Impact of Aging on Balance and Pattern of Muscle Activation in Elderly Women from Different Age Groups

The purpose of this paper is to describe the knowledge about mammography and to identify associated factors in female adults and elderly. Data were obtained from two population surveys, one with female adults and another with elderly women from Florianópolis (SC) in 2009 - 2010. A descriptive analysis of the variables was carried out, the appropriate mean of responses about mammography was estimated and crude and adjusted Poisson regression was conducted to identify associated factors. Among adults, 23.1% answered all of the questions appropriately and the appropriate average responses was 7.2 (95%CI 7.1 - 7.3) in a total of 9. In the adjusted model, older age, higher education and income were associated with knowledge about mammography. For the elderly, 15.3% answered all questions appropriately and the average of appropriate responses was 6.4 (95%CI 5.2 - 6.5) and the factors associated with knowledge about mammography in the adjusted model were younger age groups, increased education and income, and identification of mammography as the main diagnostic method for breast cancer. Information about mammography can neither be transmitted in a clear way nor be easily understood; there are also demographic and socioeconomic differences concerning the knowledge about the exam.

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Avaliação da regulação sensorial do equilíbrio corporal e risco de queda de mulheres adultas e idosas fisicamente ativas

PAJAR - Pan-American Journal of Aging Research ◽

10.15448/2357-9641.2019.2.32683 ◽

2019 ◽

Vol 7 (2) ◽

pp. 32683

Author(s):

Marcelo De Maio Nascimento ◽

Hugo Daniel Gomez De Castro ◽

Mateus Alves Ramos

Keyword(s):

Elderly Women ◽

Dynamic Balance ◽

Age Groups ◽

Detailed Examination ◽

Adult Women ◽

Risk Of Falling ◽

Balance Test ◽

Cross Sectional ◽

Physically Active ◽

Sensory Regulation

OBJECTIVE: To examine the sensory performance of static and dynamic balance regulation and the risk of falling in physically active adult and elderly women.METHOD: This is a non-probabilistic and intentional cross-sectional study. Thirty four women (51.90±15.84 years) enrolled in a gym attended. The population evaluated was stratified in age groups: 20-59 years (n=18) and 60 69 years (n=16). The gait was evaluated by the Time Up and Go (TUGs), Time Up and Go manual (TUGm), and Time Up and Go cognitive (TUGc), the balance by the Dynamic Gait Index (DGI) and Body Balance Test (TEC). RESULTS: Student’s t-test showed significant differences between age groups for comorbidities: hearing, vision, vertigo, labyrinthitis (p≤0.05). Comparatively, adult women showed better performance indices than older women in physical tests. According to the standards of the tests, there was no risk of falling for any group. However, regardless of age, a detailed examination of the TEC test showed a deficit in the sensory regulation of the visual, vestibular and somatosensory systems of the static and dynamic balance of fallers and non fallers (p≤0.05). The logistic regression analysis indicated the interoceptive regulation of the dynamic balance as a predictor of fall (p≤0.05). CONCLUSION: Deficits in the vestibular and somatosensory systems gradually potentiate the risk of falls in adult and elderly women, even if they remain physically active.

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From maturity to old age: tasks of daily life require a different muscle use in horses

Comparative Exercise Physiology ◽

10.3920/cep140001 ◽

2014 ◽

Vol 10 (2) ◽

pp. 75-88 ◽

Cited By ~ 7

Author(s):

R.R. Zsoldos ◽

B. Krüger ◽

T.F. Licka

Keyword(s):

Life Expectancy ◽

Muscle Activity ◽

Dynamic Time Warping ◽

Muscle Activation ◽

Daily Life ◽

Age Groups ◽

Time Warping ◽

Neck Extension ◽

Neck Position ◽

Dynamic Time

In vertebrates ageing is characterised by reduced viscoelasticity of the ligamentous and tendineous structures and fibre changes in muscle. Also, some vertebral joint degeneration develops with ageing. The aim of this study was to apply dynamic time warping to compare the temporal characteristics of the surface electromyography (sEMG) data and to illustrate the differences in the pattern of muscle use during tasks of daily life in old and mature horses. In vivo kinematics (24 skin markers) and sEMG measurements of neck extensors and flexors were taken in five mature horses (aged 10±2 years, half of mean life expectancy) and five old horses (aged 25±5 years, older than the mean life expectancy). All horses had the same level of activity in the 12 months prior to the measurement. Tasks measured were neck flexion and neck extension as well as neutral neck position. Muscle activation, minimum and maximum muscle activation were collected. Quartiles of muscle activity based on the maximum observed activity of each muscle were calculated to document the relative increase of activity level during the task. Kinematics as well as overall muscle activity patterns were similar across horses and age groups. However, in the neutral position old horses showed increased extensor activity compared to mature horses, indicating that old equine muscle requires more activity to counteract gravity. Dynamic time warping specified optimal temporal alignments of time series, and different temporal performances were identified. The age groups differed during the flexion task, while neck extension and neutral neck position were more similar. The results of this study show that even in the second half of life and in the absence of muscle disuse the muscular strategy employed by horses continues to be adapted.

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Nordic Walking – A Versatile Physical Activity Fit for Everyone (A Literature Review)

LASE Journal of Sport Science ◽

10.1515/ljss-2016-0025 ◽

2014 ◽

Vol 5 (1) ◽

pp. 46-56 ◽

Cited By ~ 2

Author(s):

Krzysztof Piech ◽

Jakub Piech ◽

Juris Grants

Keyword(s):

Physical Activity ◽

Literature Review ◽

Elderly Women ◽

Age Groups ◽

The Elderly ◽

Competitive Sport ◽

Scientific Interest ◽

Nordic Walking ◽

Number Of Publications ◽

Pole Walking

Abstract The topic of Nordic walking shows the main points of scientific interest concerning form of physical exercise. Existing research mainly focuses on presenting it as beneficial for the elderly. The authors of the topic are presenting the advantages of pole walking for distinctive age groups. There are a number of publications concerning elderly women specifically. Nordic walking is also an object of interest in biomechanical studies. There is an apparent shortage of publications on the utility of this kind of physical activity for children and the young. This seems to be a frequent shortcoming of the research methodology, as it is difficult to deduce whether the study is based on the correct Nordic walking technique or rather on walking with poles as a bracing device. At the same time there is no data concerning Nordic walking as a competitive sport which has been developing dynamically.

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Demografische diversiteit in het Vlaamse perslandschap

Tijdschrift voor Communicatiewetenschappen ◽

10.5117/2015.043.002.169 ◽

2015 ◽

Vol 43 (2) ◽

Author(s):

Hanne Vandenberghe ◽

Leen d’Haenens ◽

Baldwin Van Gorp

Keyword(s):

Human Rights ◽

Ethnic Minority ◽

Ethnic Minorities ◽

Elderly Women ◽

Age Groups ◽

White Men ◽

The Elderly ◽

Demographic Diversity ◽

News Sources ◽

Or Economics

Demographic diversity in the Flemish press Demographic diversity in the Flemish press This study analyses the diversity of the Flemish news by looking at demographic diversity, i.e. the extent to which gender, age and ethnicity in society are proportionally represented in the news. In a constructed week (April-May 2012) (N = 4,800) 12,743 persons were mentioned, each of them were assigned to age groups, man or woman, ethnic minority or ethnic majority. The results indicate that youngsters, the elderly, women and ethnic minorities are underrepresented as news sources in the Flemish news. Especially in the case of elite sources, the news was strongly dominated by adult ‘white’ men. Women were systematically associated more often with ‘feminine’ topics such as welfare and culture, whereas news topics such as sports, politics or economics were strongly dominated by male actors. Ethnic minorities were predominantly (84,2%) connected to sport, crime and justice, and human rights including immigration.

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The relationship between the visceral adiposity index and carotid atherosclerosis in different genders and age groups

10.21203/rs.3.rs-457793/v1 ◽

2021 ◽

Author(s):

Jing Cao ◽

Shengpeng Liu ◽

Q. Yang ◽

Y. Zhang ◽

J. Huang ◽

...

Keyword(s):

Carotid Atherosclerosis ◽

Elderly Women ◽

Age Groups ◽

Visceral Adiposity ◽

Visceral Adiposity Index ◽

Health Examination ◽

Diagnostic Efficacy ◽

Cross Sectional ◽

Adiposity Index ◽

Increased Risk

Abstract Objective: We aimed to investigate the possible relationship between visceral adiposity index (VAI) and carotid atherosclerosis(CAS) in different genders and age groups in China. Methods: This study was an observational cross-sectional study and included 1996 participants who were health examination population .From January 2018 to June 2019, people over 18 years old who had physical examinations were included in the study. Each participant completed a standard questionnaire, anthropometric measurements, ultrasonic examination ,and provided blood samples for biochemical measurements. Regression models were utilized to evaluate the correlation between VAI and the CAS risk. An ROC curve was utilized to predict VAI diagnostic efficacy for carotid atherosclerosis. Result: After adjusting for potential risks, high-VAI subjects had an increased OR of having CAS in women aged>44 years[OR= 3.09,95% Confdence interval (95%CI)=1.64⑶5.82, p <0.001]. In females, the AUC and sensitivity specificity were [(0.595, 76.68% and 39.85%, all females), (0.575, 78.51% and 30.37%, age ≤44), (0.609, 84.71% and 40.46%, age >44). When compared with traditional obesity indices(BMI, WC, and HC) , the predictive ability of VAI was stronger in females >44.The same relationships in males were not signifcant. Conclusions: The VAI were associated with an increased risk of CAS,and it could be selected as new and simple predictors of CAS for middle-aged and elderly women(age >44)in China .

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Isokinetic performance of knee flexor and extensor muscles in community-dwelling elderly women

Fisioterapia em Movimento ◽

10.1590/0103-5150.028.003.ao14 ◽

2015 ◽

Vol 28 (3) ◽

pp. 555-562 ◽

Cited By ~ 2

Author(s):

Diogo C. Felício ◽

Daniele S. Pereira ◽

Bárbara Z. de Queiroz ◽

Alexandra M. Assumpção ◽

João M. D. Dias ◽

...

Keyword(s):

Muscle Function ◽

Elderly Women ◽

Descriptive Analysis ◽

Age Groups ◽

Peak Torque ◽

Community Dwelling ◽

Muscle Performance ◽

Total Work ◽

Isokinetic Dynamometer ◽

Extensor Muscles

AbstractIntroduction The isokinetic dynamometer enables accurate assessment of muscle function. In Brazil, few studies have assessed the isokinetic muscle performance in older adults making interpretation and comparison of results with other studies.Objectives To conduct a descriptive analysis of the performance of the muscle flexor and extensor muscles of the knee joint in elderly community and compare the performance between the age groups 65-74 years and 75 years or more.Methods This is a cross sectional observational study with a convenience sample of 229 elderly community. For the analysis of muscle performance was used isokinetic dynamometer (Biodex System 3 Pro™) in the angular velocities of 60 °/s and 180 °/s. The variables evaluated were peak torque, peak torque normalized by body weight, total work normalized by body mass, total work, average power and agonist/antagonist ratio. Descriptive analysis was used to characterize the sample. For comparison between age groups was used Student's t-test with α = 0.05.Results The elderly women with older age showed a statistically significant decrease in most of the variables (p < 0.05) except for the agonist and antagonist knee (p = 0.398).Conclusions The isokinetic was a sensitive tool to characterize the modifications caused by aging on muscle function. Elderly with results below the lower limits of the confidence intervals for all variables certainly has a decreased strength for the age group evaluated and must be addressed therapeutically. The results can be used as a benchmark in clinical practice and future research.

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The Effect of External Weight Distribution on Muscle Activation Pattern during Obstacle Negotiation for Male Participants

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1071181319631241 ◽

2019 ◽

Vol 63 (1) ◽

pp. 37-41

Author(s):

Guofu Yi ◽

Xinting Wang ◽

Junxia Zhang ◽

Shuai Hao ◽

Boyi Hu

Keyword(s):

Lower Extremity ◽

Load Distribution ◽

Muscle Activation ◽

Age Groups ◽

External Loading ◽

Activation Pattern ◽

Activation Patterns ◽

Muscle Activation Pattern ◽

Muscle Activation Patterns ◽

Lower Extremity Muscle

Effects of different age groups and different external loading distribution on lower extremity muscle activation during obstacle crossing tasks were tested in this study. Four young participants and five healthy senior participants performed different walking tasks at their own speed carrying multiple different weights while their lower extremity muscle activation patterns were recorded and compared. Older adults showed significantly increased muscle activation patterns in obstacle negotiation. Furthermore, participants showed altered lower extremity muscle activation patterns with different load distribution.

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