scholarly journals Prevalence of Sarcopenia According to the Method Used to Determine Physical Performance

2021 ◽  
Author(s):  
Carlos Sáez ◽  
Sara García-Isidoro

Sarcopenia is currently defined as a progressive and generalized skeletal muscle disorder that occurs with advancing age and is associated with an increased likelihood of adverse outcomes. Low levels of measures for muscle strength, muscle quantity, and physical performance define sarcopenia. In this chapter, we will see that the prevalence of a low value of physical performance will be different according to the method used to measure this parameter, and thus, it would be foreseeable to think that the prevalence of sarcopenia will also be different according to the method used. However, despite the differences found in physical performance, we will show that the prevalence of sarcopenia appears to be regardless of the method used for physical performance, and therefore, how is it possible that having a significant difference in the prevalence of physical performance depending on the method chosen, the prevalence of sarcopenia has an almost perfect agreement? To answer these questions, a new simplified model is studied, defining sarcopenia as low muscle strength and low muscle mass and without taking physical performance into account. Finally, we will see that, indeed, physical performance does not seem to be decisive or necessary for the diagnosis of sarcopenia.

2021 ◽  
Vol 162 (1) ◽  
pp. 3-12
Author(s):  
Alajos Pár ◽  
Jenő Péter Hegyi ◽  
Szilárd Váncsa ◽  
Gabriella Pár

Összefoglaló. A sarcopenia progresszív, generalizált vázizombetegség az izomtömeg fogyásával és az izomfunkció romlásával, számos szövődménnyel, rossz prognózissal. A sarcopeniát eredetileg életkorfüggő, idősekben jelentkező kórképnek írták le (primaer sarcopenia). Később derült ki, hogy fiatal- és középkorú személyeknél is előfordul, különböző betegségekhez társulva (secundaer sarcopenia). A közlemény áttekintést ad a betegség patofiziológiájáról, a fizikai inaktivitás, az inzulinrezisztencia, a krónikus gyulladás, a citokinek, hepatokinek és miokinek szerepéről az izomkárosodásban, valamint az izom, a zsírszövet és a máj funkcionális kapcsolatairól nem alkoholos zsírmájban és cirrhosisban. A diagnózis felállítását számos funkcionális próba, illetve vizsgálóeljárás teszi lehetővé. Az izomerő-csökkenés igazolása a legfontosabb paraméter (kézszorító erő). Az izomtömegvesztést kettős energiájú röntgenabszorpciometria, bioelektromosimpedancia-analízis, komputertomográfia vagy mágneses rezonanciás képalkotó vizsgálat mutathatja ki, megerősítve a kórismét, a fizikai teljesítmény csökkenése pedig a sarcopenia súlyosságát jelzi. A sarcopenia kezelése és a progresszió prevenciója a fiatalkorban elkezdett és élethosszig tartó rendszeres fizikai aktivitáson, a protein-kalória túltápláláson és a gyógyszeres terápián alapul, beleértve a D-vitamin és a tesztoszteron pótlását, az elágazó láncú aminosavak és az L-karnitin adását. Másodlagos sarcopeniában az alapbetegség kezelése is szükséges. Orv Hetil. 2021; 162(1): 3–12. Summary. Sarcopenia is a progressive, generalized skeletal muscle disease with the loss of muscle mass and function, associated with adverse outcomes and poor prognosis. Sarcopenia first was regarded as an age-related disorder of older people (primary sarcopenia). Later it turned out that it can also occur in young age due to a range of chronic disorders such as cancer, anorexia or malnutrition (secondary sarcopenia). This paper overviews the pathophysiology of sarcopenia and the factors involved in the muscle mass loss, i.e., physical inactivity, insulin resistance, low-grade chronic inflammation, hepatokines and myokines. The basic feature is the imbalance between proteolysis and protein synthesis that leads to muscle atrophy. We discuss the relationship between liver, muscle and adipose tissue in non-alcoholic fatty liver disease and cirrhosis. To diagnose sarcopenia, there are a range of tests and tools that measure muscle strength and muscle mass as well as physical performance. The low muscle strength (hand grip strength) is the primary parameter of the diagnosis, the best measure of muscle function. The loss of skeletal muscle mass assessed by dual-energy X-ray absorptiometry, bioelectric impedance analysis, computer tomography, or magnetic resonance imaging confirms diagnosis, while the decrease in physical performance reflects severe sarcopenia. For the treatment and prevention of progression, the most important is the regular physical activity started from early adulthood, and healthy diet containing protein-calorie hyperalimentation. In addition, a pharmacotherapy with the supplementation of vitamin D and testosterone, furthermore, the administration of L-carnitine and branched-chain amino acids can be recommended. In the case of secondary sarcopenia, the underlying disease also requires treatment. Orv Hetil. 2021; 162(1): 3–12.


2021 ◽  
Vol 21 ◽  
Author(s):  
Johanna Abrigo ◽  
Felipe Simon ◽  
Daniel Cabrera ◽  
Cristian Vilos ◽  
Claudio Cabello-Verrugio

Background: Sarcopenia is a progressive and generalized skeletal muscle disorder characterized by muscle weakness, loss of muscle mass, and decline in the capacity of force generation. Aging can cause sarcopenia. Several therapeutic strategies have been evaluated to prevent or alleviate this disorder. One of them is angiotensin 1-7 [Ang-(1-7)], an anti-atrophic peptide for skeletal muscles that regulates decreased muscle mass for several causes, including aging. Another regulator of muscle mass and function is andrographolide, a bicyclic diterpenoid lactone that decreases the nuclear factor kappa B (NF-κB) signaling and attenuates the severity of some muscle diseases. Objective: Evaluate the effect of combined administration of Ang-(1-7) with andrographolide on the physical performance, muscle strength, and fiber´s diameter in a murine model of sarcopenia by aging. Methods: Aged male mice of the C57BL/6J strain were treated with Andrographolide, Ang-(1-7), or combined for three months. The physical performance, muscle strength, and fiber´s diameter were measured. Results: The results showed that aged mice (24 months old) treated with Ang-(1-7) or Andrographolide improved their performance on a treadmill test, muscle strength, and their fiber´s diameter compared to aged mice without treatment. The combined administration of Ang-(1-7) with andrographolide to aged mice has an enhanced synergically effect on physical performance, muscle strength, and fiber´s diameter. Conclusion: Our results indicated that in aged mice, the effects of andrographolide and Ang-(1-7) on muscle function, strength, and fiber´s diameter are potentiated.


Blood ◽  
2018 ◽  
Vol 132 (Supplement 1) ◽  
pp. 4851-4851 ◽  
Author(s):  
Takahiro Kamiya ◽  
Kota Mizuno ◽  
Shinji Ogura ◽  
Chisako Ito ◽  
Yuriko Fujita ◽  
...  

Abstract [Introduction] Sarcopenia is characterized by age-related decline of skeletal muscle plus low muscle strength and/or physical performance. Previous studies have confirmed the association of sarcopenia and adverse health outcomes, such as falls, disability, hospital admission, long term care placement, poorer quality of life, and mortality, which denotes the importance of sarcopenia in the health care for older people. Population-based studies reported that the prevalence of sarcopenia in Japanese healthy adults aged≥60 years was 8.5% among men and 8.0% among women. Sarcopenia was recently identified as a poor prognostic factor in patients with solid tumors. In cancer patients, sarcopenia is associated with treatment failure, chemotherapy toxicity, and a shorter time to tumor progression related to survival. In contrast to solid tumors, the clinical relevance of sarcopenia in hematologic malignancies is still unknown. The present study investigated the prevalence of sarcopenia based on the criteria of the Asian Working Group for Sarcopenia (AWGS) in elderly patients with hematologic malignancies. [Patients and Methods] We prospectively analyzed 56 elderly patients aged≥60 years with hematologic malignancies diagnosed at our institution between 2015 and 2018. Appendicular skeletal muscle mass (ASM) was measured at diagnosis by using multifrequency bioelectrical impedance analysis (BIA) (InBody 720). BIA is suitable for body composition monitoring in elderly patients as a fast, noninvasive, and convenient method. Skeletal muscle index (SMI) was defined as the ratio of ASM divided by height in square centimeters. We also evaluated physical function by using short physical performance buttery (SPPB). Sarcopenia was defined according to the AWGS algorithm, in which the patient has low muscle mass, and low muscle strength or low physical performance. Low muscle mass was defined as a skeletal muscle index (SMI: ASM/height2) of <7.0kg/m2 in men and <5.7kg/m2 in women. Pre-sarcopenia was defined as having only low muscle mass. Low muscle strength was defined as a handgrip strength of <26kg in men and <18kg in women; and low physical performance, as a gait speed of <0.8m/sec. The study protocol was approved by the Institutional Review Board of Yokohama Municipal Citizen's Hospital, and it was carried out in accordance with the Declaration of Helsinki. [Results] Median age at diagnosis was 77 years (60-93 years), with 34 males and 22 females. The diagnosis included non-Hodgkin lymphoma (NHL, n=36), multiple myeloma (MM, n=9), myelodysplastic syndrome (MDS, n=10), and acute myeloid leukemia (AML, n=1). The prevalence of low muscle mass (pre-sarcopenia) was 41% (14/34) in men and 77% (17/22) in women. The prevalence of low muscle strength was 35% (12/34) in men and 41% (9/22) in women. The prevalence of low physical performance status (Gait speed:<0.8m/sec) was 6% (2/34) in men and 9% (2/22) in women. The prevalence of sarcopenia based on a diagnosis of low muscle mass, low muscle strength, and low physical performance was 24% (8/34) in men and (8/22) 36% in women. The prevalence of low SPPB score (<10) was 9% (3/34) in men and 18% (4/22) in women. Among 36 NHL patients, the diagnosis included DLBCL (n=15), FL (n=10), MALT (n=3), SMZBCL (n=3), MCL (n=2), and others. The prevalence of sarcopenia was 25% (5/20) in men and 50% (8/16) in women. The mean age was 83 years in the sarcopenic group (n=13, 36%) and 73 years in the non-sarcopenic group (n=23, 64%) (p=0.0001). Sarcopenic patients displayed a similar level of serum albumin, LDH, sIL2-R, and BMI when compared with patients who were not sarcopenic. However, sarcopenic patients displayed significantly lower levels of serum dehydroepiandrosterone-sulfate (DHEA-S) and a higher CCI score than patients who were not sarcopenic. Sarcopenic patients failed to complete the treatment planned as compared with non-sarcopenic patients (p=0.001). [Conclusion] These results demonstrated that the prevalence of sarcopenia in elderly patients with hematologic malignancies is higher than that in the Japanese general elderly population. In particular, the prevalence of sarcopenia in female NHL patients is higher than that in male NHL patients. Several factors such as age, serum DHEA-S or comorbidities may affect the incidence of sarcopenia. Since our results are based on a small-sized analysis, further large prospective studies are warranted to verify this conclusion. Disclosures No relevant conflicts of interest to declare.


2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Young Hye Cho ◽  
Sang Yeoup Lee ◽  
Cheol Min Kim ◽  
Nam Deuk Kim ◽  
Sangmin Choe ◽  
...  

Ursolic acid (UA) is the major active component of the loquat leaf extract (LLE) and several previous studies have indicated that UA may have the ability to prevent skeletal muscle atrophy. Therefore, we conducted a randomized, double-blind, and placebo-controlled study to investigate the effects of the LLE on muscle strength, muscle mass, muscle function, and metabolic markers in healthy adults; the safety of the compound was also evaluated. We examined the peak torque/body weight at 60°/s knee extension, handgrip strength, skeletal muscle mass, physical performance, and metabolic parameters at baseline, as well as after 4 and 12 weeks of intervention. Either 500 mg of LLE (50.94 mg of UA) or a placebo was administered to fifty-four healthy adults each day for 12 weeks; no differences in muscle strength, muscle mass, and physical performance were observed between the two groups. However, the right-handgrip strength of female subjects in the LLE group was found to be significantly better than that of subjects in the control group (P=0.047). Further studies are required to determine the optimal dose and duration of LLE supplementation to confirm the first-stage study results for clinical application. ClinicalTrials.gov Identifier isNCT02401113.


Author(s):  
Abeline Kapuczinski ◽  
Muhammad S. Soyfoo ◽  
Sandra De Breucker ◽  
Joëlle Margaux

AbstractFibromyalgia is a chronic disorder characterized by persistent widespread musculoskeletal pain. Patients with fibromyalgia have reduced physical activity and increased sedentary rate. The age-associated reduction of skeletal muscle mass and function is called sarcopenia. The European Working Group on Sarcopenia in Older People developed a practical clinical definition and consensus diagnostic criteria for sarcopenia. Loss of muscle function is common in fibromyalgia and in the elderly. The goal of this study is to determine whether the reduction of muscle function in fibromyalgia is related to sarcopenia according to the European Working Group on Sarcopenia in Older People criteria. Forty-five patients with fibromyalgia and thirty-nine healthy control female subjects were included. All the participants were assessed by Fibromyalgia Impact Questionnaire and SARC-F questionnaire. Muscle mass was evaluated by bioimpedance analysis, muscle strength by handgrip strength test and physical performance with the Short Physical Performance Battery. Fibromyalgia Impact Questionnaire and SARC-F scores were statistically significantly higher in the fibromyalgia group than in the control group, showing severe disease and a higher risk of sarcopenia in the fibromyalgia group (p < 0.001). Muscle strength and physical performance were statistically significantly lower in the group with fibromyalgia than in the control group (p < 0.001). There was no statistical difference between fibromyalgia and control groups regarding skeletal muscle mass (p = 0.263). Our study demonstrated a significant reduction in muscle function in fibromyalgia patients without any loss of muscle mass. Loss of muscle function without decrease in muscle mass is called dynapenia.


2021 ◽  
pp. 1-36
Author(s):  
Rachele De Giuseppe ◽  
Chiara Elena Tomasinelli ◽  
Alessandra Vincenti ◽  
Ilaria Di Napoli ◽  
Massimo Negro ◽  
...  

Abstract Background Sarcopenia (SA) is a progressive skeletal muscle disorder, associated with increased risk of adverse outcomes, including falls, fractures, physical disability and mortality. Several risks factors may contribute to the development of SA in the elderly; among them, nutrition plays a key role in muscle health. The elderly are at risk of inadequate intake in terms of micronutrients affecting muscle-homeostasis, such as B vitamins, related to homocysteine (Hcy) metabolism. Objectives and Methods This narrative review analysed the association between increased Hcy levels and SA, according to the criteria of the International Working Group on Sarcopenia, the European Working Group on Sarcopenia in Older People and the Asian Working Group for Sarcopenia. The authors focused not only on SA per se but also on exploring the association between increased Hcy levels and components of SA, including muscle mass, muscle strength and physical performance. Results Results are inconsistent, except for muscle mass, showing no significant associations with Hcy levels. Conclusions Few and conflicting data emerged in this review on the association between SA and increased Hcy levels due to numerous differences between studies that change the significance of the association of Hcy and SA, as well as with the muscle strength, muscle mass and physical performance. Furthermore, because the ageing process is not uniform in the population due to differences in genetics, lifestyle and general health, chronological age fails to address the observed heterogeneity among the "elderly" of the studies reported in this revision. Therefore, further studies are still needed.


2018 ◽  
Vol 12 (2) ◽  
pp. 97 ◽  
Author(s):  
Andrea P. Rossi ◽  
Sofia Rubele ◽  
Alessia D'Introno ◽  
Elena Zoico ◽  
Piero Bradimarte ◽  
...  

Sarcopenia has been recognized as an age-related syndrome characterized by low muscle mass, low muscle strength, and low physical performance that is associated with increased likelihood of adverse outcomes including falls, fractures, hospitalization, frailty and mortality. Therefore, it is necessary to identify the condition early for applying intervention and prevention of the disastrous consequences of sarcopenia if left untreated. Clinical definition and diagnostic criteria for sarcopenia have been developed in the last years and different tools have been proposed for screening subjects with sarcopenia, evaluating the muscle mass, the muscle strength and the physical performance. In this review we analyzed the diagnostic criteria of sarcopenia and examined the current assessment tools used for the diagnosis and screening of sarcopenia.


2015 ◽  
Vol 46 (4) ◽  
pp. 292-297 ◽  
Author(s):  
Shinji Itoh ◽  
Ken Shirabe ◽  
Tomoharu Yoshizumi ◽  
Kazuki Takeishi ◽  
Norifumi Harimoto ◽  
...  

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1329.1-1329
Author(s):  
K. Inui ◽  
K. Mandai ◽  
T. Ikawa ◽  
Y. Minami ◽  
K. Ueno ◽  
...  

Background:Osteoarthritis of the knee (knee OA) decreases mobility of the elderly, which function could be significantly improved with artificial joint replacement in many cases. Successful results of the surgery depend on several factors including preoperative muscle strength of lower limbs.Objectives:We assessed morbidity and skeletal muscle mass and strength in patients with knee OA immediately before undergoing arthroplasty and investigated the relationship between impairment of mobility and skeletal muscle function.Methods:All patients scheduled to undergo knee arthroplasty at our hospital after July 2020 were assessed for basic attributes, clinical assessment, blood tests, radiography, whole-body mode DXA, knee muscle strength by dynamometer with written consent (UMIN ID: 000040940). And Japanese Cardiovascular Health Study criteria for frailty, and sarcopenia by Asian Working Group for Sarcopenia 2019 criteria were evaluated.Results:Among 46 patients (40 women, mean age 75.4 years) the overall distribution in frailty is no: 15.9%, pre-frailty: 56.8%, and frailty: 27.3%. That in sarcopenia is no: 91.3%, yes: 2.2%, and severe: 4.3%. Ninety-one % of the patients with frailty did not suffer from sarcopenia. Between the patients with frailty and those without frailty there was a significant difference in walking speed (0.71±0.29m/sec, 1.12±0.29m/sec; p=0.004 adjusted by age and sex). Meanwhile, between those 2 groups of patients no significant differences were observed in skeletal muscle mass (6.40±0.87 kg/m2, 6.59±1.09 kg/m2; p=0.35) and knee extension power (120.4±37.4 N, 143.7±67.9 N; p=0.88) adjusted by age and sex. Together with these results, decrease in lower limb motor functions of the patients with knee OA was not caused by sarcopenia. In other words, improvement of mobility in the patients with knee OA could be expected by surgical intervention because of pain relief and ROM improvement.Conclusion:In the patients with knee OA immediately before arthroplasty, frailty was not caused by sarcopenia.Disclosure of Interests:None declared.


2021 ◽  
Vol 11 (7) ◽  
pp. 3146
Author(s):  
Dongmin Lee ◽  
Kyengho Byun ◽  
Moon-Hyon Hwang ◽  
Sewon Lee

Arterial stiffness is associated with an increased risk of cardiovascular disease. Previous studies have shown that there is a negative correlation between arterial stiffness and variables such as skeletal muscle mass, muscular strength, and anaerobic power in older individuals. However, little research has been undertaken on relationships in healthy young adults. This study presents a preliminary research that investigates the association between arterial stiffness and muscular factors in healthy male college students. Twenty-three healthy young males (23.9 ± 0.5 years) participated in the study. The participants visited the laboratory, and variables including body composition, blood pressure, arterial stiffness, blood parameters, grip strength, and anaerobic power were measured. Measurements of augmentation index (AIx) and brachial-ankle pulse wave velocity (baPWV) were performed to determine arterial stiffness. There were significant positive correlations among skeletal muscle mass, muscle strength, and anaerobic power in healthy young adult males. AIx was negatively associated with a skeletal muscle mass (r = −0.785, p < 0.01), muscular strength (r = −0.500, p < 0.05), and anaerobic power (r = −0.469, p < 0.05), respectively. Likewise, AIx@75 corrected with a heart rate of 75 was negatively associated with skeletal muscle mass (r = −0.738, p < 0.01), muscular strength (r = −0.461, p < 0.05), and anaerobic power (r = −0.420, p < 0.05) respectively. However, the baPWV showed no correlation with all muscular factors. Our findings suggest that maintaining high levels of skeletal muscle mass, muscular strength, and anaerobic power from relatively young age may lower AIx.


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