scholarly journals Relationship between muscle mass and neuromuscular function in the muscular strength of elderly women practicing and non-practicing physical activities

2021 ◽  
Vol 10 (17) ◽  
pp. e139101724018
Author(s):  
Nathalie de Almeida Silva ◽  
Cledinaldo Lira Júnior ◽  
Maria Goretti da Cunha Lisboa ◽  
Jozilma de Medeiros Gonzaga ◽  
Danilo de Almeida Vasconcelos ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Muscle Mass ◽  
Upper Limb ◽  
Lower Limb ◽  
Muscular Strength ◽  
Neuromuscular Function ◽  
Physical Activities ◽  
Chair Stand ◽  
Stand Test ◽  
Neuromuscular Activity

Objective. To verify the correlation between muscle mass and neuromuscular function in muscle strength of women practicing and not practicing physical activities. Methods. This is a cross-sectional study conducted with older women (60 and over), physically active (fa) and physically inactive (fi). The muscle strength of the upper limb (handgrip strength - hgs; resisfor test) and lower limb (30 second chair stand test) were evaluated; as well as muscle mass (calf circumference - cc); and neuromuscular activity (semg) of the following muscles: flexor carpi radialis (fcr) and biceps brachii (bb) (upper limb); vastus lateralis (vl), vastus medialis (vm) and tibialis anterior (ta) (lower limb). The student t test and multiple linear regression were used (95%; p <.05). Results. Overall, 59 women were evaluated (71.5 ± 7.1 years), 31 fa and 28 fi. Fa women had significantly better values ​​in dynamic muscular strength tests of the upper (p=.001) and lower limbs (p<.0001). There was no significant difference in muscle mass between groups. After adjustment for covariates, there was relationship between cc and activity of fcr muscle with hgs (r2adj.= 0.64), and cc with the 30 second chair stand test (r2adj.= .39) in fa women. Among fi women, there was significant correlation between activity of fcr muscle and hgs (r2adj.= .35) and cc and neural activity of fcr with resisfor (r2adj.= .66). Conclusion. Physical exercise was related to higher dynamic muscle strength. Differences in the relationship between muscle mass and neuromuscular activity with strength in each test indicate physiological differences for each strength exercise applied.

scholarly journals Diagnosis of sarcopenia in primary health care

2020 ◽  
Vol 63 (10) ◽  
pp. 633-641
Author(s):  
Chang Won Won
Keyword(s):  
Primary Care ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Handgrip Strength ◽  
Muscle Performance ◽  
Chair Stand ◽  
Stand Test ◽  
Chair Stand Test ◽  
Primary Care Settings ◽  
Increased Risk

With aging, there is a loss of skeletal muscle mass and function, which leads to an increased risk of falls, fractures, long-term institutional care, cardiovascular and metabolic diseases, and even mortality. Sarcopenia has been defined as a condition characterized by low muscle mass together with low muscle strength and/or low muscle performance. In 2019, the Asian Working Group for Sarcopenia (AWGS) published a consensus paper on the diagnosis and treatment of sarcopenia. The AWGS 2019 guideline, in particular, presented strategies for case-finding and assessment, which could aid in the diagnosis of possible sarcopenia in primary care settings. AWGS 2019 proposed an algorithm that recommends calf circumference measurement (cut-off <34 cm in men, <33 cm in women) or the SARC-F (strength, assistance in walking, rising from a chair, climbing stairs, falls) questionnaire (cut-off ≥4), followed by handgrip strength measurement (cut-off <28 kg in men, <18 kg in women) or the 5-time chair stand test (≥12 seconds). Finally, “possible sarcopenia” is defined by either low muscle strength (handgrip strength) or low physical performance (5-time chair stand test). This paper will address the way in which sarcopenic patients can be identified and assessed practically in primary care settings.

scholarly journals Augmentation Index Is Inversely Associated with Skeletal Muscle Mass, Muscle Strength, and Anaerobic Power in Young Male Adults: A Preliminary Study

2021 ◽  
Vol 11 (7) ◽  
pp. 3146
Author(s):  
Dongmin Lee ◽  
Kyengho Byun ◽  
Moon-Hyon Hwang ◽  
Sewon Lee
Keyword(s):  
Skeletal Muscle ◽  
Muscle Strength ◽  
Arterial Stiffness ◽  
Muscle Mass ◽  
Muscular Strength ◽  
Skeletal Muscle Mass ◽  
Augmentation Index ◽  
Anaerobic Power ◽  
Negatively Associated ◽  
Increased Risk

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.

scholarly journals Relationships between Upper Limb, Lower Limb and Trunk Muscle Mass and Insulin Resistance in Male Patients with Type 2 Diabetes

2020 ◽  
Vol 35 (5) ◽  
pp. 735-739
Author(s):  
Yoshikazu HIRASAWA ◽  
Ryosuke MATSUKI ◽  
Hideaki TANINA ◽  
Toshihiko EBISU ◽  
Yoshiyuki HAMAMOTO
Keyword(s):  
Insulin Resistance ◽  
Type 2 Diabetes ◽  
Muscle Mass ◽  
Upper Limb ◽  
Lower Limb ◽  
Trunk Muscle ◽  
Male Patients

Lower limb muscle mass is associated with insulin resistance more than lower limb muscle strength in non‐diabetic older adults

2019 ◽  
Vol 19 (12) ◽  
pp. 1254-1259
Author(s):  
Toshiaki Seko ◽  
Hiroshi Akasaka ◽  
Masayuki Koyama ◽  
Nobuaki Himuro ◽  
Shigeyuki Saitoh ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Older Adults ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle

scholarly journals Clinimetric properties of the one‐leg sit‐to‐stand test in examining unilateral lower limb muscle strength among young adults

2020 ◽  
Vol 74 (9) ◽  
Author(s):  
Surachart Thongchoomsin ◽  
Sunee Bovonsunthonchai ◽  
Leonard Joseph ◽  
Samatchai Chamnongkich
Keyword(s):  
Young Adults ◽  
Muscle Strength ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Stand Test ◽  
Sit To Stand ◽  
The One

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.

scholarly journals Effects of an Eight-Week Stepladder Exercise Protocol on Lower Limb Muscular Strength of Apparently Healthy Young Adults

2017 ◽  
Vol 18 (3) ◽  
Author(s):  
Oladapo Michael Olagbegi ◽  
Babatunde Olusola Adegoke ◽  
Candice Jo-Anne Christie ◽  
Olufemi Samuel Bolarinde ◽  
Joseph Adeiza Jegede
Keyword(s):  
Young Adults ◽  
Muscle Strength ◽  
Lower Limb ◽  
Muscular Strength ◽  
Lower Limbs ◽  
Stair Climbing ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Joint Stress ◽  
Apparently Healthy

AbstractPurpose. Backward descent of stairs is associated with improved muscle strength and reduced joint stress, but the effect of backward ascent of stairs on lower limb muscle strength has not been reported. This study compared the effects of forward and backward stair climbing on lower limb muscle strength in apparently healthy young adults. Methods. The total of 31 young volunteers were allocated to either forward or backward stair climbing group (n = 16 and 15, respectively). Dynamic quadriceps and hamstring muscle strength was assessed in addition to thigh girth at baseline and at weeks 4 and 8 with the use of the repetitive maximum method and tape measure, respectively. Results. Between baseline and week 8, muscular strength in both groups (quadriceps: 14.4 ± 3.6 to 16.4 ± 3.4 kg; 14.0 ± 2.9 to 15.3 ± 2.7 kg; hamstring: 12.2 ± 3.2 to 13.4 ± 3.2; 11.7 ± 2.5 to 12.9 ± 2.7 kg) increased significantly (p < 0.05) while the increase in thigh girth was not significant (p > 0.05). The groups were comparable in all three measures post intervention. Conclusions. Forward and backward stair climbing protocols are effective for improving the dynamic strength of the hamstring and quadriceps muscles of apparently healthy young adults. Thus, either protocol could be used for the improvement of lower limbs dynamic muscle strength.

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