scholarly journals Evaluating the sit‐to‐stand transfer assistance from a smart walker in older adults with motor impairments

2020 ◽  
Vol 20 (4) ◽  
pp. 312-316
Author(s):  
Christian Werner ◽  
Milad Geravand ◽  
Péter Z Korondi ◽  
Angelika Peer ◽  
Jürgen M Bauer ◽  
...  
Keyword(s):  
Older Adults ◽  
Motor Impairments ◽  
Sit To Stand ◽  
Smart Walker

Ground Reaction Force in Sit-to-stand Reflects Lower-extremity Function Better than Timed Test in Older Adults

2011 ◽  
Vol 43 (Suppl 1) ◽  
pp. 930-931
Author(s):  
Taishi Tsuji ◽  
Tomohiro Okura ◽  
Kenji Tsunoda ◽  
Yasuhiro Mitsuishi ◽  
Naruki Kitano ◽  
...  
Keyword(s):  
Older Adults ◽  
Lower Extremity ◽  
Ground Reaction Force ◽  
Reaction Force ◽  
Lower Extremity Function ◽  
Sit To Stand ◽  
Extremity Function ◽  
Timed Test ◽  
Better Than

Acute Physiological Response to Light- and Heavy-load Power-oriented Exercise in Older Adults

2021 ◽  
Author(s):  
Carlos Rodriguez-Lopez ◽  
Julian Alcazar ◽  
Jose Losa-Reyna ◽  
JuanManuel Carmona-Torres ◽  
Aurora Maria Cruz-Santaella ◽  
...  
Keyword(s):  
Older Adults ◽  
Creatine Kinase ◽  
Resistance Training ◽  
Isometric Force ◽  
Rate Of Force Development ◽  
Heavy Load ◽  
Force Development ◽  
Sit To Stand ◽  
Light Load ◽  
Maximal Isometric Force

AbstractThis study investigated the acute responses to volume-load-matched heavy-load (80% 1RM) versus light-load (40% 1RM) power-oriented resistance training sessions in well-functioning older adults. Using a randomized cross-over design, 15 volunteers completed each condition on a leg press. Neuromuscular (maximal isometric force and rate of force development) and functional performance (power during sit-to-stand test), lactate, and muscle damage biochemistry (creatine kinase, lactate dehydrogenase and C-reactive protein serum concentration) were assessed pre- and post-exercise. Performance declines were found after heavy-load (Cohen’s d effect size (d); maximal isometric force=0.95 d; rate of force development=1.17 d; sit-to-stand power =0.38 d, all p<0.05) and light-load (maximal isometric force=0.45 d; rate of force development=0.9 d; sit-to-stand power=1.17 d, all p<0.05), while lactate concentration increased only after light-load (1.7 d, p=0.001). However, no differences were found between conditions (all p>0.05). Both conditions increased creatine kinase the day after exercise (marginal effect=0.75 d, p<0.001), but no other blood markers increased (all, p>0.05). Irrespective of the load used, power training induced non-clinically significant decreases in sit-to-stand performance, moderate declines in maximal isometric force, but pronounced decreases in the rate of force development. Furthermore, the metabolic stress and muscle damage were minor; both sessions were generally well tolerated by well-functioning older adults without previous experience in resistance training.

scholarly journals Day-to-Day Variability and Year-to-Year Reproducibility of Accelerometer-Measured Free-Living Sit-to-Stand Transitions Volume and Intensity among Community-Dwelling Older Adults

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6068
Author(s):  
Antti Löppönen ◽  
Laura Karavirta ◽  
Erja Portegijs ◽  
Kaisa Koivunen ◽  
Taina Rantanen ◽  
...  
Keyword(s):  
Older Adults ◽  
Angular Velocity ◽  
Functional Disability ◽  
Intraclass Correlation ◽  
Living Environment ◽  
Community Dwelling ◽  
Free Living ◽  
Sit To Stand ◽  
Increased Risk ◽  
Community Dwelling Older Adults

(1) Background: The purpose of this study was to evaluate the day-to-day variability and year-to-year reproducibility of an accelerometer-based algorithm for sit-to-stand (STS) transitions in a free-living environment among community-dwelling older adults. (2) Methods: Free-living thigh-worn accelerometry was recorded for three to seven days in 86 (women n = 55) community-dwelling older adults, on two occasions separated by one year, to evaluate the long-term consistency of free-living behavior. (3) Results: Year-to-year intraclass correlation coefficients (ICC) for the number of STS transitions were 0.79 (95% confidence interval, 0.70–0.86, p < 0.001), for mean angular velocity—0.81 (95% ci, 0.72–0.87, p < 0.001), and maximal angular velocity—0.73 (95% ci, 0.61–0.82, p < 0.001), respectively. Day-to-day ICCs were 0.63–0.72 for number of STS transitions (95% ci, 0.49–0.81, p < 0.001) and for mean angular velocity—0.75–0.80 (95% ci, 0.64–0.87, p < 0.001). Minimum detectable change (MDC) was 20.1 transitions/day for volume, 9.7°/s for mean intensity, and 31.7°/s for maximal intensity. (4) Conclusions: The volume and intensity of STS transitions monitored by a thigh-worn accelerometer and a sit-to-stand transitions algorithm are reproducible from day to day and year to year. The accelerometer can be used to reliably study STS transitions in free-living environments, which could add value to identifying individuals at increased risk for functional disability.

Physical Performance Predictors for Incident Dementia Among Japanese Community-Dwelling Older Adults

2019 ◽  
Vol 99 (9) ◽  
pp. 1132-1140
Author(s):  
Takehiko Doi ◽  
Kota Tsutsumimoto ◽  
Sho Nakakubo ◽  
Min-Ji Kim ◽  
Satoshi Kurita ◽  
...  
Keyword(s):  
Older Adults ◽  
Risk Assessment ◽  
Grip Strength ◽  
Physical Performance ◽  
Performance Level ◽  
Community Dwelling ◽  
Sit To Stand ◽  
Dementia Risk ◽  
Incident Dementia ◽  
Community Dwelling Older Adults

Abstract Background Evaluating physical performance could facilitate dementia risk assessment. However, findings differ regarding which type of physical performance best predicts dementia. Objective The objective of this study was to examine the association between physical performance and incidence of dementia in Japanese community-dwelling older adults. Design This was a prospective study of community-dwelling older adults. Methods Of 14,313 invited individuals who were ≥ 65 years old, 5104 agreed to participate from 2011 to 2012, and 4086 (52% women; mean age = 72.0 years) met the criteria. Baseline assessments of the following physical performance indicators were obtained: grip strength, the Five-Times Sit-to-Stand Test, and the Timed “Up & Go” Test. The physical performance level in each test was categorized as C1 (highest), C2 (middle–high), C3 (middle–low), or C4 (lowest) on the basis of sex-stratified quartile values. Incident dementia status was obtained from medical records that were updated monthly. Results During follow-up (mean duration = 42.9 months), there were 243 incident cases of dementia (5.9%). Log-rank test results indicated that a lower physical performance level constituted a significant risk factor for dementia. After adjustment for covariates, Cox proportional hazards models (reference: highest physical performance level [C1]) demonstrated that the Five-Times Sit-to-Stand Test in the group with the lowest physical performance level (hazard ratio = 1.69; 95% CI = 1.10–2.59) was significantly associated with a risk of dementia. Likewise, the Timed “Up & Go” Test in the group with the lowest physical performance level (hazard ratio = 1.54; 95% CI = 1.01–2.35) was significantly associated with a risk of dementia. However, grip strength was not significantly associated with a risk of dementia. Limitations This study was limited by the use of medical record data. Conclusions A lower mobility-related physical performance level was associated with dementia risk. Dementia risk assessment should include an adequate evaluation of physical function.

scholarly journals Associating Gait Phase and Physical Fitness with Global Cognitive Function in the Aged

2020 ◽  
Vol 17 (13) ◽  
pp. 4786
Author(s):  
Byungjoo Noh ◽  
Changhong Youm ◽  
Myeounggon Lee ◽  
Hwayoung Park
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Physical Fitness ◽  
Grip Strength ◽  
Stance Phase ◽  
Strong Dependence ◽  
Sit To Stand ◽  
Global Cognitive Function ◽  
Age Related ◽  
Type Data

This study aimed to identify classifier variables by considering both gait and physical fitness for identifying adults aged over 75 years and global cognitive function declines in older adults. The participants included 735 adults aged 65–89 years who were asked to walk at three different speeds (slower, preferred, and faster) while wearing inertial measurement units embedded in shoe-type data loggers and to perform nine physical fitness tests. The variability in the stance phase as well as the strength, balance, and functional endurance showed a strong dependence on the age being over 75 years. The cognitive function was evaluated by the Mini-Mental State Examination; a longer stance phase at a slower walking speed and decreased grip strength and five times sit-to-stand were associated with cognitive function. These findings may be useful for determining the decline in physical performance of older adults. A longer stance phase and decreased grip strength and five times sit-to-stand may be factors that help distinguish declines in cognitive function from normal age-related declines.

scholarly journals Two-Arm Randomized Pilot Intervention Trial to Decrease Sitting Time and Increase Sit-To-Stand Transitions in Working and Non-Working Older Adults

PLoS ONE ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. e0145427 ◽  
Author(s):  
Jacqueline Kerr ◽  
Michelle Takemoto ◽  
Khalisa Bolling ◽  
Andrew Atkin ◽  
Jordan Carlson ◽  
...  
Keyword(s):  
Older Adults ◽  
Sitting Time ◽  
Intervention Trial ◽  
Sit To Stand ◽  
Pilot Intervention

The importance of weak physical performance in older adults for the development of musculoskeletal pain that interferes with normal life. A prospective cohort study

2019 ◽  
Vol 19 (4) ◽  
pp. 789-796
Author(s):  
Stina Lilje ◽  
Johan Sanmartin Berglund ◽  
Peter Anderberg ◽  
Lina Palmlöf ◽  
Eva Skillgate
Keyword(s):  
Older Adults ◽  
Physical Function ◽  
Grip Strength ◽  
Physical Performance ◽  
Musculoskeletal Pain ◽  
National Study ◽  
Risk Of Falling ◽  
Normal Life ◽  
Sit To Stand ◽  
Proprioceptive Function

Abstract Background and aims There are associations between pain, comorbidity and risk of falling, and falling increases the risk of mortality in older persons, but few studies have investigated the development of pain as a result of impaired physical function. The aim of this study was to examine possible associations between weak physical performance and the development of musculoskeletal pain that interferes with normal life in a sample of older adults. The sample derived from a national, longitudinal multicenter study; the Swedish National Study on Ageing and Care; SNAC-B. Methods The participants (n = 490) were between 60 and 78 years at the baseline examinations. Three variables were chosen for the exposure physical function, from the baseline examinations; One Leg Stand, Grip strength and Sit-to-Stand. The outcome musculoskeletal pain that interferes with normal life was measured using EQ5D and SF-12 6 years later, and logistic regression was used to investigate possible associations between the exposures and the outcome. Results Maximum grip strength (Grippit) was inversely associated with musculoskeletal pain that interferes with normal life (OR 2.31; 95% CI 1.15–4.61), and One-Leg Stand and Sit-to-Stand were not associated with the development of pain (OR 1.30; 95% CI 0.64–2.64) and (OR 0.91; 95% CI 0.45–1.86), respectively. Conclusions Weak grip strength was inversely associated with the development of musculoskeletal pain that interferes with normal life in older adults. Implications Impaired proprioceptive function, strength and mobility in elderly with pain have been found in earlier research. Since pain increases the risk of falling, it is important to investigate if it may develop as a function of an impaired physical function. The results of the present study could be of importance for future prevention programs aiming to protect elderly from falling.

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