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Dynapenia

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https://www.readbyqxmd.com/read/29656012/muscle-strength-and-size-are-associated-with-motor-unit-connectivity-in-aged-mice
#1
Kajri A Sheth, Chitra C Iyer, Christopher G Wier, Alexander E Crum, Anna Bratasz, Stephen J Kolb, Brian C Clark, Arthur H M Burghes, W David Arnold
In older adults, the loss of muscle strength (dynapenia) and the loss of muscle mass (sarcopenia) are important contributors to the loss of physical function. We sought to investigate dynapenia, sarcopenia, and the loss of motor unit function in aging mice. C57BL/6J mice were analyzed with cross-sectional (males: 3 vs. 27 months; males and females: 8 vs. 12 vs. 20 months) and longitudinal studies (males: 10-25 months) using in vivo electrophysiological measures of motor unit connectivity (triceps surae compound muscle action potential and motor unit number estimation), in vivo measures of plantar flexion torque, magnetic resonance imaging of hind limb muscle volume, and grip strength...
March 23, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29644921/cognitive-frailty-and-its-association-with-all-cause-mortality-among-community-dwelling-older-adults-in-taiwan-results-from-i-lan-longitudinal-aging-study
#2
Li-Kuo Liu, Wei-Ju Lee, Yi-Hui Wu, An-Chun Hwang, Ming-Hsien Lin, Hiroyuki Shimada, Li-Ning Peng, Ching-Hui Loh, Hidenori Arai, Liang-Kung Chen
BACKGROUND: The definition of cognitive frailty and its prediction for adverse outcome of community-living older adults remains controversial. This study aims to evaluate the association between cognitive frailty and all-cause mortality among community-living older adults. METHODS: Data of the I-Lan Longitudinal Aging Study (ILAS) were retrieved for study. Frailty was defined by Fried's criteria, and a series of neuropsychological assessments, including the Mini-Mental State Examination (MMSE), Center for Epidemiology Studies-Depression (CES-D), the delay free recall in the Chinese Version Verbal Learning Test, the Boston Naming Test, the category (animal) Verbal Fluency Test, the Taylor Complex Figure Test, the digital backward and the Clock Drawing Test were performed...
April 12, 2018: Rejuvenation Research
https://www.readbyqxmd.com/read/29627421/depressive-symptoms-and-muscle-weakness-a-two-way-relation
#3
Marco Bertoni, Stefania Maggi, Enzo Manzato, Nicola Veronese, Guglielmo Weber
The potential association between depressive symptoms and dynapenia - i.e. muscle weakness - is limited to few, mainly cross-sectional, studies. We use SHARE (Survey on Health, Ageing and Retirement in Europe) panel data to investigate whether the onset of dynapenia at 4-year follow-up can be explained by pre-existing (either at baseline, or at 2-year follow-up) depressive symptoms, or vice versa. Depressive symptoms were identified as a score of 4 or more on the 12-item EURO-D scale. Individuals were classified as affected by dynapenia if they had handgrip strength of <20 kg for women and 30 kg for men...
April 5, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29604401/limb-muscle-quality-and-quantity-in-elderly-adults-with-dynapenia-but-not-sarcopenia-an-ultrasound-imaging-study
#4
Ke-Vin Chang, Wei-Ting Wu, Kuo-Chin Huang, Wei Han Jan, Der-Sheng Han
BACKGROUND: Dynapenia is prevalent in people with reduced skeletal muscle mass, i.e. sarcopenia, but a certain population develops muscle strength loss despite having normal skeletal muscle volume. To date, studies investigating muscle quality and quantity in groups with dynapenia but not sarcopenia are limited. METHODS: Echogenicity and thickness of the biceps brachii, triceps brachii, rectus femoris, and medial gastrocnemius muscles were measured using high-resolution ultrasonography in 140 community-dwelling elderly adults...
March 28, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29531601/dynapenia-and-sarcopenia-as-a-risk-factor-for-disability-in-a-falls-and-fractures-clinic-in-older-persons
#5
Angela-María Benjumea, Carmen-Lucía Curcio, Gustavo Duque, Fernando Gómez
BACKGROUND: The role of sarcopenia and dynapenia in disability in older persons from falls and bone health clinics remain unknown. AIM: This study aims to compare the association of sarcopenia and dynapenia with physical and instrumental disability in a population of older persons attending a falls and fractures clinic. METHODS: This is a cross-sectional study in Manizales, Andes Mountains, Colombia. A cohort of 534 subjects (mean age = 74, 75% female) Sarcopenia was measured according to the European Working Group on Sarcopenia in Older People (EWGSOP) including an index of skeletal mass, muscle strength, and gait speed...
February 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29476104/exploring-the-link-between-serum-phosphate-levels-and-low-muscle-strength-dynapenia-and-sarcopenia
#6
Yuan-Yuei Chen, Tung-Wei Kao, Cheng-Wai Chou, Chen-Jung Wu, Hui-Fang Yang, Ching-Huang Lai, Li-Wei Wu, Wei-Liang Chen
Emerging evidences addressed an association between phosphate and muscle function. Because little attention was focused on this issue, the objective of our study was to explore the relationship of phosphate with muscle strength, dynapenia, and sarcopenia. From the National Health and Nutrition Examination Survey, a total of 7421 participants aged 20 years or older were included in our study with comprehensive examinations included anthropometric parameters, strength of the quadriceps muscle, and appendicular lean masses...
February 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29421778/prevalence-of-sarcopenia-and-dynapenia-and-their-determinants-in-iranian-peritoneal-dialysis-patients
#7
Atefeh As'habi, Iraj Najafi, Hadi Tabibi, Mehdi Hedayati
INTRODUCTION: Uremic sarcopenia and dynapenia are prevalent in chronic kidney disease patients, including dialysis patients. The present study was designed to determine the prevalence of sarcopenia and dynapenia and their determinants in peritoneal dialysis (PD) patients in Tehran, Iran. MATERIALS AND METHODS: All eligible PD patients at the peritoneal dialysis centers of Tehran were included in this cross-sectional study. Skeletal muscle mass and muscle strength were assessed using bioelectrical impedance analysis and hand grip strength, respectively...
January 2018: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/29368427/physical-activity-unveils-the-relationship-between-mitochondrial-energetics-muscle-quality-and-physical-function-in-older-adults
#8
Giovanna Distefano, Robert A Standley, Xiaolei Zhang, Elvis A Carnero, Fanchao Yi, Heather H Cornnell, Paul M Coen
BACKGROUND: The concept of mitochondrial dysfunction in ageing muscle is highly controversial. In addition, emerging evidence suggests that reduced muscle oxidative capacity and efficiency underlie the aetiology of mobility loss in older adults. Here, we hypothesized that studying well-phenotyped older cohorts across a wide range of physical activity would unveil a range of mitochondrial function in skeletal muscle and in turn allow us to more clearly examine the impact of age per se on mitochondrial energetics...
January 24, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29300433/dynapenic-abdominal-obesity-increases-mortality-risk-among-english-and-brazilian-older-adults-a-10-year-follow-up-of-the-elsa-and-sabe-studies
#9
T da Silva Alexandre, S Scholes, J L Ferreira Santos, Y A de Oliveira Duarte, C de Oliveira
BACKGROUND/OBJECTIVE: There is little epidemiological evidence demonstrating that dynapenic abdominal obesity has higher mortality risk than dynapenia and abdominal obesity alone. Our main aim was to investigate whether dynapenia combined with abdominal obesity increases mortality risk among English and Brazilian older adults over ten-year follow-up. DESIGN: Cohort study. SETTING: United Kingdom and Brazil. PARTICIPANTS: Data came from 4,683 individuals from the English Longitudinal Study of Ageing (ELSA) and 1,490 from the Brazilian Health, Well-being and Aging study (SABE), hence the final sample of this study was 6,173 older adults...
2018: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29289723/diaphragm-muscle-dysfunction-in-patients-with-heart-failure
#10
Mari Miyagi, Yoshiharu Kinugasa, Takeshi Sota, Kensaku Yamada, Takuya Ishisugi, Masayuki Hirai, Kiyotaka Yanagihara, Nobuhiko Haruki, Koichi Matsubara, Masahiko Kato, Kazuhiro Yamamoto
BACKGROUND: Inspiratory muscle weakness is associated with the development of exercise intolerance in patients with heart failure (HF). Ultrasound assessment of the diaphragm is used to evaluate respiratory muscle function, but its application in patients with HF remains undefined. We examined the relationship of diaphragm function as assessed by ultrasonography with inspiratory muscle strength and exercise tolerance in HF. METHODS AND RESULTS: Seventy-seven patients hospitalized with HF were enrolled...
April 2018: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29278424/feasibility-of-systematic-handgrip-strength-testing-in-digestive-cancer-patients-treated-with-chemotherapy-the-fightdigo-study
#11
Marie-Amélie Ordan, Camille Mazza, Coralie Barbe, Marine Perrier, Damien Botsen, Yohann Renard, Johanna Moreau, Mathilde Brasseur, Barbara Taillière, Éric Bertin, Olivier Bouché
BACKGROUND: Handgrip strength (HGS) is a widely studied noninvasive test. Weak strength (dynapenia) seems to be associated with high morbidity and mortality in different populations, notably oncology populations. Despite this, HGS testing is not used in daily practice in oncology. The study was aimed at evaluating the feasibility and acceptability of HGS testing in patients with digestive cancer treated with ambulatory chemotherapy. METHODS: In this prospective, single-center study, enrolled patients were followed for 6 months...
April 1, 2018: Cancer
https://www.readbyqxmd.com/read/29212996/-a-comparison-of-the-associations-of-dynapenia-and-sarcopenia-with-fear-of-falling-in-elderly-diabetic-patients
#12
Satoshi Ida, Kazuya Murata, Yuki Ishihara, Kanako Imataka, Ryutaro Kaneko, Ryoko Fujiwara, Hiroka Takahashi
AIM: To comparatively investigate whether dynapenia and sarcopenia, as defined by the Asian Working Group for Sarcopenia (AWGS), are associated with fear of falling in elderly patients with diabetes. METHODS: The subjects were outpatients with diabetes who were at least 65 years of age when they visited our hospital. Sarcopenia was evaluated based on the AWGS definition. The cutoff values for the appendicular skeletal mass index (multi-frequency bioelectrical impedance method), grip strength, and walking speed were, respectively, 7...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/29091148/relation-between-functional-mobility-and-dynapenia-in-institutionalized-frail-elderly
#13
Antonio Vinicius Soares, Elessandra Marcelino, Késsia Cristina Maia, Noé Gomes Borges
OBJECTIVE: To investigate the relation between functional mobility and dynapenia in institutionalized frail elderly. METHODS: A descriptive, correlational study involving 26 institutionalized elderly men and women, mean age 82.3±6 years. The instruments employed were the Mini Mental State Examination, the Geriatric Depression Scale, the International Physical Activity Questionnaire, the Timed Up and Go test, a handgrip dynamometer and a portable dynamometer for large muscle groups (shoulder, elbow and hip flexors, knee extensors and ankle dorsiflexors)...
July 2017: Einstein
https://www.readbyqxmd.com/read/29033231/the-combination-of-dynapenia-and-abdominal-obesity-as-a-risk-factor-for-worse-trajectories-of-iadl-disability-among-older-adults
#14
Tiago da Silva Alexandre, Shaun Scholes, Jair Licio Ferreira Santos, Yeda Aparecida de Oliveira Duarte, Cesar de Oliveira
BACKGROUND/OBJECTIVES: The concept of dynapenic obesity has been gaining great attention recently. However, there is little epidemiological evidence demonstrating that dynapenic abdominal obese individuals have worse trajectories of disability than those with dynapenia and abdominal obesity alone. Our aim was to investigate whether dynapenia combined with abdominal obesity can result in worse trajectories of instrumental activities of daily living (IADL) among English and Brazilian older adults over eight and ten years of follow-up, respectively...
October 2, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28986697/targeting-mitochondrial-function-and-proteostasis-to-mitigate-dynapenia
#15
REVIEW
Robert V Musci, Karyn L Hamilton, Benjamin F Miller
Traditionally, interventions to treat skeletal muscle aging have largely targeted sarcopenia-the age-related loss of skeletal muscle mass. Dynapenia refers to the age-related loss in skeletal muscle function due to factors outside of muscle mass, which helps to inform treatment strategies for aging skeletal muscle. There is evidence that mechanisms to maintain protein homeostasis and proteostasis, deteriorate with age. One key mechanism to maintain proteostasis is protein turnover, which is an energetically costly process...
January 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28827697/gait-speed-rather-than-dynapenia-is-a-simple-indicator-for-complex-care-needs-a-cross-sectional-study-using-minimum-data-set
#16
Tzu-Ya Huang, Chih-Kuang Liang, Hsiu-Chu Shen, Hon-I Chen, Mei-Chen Liao, Ming-Yueh Chou, Yu-Te Lin, Liang-Kung Chen
The impact of dynapenia on the complexity of care for residents of long-term care facilities (LTCF) remains unclear. The present study evaluated associations between dynapenia, care problems and care complexity in 504 residents of Veterans Care Homes (VCHs) in Taiwan. Subjects with dynapenia, defined as low muscle strength (handgrip strength <26 kg), were older adults with lower body mass index (BMI), slow gait speed, and higher numbers of Resident Assessment Protocol (RAP) triggers. After adjusting for age, education, BMI, and Charlson's comorbidity index (CCI), only age, education, BMI and gait speed were independently associated with higher numbers of RAP triggers, but not dynapenia or handgrip strength (kg)...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28676289/differential-characteristics-of-skeletal-muscle-in-community-dwelling-older-adults
#17
Minoru Yamada, Yosuke Kimura, Daisuke Ishiyama, Naohito Nishio, Yuki Abe, Tomohiro Kakehi, Junko Fujimoto, Tomoya Tanaka, Shunsuke Ohji, Yuhei Otobe, Shingo Koyama, Yukiko Okajima, Hidenori Arai
BACKGROUND: Sarcopenia is diagnosed on the basis of skeletal muscle mass and muscle strength/function. However, more simple and accurate measures for muscle mass and muscle strength/function should be explored. OBJECTIVE: The aim of this study was to compare the skeletal muscle characteristics at each stage of sarcopenia (normal, presarcopenia, dynapenia, and sarcopenia) via ultrasonography, multifrequency bioelectrical impedance analysis (BIA), and physical assessment batteries in community-dwelling older adults...
July 1, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28647293/dynapenic-obesity-as-an-associated-factor-to-lipid-and-glucose-metabolism-disorders-and-metabolic-syndrome-in-older-adults%C3%A2-%C3%A2-findings-from-sabe-study
#18
Tiago da Silva Alexandre, Mylène Aubertin-Leheudre, Lívia Pinheiro Carvalho, Roberta de Oliveira Máximo, Ligiana Pires Corona, Tábatta Renata Pereira de Brito, Daniella Pires Nunes, Jair Licio Ferreira Santos, Yeda Aparecida de Oliveira Duarte, Maria Lúcia Lebrão
BACKGROUND & AIMS: There is little evidence showing that dynapenic obesity is associated with lipid and glucose metabolism disorders, high blood pressure, chronic disease and metabolic syndrome. Our aim was to analyze whether dynapenic abdominal obesity can be associated with lipid and glucose metabolism disorders, high blood pressure, metabolic syndrome and cardiovascular diseases in older adults living in São Paulo. METHODS: This cross-sectional study included 833 older adults who took part of the third wave of the Health, Well-being and Aging Study in 2010...
June 10, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28549839/vitamin-b12-deficiency-might-be-related-to-sarcopenia-in-older-adults
#19
Esra Ates Bulut, Pinar Soysal, Ali Ekrem Aydin, Ozge Dokuzlar, Suleyman Emre Kocyigit, Ahmet Turan Isik
Sarcopenia and dynapenia are related to repeated falls, mobility restriction, depression, frailty, increased mortality and morbidity. The aim of this study is to evaluate the relationship between vitamin B12 deficiency and sarcopenia in older adults. 403 patients, who attended to outpatient clinic and underwent comprehensive geriatric assessment, were included study. All cases' skeletal muscle mass (SMM), walking speed and hand grip strength were recorded by bioimpedance, 4meter walking test and hand dynamometer respectively...
September 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28462119/whole-body-vibration-as-a-potential-countermeasure-for-dynapenia-and-arterial-stiffness
#20
REVIEW
Arturo Figueroa, Salvador J Jaime, Stacey Alvarez-Alvarado
Age-related decreases in muscle mass and strength are associated with decreased mobility, quality of life, and increased cardiovascular risk. Coupled with the prevalence of obesity, the risk of death becomes substantially greater. Resistance training (RT) has a well-documented beneficial impact on muscle mass and strength in young and older adults, although the high-intensity needed to elicit these adaptations may have a detrimental or negligible impact on vascular function, specifically on arterial stiffness...
September 2016: Integrative Medicine Research
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