Thigh Muscle Fat Infiltration Is Associated With Impaired Physical Performance Despite Remission in Cushing’s Syndrome

2020 ◽  
Vol 105 (5) ◽  
pp. e2039-e2049
Author(s):  
Luciana Martel-Duguech ◽  
Alicia Alonso-Jiménez ◽  
Helena Bascuñana ◽  
Jordi Díaz-Manera ◽  
Jaume Llauger ◽  
...  
Keyword(s):  
Physical Performance ◽  
Muscle Weakness ◽  
Menopausal Status ◽  
Fatty Infiltration ◽  
Cushing's Syndrome ◽  
Muscle Performance ◽  
Thigh Muscle ◽  
Chair Stand ◽  
Thigh Muscles ◽  
Fat Fraction

Abstract Context Muscle weakness is common in patients with Cushing’s syndrome (CS) and may persist after the resolution of hypercortisolism. Intramuscular fatty infiltration has been associated with the deterioration of muscle performance in several conditions. Objectives To quantify the degree of fatty infiltration in the thigh muscles of “cured” CS patients and evaluate the relationship between intramuscular fatty infiltration and physical performance. Design This was a cross-sectional study. Setting Tertiary referral center. Patients Thirty-six women with CS in remission, and 36 controls matched for age, BMI, menopausal status, and level of physical activity. Main Outcome Measures We analyzed the percentage fat fraction (FF) of the thigh muscles in the anterior, posterior, and combined anterior and posterior compartments using MRI and 2-point Dixon sequence. We assessed muscle function and strength using the following tests: gait speed (GS), timed up and go (TUG), 30-second chair stand, and hand grip strength. Results Fat fraction in all the compartments analyzed was increased in patients as compared with controls. The performance on TUG, 30-second chair stand, and GS was more impaired in CS patients versus controls. In patients, greater FF was negatively associated with performance on functional tests. Fat fraction in the combined anterior and posterior compartments predicted performance on TUG (ß 0.626, P < 0.000) and GS (ß -0.461, P = 0.007), after adjusting for age, BMI, menopausal status, and muscle mass. Conclusions Thigh muscle fatty infiltration is increased in “cured” CS patients and is associated with poorer muscle performance. Future studies are needed to establish therapeutic strategies to improve muscle weakness in these patients.

scholarly journals Association of Thigh Muscle Strength with Texture Features Based on Proton Density Fat Fraction Maps Derived from Chemical Shift Encoding-Based Water–Fat MRI

Diagnostics ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 302
Author(s):  
Michael Dieckmeyer ◽  
Stephanie Inhuber ◽  
Sarah Schläger ◽  
Dominik Weidlich ◽  
Muthu R. K. Mookiah ◽  
...  
Keyword(s):  
Chemical Shift ◽  
Muscle Strength ◽  
Neuromuscular Disorders ◽  
Texture Features ◽  
Thigh Muscle ◽  
Proton Density ◽  
Proton Density Fat Fraction ◽  
Thigh Muscles ◽  
Fat Fraction ◽  
Flexion Strength

Purpose: Based on conventional and quantitative magnetic resonance imaging (MRI), texture analysis (TA) has shown encouraging results as a biomarker for tissue structure. Chemical shift encoding-based water–fat MRI (CSE-MRI)-derived proton density fat fraction (PDFF) of thigh muscles has been associated with musculoskeletal, metabolic, and neuromuscular disorders and was demonstrated to predict muscle strength. The purpose of this study was to investigate PDFF-based TA of thigh muscles as a predictor of thigh muscle strength in comparison to mean PDFF. Methods: 30 healthy subjects (age = 30 ± 6 years; 15 females) underwent CSE-MRI of the lumbar spine at 3T, using a six-echo 3D spoiled gradient echo sequence. Quadriceps (EXT) and ischiocrural (FLEX) muscles were segmented to extract mean PDFF and texture features. Muscle flexion and extension strength were measured with an isokinetic dynamometer. Results: Of the eleven extracted texture features, Variance(global) showed the highest significant correlation with extension strength (p < 0.001, R2adj = 0.712), and Correlation showed the highest significant correlation with flexion strength (p = 0.016, R2adj = 0.658). Multivariate linear regression models identified Variance(global) and sex, but not PDFF, as significant predictors of extension strength (R2adj = 0.709; p < 0.001), while mean PDFF, sex, and BMI, but none of the texture features, were identified as significant predictors of flexion strength (R2adj = 0.674; p < 0.001). Conclusions: Prediction of quadriceps muscle strength can be improved beyond mean PDFF by means of TA, indicating the capability to quantify muscular fat infiltration patterns.

scholarly journals Quantitative T2 mapping accelerated by GRAPPATINI for evaluation of muscles in patients with myositis

2019 ◽  
Vol 92 (1102) ◽  
pp. 20190109 ◽  
Author(s):  
Fengdan Wang ◽  
Haiping Zhang ◽  
Chanyuan Wu ◽  
Qian Wang ◽  
Bo Hou ◽  
...  
Keyword(s):  
T2 Mapping ◽  
Quantitative Information ◽  
Thigh Muscle ◽  
Mapping Technique ◽  
Acquisition Time ◽  
T2 Relaxation ◽  
Muscle Enzymes ◽  
Scanning Time ◽  
Conventional Mri ◽  
Thigh Muscles

Objective: Dermatomyositis (DM) and polymyositis (PM) make up the largest group of potentially treatable myopathies and require early diagnosis. This study investigates whether the edema of thigh muscles in DM/PM can be quantitatively assessed by a novel accelerated T2 mapping technique—GRAPPATINI. Methods: Three conventional MR sequences and GRAPPATINI accelerated T2 mapping of bilateral thighs from 20 patients (7 DM and 13 PM) and 10 healthy volunteers were prospectively carried out on a 3 T MR scanner. Afterwards, T2 values of 477 thigh muscles from the patients and the healthy controls were manually measured. In addition, the correlations between T2 values and serum muscle enzymes in patients were also analyzed. Results: The new GRAPPATINI technique made quantitative T2 mapping of bilateral thighs feasible with a scanning time of only 2 min 18 s. Moreover, GRAPPATINI-generated T2 values of muscles from patients were markedly higher than those from healthy subjects (p < 0.001). GRAPPATINI accelerated T2 mapping appeared a more sensitive technique in that some DM/PM muscles appearing normal per conventional MRI had increased T2 relaxation time. Furthermore, GRAPPATINI-generated T2 values of DM/PM thigh muscles positively correlated with serum enzyme levels (p < 0.001), which reflected the severity of myopathy. Conclusion: GRAPPATINI can significantly shorten acquisition time of T2 mapping and may potentially be applied clinically in DM and PM. Advances in knowledge: GRAPPATINI acceleration makes T2 mapping feasible in clinical practice in providing quantitative information regarding thigh muscle inflammation in DM and PM.

Gender-Related Differences in Physical Performance among Seniors

2005 ◽  
Vol 13 (3) ◽  
pp. 239-253 ◽  
Author(s):  
Kristin Musselman ◽  
Brenda Brouwer
Keyword(s):  
Gender Differences ◽  
Physical Performance ◽  
Gait Speed ◽  
Community Dwelling ◽  
Activity Level ◽  
Muscle Performance ◽  
Related Factors ◽  
Balance Confidence ◽  
Limits Of Stability ◽  
Gender Specific

This study examined gender differences in balance, gait, and muscle performance in seniors and identified gender-specific factors contributing to physical performance. Forty (20 men, 20 women) healthy, community-dwelling seniors (74.5 ± 5.3 years) participated. Limits of stability, gait speed, lower limb flexor and extensor isokinetic concentric peak torques, self-reported activity level, and balance confidence were measured. No gender differences were detected in gait speed, limits of stability when normalized to height, activity level, or balance confidence (p≥ .188). Women were weaker than men (p≤ .007), even after controlling for weight and body-mass index, suggesting that other gender-related factors contribute to strength. Gender accounted for 18–46% of the variance in strength and served as a modifier of the relationship between activity level and strength in some muscle groups. The primary factors relating to gender-specific strength was activity level in men and body weight in women.

scholarly journals Effects of Periodic Task-Specific Test Feedback on Physical Performance in Older Adults Undertaking Band-Based Resistance Exercise

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Ryuichi Hasegawa ◽  
Mohammod Monirul Islam ◽  
Ryuji Watanabe ◽  
Naoki Tomiyama ◽  
Dennis R. Taaffe
Keyword(s):  
Older Adults ◽  
Physical Performance ◽  
Functional Mobility ◽  
Muscle Performance ◽  
Timed Up And Go ◽  
Feedback Group ◽  
Specific Test ◽  
Periodic Task ◽  
Test Feedback ◽  
Home Based

The purpose of this study was to determine the effects of periodic task-specific test feedback on performance improvement in older adults undertaking community- and home-based resistance exercises (CHBRE). Fifty-two older adults (65–83 years) were assigned to a muscular perfsormance feedback group (MPG,n=32) or a functional mobility feedback group (FMG,n=20). Both groups received exactly the same 9-week CHBRE program comprising one community-based and two home-based sessions per week. Muscle performance included arm curls and chair stands in 30 seconds, while functional mobility was determined by the timed up and go (TUG) test. MPG received fortnightly test feedback only on muscle performance and FMG received feedback only on the TUG. Following training, there was a significant (P<0.05) interaction for all performance tests with MPG improving more for the arm curls (MPG 31.4%, FMG 15.9%) and chair stands (MPG 33.7%, FMG 24.9%) while FMG improved more for the TUG (MPG-3.5%, FMG-9.7%). Results from this nonrandomized study suggest that periodic test feedback during resistance training may enhance task-specific physical performance in older persons, thereby augmenting reserve capacity or potentially reducing the time required to recover functional abilities.

scholarly journals Altered Body Composition of Psoas and Thigh Muscles in Relation to Frailty and Severity of Parkinson's Disease

2019 ◽  
Vol 16 (19) ◽  
pp. 3667 ◽  
Author(s):  
Chiang ◽  
Chen ◽  
Lin
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Disease Severity ◽  
Fat Content ◽  
Cross Sectional Area ◽  
Muscle Quality ◽  
Sectional Area ◽  
Cross Sectional ◽  
Thigh Muscles ◽  
Fat Fraction

Background: To investigate the relationship between fat content and the cross-sectional area of psoas and thigh muscles, and clinical severity in patients with Parkinson’s disease. Materials and Methods: Twenty-five patients and 20 age- and sex-matched normal controls were recruited. All subjects underwent MRI study to determine the fat content of the bilateral psoas and thigh muscles. Muscle quality was measured by grasp, walking speed, and cross-sectional area. All patients underwent clinical surveys to evaluate disease severity and frailty, and analyses of the correlations between muscle quality and disease severity were performed. Results: Compared with the controls, patients exhibited higher fatty content in the measured muscles. The higher fat infiltration of measured muscles was significantly correlated with increased disease severity and frailty in patients. The fat fraction of the bilateral medial compartment of the thigh was correlated with the Unified Parkinson Disease Rating Scale-I results and the fat fraction of the bilateral anterior compartment of the thigh was correlated with weakness and exhaustion in patients. Conclusions: Decreased quality in psoas and thigh muscles is prominent in Parkinson’s disease which is further associated with disease severity and frailty. Awareness of the risk of sarcopenia and associated sequelae might improve patient care and outcomes.

Decrease in physical performance during the hospitalisation phase of haematopoietic stem cell transplantation

2019 ◽  
Vol 26 (11) ◽  
pp. 1-12 ◽  
Author(s):  
Carine Lumi ◽  
Fabrício Edler Macagnan ◽  
Adriana Kessler ◽  
Priscila De Toni ◽  
Adriana Maisonnave Raffone
Keyword(s):  
Stem Cell ◽  
Muscle Strength ◽  
Stem Cell Transplantation ◽  
Cell Transplantation ◽  
Physical Performance ◽  
Haematopoietic Stem Cell Transplantation ◽  
Haematopoietic Stem Cell ◽  
Chair Stand ◽  
Stand Test ◽  
Chair Stand Test

Background/Aims The negative impact caused by haematopoietic stem cell transplantation still requires further investigation. This study aims to investigate the effects of this procedure on skeletal muscle strength, functional performance and fatigue sensation in the hospitalisation phase. Methods This prospective cohort study aimed to assess physical performance by measuring ventilatory muscle strength, peripheral muscle strength and fatigue in patients who underwent haematopoietic stem cell transplantation. Results The sample consisted of 30 patients of both sexes (63% men) with a mean age of 48.6 ± 13.2 years. Maximal inspiratory pressure and expiratory pressure decreased by 19% and 16%, respectively (P<0.001). There was a 16% reduction in handgrip strength in the second assessment (P<0.001), as well as a reduction of 30.6% in the 30-Second Chair Stand Test (P<0.001). The fatigue test score increased exponentially (60%) (P<0.001). Individuals with worse results in the 30-Second Chair Stand Test remained hospitalised for a longer period than those with better results (P=0.024). Conclusions This study concluded that after the transplantation of haematopoietic stem cells there was a relevant reduction in the results of the applied tests, as well as an increase in fatigue.

117 Study of Development and Validation of the Multi-Sensor based Kiosk Performing Short Physical Performance Battery Automatically

2019 ◽  
Vol 48 (Supplement_4) ◽  
pp. iv28-iv33
Author(s):  
Heewon Jung ◽  
Jae-Young Lim ◽  
Jihong Park
Keyword(s):  
Older Adults ◽  
Physical Performance ◽  
Gait Speed ◽  
Physical Therapist ◽  
Short Physical Performance Battery ◽  
Standing Balance ◽  
Clinical Test ◽  
Chair Stand ◽  
Stand Test ◽  
Chair Stand Test

Abstract Background Short physical performance battery (SPPB) is a well-accepted clinical test to assess vulnerability in older adults. We aimed to develop and validate a multi-sensor based kiosk (e-SPPB kiosk) which can perform automated measurement for SPPB. Methods The e-SPPB kiosk was developed to measure 3 components of SPPB of standing balance, gait speed, and chair stand test with embedded sensors and algorithms. Feasibility and reliability of the e-SPPB kiosk was assessed with the manually measured SPPB (m-SPPB) by a physical therapist in participants aged 65 or older recruited from the outpatient rehabilitation clinic of the Seoul National University Bundang Hospital, Seongnam, Korea, from November 2018 to April 2019. Results In 34 participants with mean age of 73.6 (standard deviation [SD] 5.4), mean of e-SPPB total score was 10.1 (SD 2.2) and mean of m-SPPB total score was 10.2 (SD 2.3). Concordance between e-SPPB and m-SPPB total score was 0.94 (P&lt;0.001) and agreement by Kappa was 0.65 (P&lt;0.001). Agreements for components of e-SPPB and m-SPPB were 0.68 (P&lt;0.001), 0.73 (P&lt;0.001), 0.92 (P&lt;0.001) for standing balance, gait speed and chair stand test, respectively. Conclusion In older adults, physical performance measured by the e-SPPB kiosk correlated to m-SPPB measured by a single physical therapist. In multicenter studies for older people with physical performance as an outcome or selection criterion, e-SPPB kiosk can be used to reduce possible inter-rater variabilities of SPPB.

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