Biomechanical Comparison of Countermovement Jumps Performed on Land and in Water: Age Effects

2018 ◽  
Vol 27 (3) ◽  
pp. 249-256 ◽  
Author(s):  
Talin Louder ◽  
Dennis Dolny ◽  
Eadric Bressel

Context:The aquatic environment provides a low-impact alternative to land-based exercise and rehabilitation in older adults.Objective:Evaluate the biomechanics of older adults and young adults performing jumping movements on land and in water.Design and Setting:Cross-sectional, mixed-factorial experiment; adjustable-depth pool at sports medicine research facility.Participants:Fifty-six young adults (age = 22.0 [3.9] y) and 12 healthy older adults (age = 57.3 [4.4] y).Interventions:Each participant performed 6 maximal effort countermovement jumps: 3 jumps were performed on land, and 3 other jumps were performed with participants immersed in chest-deep water.Main Outcome Measures:Using data from the amortization and propulsive phases of jumping, the authors computed the following kinetic and kinematic measures: peak and mean mechanical power, peak force, amortization time and rate, unweighting and propulsive times, and lower-extremity segment kinematics.Results:Mechanical power outputs were greater in younger adults (peak: 7322 [4035] W) versus older adults (peak: 5661.65 [2639.86] W) and for jumps performed in water (peak: 9387 [3981] W) versus on land (peak: 4545.84 [1356.53] W). Peak dorsiflexion velocities were greater for jumps performed in water (66 [34] deg/s) versus on land (4 [7] deg/s). The amortization rate was 26% greater in water versus on land. The amortization time was 20% longer in older adults versus young adults.Conclusions:Countermovement jumps performed in water are mechanically specific from those performed on land. Older adults jumped with longer unweighting times and increased mechanical power in water. These results suggest that aquatic-based exercise and rehabilitation programs that feature jumping movements may benefit older adults.

2020 ◽  
Vol 232 (06) ◽  
pp. 294-299
Author(s):  
Maria Otth ◽  
Sibylle Denzler ◽  
Sibylle Schmid ◽  
Birgitta Setz ◽  
Katrin Scheinemann

Abstract Background Inpatient rehabilitation improves physical and psychosocial performance in childhood cancer patients and their families. Two kinds of inpatient rehabilitation are available in specialized institutions in Germany: family-oriented rehabilitation or peer group-oriented rehabilitation for adolescents and young adults (AYA). Our study aimed to find out what Swiss childhood and AYA cancer patients and their families thought about the rehabilitation programs in which they had participated. Patients and methods We conducted a questionnaire-based, cross-sectional study of Swiss childhood and AYA cancer patients and their families whose inpatient rehabilitation stays were scheduled to take place in Germany between May 2012 and March 2019. We analyzed the data descriptively and present our findings in accordance with the STROBE statement. Results Of the 57 eligible families contacted, 38 (67%) responded. Most rated the rehabilitation stay as very good (68%) or good (26%). Nearly all participants emphasized that these programs should be available to all affected patients and their families. Most (80%) thought the program gave them enough valuable information to enable them to cope with daily life after the stay ended. Only one fifth (19%) of the rehabilitation stays were fully funded by the health or disability insurance. Conclusion Participants expressed an overwhelmingly positive opinion about the rehabilitation programs they attended. We are convinced that childhood and AYA cancer patients and their families in Switzerland benefit from these programs and encourage insurances to cover the costs.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 318-318
Author(s):  
Jonathan Suen ◽  
Aishwarya Shukla ◽  
Adele Goman ◽  
Carrie Price ◽  
Frank Lin ◽  
...  

Abstract Hearing loss is highly prevalent among older adults, as is occurrences of loneliness and social isolation. Both loneliness and social isolation are also associated with insidious outcomes such as earlier mortality from all-causes and higher prevalence of chronic comorbidities. The purpose of this review is to synthesize published investigations that report on the associations between hearing loss with loneliness and social isolation. A systematic search through PubMed, Embase, CINAHL Plus, PsycINFO, and the Cochrane Library identified an initial total of 2495 references. Two independent reviewers screened articles for inclusion, with a third reviewer adjudicating. Studies published in English of older adults with hearing loss that also assessed loneliness and/or social isolation using a validated measure were included. Investigators used a modified Newcastle-Ottawa Scale (NOS) to appraise study quality. A final total of 14 articles were included in the review. The majority (12/14) were cross-sectional in design. Assessment methods were varied across hearing status, loneliness, and social isolation. Despite this heterogeneity, most multivariable adjusted investigations revealed that hearing loss was significantly associated with higher risks for both phenomena. Several studies also revealed this association to vary across gender, with women showing a stronger association than men. Our findings indicate that hearing loss is associated with both loneliness and social isolation, which have important implications for the cognitive and psychosocial health of older adults. Future investigations should examine possible underlying mechanisms of these relationships, as well as the efficacy of interventions through aural rehabilitation programs in addressing loneliness and social isolation.


Children ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 245
Author(s):  
Alejandro Martínez-Rodríguez ◽  
Manuel Vicente-Martínez ◽  
Javier Sánchez-Sánchez ◽  
Laura Miralles-Amorós ◽  
María Martínez-Olcina ◽  
...  

(1) Background: The preoccupation with the increasing appearance of eating disorders (ED) in athletes continues to grow, especially in athletes who practice team sports. ED severely affects the eating habits of the athletes, who tend to use unhealthy approaches to control their body weight. The development of nutritional education and early interventions by training staff is essential, and these factors are widely perceived as beneficial in sports medicine. This study evaluates the frequency at which beach handball (BH) players develop ED, also comparing the differences by sex and age (junior: adolescents vs. senior: young adults). In addition, the relation between body composition variables and ED was studied. (2) Methods: A descriptive and cross-sectional study was carried out in 69 top elite handball players (36 males and 33 females) from the Spanish National BH Team; who were separated by age (junior: adolescents and senior: young adults). The athletes completed the Eating Attitudes Test in its 26 item version (EAT-26). (3) Results: The prevalence of ED indicated that 11% of females had a high possibility of developing an ED, and 3% of males. Regarding the EAT-26 total score and subscales, no significant differences were found between female and male participants, or between the junior and senior categories. The correlations showed an association between body composition, in terms of body mass index, and the EAT-26 total score in both males and females. In the case of males, the correlation was negative. (4) Conclusions: Although there are no significant differences between sex or categories, it has been found that elite athletes are a population that is at high risk of developing ED.


Author(s):  
Ernest K. Ofori ◽  
Savitha Subramaniam ◽  
Shuaijie Wang ◽  
Tanvi Bhatt

Background: Recent studies demonstrate improvements in both postural stability and mobility among aging populations and those with stroke who are exposed to dance-based exergaming (DBExG). However, age-related deficits and aging with cortical pathology may lead to distinct movement adaptation patterns during DBExG, which could impact therapeutic outcomes.Aim: The aim of this study was to examine the movement kinematics (postural stability and mobility) of healthy older adults, older adults with stroke, and young adults for different paces of dance during DBExG. Method: The study included 33 particpants (11 participant from each group of healthy older adults, older adults with chronic stroke, and healthy young adults) who performed the DBExG using slow- (SP), medium- (MP), and fast-paced (FP) songs with movements in the anteroposterior (AP) and mediolateral (ML) directions. Center of mass (CoM) sway area, excursion (Ex), and peaks as well as hip, knee, and ankle joint excursions were computed. Results: Results of the study revealed that CoM sway areas and Exs were greater for healthy young adults than for older adults with stroke for the SP dance (p < 0.05) and that there were significantly more AP CoM peaks for young adults than for healthy older adults and those with stroke for the FP dance (p < 0.05). Young adults also exhibited greater hip and ankle Exs than older adults with stroke (p < 0.05) for all song paces. Similarly, knee and ankle Exs were greater for healthy older adults than for older adults with stroke for all song paces (p < 0.05). Conclusion: The quantitative evaluation and comparison of the movement patterns presented for the three groups could provide a foundation for both assessing and designing therapeutic DBExG protocols for these populations.


2020 ◽  
pp. 1-7
Author(s):  
Alyssa Dittmer ◽  
David Tomchuk ◽  
David R. Fontenot

Context: Rounded shoulder posture is a common problem in the athletic population. Recently Kinesio tape has been utilized to improve balance, proprioception, and posture. However, the literature has been unable to provide definitive answers on the efficacy of Kinesio tape use. Objective: To determine the immediate effect of the limb rotational Kinesio tape application on the dynamic balance and proprioception of the shoulder measured by the Y-Balance Upper Quarter Test (YBT-UQ) in male collegiate athletes. Design: Cross-sectional. Setting: Sports medicine research laboratory.Participants: Nineteen healthy male collegiate National Association of Intercollegiate Athletics athletes (including rodeo, baseball, football, and soccer) with a mean age of 19.8 (1.4) years. Interventions: Subjects were randomized into Kinesio tape and non-Kinesio tape groups. The limb rotational Kinesio tape application was applied to the Kinesio tape group, while the non-Kinesio tape group received no intervention. Each group performed the YBT-UQ, which requires reaching in 3 directions in a push-up position, before and after the randomized intervention on a single day. Main Outcome Measures: The variables of interest included the maximum reach distance in each of the 3 directions and the composite score for both trials between the Kinesio tape and non-Kinesio tape groups. Each score was normalized against the subject’s limb length. Results: No statistically significant improvements in any YBT-UQ scores were observed following either the Kinesio tape or non-Kinesio tape intervention. Conclusions: Applying the limb rotational Kinesio tape technique did not improve immediate YBT-UQ scores in a male collegiate athletic population with rounded shoulder posture. The use of Kinesio tape to improve immediate closed kinetic chain function in male collegiate athletes with rounded shoulder posture cannot be supported.


2019 ◽  
Vol 76 (1) ◽  
pp. 195-200 ◽  
Author(s):  
Aishwarya Shukla ◽  
Thomas K M Cudjoe ◽  
Frank R Lin ◽  
Nicholas S Reed

Abstract Objectives Hearing loss is common in older adults and limits communication. We investigated the independent association between functional hearing loss and social engagement in a nationally representative sample of older adults. Methods Using data from the 2015 Medicare Current Beneficiaries Survey, we modeled the cross-sectional association between self-reported hearing ability and limitation in social activity over the past month using multivariable logistic regression. Results The majority of the study population was female (54.8%) and non-Hispanic white (74.3%). Participants (40.4%) reported “a little trouble” hearing and 7.4% reported “a lot of trouble” hearing. Those who reported any trouble hearing had higher odds of limited social engagement in the past month. After adjustment for demographic, clinical, and functional covariates, those who reported “a lot of trouble” hearing had 37% higher odds of limited social activity in the past month compared to those with normal hearing. Discussion These results suggest that hearing loss may be an important risk factor for limited social engagement and downstream negative health consequences, independent of other disability and health conditions.


2020 ◽  
Author(s):  
Asif Imtiaz ◽  
Emran Hasan ◽  
Akram Hossain ◽  
Noor Muhammad Khan

Young adults’ attitudes toward COVID-19 are vital for their adherence to control measures taken by the government to break the chain of contamination. This study aims to measure differences in attitudes to this pandemic across various demographic groups of young adults living inside and outside of Dhaka. The predictors of optimistic attitudes toward COVID-19 also have been investigated. The study is cross-sectional in nature using data from the members of Secondary and Intermediate Level Students’ Welfare Association (SILSWA). Participants (n = 700) self-reported their attitudes toward controlling and defeating the pandemic. ANOVA and a two-sample t-test were utilized to find the differences in the mean attitude across demographic groups. Predictors of attitudes toward COVID-19 were searched using multivariate logistic regression. Psychologically distressed participants showed more negative attitudes toward winning over COVID-19 than participants with good mental health both inside and outside of Dhaka. Participants inhabiting in Dhaka demonstrated less optimism for controlling and beating the pandemic. Less psychological distress [AOR=0.51; 95 per cent CI: 0.35, 0.76; p=0.001] found to be the significant predictors of an optimistic attitude of young adults. Dissemination of précised and accurate information regarding COVID-19 coupled with mental health intervention based on necessity can improve the attitudes of young adults.


Author(s):  
A.A.O. Leopoldino ◽  
R.Z. Megale ◽  
J.B.M. Diz ◽  
B.S. Moreira ◽  
D.C. Felício ◽  
...  

ABSTRACT A cross-sectional analysis was conducted using data from a prospective cohort study to investigate whether frailty is associated with pain intensity, disability caused by low back pain (LBP), and quality of life in an older population with acute non-specific LBP. Six hundred and two individuals with a mean age of 67.6 (standard deviation [SD] 7.0) years were included in the analysis. In relation to frailty status, 21.3 per cent of the sample were classified as robust, 59.2 per cent were classified as pre-frail, and 19.5 per cent were classified as frail. In the unadjusted analysis, pre-frail and frail groups showed significantly higher pain and disability scores than the robust group. Moreover, the same two groups exhibited lower scores in both physical and mental domains of quality of life than the robust group. After adjusting for socio-demographic and clinical variables, disability scores and the physical component of quality of life were significantly associated with frailty. In older adults with acute LBP, frailty is associated with more disability and worse scores in the physical component of quality of life.


2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Amira Abou-Dest ◽  
Cédric T. Albinet ◽  
Geoffroy Boucard ◽  
Michel Audiffren

This study examined whether regular swimming in older adults was related to better cognitive functioning and whether there were any global or selective positive effects of this physical activity (PA) on cognition. The cognitive performances of three groups of sixteen volunteer participants (young adults, sedentary older adults, and older adults who regularly practice swimming) were evaluated using a multitask approach. All participants performed a battery of ten tasks: two reaction time tasks assessing information processing speed and eight experimental tasks assessing three executive functions (EFs), (behavioral inhibition, working memory updating, and cognitive flexibility). The results showed that young adults performed significantly better than older adults on all examined cognitive functions. However, in older adults, regular swimming was related to better performance on the three EFs, but not on information processing speed. More precisely, five experimental tasks out of the eight tapping EFs were shown to be sensitive to positive effects from swimming practice. Finally, the demonstrated benefits of swimming on EFs were not necessarily linked to better cardiorespiratory fitness. The present findings illustrate the validity of using a multitask approach in examining the potential benefits of regular PA on cognitive aging.


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