scholarly journals Erratum to “Skeletal Muscle Mass Indices in Healthy Young Mexican Adults Aged 20–40 Years: Implications for Diagnoses of Sarcopenia in the Elderly Population”

2014 ◽  
Vol 2014 ◽  
pp. 1-1
Author(s):  
H. Alemán-Mateo ◽  
Roxana E. Ruiz Valenzuela
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Elderly Population ◽  
The Elderly ◽  
Mexican Adults

scholarly journals Skeletal Muscle Mass Indices in Healthy Young Mexican Adults Aged 20–40 Years: Implications for Diagnoses of Sarcopenia in the Elderly Population

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
H. Alemán-Mateo ◽  
Roxana E. Ruiz Valenzuela
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Elderly Population ◽  
The Elderly ◽  
Northwest Mexico ◽  
Appendicular Skeletal Muscle ◽  
Mexican Adults ◽  
Total Body ◽  
Appendicular Skeletal Muscle Mass

Background and Objectives. Skeletal muscle and skeletal muscle indices in young adults from developing countries are sparse. Indices and the corresponding cut-off points can be a reference for diagnoses of sarcopenia. This study assessed skeletal muscle using dual-energy X-ray absorptiometry (DXA) in healthy male and female subjects aged 20–40 years and compared their appendicular skeletal muscle mass (ASM) and total-body skeletal muscle (TBSM) indices using certain cut-off points published in the literature.Methods. A sample of 216 healthy adults men and women from northwest Mexico was included. Body composition was assessed by DXA and several published DXA-derived skeletal muscle indices were compared.Results. Both, ASM and TBSM were higher in men compared to the women group (23.0 ± 3.4 versus 15.9 ± 1.6 kg;P<0.05and 26.5 ± 4.1 versus 16.9 ± 1.9 kg;P<0.05, resp.). These differences were also valid for both indices. When derived cut-off points were compared with the most reported indices, significant differences were found.Interpretation and Conclusion. Published cut-off points from Caucasians are higher than cut-off point derived in this sample of Mexican subjects. The new DXA-derived cut-off points for ASM proposed herein may improve diagnoses of sarcopenia in the geriatric Mexican population.

scholarly journals Skeletal Muscle Mass as a Predictor of Mortality in the Elderly Population

2013 ◽  
Vol 85 (2) ◽  
pp. 167 ◽  
Author(s):  
Hee Won Jung ◽  
Sun Wook Kim ◽  
Ho Jun Chin ◽  
Cheol Ho Kim ◽  
Kwang Il Kim
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Elderly Population ◽  
The Elderly

scholarly journals Gender-Specific Associations between Low Skeletal Muscle Mass and Albuminuria in the Middle-Aged and Elderly Population

2017 ◽  
Vol 14 (11) ◽  
pp. 1054-1064 ◽  
Author(s):  
Hye Eun Yoon ◽  
Yunju Nam ◽  
Eunjin Kang ◽  
Hyeon Seok Hwang ◽  
Seok Joon Shin ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Elderly Population ◽  
Middle Aged ◽  
Gender Specific

scholarly journals Effects of PM2.5 on Skeletal Muscle Mass and Body Fat Mass of the Elderly in Taipei, Taiwan

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Chi-Hsien Chen ◽  
Li-Ying Huang ◽  
Kang-Yun Lee ◽  
Chih-Da Wu ◽  
Hung-Che Chiang ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Body Fat ◽  
Fat Mass ◽  
Skeletal Muscle Mass ◽  
The Elderly ◽  
Body Fat Mass

Aging, exercise, and muscle protein metabolism

2009 ◽  
Vol 106 (6) ◽  
pp. 2040-2048 ◽  
Author(s):  
René Koopman ◽  
Luc J. C. van Loon
Keyword(s):  
Physical Activity ◽  
Skeletal Muscle ◽  
Protein Synthesis ◽  
Food Intake ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
The Elderly ◽  
Age Related

Aging is accompanied by a progressive loss of skeletal muscle mass and strength, leading to the loss of functional capacity and an increased risk of developing chronic metabolic disease. The age-related loss of skeletal muscle mass is attributed to a disruption in the regulation of skeletal muscle protein turnover, resulting in an imbalance between muscle protein synthesis and degradation. As basal (fasting) muscle protein synthesis rates do not seem to differ substantially between the young and elderly, many research groups have started to focus on the muscle protein synthetic response to the main anabolic stimuli, i.e., food intake and physical activity. Recent studies suggest that the muscle protein synthetic response to food intake is blunted in the elderly. The latter is now believed to represent a key factor responsible for the age-related decline in skeletal muscle mass. Physical activity and/or exercise stimulate postexercise muscle protein accretion in both the young and elderly. However, the latter largely depends on the timed administration of amino acids and/or protein before, during, and/or after exercise. Prolonged resistance type exercise training represents an effective therapeutic strategy to augment skeletal muscle mass and improve functional performance in the elderly. The latter shows that the ability of the muscle protein synthetic machinery to respond to anabolic stimuli is preserved up to very old age. Research is warranted to elucidate the interaction between nutrition, exercise, and the skeletal muscle adaptive response. The latter is needed to define more effective strategies that will maximize the therapeutic benefits of lifestyle intervention in the elderly.

Body composition in the elderly: Reference values and bioelectrical impedance spectroscopy to predict total body skeletal muscle mass

2009 ◽  
Vol 28 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Marja Tengvall ◽  
Lars Ellegård ◽  
Vibeke Malmros ◽  
Niklas Bosaeus ◽  
Lauren Lissner ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Body Composition ◽  
Impedance Spectroscopy ◽  
Muscle Mass ◽  
Reference Values ◽  
Skeletal Muscle Mass ◽  
Bioelectrical Impedance ◽  
The Elderly ◽  
Total Body

scholarly journals Dietary protein and exercise training in ageing

2010 ◽  
Vol 70 (1) ◽  
pp. 104-113 ◽  
Author(s):  
René Koopman
Keyword(s):  
Skeletal Muscle ◽  
Protein Synthesis ◽  
Exercise Training ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Human Subjects ◽  
The Elderly ◽  
Age Related

Ageing is accompanied by a progressive loss of skeletal muscle mass and strength, leading to the loss of functional capacity and an increased risk for developing chronic metabolic diseases such as diabetes. The age-related loss of skeletal muscle mass results from a chronic disruption in the balance between muscle protein synthesis and degradation. As basal muscle protein synthesis rates are likely not different between healthy young and elderly human subjects, it was proposed that muscles from older adults lack the ability to regulate the protein synthetic response to anabolic stimuli, such as food intake and physical activity. Indeed, the dose–response relationship between myofibrillar protein synthesis and the availability of essential amino acids and/or resistance exercise intensity is shifted down and to the right in elderly human subjects. This so-called ‘anabolic resistance’ represents a key factor responsible for the age-related decline in skeletal muscle mass. Interestingly, long-term resistance exercise training is effective as a therapeutic intervention to augment skeletal muscle mass, and improves functional performance in the elderly. The consumption of different types of proteins, i.e. protein hydrolysates, can have different stimulatory effects on muscle protein synthesis in the elderly, which may be due to their higher rate of digestion and absorption. Current research aims to elucidate the interactions between nutrition, exercise and the skeletal muscle adaptive response that will define more effective strategies to maximise the therapeutic benefits of lifestyle interventions in the elderly.

Skeletal muscle mass and risk of death in an elderly population

2014 ◽  
Vol 24 (7) ◽  
pp. 784-791 ◽  
Author(s):  
S.-Y. Chuang ◽  
H.-Y. Chang ◽  
M.-S. Lee ◽  
R. Chia-Yu Chen ◽  
W.-H. Pan
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Elderly Population ◽  
Risk Of Death

scholarly journals Sarcopenia and Frailty in Liver Cirrhosis

Life ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 399
Author(s):  
Hiroki Nishikawa ◽  
Shinya Fukunishi ◽  
Akira Asai ◽  
Shuhei Nishiguchi ◽  
Kazuhide Higuchi
Keyword(s):  
Skeletal Muscle ◽  
Liver Cirrhosis ◽  
Physical Function ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Current Knowledge ◽  
The Elderly ◽  
The Body ◽  
Assessment Criteria ◽  
Skeletal Muscle Atrophy

Skeletal muscle is the largest organ in the body, and skeletal muscle atrophy results from a shift in the balance of protein synthesis and degradation toward protein breakdown. Primary sarcopenia is defined as a loss of skeletal muscle mass and strength or physical function due to aging, and secondary sarcopenia is defined as a loss of skeletal muscle mass and strength or physical function due to underlying diseases. Liver cirrhosis (LC) is one of the representative diseases which can be complicated with secondary sarcopenia. Muscle mass loss becomes more pronounced with worsening liver reserve in LC patients. While frailty encompasses a state of increased vulnerability to environmental factors, there is also the reversibility of returning to a healthy state with appropriate intervention. Several assessment criteria for sarcopenia and frailty were proposed in recent years. In 2016, the Japan Society of Hepatology created assessment criteria for sarcopenia in liver disease. In Japan, health checkups for frailty in the elderly aged 75 years or more started in April 2020. Both sarcopenia and frailty can be adverse predictors for cirrhotic patients. In this review article, we will summarize the current knowledge of sarcopenia and frailty in LC patients.

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