scholarly journals Postural Strategy in Elderly, Middle-Aged, and Young People during Local Vibratory Stimulation for Proprioceptive Inputs

Geriatrics ◽  
2018 ◽  
Vol 3 (4) ◽  
pp. 93 ◽  
Author(s):  
Tadashi Ito ◽  
Yoshihito Sakai ◽  
Kazunori Yamazaki ◽  
Reiya Nishio ◽  
Yohei Ito ◽  
...  

Proprioceptive input may greatly affect postural stability. However, the proprioceptive postural strategy in elderly, middle-aged, and young people has not been investigated sufficiently. Hence, in this study, we aimed to investigate differences in proprioceptive postural strategies of elderly, middle-aged, and young people. The center of pressure displacement was determined in 23 elderly, 23 middle-aged, and 23 young people during upright stance on a balance board with their eyes closed. Vibratory stimulations at 30, 60, and 240 Hz were applied to the lumbar multifidus (LM) and gastrocnemius (GS) muscles to evaluate the contributions of different proprioceptive signals used in balance control. Compared with middle-aged and young people, elderly people showed a high dependence on postural control of the GS at 30 Hz (p-values: Young and elderly: 0.033; middle-aged and elderly: 0.001). Moreover, compared with young people, elderly people were more dependent on postural control of the LM at 240 Hz (p = 0.016). There were no significant differences with respect to the GS at 60 and 240 Hz, and with respect to the LM at 30 and 60 Hz between the elderly, young, and middle-aged people. Thus, the postural control strategy of elderly people depends on the GS at 30 Hz.

2020 ◽  
Vol 25 (2) ◽  
pp. 97-100
Author(s):  
A. K. Iordanishvili ◽  
V. A. Guk ◽  
A. A. Golovko

Relevance. The success of treatment of periodontal diseases directly depends on the patient’s response to the therapy, therefore, the characteristics of the person’s personal characteristics can affect both the effectiveness of treatment and the prevention of relapse of the disease.Purpose. To study the features of the internal picture of the disease in the process of complex treatment of adult patients suffering from chronic generalized periodontitis.Materials and methods. The generally accepted comprehensive treatment of chronic generalized periodontitis in 69 middle-aged and elderly men was carried out taking into account the personal response of patients Solovyov «Psychosensory-anatomical-functional maladaptation syndrome».Results. When patients were discharged from the hospital, there was a difference in the phenomena of maladaptation among the elderly and middle-aged: in middle-aged people, sufficient adaptation to the conditions of existence was determined; in elderly people, due to the existing comorbid pathology, a state of maladaptation was diagnosed, which was caused by the presence of complaints of defects in the dentition.Conclusion. In elderly people, as soon as possible after completion of treatment in a hospital, dental rehabilitation cannot be considered completed, which requires the adoption of organizational measures for their timely provision of dentures.


Designs ◽  
2019 ◽  
Vol 3 (3) ◽  
pp. 35
Author(s):  
Yeh Po-Chan

Body function begins to decline in middle age, with changes becoming increasingly noticeable over time. With the popularization of educational and information technology, people know more about healthcare and are becoming accustomed to self-testing using health equipment. Technological changes are reflected in products, which present innovations including the switch from traditional to touch-controlled interface designs. This can cause difficulties in the interpretation and interface operation for older adults, who may be facing physiological and psychological alterations. Understanding users’ physiological limitations has become an important aspect of product design. This study explored the effects of physiological limitations on touch-screen operation in middle-aged and elderly people, specifically regarding button type, display position, and button size. A total of 64 participants were included in the study: 32 middle-aged people (aged 45–64 years) and 32 elderly people (65 years of age and older). Each participant was asked to complete 32 tasks (two button categories × four button sizes × four presentation positions). The results revealed no differences between the elderly and the middle-aged groups with regard to the interpretation of image buttons and text buttons; however, button size affected the operation and interpretation time. Middle-aged participants demonstrated good interpretation performance when the buttons were displayed in the upper or lower part of the screen, whereas elderly participants only had a good interpretation performance when the buttons were in the upper part. For both groups, the ideal image button size was 16 mm with a text font size of 22.


Author(s):  
Giselle Delgado ◽  
Chelsea Coghlin ◽  
Katelyn Earle ◽  
Andrea Holek ◽  
Kate O'Hare

Background. Falls can be extremely detrimental to someone’s daily living, as well as life threatening This is especially true for individuals who have back problems, are sedentary, and have other health disorders. The purpose of this study was to investigate the effect of trunk extensor muscles fatigue on static postural control in young healthy adults compared to middle aged subjects. Methods. University students (n=10), and Middle-aged subjects (n=6; 40+ years of age) stood as immobile as possible on a force plate, with their feet together and eyes closed under two conditions; Fatigue and No fatigue. Fatigue was achieved through repetitive extensions of the trunk until a subjective fatigue level was reached. We measured center of pressure (CoP) displacements in the A/P and M/L planes using a force plate to assess standing balance. Findings. We did not observe any significant interaction between age and fatigue indicating that fatigue affected both age groups similarly. The CoP variability was higher for the middle aged compared to the young adults in both the fatigue and no-fatigue conditions. Interpretation. The results of this study indicate that trunk extensor fatigue does not affect balance differently for young compared to middle-aged subjects. This study also suggests that postural control decreases significantly with increasing age. Our finding that trunk extensor fatigue did not significantly affect the postural control of upright stance contradicts previous studies; this difference may be due to the subject sample in our study.


2020 ◽  
Author(s):  
ZHONGNENG XU

In USA, middle-aged people might be evaluated as having a low risk of Covid-19 death, but if the natural mortality is considered, the age distribution of death risk from Covid-19 changes. The proportions of Covid-19 deaths in total deaths among middle-aged and elderly people are in the same cluster. This shows that the increase rates in deaths caused by Covid-19 to middle-aged people is similar to that of the elderly, and it is necessary to pay the same attention to the risk of Covid-19 death in middle-aged people.


1983 ◽  
Vol 6 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Mary A. Luszcz

Attitudes toward the elderly were considered in a life-span context relative to adolescents and the middle-aged. These groups were chosen based on theorized commonalities linking adolescents and the elderly in contrast to the middle-aged. Undergraduate students used a semantic differential to rate the extent to which adjectives corresponded to their conceptions of ideal, real, and typical adolescents, middle-aged, and elderly people. Four subscales of Autonomy, Instrumentality, Acceptability, and Integration were assessed. When students considered their ideal conceptions of each age group, no age-related differences were evidenced on any dimensions. Further, across age, typical individuals were considered to be less acceptable and less well-integrated than people known by students. However, autonomy and instrumentality varied with age as well as the type of individuals being rated. Typical old people as well as old people known to students were viewed to be less instrumental than adolescents. These elderly people were also viewed as less instrumental than real but not typical middle-aged people. Adolescents and the elderly alike were seen as less autonomous than real or typical middle-aged people. Results were discussed in terms of Chellam's notion of symmetry that suggests that balance, likeness, and oppositeness each characterize relations among adolescents, the middle-aged, and the elderly.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kimiya Fujio ◽  
Yahiko Takeuchi

AbstractPosturography is utilized to assess the influence of aging on postural control. Although this measurement is advantageous for finding group-level differences between the young and the elderly, it is unclear whether it has the potential to differentiate elderly individuals who are affected by various impacts of aging. The purpose of this study was to determine the utility of posturography to discriminate elderly individuals from young adults. We investigated the performances of the random forest classifiers constructed from center of pressure (COP) indices for discriminating standing postures between healthy elderly and young people. Postural sways in 19 young and 31 community-dwelling elderly participants were measured using force plates in 4 standing conditions: bipedal standing, standing on a narrow base, standing on foam rubber, and standing with eyes closed. We further verified the informative predictors that contributed to the prediction model. As the results, the classifier based on the COP indices for standing on foam rubber showed the best performance (accuracy: 93.4%, sensitivity: 94.4%, specificity: 93.6%, area under the curve of receiving operator characteristics: 0.95), followed by the classifier for standing with eyes closed. The informative predictors varied depending on the postural conditions. Our findings demonstrated the potential of posturography for identifying elderly postures. The evaluation of sensory re-weighting using the appropriate COP indices would be a useful clinical tool for detecting the progress of aging on postural control.


1999 ◽  
Vol 9 (4) ◽  
pp. 277-286 ◽  
Author(s):  
Mark G. Carpenter ◽  
James S. Frank ◽  
Cathy P. Silcher

One possible factor influencing the control of upright stance is the perceived threat to one's personal safety, i.e. balance confidence. We explored this factor by examining the control of stationary stance when standing on an elevated platform under various conditions of reduced visual and vestibular inputs. Twenty-eight adults (14 male and 14 female, mean age = 23.5 years) participated in the experiment. Postural control was examined by recording the amplitude variability (RMS) and mean power frequency (MPF) of center of pressure excursions (COP) over a 2-minute interval while participants stood in a normal stance on a low (0.19 m) and a high (0.81 m) platform with toes positioned either at or away from the edge of the platform. Vision was manipulated through eyes open and eyes closed trials. Vestibular input was reduced by tilting the head into extension [1]. Anterior-posterior RMS and MPF of COP were significantly influenced by an interaction between surface height and vision. When vision was available, a significant decrease in RMS was observed during quiet standing on a high surface compared to a low surface independent of step restriction. When vision was available MPF increased when subjects were raised from a low to a high surface. The mean position of the COP was significantly influenced by an interaction between height and step restriction. Differences in RMS and MPF responses to height manipulation were observed between genders in eyes closed conditions. Vestibular input influenced postural control at both low and high levels with significant increases in RMS when vestibular input was reduced. The reciprocal changes observed in RMS and MPF suggest modifications to postural control through changes in ankle stiffness. Vision appears to play a role in increasing ankle stiffness when balance confidence is compromised.


2021 ◽  
Vol 19 (1) ◽  
pp. 083-114
Author(s):  
楊國柱 楊國柱 ◽  
吳金奇 Yang, Kuo-Chu

<p>嘉義縣民雄鄉山中村1(舊稱牛斗山或牛稠山),因牛稠溪域流經村莊而得此名,早期是全鄉人口最大村。山中村宗教信仰普遍為民間信仰,村莊主廟為廣濟宮,以奉祀池府王爺、媽祖、鄭成功為主,但村莊發展及信仰主體係圍繞池府王爺。本文採用文獻分析、田野調查及立意取樣後進行深度訪談,以探討山中村祭祀圈之形成,以及村民如何理解不同神靈之內涵,進而有助於山中村之社區發展與文化資源保存。</p> <p>藉由祭祀圈概念切入,以理解山中村社區各神靈祭祀圈的範圍與分布,進而探討地方社區信仰中心發展,與山中村民對不同神靈認知及意義之解讀。經研究發現:(一)隨著人口增加及集居地擴大,主廟的祭祀圈變大;由於廟務活動增加,牛斗山土地公廟的祭祀圈擴大;五營中的東、西兩營,未隨著社區的新增而往外遷移,因此祭祀圈無明顯變化。(二)山中村神靈祭祀圈的分布,「五營」與居民輪祀居住的地理範圍有關,原具有分群概念的輪祀傳統逐漸模糊:老者對此模糊;中年人認知些許;青年則不明白為何奉祀,宗教信仰傳承出現斷層的可能。(三)山中村民對不同祭祀圈神靈解讀有所異同,普遍難闡述神靈的由來及背景,較理解者屬老年人;其次為中年人;青年人則對神靈認知不清楚。(四)不同祭祀圈神靈意義與山中村民早期生活環境較有其關聯性,老年人多數提及身體健康及平安;中年人求財運、事業;青年人求課業順利。據此,就結論提出建議以供參考。</p> <p>&nbsp;</p><p>Shanzhong Village (formerly known as Niudou Mountain or Niuhou Mountain) in Minxiong Township, Chiayi County, got its name because the Niuhou Stream passed through the village. In the early days, it was the village with the largest population in the township. For the Guangji Palace, it is mainly dedicated to the worship of Lord Chifu, Mazu and Zheng Chenggong (Cheng Ch&rsquo;eng-Kung), but the village development and belief system surrounds Lord Chifu. This paper uses literature analysis, field investigations, and intentional sampling to conduct in-depth interviews to discuss the formation of the mountain village sacrificial circle and how the villagers understand the connotation of different gods, which can help the community development and cultural resource preservation of the mountain village. </p> <p> Through research, the concept of the religious field was cut in to understand the scope and distribution of the religious fields of the various deities in the Shanzhong Village community, and to discuss the development of local community faith centers and the understanding and meaning interpretation of the different deities of the Shanzhong villagers. The research found: (1) The religious realms become bigger because the population of village was increased;on the other side, Shanshang Viallage&rsquo;s religious realms become wilder due to the increase of temple actives. However, for the &quot;five camps&quot;, the east and west side of the deities&rsquo;s emissary did not extend so the Religious Realms can not protect the new village, (2) The distribution of the spiritual field in the Shanzhong village, the &quot;&quot;five camps&quot;&quot; are more closely related to the geographical scope of the residents&rsquo; rotation worship. The tradition of rotation worship with the concept of grouping is gradually blurring, and the old people are blurring; Understand why there is a possibility that there is a fault in the inheritance of religious beliefs; (3) Villagers in the mountains have different interpretations of deities in different religious fields, and it is generally difficult to understand the origin and background of deities, older than those who understand; older than middle-aged; more young Unrecognizable to the gods; (4) The significance of the gods in different religious fields is more related to the early life environment of the villagers in the mountains. The elderly have significant health and safety; the middle-aged people seek wealth and career; the young people seek smooth schooling .Then refer to the above research results to make research suggestions.</p> <p>&nbsp;</p>


2021 ◽  
Vol 4 (1) ◽  
pp. 013-022
Author(s):  
Blanchet Mariève ◽  
Prince François ◽  
Lemay Martin ◽  
Chouinard Sylvain ◽  
Messier Julie

We explored if adolescents with Gilles de la Tourette syndrome (GTS) had functional postural control impairments and how these deficits are linked to a disturbance in the processing and integration of sensory information. We evaluated the displacements of the center of pressure (COP) during maximal leaning in four directions (forward, backward, rightward, leftward) and under three sensory conditions (eyes open, eyes closed, eyes closed standing on foam). GTS adolescents showed deficits in postural stability and in lateral postural adjustments but they had similar maximal COP excursion than the control group. The postural performance of the GTS group was poorer in the eyes open condition (time to phase 1 onset, max-mean COP). Moreover, they displayed a poorer ability to maintain the maximum leaning position under the eyes open condition during mediolateral leaning tasks. By contrast, during forward leaning, they showed larger min-max ranges than control subjects while standing on the foam with the eyes closed. Together, these findings support the idea that GTS produces subclinical postural control deficits. Importantly, our results suggest that postural control disorders in GTS are highly sensitive to voluntary postural leaning tasks which have high demand for multimodal sensory integration.


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