scholarly journals Associations of sarcopenia components with physical activity and nutrition in Australian older adults performing exercise training

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ewelina Akehurst ◽  
David Scott ◽  
Juan Peña Rodriguez ◽  
Carol Alonso Gonzalez ◽  
Jasmaine Murphy ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Muscle Mass ◽  
Physical Performance ◽  
Gait Speed ◽  
Protein Intake ◽  
Handgrip Strength ◽  
The Elderly ◽  
Community Dwelling ◽  
Timed Up And Go

Abstract Background The risk of progressive declines in skeletal muscle mass and strength, termed sarcopenia, increases with age, physical inactivity and poor diet. The purpose of this study was to explore and compare associations of sarcopenia components with self-reported physical activity and nutrition in older adults participating in resistance training at Helsinki University Research [HUR] and conventional gyms for over a year, once a week, on average. Methods The study looked at differences between HUR (n = 3) and conventional (n = 1) gyms. Muscle strength (via handgrip strength and chair stands), appendicular lean mass (ALM; via dual energy X-ray absorptiometry) and physical performance (via gait speed over a 4-m distance, short physical performance battery, timed up and go and 400-m walk tests) were evaluated in 80 community-dwelling older adults (mean ± SD 76.5 ± 6.5 years). Pearson correlations explored associations for sarcopenia components with self-reported physical activity (via Physical Activity Scale for the Elderly [PASE]) and nutrition (via Australian Eating Survey). Results No differences in PASE and the Australian Recommended Food Score (ARFS) were observed between HUR and conventional gyms, however HUR gym participants had a significantly higher self-reported protein intake (108 ± 39 g vs 88 ± 27 g; p = 0.029) and a trend to have higher energy intake (9698 ± 3006 kJ vs 8266 ± 2904 kJ; p = 0.055). In both gym groups, gait speed was positively associated with self-reported physical activity (r = 0.275; p = 0.039 and r = 0.423; p = 0.044 for HUR and conventional gyms, respectively). ALM was positively associated with protein (p = 0.047, r = 0.418) and energy (p = 0.038, r = 0.435) intake in the conventional gym group. Similar associations were observed for ALM/h2 in the HUR group. None of the sarcopenia components were associated with ARFS in either gym group. Conclusion Older adults attending HUR and conventional gyms had similar self-reported function and nutrition (but not protein intake). Inadequate physical activity was associated with low gait speed and inadequate nutrition and low protein ingestion associated with low lean mas, even in older adults participating in exercise programs. Optimal physical activity and nutrition are important for maintaining muscle mass and function in older adults.

scholarly journals Associations of Sarcopenia Components With Physical Activity and Nutrition in Australian Older Adults Performing Exercise Training

2020 ◽  
Author(s):  
Ewelina Akehurst ◽  
David Scott ◽  
Juan Peña Rodriguez ◽  
Carol Alonso Gonzalez ◽  
Jasmaine Alyce Murphy ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Physical Performance ◽  
Gait Speed ◽  
Handgrip Strength ◽  
Community Dwelling ◽  
Activity Levels ◽  
Timed Up And Go ◽  
Community Dwelling Older Adults ◽  
Pearson Correlations

Abstract Background: The risk of progressive declines in skeletal muscle mass and strength, termed sarcopenia, increases with age, physical inactivity and poor diet. The purpose of this study was to explore associations of sarcopenia components with self-reported physical activity and nutrition in older adults participating in resistance training at conventional or Helsinki University Research [HUR] gyms. Methods: Muscle strength (via handgrip strength and chair stands), appendicular lean mass [ALM] (via dual energy X-ray absorptiometry) and physical performance (via gait speed over a 4-metre distance, short physical performance battery, timed up and go and 400-metre walk tests) were evaluated in a cohort study of 80 community-dwelling older adults (mean±SD 76.5B6.5 years). Pearson correlations explored associations for sarcopenia components with self-reported physical activity (via Physical Activity Scale for Elderly [PASE]) and nutrition (via Australian Eating Survey), with higher scores indicative of greater physical activity levels and better nutrition, respectively. Results: No differences in PASE were observed between HUR and conventional gyms, however HUR gym participants had a significantly higher self-reported protein intake and a trend (p = 0.055) to have higher energy intake. In both gym groups, gait speed was positively associated with self-reported physical activity (r = 0.275; p = 0.039 and r = 0.423; p = 0.044 for HUR and conventional gyms, respectively). ALM was positively associated with protein (p = 0.047, r = 0.418) and energy (p = 0.038, r = 0.435) intake in the conventional gym group. Similar associations were observed for ALM/h2 in the HUR group. None of the sarcopenia components were associated with the Australian Recommended Food Score (derived from the Australian Eating Survey) in either gym group.

scholarly journals Effects of Reallocating Time Spent in Different Physical Activity Intensities on Sarcopenia Risk in Older Adults: An Isotemporal Substitution Analysis

Biology ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 111
Author(s):  
Jort Veen ◽  
Diego Montiel-Rojas ◽  
Fawzi Kadi ◽  
Andreas Nilsson
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Protein Intake ◽  
Handgrip Strength ◽  
Community Dwelling ◽  
Self Report ◽  
Linear Regression Models ◽  
Age Related ◽  
Muscle Health ◽  
The Impact

The role of daily time spent sedentary and in different intensities of physical activity (PA) for the maintenance of muscle health currently remains unclear. Therefore, we investigated the impact of reallocating time spent in different PA intensities on sarcopenia risk in older adults, while considering PA type (muscle strengthening activities, MSA) and protein intake. In a sample of 235 community-dwelling older adults (65–70 years), a sarcopenia risk score (SRS) was created based on muscle mass assessed by bioimpedance, together with handgrip strength and performance on the five times sit-to-stand (5-STS) test assessed by standardized procedures. Time spent in light-intensity PA (LPA), moderate-to-vigorous PA (MVPA), and being sedentary was assessed by accelerometry, and PA type (MSA) by self-report. Linear regression models based on isotemporal substitution were employed. Reallocating sedentary time to at least LPA was significantly (p < 0.05) related to a lower SRS, which remained evident after adjustment by PA type (MSA) and protein intake. Similarly, reallocating time in LPA by MVPA was related to a significantly (p < 0.05) lower SRS. Our results emphasize the importance of displacing sedentary behaviours for more active pursuits, where PA of even light intensities may alleviate age-related deteriorations of muscle health in older adults.

scholarly journals Instrumented Assessment of Physical Activity Is Associated With Muscle Function but Not With Muscle Mass in a General Population

2017 ◽  
Vol 30 (9) ◽  
pp. 1462-1481 ◽  
Author(s):  
Anna G. M. Rojer ◽  
Esmee M. Reijnierse ◽  
Marijke C. Trappenburg ◽  
Rob C. van Lummel ◽  
Martijn Niessen ◽  
...  
Keyword(s):  
Physical Activity ◽  
General Population ◽  
Muscle Mass ◽  
Gait Speed ◽  
Muscle Function ◽  
Handgrip Strength ◽  
Group Discussion ◽  
Community Dwelling ◽  
Self Report ◽  
Middle Aged

Objectives: Self-reported physical activity has shown to affect muscle-related parameters. As self-report is likely biased, this study aimed to assess the association between instrumented assessment of physical activity (I-PA) and muscle-related parameters in a general population. Method: Included were 156 young-to-middle-aged and 80 older community-dwelling adults. Seven days of trunk accelerometry (DynaPort MoveMonitor, McRoberts B.V.) quantified daily physical activity (i.e., active/inactive duration, number and mean duration of active/inactive periods, and number of steps per day). Muscle-related parameters included muscle mass, handgrip strength, and gait speed. Results: I-PA was associated with handgrip strength in young-to-middle-aged adults and with gait speed in older adults. I-PA was not associated with muscle mass in either age group. Discussion: The association between I-PA and muscle-related parameters was age dependent. The lack of an association between I-PA and muscle mass indicates the relevance of muscle function rather than muscle mass.

scholarly journals Association of Physical Activity, Muscle Mass, Strength, and Function to Quality of Life in Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 185-186
Author(s):  
Murad Taani ◽  
Chi Cho ◽  
Julie Ellis
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Older Adults ◽  
Muscle Mass ◽  
Handgrip Strength ◽  
Community Dwelling ◽  
Steps Per Day ◽  
Mental Hrqol ◽  
And Function

Abstract Physical inactivity and loss of muscle mass, strength, and function are associated with negative outcomes including disability and a decline in health-related quality of life (HRQoL) among older adults. Older adults living in continuing care retirement communities (CCRCs) are at greater risk for declining physical activity and muscle outcomes compared to community-dwelling older adults. Few researchers studying the association of muscle and physical activity have examined the distinction between physical and mental HRQoL. Understanding the differential association of physical and mental HRQoL to physical activity and muscle outcomes can inform the development of useful interventions. The aim of this study was to examine the relationships between physical activity, muscle mass, strength, function and physical and mental HRQoL. Using a descriptive, correlational design, 105 older adults living in CCRCs were recruited. Light physical activity (LPA), moderate physical activity (MPA), sedentary behavior, and steps per day were assessed using ActiGraph GT3X. Appendicular skeletal muscle mass (ASMM) was assessed with bioelectrical impedance spectroscopy, handgrip strength with JAMAR Smart Hand Dynamometer, muscle function with the Short Physical Performance Battery (SPPB) test, and physical and mental HRQoL with the SF-36 questionnaire. The mean age of participants was 83 (SD=7.4). Using multiple regression models adjusted for sex and age, steps per day and SPPB score explained 38.4 % of the variance in physical HRQoL. Handgrip strength explained 8 % of the variance in mental HRQoL. These findings suggest that QoL improvement programs should include components to improve physical activity, muscle strength and function.

scholarly journals Myostatin/Appendicular Skeletal Muscle Mass (ASM) Ratio, Not Myostatin, Is Associated with Low Handgrip Strength in Community-Dwelling Older Women

2021 ◽  
Vol 18 (14) ◽  
pp. 7344
Author(s):  
Soo Jeong Choi ◽  
Min Sung Lee ◽  
Duk-Hee Kang ◽  
Gang Jee Ko ◽  
Hee-Sook Lim ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Physical Performance ◽  
Skeletal Muscle Mass ◽  
Handgrip Strength ◽  
Laboratory Data ◽  
The Elderly ◽  
Community Dwelling ◽  
Appendicular Skeletal Muscle ◽  
Appendicular Skeletal Muscle Mass

Background/Aims: Elevated levels of serum myostatin have been proposed as a biomarker for sarcopenia. Recent studies have shown that elevated level of serum myostatin was associated with physical fitness and performance. This study aimed to examine the significance of myostatin in the association between muscle mass and physical performance in the elderly. Methods: This cross-sectional study is based on the Korean Frailty and Aging Cohort study involving 1053 people aged 70 years or over. Anthropometric, physical performance, and laboratory data were collected. Results: The mean age of the participants was 75.8 years, and 50.7% of them were female. Serum myostatin levels in men (3.7 ± 1.2 vs. 3.2 ± 1.1 ng/mL, p < 0.001) were higher compared with that in women. Serum myostatin level was associated with appendicular skeletal muscle mass (ASM) index and eGFR by cystatin C. Serum myostatin/ASM ratio was associated with handgrip strength in women. Conclusion: Higher serum myostatin levels were related with higher muscle mass and better physical performances in the elderly. Serum myostatin/ASM ratio may be a predictor for physical performance rather than myostatin.

scholarly journals Duration or Timing? What is the Optimal Core for Older Adults to Engage in Moderate-to-vigorous Physical Activity to Prevent Disability?

2020 ◽  
Author(s):  
Ting-Fu Lai ◽  
Yung Liao ◽  
Chien-Yu Lin ◽  
Wan-Chi Huang ◽  
Ming-Chun Hsueh ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Physical Function ◽  
Gait Speed ◽  
Handgrip Strength ◽  
Vigorous Physical Activity ◽  
Total Duration ◽  
Functional Mobility ◽  
Linear Regression Models ◽  
Timed Up And Go

Abstract Background The positive association between the total duration of physical activity and performances of physical function may vary at different times of the day as circadian rhythm regulates individuals in response to external stimulations. We aimed to examine the association of timing-specific and overall moderate-to-vigorous physical activity (MVPA) with performances of physical function in older adults. Methods A cross-sectional analysis was conducted among 118 older adults (mean age = 70.0 ± 5.0 years). We assessed and identified timing-specific (morning: 06:01-12:00; afternoon: 12:01-18:00; evening: 18:01-24:00) and overall MVPA using a triaxial accelerometer. Different measures of physical function were evaluated including handgrip strength (by grip dynamometer), gait speed (five-meter walk test), basic functional mobility (timed up and go test), and lower limb strength (five times sit-to-stand test). Multivariate linear regression models adjusting for covariates were used to investigate the associations. Results Participants spent 0.4 hours in MVPA per day on average, half the time spent during the morning (47.7%), followed by during the afternoon (29.9%) and evening (21.6%). The time spent on overall MVPA was generally associated with better physical function performances. There was statistical evidence for the percentages of MVPA engagement during the morning ( B = 0.214, 95% confidence interval [CI] 0.001 to 0.428) and afternoon ( B = -0.273, 95% CI -0.518 to -0.027) associated with basic functional mobility but with contrary directions; the percentage of MVPA engagement during the evening was associated with less time spent in gait speed performance ( B = -0.237, 95% CI -0.468 to -0.006). Conclusions Our findings inform implications that the overall MVPA engagement was more important than timing-specific MVPA to older adults’ physical function performances. Strategies for accumulating time of MVPA is more practical and effective than encouraging to engage MVPA in specific timing for the enhancement of functional ability and therefore prevent disability among older adults.

scholarly journals Performance on sit-to-stand tests in relation to measures of functional fitness and sarcopenia diagnosis in community-dwelling older adults

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Xianyang Sherman Yee ◽  
Yee Sien Ng ◽  
John Carson Allen ◽  
Aisyah Latib ◽  
Ee Ling Tay ◽  
...  
Keyword(s):  
Older Adults ◽  
Grip Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Gait Speed ◽  
Dynamic Balance ◽  
Community Dwelling ◽  
Sit To Stand ◽  
Fitness Measures ◽  
Community Dwelling Older Adults

Abstract Background The sit-to-stand (STS) test has been deployed as surrogate measures of strength or physical performance in sarcopenia diagnosis. This study examines the relationship of two common STS variants – Five Times Sit-to-Stand Test (5TSTS) and 30 s Chair Stand Test (30CST) – with grip strength, muscle mass and functional measures, and their impact on sarcopenia prevalence in community-dwelling older adults. Methods This is a cross-sectional analysis of 887 community-dwelling adults aged ≥50 years. Participants completed a battery of physical fitness tests - 5TSTS, 30CST, grip strength, gait speed, Timed-Up-and-Go (TUG) for dynamic balance and six-minute walk test (6MWT) for cardiorespiratory endurance. Muscle mass was measured using multi-frequency segmental bioelectrical impedance analysis (BIA). We performed correlation analysis between STS performance and other fitness measures and muscle mass, followed by multiple linear regression for the independent determinants of STS performance. Results Mean participant age was 67.3±7 years, with female predominance (72.9%). STS tests exhibited weak correlations with grip strength (30CST, r = 0.290; 5TSTS, r = − 0.242; both p< 0.01), and stronger correlations with gait speed (30CST, r = 0.517; 5TSTS, r = − 0.533; both p< 0.01), endurance (30CST, r = 0.558; 5TSTS, r = − 0.531; both p < 0.01) and dynamic balance (30CST, r = − 0.501; 5TSTS, r = 0.646; both p< 0.01). Muscle mass correlated with grip strength but not STS. In multiple regression analysis, all fitness measures were independently associated with 30CST performance. Performance in both STS tests remained independent of muscle mass. There was no significant difference in prevalence of possible sarcopenia diagnosis using grip strength or STS (30CST, 25.0%; 5TSTS, 22.1%; grip strength, 22.3%; p = 0.276). When both measures are used, prevalence is significantly higher (42.0%; p = 0.276). Prevalence of confirmed sarcopenia with inclusion of muscle mass was significantly lower using STS compared with grip strength (30CST, 4.6%; 5TSTS, 4.1% vs. grip strength, 7.1%; p< 0.05). Conclusion In the sarcopenia construct, STS tests better represents muscle physical performance rather than muscle strength. Different subsets of population with possible sarcopenia are identified depending on the test used. The lack of association of STS performance with muscle mass results in a lower prevalence of confirmed sarcopenia compared with grip strength, but may better reflect changes in muscle quality.

scholarly journals Moderate-to-vigorous physical activity duration is more important than timing for physical function in older adults

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ting-Fu Lai ◽  
Yung Liao ◽  
Chien-Yu Lin ◽  
Wan-Chi Huang ◽  
Ming-Chun Hsueh ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Physical Function ◽  
Gait Speed ◽  
Handgrip Strength ◽  
Vigorous Physical Activity ◽  
Total Duration ◽  
Functional Mobility ◽  
Linear Regression Models ◽  
Timed Up And Go

AbstractThe positive association between the total duration of physical activity and performances of physical function may vary at different times of the day as circadian rhythm regulates individuals in response to external stimulations. We aimed to examine the association of timing-specific and overall moderate-to-vigorous physical activity (MVPA) with performances of physical function in older adults. A cross-sectional analysis was conducted among 118 older adults (mean age = 70.0 ± 5.0 years). We assessed and identified timing-specific (morning: 06:01–12:00; afternoon: 12:01–18:00; evening: 18:01–24:00) and overall MVPA using a triaxial accelerometer. Different measures of physical function were evaluated including handgrip strength (by grip dynamometer), gait speed (5-m walk test), basic functional mobility (timed up and go test), and lower limb strength (five times sit-to-stand test). Multivariate linear regression models adjusting for covariates were used to investigate the associations. Participants spent 25.0 (± 26.2) minutes in MVPA per day on average, half the time spent during the morning (47.7%), followed by during the afternoon (29.9%) and evening (21.6%). The time spent on overall MVPA was generally associated with better physical function performances. There was statistical evidence for the percentages of MVPA engagement during the morning [B = 0.214, 95% confidence interval (CI) 0.001 to 0.428] and afternoon (B = − 0.273, 95% CI − 0.518 to − 0.027) associated with basic functional mobility but with contrary directions; the percentage of MVPA engagement during the evening was associated with less time spent in gait speed performance (B = − 0.237, 95% CI − 0.468 to − 0.006). Our findings inform implications that the overall MVPA engagement was more important than timing-specific MVPA to older adults’ physical function performances. Strategies for accumulating time of MVPA is more practical and effective than encouraging to engage MVPA in specific timing for the enhancement of functional ability and therefore prevent disability among older adults.

scholarly journals Amount of Protein Required to Improve Muscle Mass in Older Adults

Nutrients ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1700
Author(s):  
Doyeon Kim ◽  
Yongsoon Park
Keyword(s):  
Older Adults ◽  
Older Women ◽  
Muscle Mass ◽  
Gait Speed ◽  
Protein Intake ◽  
Older Men ◽  
Community Dwelling ◽  
Age Related ◽  
And Function ◽  
Habitual Protein Intake

Increased protein intake has been suggested as an effective strategy to treat age-related loss of muscle mass and function, but the amount of protein required to improve muscle and function without exercise in older adults remains unclear. Thus, this secondary data analysis aimed to assess what amount of protein from habitual protein intake was positively associated with changes in muscle mass and gait speed in older women and men. Ninety-six community-dwelling older adults consumed 0.8, 1.2, or 1.5 g/kg/day of protein and maintained their usual physical activity for 12 weeks. Increased protein intake of >0.54 g/kg/day was positively associated with changes in appendicular skeletal muscle mass (ASM)/weight (B = 0.591, p = 0.026), ASM/body mass index (B = 0.615, p = 0.023), and ASM:fat ratio (B = 0.509, p = 0.030) in older men. However, change in protein intake was not associated with change in muscle mass in older women. Additionally, change in protein intake was not associated with change in gait speed in older women and men. The present study suggested that an increased absolute protein amount of >0.54 g/kg/day from habitual protein intake was positively associated with change in muscle mass in older men.

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