scholarly journals Testosterone but not estradiol level is positively related to muscle strength and physical performance independent of muscle mass: a cross-sectional study in 1489 older men

2011 ◽  
Vol 164 (5) ◽  
pp. 811-817 ◽  
Author(s):  
Tung Wai Auyeung ◽  
Jenny Shun Wah Lee ◽  
Timothy Kwok ◽  
Jason Leung ◽  
Claes Ohlsson ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Grip Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Older Men ◽  
Community Dwelling ◽  
Sex Hormone ◽  
Sex Hormone Binding Globulin ◽  
Cross Sectional ◽  
Skeletal Mass

ObjectiveTo examine the relationship between different measures of testosterone and estradiol (E2), muscle mass, muscle strength, and physical performance; and to test whether the association of sex hormone level with muscle strength and physical performance was independent of muscle mass.Design and methodsA cross-sectional survey on 1489 community-dwelling men older than 64 years of age. Serum levels of testosterone and E2were measured by mass spectrometry, and sex hormone-binding globulin (SHBG) levels were measured by immunoradioassay. Muscle mass was examined by dual-energy X-ray absorptiometry and physical performance was assessed by hand-grip strength, gait speed, step length and chair-stand test.ResultsAppendicular skeletal mass (ASM) was positively associated with total testosterone (TT;P<0.001), free testosterone (FT;P<0.001), and total E2(P<0.001) but not with free E2(P=0.102). After adjustment for age, serum SHBG and relative ASM, both TT and FT were significantly associated with grip strength, narrow-walk speed and the composite neuromuscular score. Higher total E2, but not free E2was associated with lower grip strength (P<0.05) after adjustment for age, FT, SHBG and relative ASM.ConclusionsTestosterone level was related to both muscle mass, strength and physical performance. Total E2level, though related to muscle mass positively, affected muscle strength adversely in older men.

scholarly journals Assessment of Muscle Quality and Quantity for the Diagnosis of Sarcopenia Using Mid-Thigh Computed Tomography : A Cohort Study

2020 ◽  
Author(s):  
Hiroki Oba ◽  
Yasumoto Matsui ◽  
Hidenori Arai ◽  
Tsuyoshi Watanabe ◽  
Hiroki Iida ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Motor Function ◽  
Mass Measurement ◽  
Muscle Quality ◽  
Cross Sectional ◽  
Skeletal Mass ◽  
Low Mass

Abstract BackgroundPreviously, sarcopenia was diagnosed based on walking speed, grip strength, and muscle mass. However, recent consensus has proposed a concern regarding the use of muscle mass measurement for sarcopenia diagnosis due to lack of accuracy; therefore, new assessment methods in clinical practice are required. We compared computed tomography (CT) with various motor function tests to determine the validity of CT as a potential diagnostic method for sarcopenia.MethodsIn total, 214 patients who were examined at our center during the study period (2016–2017) were included in the study. Single-slice CT scan of the mid-thigh region was performed, from which cross-sectional area (CSA) and CT attenuation value (CTV) of quadriceps femoris were evaluated for each subject. Other assessments included skeletal mass index, muscle strength and physical performance. Furthermore, subjects were classified into four groups: normal, low muscle mass (low mass), poor muscle function/strength (poor function), and sarcopenia.ResultsCSA and muscle strength exhibited the strongest correlation. Some physical performance tests showed the strongest correlation with CTV. CSA was significantly reduced both in men and women with low mass and sarcopenia group (p < 0.01), whereas CTV was significantly lower in men with sarcopenia group and in women with poor function and sarcopenia group (p < 0.01).ConclusionsCSA mostly reflects muscle strength, whereas CTV mostly reflects physical performance. CT with measurements of CSA and CTV enables the evaluation of muscle mass and quality simultaneously. Thus, CT is thought to be useful for the assessment of motor function and diagnosis of sarcopenia.

scholarly journals Prevalence of sarcopenia in community-dwelling older adults in Ireland: comparison of EWGSOP1 and EWGSOP2 definitions

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Caoileann Murphy ◽  
Aoibheann McMorrow ◽  
Ellen Flanagan ◽  
Helen Cummins ◽  
Sinead McCarthy ◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Clinical Investigation ◽  
Community Dwelling ◽  
Muscle Disease ◽  
Cross Sectional ◽  
European Working ◽  
Community Dwelling Older Adults

AbstractSarcopenia is a muscle disease rooted in adverse muscle changes that accrue across a lifetime. It is an independent risk factor for numerous adverse health outcomes. In 2010, the European Working Group on Sarcopenia in Older People (EWGSOP) published a definition for the identification of people with sarcopenia (EWGSOP1). In 2018, this definition was updated based on the newest evidence (EWGSOP2), with the focus now on low muscle strength rather than low muscle quantity as the key characteristic of sarcopenia. In addition, EWGSOP2 provides clear cut-off points for measurements of variables that identify sarcopenia. The aim of this study was to determine the prevalence of sarcopenia among community-dwelling older adults in Ireland for the first time and to assess agreement between the EWGSOP1 and EWGSOP2 definitions. In a cross-sectional analysis, 490 community-dwelling adults (age 78.4 ± 8.0 y, body mass index 27.6 ± 5.1 kg/m2) were assessed. Skeletal muscle mass was estimated using bioelectrical impedance analysis, muscle strength was measured via handgrip dynamometry and physical performance via the Short Physical Performance Battery. Sarcopenia was defined according to both the 2010 criteria (EWGSOP1) and the updated 2018 criteria (EWGSOP2). Using the EWGSOP1 criteria, the prevalence of sarcopenia was 7.1% (2.6% sarcopenia, 4.5% severe sarcopenia) and 3.6% were classified as pre-sarcopenic (low muscle mass without a decrement in strength or physical performance). Using the EWGSOP2 criteria, the prevalence of sarcopenia was 5.5% (1.6% sarcopenia, 3.9% severe sarcopenia) and 23.4 % were classified as having low strength but without a decrement in muscle mass. Five of the participants who were classified as sarcopenic (2 sarcopenia, 3 severe sarcopenia) by EWGSOP1 were classified as “normal” using the EWGSOP2 criteria. In conclusion, the prevalence of sarcopenia in community-dwelling older adults in Ireland is in line with the prevalence reported in other European countries using the EWGSOP1 criteria (3.3–11.4 %). To our knowledge this is the first study to compare the prevalence based on the EWGSOP1 and the EWGSOP2 criteria. We report a slightly lower prevalence using the EWGSOP2 definition compared to the EWGSOP1 definition. Importantly however, in contrast to EWGSOP1, the EWGSOP2 definition identified a substantial proportion of older adults with poor strength in the absence of overt sarcopenia (23.4%). These older adults represent a group who would benefit from further clinical investigation and intervention.

scholarly journals Lower sex hormone-binding globulin is more strongly associated with metabolic syndrome than lower total testosterone in older men: the Health in Men Study

2008 ◽  
Vol 158 (6) ◽  
pp. 785-792 ◽  
Author(s):  
S A Paul Chubb ◽  
Zoë Hyde ◽  
Osvaldo P Almeida ◽  
Leon Flicker ◽  
Paul E Norman ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Free Testosterone ◽  
Older Men ◽  
Community Dwelling ◽  
Sex Hormone ◽  
Mass Action ◽  
Sex Hormone Binding Globulin ◽  
Total Testosterone ◽  
Hormone Binding ◽  
Cross Sectional

BackgroundReduced circulating testosterone and sex hormone-binding globulin (SHBG) are implicated as risk factors for metabolic syndrome. As SHBG increases with age while testosterone declines, we examined the relative contributions of SHBG and testosterone to the risk of metabolic syndrome in older men.MethodsWe conducted a cross-sectional study of 2502 community-dwelling men aged ≥70 years without known diabetes. Metabolic syndrome was defined using the National Cholesterol Education Program-Third Adult Treatment Panel (NCEP-ATPIII) criteria. Early morning fasting sera were assayed for total testosterone, SHBG and LH. Free testosterone was calculated using mass action equations.ResultsThere were 602 men with metabolic syndrome (24.1%). The risk of metabolic syndrome increased for total testosterone <20 nmol/l, SHBG <50 nmol/l and free testosterone <300 pmol/l. In univariate analyses SHBG was associated with all five components of metabolic syndrome, total testosterone was associated with all except hypertension, and free testosterone was associated only with waist circumference and triglycerides. In multivariate analysis, both total testosterone and especially SHBG remained associated with metabolic syndrome, with odds ratios of 1.34 (95% confidence interval (CI): 1.18–1.52) and 1.77 (95% CI: 1.53–2.06) respectively. Men with hypogonadotrophic hypogonadism (total testosterone <8 nmol/l, LH ≤12 IU/l) had the highest prevalence of metabolic syndrome (53%,P<0.001).ConclusionsLower SHBG is more strongly associated with metabolic syndrome than lower total testosterone in community-dwelling older men. SHBG may be the primary driver of these relationships, possibly reflecting its relationship with insulin sensitivity. Further studies should examine whether measures that raise SHBG protect against the development of metabolic syndrome in older men.

scholarly journals Cross-sectional associations among P3NP, HtrA, Hsp70, Apelin and sarcopenia in Taiwanese population

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yuan-Yuei Chen ◽  
Yi-Lin Chiu ◽  
Tung-Wei Kao ◽  
Tao-Chun Peng ◽  
Hui-Fang Yang ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Mrna Expression ◽  
Grip Strength ◽  
Muscle Mass ◽  
Hand Grip Strength ◽  
Community Dwelling ◽  
Cutoff Point ◽  
Walking Distance ◽  
Skeletal Mass ◽  
Hand Grip

Abstract Background Sarcopenia is a multifactorial pathophysiologic condition of skeletal muscle mass and muscle strength associated with aging. However, biomarkers for predicting the occurrence of sarcopenia are rarely discussed in recent studies. The aim of the study was to elucidate the relationship between sarcopenia and several pertinent biomarkers. Methods Using the Gene Expression Omnibus (GEO) profiles of the National Center for Biotechnology Information, the associations between mRNA expression of biomarkers and sarcopenia were explored, including high temperature requirement serine protease A1 (HtrA1), procollagen type III N-terminal peptide (P3NP), apelin, and heat shock proteins 70 (Hsp72). We enrolled 408 community-dwelling adults aged 65 years and older with sarcopenia and nonsarcopenia based on the algorithm proposed by the Asian Working Group for Sarcopenia (AWGS). Muscle strength is identified by hand grip strength using an analogue isometric dynamometer. Muscle mass is estimated by skeletal mass index (SMI) using a bioelectrical impedance analysis. Physical performance is measured by gait speed using 6 m walking distance. The associations between these biomarkers and sarcopenia were determined using receiver operating characteristic (ROC) curve analysis and multivariate regression models. Results From the GEO profiles, the sarcopenia gene set variation analysis score was correlated significantly with the mRNA expression of APLNR (p < 0.001) and HSPA2 (p < 0.001). In our study, apelin was significantly associated with decreased hand grip strength with β values of − 0.137 (95%CI: − 0.229, − 0.046) in men. P3NP and HtrA1 were significantly associated with increased SMI with β values of 0.081 (95%CI: 0.010, 0.153) and 0.005 (95%CI: 0.001, 0.009) in men, respectively. Apelin and HtrA1 were inversely associated with the presence of sarcopenia with an OR of 0.543 (95%CI: 0.397–0.743) and 0.003 (95%CI: 0.001–0.890) after full adjustment. The cutoff point of HtrA1 was associated with the presence of sarcopenia with an OR of 0.254 (95%CI: 0.083–0.778) in men. The cutoff point of apelin was negatively associated with the presence of sarcopenia with an OR of 0.254 (95%CI: 0.083–0.778). Conclusion Our study highlights that P3NP, HtrA, and apelin are useful for diagnosis of sarcopenia in the clinical setting.

scholarly journals Relationship Between Tooth Loss and Sarcopenia in Chinese Suburban Community-dwelling Older Adults

2021 ◽  
Author(s):  
Feng Wang ◽  
Jingru Wang ◽  
Peipei Han ◽  
Yuewen Liu ◽  
Weibo Ma ◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Grip Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Tooth Loss ◽  
Walking Speed ◽  
Community Dwelling ◽  
Suburban Community ◽  
Community Dwelling Older Adults

Abstract Background: Both sarcopenia and loss of teeth are associated with aging. The purpose of this study was to investigate potential relationships between tooth loss and sarcopenia and components of sarcopenia, including declining muscle mass, muscle strength, and physical performance, in Chinese suburban community-dwelling older adults.Methods: The subjects were 1494 people over 60 years of age (average age: 71.64 ± 5.97 years；men, n=609) from Chongming District of Shanghai and Hangu District of Tianjin. The Asian Working Group for Sarcopenia (AWGS) criteria were used to define sarcopenia. The three basic diagnostic components of sarcopenia (muscle mass, muscle strength, and physical performance) were assessed using a bioelectrical impedance analyzer, a grip strength test, and a four-meter walk test, respectively. The subjects were divided into groups depending on self-reported loss of teeth. Results: After adjusting for confounding variables, we found no correlation between tooth loss and sarcopenia or muscle mass. However, the walking speed of female participants with at least 10 teeth lost was 0.059 m/s slower than that of participants with fewer than 10 teeth lost (P＜0.001), and grip strength was 1.577 kg lower among male participants with at least 10 teeth lost than among males with fewer than 10 teeth lost (P =0.023).Conclusion: Our results suggest that tooth loss is negatively correlated with muscle strength in males and average walking speed in females. These results are consistent with the importance of good oral hygiene in preventing declines of physical performance in older adults.

scholarly journals Relationship Between Tooth Loss and Sarcopenia in Chinese Suburban Community-Dwelling Older Adults

2021 ◽  
Author(s):  
Feng Wang ◽  
Jingru Wang ◽  
Peipei Han ◽  
Yuewen Liu ◽  
Weibo Ma ◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Grip Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Tooth Loss ◽  
Walking Speed ◽  
Community Dwelling ◽  
Suburban Community ◽  
Community Dwelling Older Adults

Abstract Background: Both sarcopenia and loss of teeth are associated with aging. The purpose of this study was to investigate potential relationships between tooth loss and sarcopenia and components of sarcopenia, including declining muscle mass, muscle strength, and physical performance, in Chinese suburban community-dwelling older adults.Methods: The subjects were 1494 people over 60 years of age (average age: 71.64 ± 5.97 years；men, n=609) from Chongming District of Shanghai and Hangu District of Tianjin. The Asian Working Group for Sarcopenia (AWGS) criteria were used to define sarcopenia. The three basic diagnostic components of sarcopenia (muscle mass, muscle strength, and physical performance) were assessed using a bioelectrical impedance analyzer, a grip strength test, and a four-meter walk test, respectively. The subjects were divided into groups depending on self-reported loss of teeth. Results: After adjusting for confounding variables, we found no correlation between tooth loss and sarcopenia or muscle mass. However, the walking speed of female participants with at least 10 teeth lost was 0.059 m/s slower than that of participants with fewer than 10 teeth lost (P＜0.001), and grip strength was 1.577 kg lower among male participants with at least 10 teeth lost than among males with fewer than 10 teeth lost (P =0.023).Conclusion: Our results suggest that tooth loss is negatively correlated with muscle strength in males and average walking speed in females. These results are consistent with the importance of good oral hygiene in preventing declines of physical performance in older adults.

scholarly journals Nutritional Intervention to Prevent the Functional Decline in Community-Dwelling Older Adults: A Systematic Review

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2820
Author(s):  
Julie Mareschal ◽  
Laurence Genton ◽  
Tinh-Hai Collet ◽  
Christophe Graf
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Nutritional Intervention ◽  
Community Dwelling ◽  
Health Concern ◽  
The Impact ◽  
Community Dwelling Older Adults

Aging is a global public health concern. From the age of 50, muscle mass, muscle strength and physical performance tend to decline. Sarcopenia and frailty are frequent in community-dwelling older adults and are associated with negative outcomes such as physical disability and mortality. Therefore, the identification of therapeutic strategies to prevent and fight sarcopenia and frailty is of great interest. This systematic review aims to summarize the impact of nutritional interventions alone or combined with other treatment(s) in older community-dwelling adults on (1) the three indicators of sarcopenia, i.e., muscle mass, muscle strength and physical performance; and (2) the hospitalization and readmission rates. The literature search was performed on Medline and included studies published between January 2010 and June 2020. We included randomized controlled trials of nutritional intervention alone or combined with other treatment(s) in community-living subjects aged 65 or older. In total, 28 articles were retained in the final analysis. This systematic review highlights the importance of a multimodal approach, including at least a combined nutritional and exercise intervention, to improve muscle mass, muscle strength and physical performance, in community-dwelling older adults but especially in frail and sarcopenic subjects. Regarding hospitalization and readmission rate, data were limited and inconclusive. Future studies should continue to investigate the effects of such interventions in this population.

Association between Muscle Mass and Muscle Strength with Physical Performance in Elderly in Surabaya

2020 ◽  
Vol 2 (1) ◽  
pp. 24
Author(s):  
Titin Kristiana ◽  
Novira Widajanti ◽  
Rwahita Satyawati
Keyword(s):  
Muscle Strength ◽  
Muscle Mass ◽  
Physical Performance ◽  
Handgrip Strength ◽  
Positive Association ◽  
The Elderly ◽  
Bivariate Analysis ◽  
Weak Correlation ◽  
Elderly Age ◽  
Cross Sectional

ABSTRACTBackground: Sarcopenia is a decrease in muscle mass and strength that mostly happens in the elderly. Sarcopenia is a problem that is often found in the elderly who are at risk of disability, hospitalization and death. This data on muscle mass and strength with physical performance is expected to support the theory of sarcopenia and as a reference in promoting and preventing sarcopenia in elderly.Aims: To analyze the association between muscle mass and strength (handgrip strength) with physical performance assessed using Short Physical Performance Battery (SPPB) in an elderly community.Methods: This study was a cross-sectional observational analytic study involving 203 sample of elderly (age >60 years old). The subjects were categorized as the strong and weak muscle mass and muscle strength, also the high, moderate and low physical performance. We used Bioimpedance Analysis (BIA) and hand dynamometer to measure muscle mass and muscle strength (handgrip strength). SPPB was used to assess physical performance.The association between muscle mass and strength with physical performance was displayed in bivariate analysis with chi square.Result: Of all 203 subjects, 57 were males and 146 were females. Chi square test showed association between muscle strength (handgrip strength) with physical performance (SPPB) (p=0.001), with a weak correlation (r=0.26) and no association between muscle mass and physical performance (SPPB) (p=0.517).Conclusion: There is a positive association between muscle strength with physical performance, with a weak correlation and no association between muscle mass and physical performance in the elderly community in Surabaya.

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