keyword(s):  
Older People ◽  
Muscle Power ◽  
Power Test ◽  
Sit To Stand

The sit-to-stand muscle power test: An easy, inexpensive and portable procedure to assess muscle power in older people

2018 ◽  
Vol 112 ◽  
pp. 38-43 ◽  
Author(s):  
Julian Alcazar ◽  
Jose Losa-Reyna ◽  
Carlos Rodriguez-Lopez ◽  
Ana Alfaro-Acha ◽  
Leocadio Rodriguez-Mañas ◽  
...  
Keyword(s):  
Older People ◽  
Muscle Power ◽  
Power Test ◽  
Sit To Stand

Sit-to-stand muscle power test: Comparison between estimated and force plate-derived mechanical power and their association with physical function in older adults

2021 ◽  
Vol 145 ◽  
pp. 111213
Author(s):  
Ivan Baltasar-Fernandez ◽  
Julian Alcazar ◽  
Carlos Rodriguez-Lopez ◽  
José Losa-Reyna ◽  
María Alonso-Seco ◽  
...  
Keyword(s):  
Older Adults ◽  
Physical Function ◽  
Muscle Power ◽  
Force Plate ◽  
Mechanical Power ◽  
Power Test ◽  
Sit To Stand

scholarly journals ‘Fat but powerful’ paradox: association of muscle power and adiposity markers with all-cause mortality in older adults from the EXERNET multicentre study

2021 ◽  
pp. bjsports-2020-103720
Author(s):  
Julian Alcazar ◽  
David Navarrete-Villanueva ◽  
Asier Mañas ◽  
Alba Gómez-Cabello ◽  
Raquel Pedrero-Chamizo ◽  
...  
Keyword(s):  
Older Adults ◽  
Waist Circumference ◽  
Older People ◽  
Multicentre Study ◽  
Mortality Risk ◽  
Muscle Power ◽  
Smoking Status ◽  
Relative Power ◽  
Fat Percentage ◽  
All Cause Mortality

ObjectivesTo assess the influence of muscle power and adiposity on all-cause mortality risk and to evaluate the ‘fat but powerful’ (F+P) (or ‘fat but fit’) paradox in older adults.MethodsA total of 2563 older adults (65‒91 years old) from the EXERNET multicentre study were included. Adiposity (body mass index (BMI), waist circumference, body fat percentage (BF%) and fat index), allometric and relative power (sit-to-stand muscle power test) and various covariates (age, sex, hypertension, smoking status and walking and sitting times per day) were registered at baseline. All-cause mortality was recorded during a median follow-up of 8.9 years. Participants were classified into four groups: lean and powerful (L+P), F+P, lean but weak and fat and weak (F+W). Cox proportional hazard regression models and adjusted HRs were calculated.ResultsAccording to BMI and waist circumference, all-cause mortality risk was reduced in the F+P (HR=0.55 and 0.63, p=0.044 and 0.049, respectively) and L+P (HR=0.57 and 0.58, p=0.043 and 0.025, respectively) groups. According to BF%, all-cause mortality decreased in the L+P group (HR=0.53; p=0.021), and a trend for a reduction was reported in the F+P group (HR=0.57; p=0.060). According to fat index, a survival benefit was only noted in the L+P group (HR=0.50; p=0.049). Higher levels of relative power reduced all-cause mortality risk among older people (HR=0.63 and 0.53, p=0.006 and 0.011, respectively).ConclusionPowerful older people exhibited a reduced 9-year all-cause mortality regardless of BMI, waist circumference and BF%. Obesity according to fat index blunted the survival benefits of being powerful.

scholarly journals Skeletal Muscle Power Measurement in Older People: A Systematic Review of Testing Protocols and Adverse Events

2017 ◽  
Vol 73 (7) ◽  
pp. 914-924 ◽  
Author(s):  
Julian Alcazar ◽  
Amelia Guadalupe-Grau ◽  
Francisco J García-García ◽  
Ignacio Ara ◽  
Luis M Alegre
Keyword(s):  
Systematic Review ◽  
Skeletal Muscle ◽  
Adverse Events ◽  
Older People ◽  
Muscle Power ◽  
Power Measurement ◽  
Testing Protocols

Optimal frequency of whole body vibration training for improving balance and physical performance in the older people with chronic stroke: A randomized controlled trial

2021 ◽  
pp. 026921552110505
Author(s):  
Ning Wei ◽  
Mengying Cai
Keyword(s):  
Older People ◽  
Physical Performance ◽  
High Frequency ◽  
Low Frequency ◽  
Chronic Stroke ◽  
Whole Body ◽  
Timed Up And Go ◽  
Stand Test ◽  
Sit To Stand ◽  
Frequency Group

Objective To explore the optimal frequency of whole-body vibration training for improving the balance and physical performance in older people with chronic stroke. Design a single-blind randomized controlled trial. Setting Two rehabilitation units in the Wuhan Brain Hospital in China. Participants A total of 78 seniors with chronic stroke. Interventions Low-frequency group (13 Hz), high-frequency group (26 Hz), and zero-frequency group (Standing on the vibration platform with 0 Hz) for 10 sessions of side-alternating WBV training. Main measures The timed-up-and-go test, five-repetition sit-to-stand test, 10-metre walking test, and Berg balance scale were assessed pre- and post-intervention. Results Significant time × group interaction effects in five-repetition sit-to-stand test (p = 0.014) and timed-up-and-go test at self-preferred speed (p = 0.028) were observed. The high-frequency group outperformed the zero-frequency group in both five-repetition sit-to-stand test (p = 0.039) and timed-up-and-go test at self-preferred speed (p = 0.024) after 10-sessions training. The low-frequency group displayed only a significant improvement in five-repetition sit-to-stand test after training (p = 0.028). No significant within- or between-group changes were observed in the Berg balance scale and walking speed (p > 0.05). No significant group-difference were found between low-frequency and high-frequency groups. No adverse events were reported during study. Conclusions Compared with 13 Hz, 26 Hz had no more benefits on balance and physical performance in older people with chronic stroke.

Sit‐to‐stand activity to improve mobility in older people: A scoping review

2020 ◽  
Vol 15 (3) ◽  
Author(s):  
Uirá Duarte Wisnesky ◽  
Joanne Olson ◽  
Pauline Paul ◽  
Sherry Dahlke ◽  
Susan E. Slaughter ◽  
...  
Keyword(s):  
Older People ◽  
Scoping Review ◽  
Sit To Stand

scholarly journals Instrumented Analysis of the Sit-to-Stand Movement for Geriatric Screening: A Systematic Review

2020 ◽  
Vol 7 (4) ◽  
pp. 139
Author(s):  
Brajesh Shukla ◽  
Jennifer Bassement ◽  
Vivek Vijay ◽  
Sandeep Yadav ◽  
David Hewson
Keyword(s):  
Systematic Review ◽  
At Risk ◽  
Older People ◽  
Search Strategy ◽  
Risk Of Falling ◽  
Sit To Stand ◽  
Risk Of Falls ◽  
Geriatric Screening ◽  
Meta Analyses ◽  
Future Work

The Sit-to-Stand (STS) is a widely used test of physical function to screen older people at risk of falls and frailty and is also one of the most important components of standard screening for sarcopenia. There have been many recent studies in which instrumented versions of the STS (iSTS) have been developed to provide additional parameters that could improve the accuracy of the STS test. This systematic review aimed to identify whether an iSTS is a viable alternative to a standard STS to identify older people at risk of falling, frailty, and sarcopenia. A total of 856 articles were found using the search strategy developed, with 12 articles retained in the review after screening based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Six studies evaluated the iSTS in fallers, five studies in frailty and only one study in both fallers and frailty. The results showed that power and velocity parameters extracted from an iSTS have the potential to improve the accuracy of screening when compared to a standard STS. Future work should focus on standardizing the segmentation of the STS into phases to enable comparison between studies and to develop devices integrated into the chair used for the test to improve usability.

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