scholarly journals 31 Physical Activity, Muscle Strength and Quantity: Preliminary Findings From the Mass_Lifecourse Cohort

2021 ◽  
Vol 50 (Supplement_1) ◽  
pp. i7-i11
Author(s):  
K J Bowden-Brown ◽  
J C Murray ◽  
C Hurst ◽  
A Granic ◽  
A A Sayer ◽  
...  
Keyword(s):  
Physical Activity ◽  
Muscle Strength ◽  
Physical Performance ◽  
X Ray ◽  
Activity Peak ◽  
Age Related ◽  
Key Factor ◽  
Reduced Physical Activity ◽  
The Mean ◽  
Future Work

Abstract Introduction We established the MASS_Lifecourse study to investigate changes in skeletal muscle between ages 45–85. Reduced physical activity (PA) is a key factor linked to the development of sarcopenia. Our aim was the describe the amount and patterns of PA and sedentary behaviour (SB), and relationships with muscle strength and quantity, among MASS_Lifecourse participants. Method Participants wore a triaxial accelerometer on their dominant wrist for seven days. Recordings were analysed to calculate time in moderate-vigorous PA (MVPA) with time not in MVPA classified as SB based on wrist position. Muscle strength was measured with a Jamar grip dynamometer and the 5 chair-stand test. Muscle quantity was assessed using appendicular lean muscle mass from dual-energy X-ray absorptiometry. Physical performance was assessed by gait speed. Results 68 participants (31 male) aged 47–84 (mean 65) participated in the present study. Median daily MVPA was 19.1 (IQR 7.1, 36.6) minutes and was lower with age. The mean sedentary time per day was 767.1 minutes per day and increased with age. The pattern of MVPA across the day changed with age: the oldest group (75–84 years) achieved a lower morning activity peak followed by an earlier decline whilst the younger groups were more consistently active throughout the day. Participants were more active than population reference data from the Active Lives Survey. Time spent in MVPA was positively associated with muscle strength and physical performance, whereas SB was negatively associated. Muscle quantity was not associated with PA or SB. Conclusions Participants in the MASS_Lifecourse study are more active than the general population but still show age-related declines in physical activity and strength. Future work in the cohort aims to elucidate mechanisms underlying the age-related loss of muscle strength and quantity.

scholarly journals Instrumental diagnosis of osteosarcopenia in diagrams and tables

2021 ◽  
pp. 358-364
Author(s):  
A. V. Naumov ◽  
D. V. Demenok ◽  
Yu. S. Onuchina ◽  
N. O. Khovasova ◽  
V. I. Moroz ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Physical Performance ◽  
Assessment Tool ◽  
Mass Function ◽  
Dual Energy ◽  
Whole Body ◽  
Mineral Density ◽  
X Ray ◽  
Fracture Risk Assessment Tool ◽  
History Of

Osteoporosis and sarcopenia are age-associated diseases of the musculoskeletal system. Osteosarcopenia, the presence of osteopenia/osteoporosis and sarcopenia. The prevalence of osteosarcopenia in older adults with failing was 37% and associated with higher rate of death. Diagnosis of osteosarcopenia consists of describing medical history of fractures, providing x-ray of the spine (if it is needed) and bone densitometry, calculation of Fracture Risk Assessment Tool (FRAX), evaluating muscle strength, mass, function. The most common exam which is used to measure bone mineral density (BMD) is dual-energy x-ray absorptiometry (DXA or DEXA). Screening using the FRAX is recommended in all postmenopausal women and mеn over 50 in order to identify individuals with high probability of fractures. It is recommended to diagnose osteoporosis in patients with fragility fracture of large bones of the skeleton. Diagnosis of sarcopenia is consist of measures for three parameters: muscle strength, muscle quantity/quality and physical performance as an indicator of severity. Muscle strength can be measured with carpal dynamometry. Muscle mass can be evaluated dual-energy X-ray absorptiometry (program «Whole body»). Muscle function can be evaluated with short physical performance battery (SPPB) tests. In this article described algorithm of diagnosis of osteosarcopenia.

scholarly journals Screening for Sarcopenia (Physical Frailty) in the COVID-19 Era

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Amira Mohammed Ali ◽  
Hiroshi Kunugi
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Muscle Strength ◽  
Radiation Risk ◽  
Protective Measure ◽  
Considerable Proportion ◽  
Muscle Loss ◽  
Related Disorder ◽  
Age Related ◽  
Obesity And Diabetes

Although the numbers of aged populations have risen considerably in the last few decades, the current coronavirus disease 2019 (COVID-19) has revealed an extensive vulnerability among these populations. Sarcopenia is an age-related disorder that increases hospitalization, dependencies, and mortality in older adults. It starts to develop in midlife or even earlier as a result of unbalanced diet/poor nutrition and low levels of physical activity, in addition to chronic disorders such as obesity and diabetes mellitus. Given that social isolation is adopted as the most protective measure against COVID-19, the level of physical activity and the intake of adequate diet have considerably declined, especially among older adults—denoting an increased possibility for developing sarcopenia. Research also shows a higher vulnerability of sarcopenic people to COVID-19 as well as the development of wasting disorders such as sarcopenia and cachexia in a considerable proportion of symptomatic and recovering COVID-19 patients. Muscular wasting in COVID-19 is associated with poor prognosis. Accordingly, early detection and proper management of sarcopenia and wasting conditions in older adults and COVID-19 patients may minimize morbidity and mortality during the current COVID-19 crisis. This review explored different aspects of screening for sarcopenia, stressing their relevance to the detection of altered muscular structure and performance in patients with COVID-19. Current guidelines recommend prior evaluation of muscle strength by simple measures such as grip strength to identify individuals with proven weakness who then would be screened for muscle mass loss. The latter is best measured by MRI and CT. However, due to the high cost and radiation risk entailed by these techniques, other simpler and cheaper techniques such as DXA and ultrasound are given preference. Muscle loss in COVID-19 patients was measured during the acute phase by CT scanning of the pectoralis muscle simultaneously during a routine check for lung fibrosis, which seems to be an efficient evaluation of sarcopenia among those patients with no additional cost. In recovering patients, muscle strength and physical performance have been evaluated by electromyography and traditional tests such as the six-minute walk test. Effective preventive and therapeutic interventions are necessary in order to prevent muscle loss and associated physical decline in COVID-19 patients.

scholarly journals The Relationship Between Intermuscular Fat and Physical Performance Is Moderated by Muscle Area in Older Adults

2020 ◽  
Vol 76 (1) ◽  
pp. 115-122
Author(s):  
Samaneh Farsijani ◽  
Adam J Santanasto ◽  
Iva Miljkovic ◽  
Robert M Boudreau ◽  
Bret H Goodpaster ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Physical Performance ◽  
Functional Limitations ◽  
Negative Association ◽  
Muscle Area ◽  
Cross Sectional ◽  
Age Related ◽  
Intermuscular Fat ◽  
The Mean

Abstract Background Age-related deposition of fat in skeletal muscle is associated with functional limitations. Skeletal muscle fat may be present in people with preserved muscle mass or accompanied by muscle wasting. However, it is not clear if the association between muscle fat deposition and physical performance is moderated by muscle mass. Objective To determine whether the association between midthigh intermuscular fat and physical performance is moderated by muscle area. Methods We performed a cross-sectional analysis of the Health, Aging, and, Body Composition (ABC) study data collected in 2002–2003 (n = 1897, women: 52.2%). Midthigh muscle cross-sectional area (by computed tomography) and physical performance measures were compared across quartiles of intermuscular fat absolute area. Moderation analysis was performed to determine the conditional effect of intermuscular fat on physical performance as a function of muscle area. Conditional effects were evaluated at three levels of muscle area (mean and ± 1 standard deviation [SD]; 213.2 ± 53.2 cm2). Results Simple slope analysis showed that the negative association between intermuscular fat area (cm2) and leg strength (N·m) was of greater magnitude (beta coefficient [b], 95% confidence interval [CI] = −0.288 [−0.427, −0.148]) in participants with greater muscle area (ie, 1 SD above the mean) compared to those with lower muscle area (ie, at mean [b = −0.12 {−0.248, 0.008}] or 1 SD below the mean [b = 0.048 {−0.122, 0.217}]). Similarly, the negative association of intermuscular fat with 400-m walk speed (m/s) and chair stand (seconds) was greater in those with higher muscle areas (p < .001) compared to those with lower muscle areas. Conclusions The association between higher intermuscular fat area and impaired physical function in aging is moderated by muscle area.

Deficits in Muscle Strength and Physical Performance Influence Physical Activity in Sarcopenic Children After Liver Transplantation

2020 ◽  
Vol 26 (4) ◽  
pp. 537-548
Author(s):  
Poh Hwa Ooi ◽  
Vera C. Mazurak ◽  
Kerry Siminoski ◽  
Ravi Bhargava ◽  
Jason Y. K. Yap ◽  
...  
Keyword(s):  
Physical Activity ◽  
Liver Transplantation ◽  
Muscle Strength ◽  
Physical Performance

Resistance training, insulin sensitivity and muscle function in the elderly

2006 ◽  
Vol 42 ◽  
pp. 75-88 ◽  
Author(s):  
Flemming Dela ◽  
Michael Kjaer
Keyword(s):  
Physical Activity ◽  
Muscle Strength ◽  
The Elderly ◽  
Activity Level ◽  
Elderly Individuals ◽  
Healthy Elderly ◽  
Age Related ◽  
Increased Risk ◽  
Improved Function ◽  
Improve Muscle Strength

Ageing is associated with a loss in both muscle mass and in the metabolic quality of skeletal muscle. This leads to sarcopenia and reduced daily function, as well as to an increased risk for development of insulin resistance and type 2 diabetes. A major part, but not all, of these changes are associated with an age-related decrease in the physical activity level and can be counteracted by increased physical activity of a resistive nature. Strength training has been shown to improve insulin-stimulated glucose uptake in both healthy elderly individuals and patients with manifest diabetes, and likewise to improve muscle strength in both elderly healthy individuals and in elderly individuals with chronic disease. The increased strength is coupled to improved function and a decreased risk for fall injuries and fractures. Elderly individuals have preserved the capacity to improve muscle strength and mass with training, but seem to display a reduced sensitivity towards stimulating protein synthesis from nutritional intake, rather than by any reduced response in protein turnover to exercise.

Mitochondria, Muscle Health, and Exercise with Advancing Age

Physiology ◽  
2015 ◽  
Vol 30 (3) ◽  
pp. 208-223 ◽  
Author(s):  
Heather N. Carter ◽  
Chris C. W. Chen ◽  
David A. Hood
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Muscle Function ◽  
Older Individuals ◽  
Age Related ◽  
Optimal Function ◽  
Reduced Physical Activity ◽  
Muscle Health ◽  
Synthesis And Degradation

Skeletal muscle health is dependent on the optimal function of its mitochondria. With advancing age, decrements in numerous mitochondrial variables are evident in muscle. Part of this decline is due to reduced physical activity, whereas the remainder appears to be attributed to age-related alterations in mitochondrial synthesis and degradation. Exercise is an important strategy to stimulate mitochondrial adaptations in older individuals to foster improvements in muscle function and quality of life.

scholarly journals Correlates of Physical Functioning and Performance Across the Spectrum of Kidney Function

2017 ◽  
Vol 27 (5) ◽  
pp. 579-596 ◽  
Author(s):  
E. Segura-Ortí ◽  
P. L. Gordon ◽  
J. W. Doyle ◽  
K. L. Johansen
Keyword(s):  
Physical Activity ◽  
Muscle Strength ◽  
Physical Function ◽  
Kidney Function ◽  
Physical Performance ◽  
Physical Functioning ◽  
Muscle Size ◽  
Thigh Muscle ◽  
Muscle Area ◽  
And Performance

The aim of this study was to determine the extent to which poor physical functioning, low participation in physical activity, and muscle atrophy observed among patients on hemodialysis are evident in the earlier stages of chronic kidney disease (CKD). We enrolled adults in three groups: no CKD, Stages 3 to 4 CKD, and hemodialysis. Outcomes measured were physical activity, muscle size, thigh muscle strength, physical performance, and self-reported physical function. Patients with CKD had muscle area intermediate between the no CKD and hemodialysis groups, but they had low levels of physical activity that were similar to the hemodialysis group. Physical activity and muscle size were significantly associated with all outcomes. Kidney function was not significantly associated with muscle strength or physical performance after adjustment for physical activity and muscle size. In conclusion, interventions aimed to increase muscle mass and energy expenditure might have an impact on improving physical function of CKD patients.

scholarly journals SEIMUT PERSIA: Promoting Dental and Oral Health Care and Physical Performance in Elderly

2020 ◽  
Vol 3 (1) ◽  
pp. 10
Author(s):  
Aulia Ramadhani ◽  
Taufan Bramantoro ◽  
Fridaniyanti Khusnul Khotimah ◽  
Lintang Maudina Santosa ◽  
Nancy Cynthia Sudiartha ◽  
...  
Keyword(s):  
Public Health ◽  
Physical Activity ◽  
Health Care ◽  
Oral Health ◽  
Muscle Strength ◽  
Health Center ◽  
Physical Performance ◽  
The Elderly ◽  
Individual Interviews ◽  
Group Number

Background: An epidemiological study on elderly conducted by the PKL group number 6 in Jagir Health Public HealthCenter showed that periodontitis was linked hypertension, low muscle strength, and low physical activity, and carieswere linked to low muscle strength and low physical activity. Purpose: To create an informational health video aboutdental and oral health and physical performance in the elderly because there was none. Methods: The program wasconducted on Monday, 22 July 2019, at the Jagir Public Health Center using individual interviews. Results: Of the 20respondents, 5% of them disagreed, 5% quite agreed, 20% agreed, 70% strongly agreed that SEIMUT PERSIA helpedthem learn about dental and oral health and physical performance in the elderly. Out of the 20 respondents, 5% of themquite agreed, 15% agreed, and 80% strongly agreed that the SEIMUT PERSIA video was interesting to watch. Out of the20 respondents, 5% of them quite agreed, 20% agreed, and 75% strongly agreed that the SEIMUT PERSIA video was easyto digest. Conclusion: The respondents were interested in the information about dental and oral health and the physicalperformance of the elderly, and the video was easy to understand.

Sign in / Sign up

Export Citation Format

Share Document