MUSCLE STRENGTH AS A PREDICTOR OF GAIT VARIABILITY AFTER TWO YEARS IN COMMUNITY-LIVING OLDER ADULTS

2019 ◽  
pp. 1-7
Author(s):  
B. Bogen ◽  
R. Moe-Nilssen ◽  
M.K. Aaslund ◽  
A.H. Ranhoff
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Inertial Sensors ◽  
Cognitive Task ◽  
Knee Extension ◽  
Gait Variability ◽  
Community Dwelling ◽  
Uneven Surface ◽  
Fast Speed ◽  
Z Scores

Background: Stride-to-stride fluctuations, or gait variability, can be captured easily using body worn inertial sensors. Previously, sensor-measured gait variability has been found to be associated with fall risk and central nervous changes. However, further research is needed to clarify the clinical relevance of this method. Objectives: In this study, we look at how gait variability is associated with muscle strength, measured two years earlier. Design, setting and participants: This is study of longitudinal associations. Participants were community-dwelling volunteers between 70-81 years. Measurements: Participants were tested while walking with a single sensor at their lower back, and they walked back and forth over a distance of 6.5 meters under four conditions: at preferred speed, at fast speed, with an added cognitive task, and while walking across an uneven surface. Gait variability in the anteroposterior (AP), mediolateral (ML) and vertical (V) directions was identified. A muscle strength score was composed by transforming hand grip strength, isometric knee extension strength and the 30 second chair rise-test to z-scores and adding them. Results: 56 individuals were analysed (mean age at baseline 75.8 (SD 3.43), 60 percent women). In a backwards regression method using age, gender and baseline walking speed as covariates, muscle strength predicted gait variability after two years for AP variability during preferred speed (Beta= .314, p=.025) and uneven surface walking (Beta=.326, p=.018). Further, muscle strength was associated with ML variability during preferred speed (Beta=.364, p=.048) and fast speed (Beta=.419, p=.042), and V variability during preferred speed (Beta=.402, p=.002), fast speed (Beta=.394, p=.004) and uneven surface walking (Beta=.369, p=.004). Conclusions: Sensor-measured gait variability tended to be associated with muscle strength measured two years earlier. This finding could emphasize the relevance of this relatively novel measure of gait in older adults for both research and clinical practice.

scholarly journals Effectiveness of Community-Delivered Functional Power Training Program for Frail and Pre-frail Community-Dwelling Older Adults: a Randomized Controlled Study

2021 ◽  
Author(s):  
Nien Xiang Tou ◽  
Shiou-Liang Wee ◽  
Wei Ting Seah ◽  
Daniella Hui Min Ng ◽  
Benedict Wei Jun Pang ◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Controlled Trial ◽  
Community Dwelling ◽  
Controlled Study ◽  
Power Training ◽  
Frail Older Adults ◽  
Frailty Status ◽  
Randomized Controlled ◽  
Community Dwelling Older Adults

AbstractTranslation of community-based functional training for older adults to reduce frailty is still lacking. We evaluated the effectiveness and implementation of a community-delivered group-based functional power training (FPT) program for frail older adults within their neighborhoods. A two-arm, multicenter assessor-blind stratified randomized controlled trial was conducted at four local senior activity centers in Singapore. Sixty-one community-dwelling older adults with low handgrip strength were randomized to intervention (IG) or control (CG) group. The IG underwent the FPT program (power and balance exercises using simple equipment) delivered by a community service provider. The 12-week program comprised 2 × 60 min sessions/week. CG continued usual activities at the centers. Functional performance, muscle strength, and frailty status were assessed at baseline and 3 months. Program implementation was evaluated using RE-AIM framework. The program was halted due to Coronavirus Disease 2019-related suspension of senior center activities. Results are reported from four centers, which completed the program. IG showed significantly greater improvement in the Short Physical Performance Battery test as compared to CG (p = 0.047). No effects were found for timed up and go test performance, muscle strength, and frailty status. The community program exhibited good reach, effectiveness, adoption, and implementation. Our study demonstrated that FPT was associated with greater improvement in physical function in pre-frail/frail participants as compared to exercise activities offered at local senior activity centers. It is a feasible intervention that can be successfully implemented for frail older adults in their neighborhoods. Trial registration ClinicalTrials.gov, NCT04438876. Registered 19 June 2020–retrospectively registered.

scholarly journals Long-term participation in community group exercise improves lower extremity muscle strength and delays age-related declines in walking speed and physical function in older adults

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Chisato Hayashi ◽  
Soshiro Ogata ◽  
Tadashi Okano ◽  
Hiromitsu Toyoda ◽  
Sonoe Mashino
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Physical Exercise ◽  
Lower Extremity ◽  
Physical Function ◽  
Community Dwelling ◽  
Group Exercise ◽  
Community Based ◽  
Lower Extremity Muscle

Abstract Background The effects of group exercise on the physical function of community-dwelling older adults remain unclear. The changes in lower extremity muscle strength, timed up and go (TUG) time, and the motor fitness scale (MFS), over time, among older adults who expressed a willingness to participate in community-based physical exercise groups, were determined using multilevel modelling. Methods We analyzed data of 2407 older adults between April 2010 and December 2019 from the registry of physical tests of community-based physical exercise groups. We conducted a retrospective cohort study to assess the effect of physical exercise on lower extremity muscle strength, TUG time, and MFS scores. The durations of the exercises were evaluated by frequency of physical test’s participate. Results A deterioration in lower extremity muscle strength was found in the short-term participant group only. However, in the mid-term and long-term participation groups, lower extremity muscle strength showed a trend of improvement. The TUG time and the MFS score were negatively correlated with increasing age in both groups divided by the duration of participation. However, there was a slower rate of deterioration in the long-term participation group. Discussion Lower extremity muscle strength, TUG time, and MFS scores decline with increasing age and there were differences in the slope of deterioration that depended on the duration of participation in community-based group exercise. Conclusion Participation in group exercise improved lower extremity muscle strength, TUG time, and MFS scores of older adults living in a community. The positive effects of group exercise were dependent on long-term participation.

scholarly journals Impact of Malnutrition Status on Muscle Parameter Changes over a 5-Year Follow-Up of Community-Dwelling Older Adults from the SarcoPhAge Cohort

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 407
Author(s):  
Laetitia Lengelé ◽  
Olivier Bruyère ◽  
Charlotte Beaudart ◽  
Jean-Yves Reginster ◽  
Médéa Locquet
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Physical Performance ◽  
Community Dwelling ◽  
Timed Up And Go ◽  
P Values ◽  
Student’S T ◽  
The Impact ◽  
Community Dwelling Older Adults

This study aimed to assess the impact of malnutrition on the 5-year evolution of physical performance, muscle mass and muscle strength in participants from the SarcoPhAge cohort, consisting of community-dwelling older adults. The malnutrition status was assessed at baseline (T0) according to the “Global Leadership Initiatives on Malnutrition” (GLIM) criteria, and the muscle parameters were evaluated both at T0 and after five years of follow-up (T5). Lean mass, muscle strength and physical performance were assessed using dual X-ray absorptiometry, handgrip dynamometry, the short physical performance battery test and the timed up and go test, respectively. Differences in muscle outcomes according to nutritional status were tested using Student’s t-test. The association between malnutrition and the relative 5-year change in the muscle parameters was tested using multiple linear regressions adjusted for several covariates. A total of 411 participants (mean age of 72.3 ± 6.1 years, 56% women) were included. Of them, 96 individuals (23%) were diagnosed with malnutrition at baseline. Their muscle parameters were significantly lower than those of the well-nourished patients both at baseline and after five years of follow-up (all p-values < 0.05), except for muscle strength in women at T5, which was not significantly lower in the presence of malnutrition. However, the 5-year changes in muscle parameters of malnourished individuals were not significantly different than those of well-nourished individuals (all p-values > 0.05).

scholarly journals Knee Instability Assessment Model During Walking for Community-Dwelling Older Adults Using Inertial Sensors

2021 ◽  
Vol 45 (4) ◽  
pp. 251-258
Author(s):  
Emi ANZAI ◽  
Haruna ASANO ◽  
Kanako NAKAJIMA ◽  
Miyuki KODAMA ◽  
Yoshiyuki KOBAYASHI ◽  
...  
Keyword(s):  
Older Adults ◽  
Inertial Sensors ◽  
Community Dwelling ◽  
Assessment Model ◽  
Knee Instability ◽  
Community Dwelling Older Adults

scholarly journals Prevalence of sarcopenia in community-dwelling older adults using the definition of the European Working Group on Sarcopenia in Older People 2: findings from the Korean Frailty and Aging Cohort Study

2019 ◽  
Vol 48 (6) ◽  
pp. 910-916 ◽  
Author(s):  
Miji Kim ◽  
Chang Won Won
Keyword(s):  
Older Adults ◽  
Cohort Study ◽  
Muscle Strength ◽  
Older People ◽  
Muscle Mass ◽  
Working Group ◽  
Community Dwelling ◽  
European Working ◽  
Definition Of ◽  
Community Dwelling Older Adults

Abstract Background in October 2018, the European Working Group on Sarcopenia in Older People 2 (EWGSOP2) updated their original definition of sarcopenia to reflect the scientific and clinical evidence that has accumulated over the last decade. Objective to determine the prevalence of sarcopenia in a large group of community-dwelling older adults using the EWGSOP2 definition and algorithm. Design a cross-sectional study. Setting the nationwide Korean Frailty and Aging Cohort Study (KFACS). Subjects a total of 2,099 ambulatory community-dwelling older adults, aged 70–84 years (mean age, 75.9 ± 4.0 years; 49.8% women) who were enrolled in the KFACS. Methods physical function was assessed by handgrip strength, usual gait speed, the five-times-sit-to-stand test, the timed up-and-go test, and the Short Physical Performance Battery. Appendicular skeletal muscle mass (ASM) was measured by dual-energy X-ray absorptiometry. Results according to the criteria of the EWGSOP2, the sarcopenia indicators of combined low muscle strength and low muscle quantity were present in 4.6–14.5% of men and 6.7–14.4% of women. The severe sarcopenia indicators of combined low muscle strength, low muscle quantity and low physical performance were present in 0.3–2.2% of men and 0.2–6.2% of women. Using the clinical algorithm with SARC-F as a screening tool, the prevalence of probable sarcopenia (2.2%), confirmed sarcopenia (1.4%) and severe sarcopenia (0.8%) was low. Conclusions the prevalence of sarcopenia among community-dwelling older individuals varied depending on which components of the revised EWGSOP2 definition were used, such as the tools used to measure muscle strength and the ASM indicators for low muscle mass.

scholarly journals QUADRICEPS STRENGTH IS ASSOCIATED WITH COGNITION IN OLDER ADULTS WITH CHRONIC STROKE

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S655-S656
Author(s):  
Kimberly Bennett ◽  
Rachel A Crockett ◽  
Lisanne F ten Brinke ◽  
Jennifer C Davis ◽  
Teresa Liu-Ambrose
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Quadriceps Strength ◽  
Chronic Stroke ◽  
Community Dwelling ◽  
Total Variance ◽  
Disease Assessment ◽  
Lower Extremity Muscle ◽  
History Of ◽  
Variance Explained

Abstract Individuals who have suffered a stroke are at risk for developing cognitive impairment and dementia. Thus, it is important to identify modifiable risk factor for cognitive decline in this population. Among older adults without a history of stroke, greater muscle strength is associated with better cognitive function. Whether this relationship also exist in older adults with a history of stroke is not known. Thus, we aimed to examine whether cognition, as measured by both the Montreal Cognitive Assessment (MoCA) and the 13-item Alzheimer’s Disease Assessment Scale-Cognitive (ADAS-Cog 13), is associated with lower extremity muscle strength in adults with chronic stroke (&gt; 1 year post stroke). Ninety-one community-dwelling adults, aged 55 years and older, with chronic stroke were included in this analysis. Isometric strength of the quadriceps was measured bilaterally in kilograms. Two linear regression models were constructed to determine the independent association of quadriceps strength (mean kilograms of both legs) with: 1) MoCA; and 2) ADAS-Cog 13, after controlling for age, sex, and mood. Mean quadriceps strength was independently associated with both MoCA and ADAS-Cog scores, after accounting for age, sex, and mood. Specifically, quadriceps strength explained an additional 5.6% of the variable in MoCA scores; total variance explained by the model was 12.0%. For ADAS-Cog 13, quadriceps strength explained an additional 5.4% of the variance; total variance explained by the model was 16.5%. Our current cross-sectional results suggest that the maintenance of muscle strength may be important for cognitive health in older adults who have suffered a stroke.

scholarly journals Association of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) with Muscle Strength in Community-Dwelling Elderly with Knee Osteoarthritis

2020 ◽  
Vol 17 (7) ◽  
pp. 2260 ◽  
Author(s):  
Mi-Ji Kim ◽  
Byeong-Hun Kang ◽  
Soo-Hyun Park ◽  
Bokyoung Kim ◽  
Gyeong-Ye Lee ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Grip Strength ◽  
Functional Limitation ◽  
Peak Torque ◽  
Knee Extension ◽  
Community Dwelling ◽  
Nutrition Status ◽  
Womac Pain ◽  
Womac Function

Purpose: The purpose of this study was to evaluate the correlation between muscle strength and knee symptoms (pain, stiffness, and functional limitation) regardless of the presence of radiologic knee osteoarthritis (RKOA) in community-dwelling elderly. Patients and methods: This cross-sectional study used data from the Namgaram-2 cohort. The Namgaram-2 cohort consisted of participants living in three rural communities. Such participants were included for studies on activity limitation due to age-related musculoskeletal disorders including knee osteoarthritis, osteoporosis, and sarcopenia. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), a health assessment tool for patients with arthritis in lower extremities, was used to assess health-related quality of life (HRQOL). Muscle strengths were measured by knee strength (by using the isokinetic dynamometer) and hand grip strength. Results: The WOMAC pain of Kallgren–Lawrence (K/L) grade < 2 was correlated with age, grip strength, nutrition status, and knee extension 180 peak torque. The WOMAC pain of K/L grade ≥ 2 was correlated with age, nutrition status, and knee extension 60 peak torque. The WOMAC stiffness of K/L grade < 2 was correlated with having a spouse, nutrition status, and knee extension 60 peak torque. The WOMAC stiffness of K/L grade ≥ 2 was correlated with knee extension 60 peak torque. The WOMAC function of K/L grade < 2 was correlated with age, grip strength, osteoporosis, nutrition status, and knee extension 180 peak torque. The WOMAC function of K/L grade ≥ 2 was correlated with age, nutrition status, and knee extension 60 peak torque. Conclusion: Muscle strength as measured by grip strength and knee extension was statistically significantly correlated with the WOMAC scores in patients with knee symptoms regardless of whether radiologic signs of knee osteoarthritis were observed.

scholarly journals Nutritional Intervention to Prevent the Functional Decline in Community-Dwelling Older Adults: A Systematic Review

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2820
Author(s):  
Julie Mareschal ◽  
Laurence Genton ◽  
Tinh-Hai Collet ◽  
Christophe Graf
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Nutritional Intervention ◽  
Community Dwelling ◽  
Health Concern ◽  
The Impact ◽  
Community Dwelling Older Adults

Aging is a global public health concern. From the age of 50, muscle mass, muscle strength and physical performance tend to decline. Sarcopenia and frailty are frequent in community-dwelling older adults and are associated with negative outcomes such as physical disability and mortality. Therefore, the identification of therapeutic strategies to prevent and fight sarcopenia and frailty is of great interest. This systematic review aims to summarize the impact of nutritional interventions alone or combined with other treatment(s) in older community-dwelling adults on (1) the three indicators of sarcopenia, i.e., muscle mass, muscle strength and physical performance; and (2) the hospitalization and readmission rates. The literature search was performed on Medline and included studies published between January 2010 and June 2020. We included randomized controlled trials of nutritional intervention alone or combined with other treatment(s) in community-living subjects aged 65 or older. In total, 28 articles were retained in the final analysis. This systematic review highlights the importance of a multimodal approach, including at least a combined nutritional and exercise intervention, to improve muscle mass, muscle strength and physical performance, in community-dwelling older adults but especially in frail and sarcopenic subjects. Regarding hospitalization and readmission rate, data were limited and inconclusive. Future studies should continue to investigate the effects of such interventions in this population.

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