scholarly journals The Impact of Age, Gender and Technical Experience on Three Motor Coordination Skills in Children Practicing Taekwondo

Author(s):  
Stefanos Boutios ◽  
Giovanni Fiorilli ◽  
Andrea Buonsenso ◽  
Panagiotis Daniilidis ◽  
Marco Centorbi ◽  
...  

The study aim was to investigate the age, gender and technical level on motor coordination abilities of Taekwondo children. One hundred and fifteen children (83 male, 32 female), aged 7.76 ± 1.71 years, divided in three different groups, under 8 (5–7 years), under 10 (8–9 years) and under 12 (10–11 years), underwent three coordination skills tests: the ruler drop test (RDT), assessing visual reaction time, the hexagonal test (HT), assessing agility, and the target kick test (TKT), assessing kicking ability. MANOVA showed significant gender differences for TKT, in which females showed higher scores than males (p = 0.033). Significant differences were found in HT and TKT, where the under 12 group showed higher scores than younger athletes (p < 0.001). No differences amongst different age groups were found in RDT, showing that this could be a good predictor of Taekwondo performance, assessed at an early stage. High-level athletes showed better scores in all the tests than the low levels, as it was expected. Coordinative performance improves with age and is positively influenced by practicing a sports activity. The predisposition to a particular sport with a well-planned training may lead to a motor proficiency comparable to that reached by older athletes and better than same-age athletes.

2007 ◽  
Vol 35 (5) ◽  
pp. 615-626
Author(s):  
Khader Baroun

In this study the impact of gender, levels of anxiety, and depression on pursuit rotor performance task was investigated. The participants were 292 undergraduate students (171 men and 121 women) of Kuwait University, Kuwait. They completed an anxiety scale, depression scale, and 4 speed levels of pursuit rotor. They were divided into 3 groups (low, middle, and high anxiety and depression) based on their scores on the Kuwait University Anxiety Scale (KUAS; Abdel-Khalek, 2000) and the Beck Depression Inventory (BDI-II; Beck, Ward, Mendelson, Mock, & Erbaugh, 1961). The results revealed that groups of men with low levels of anxiety, and high level of depression showed significant increment in performance and had more time on target than the other groups in all 4 speed sessions, whereas women displayed less time on target of pursuit rotor.


2021 ◽  
Author(s):  
Mohammad Nematullah

Some of the most frequently used scheduling heuristics for resource constrained projects are Activity Time (ACTIM), Activity Resource (ACTRES) and Resource Over Time (ROT) which are based on Brook's Algorithm (BAG). These heuristics assign resources based upon the priority values of the activities that can be scheduled. In the first part of this study, these heuristics have been modified such that when more than two activities are allowed to be assigned, depending upon the priority rule, that activity is assigned first overriding the priority rule, which, if assigned, will result in minimum resource idle time (MRIT). MRIT is found to improve the performance of these existing heuristics. The second part of the study investigates the performance of these heuristics at high and low levels of resource requirement by each activity. ACTIM was found to perform better than other heuristics at the low level. At the high level, all the heuristics performed equally well.


Author(s):  
Selva Kumari T. R. Thanga ◽  
Mansi Modi

Ayurveda is one of the old traditional science which deals with healthy and diseased state of human beings through lifestyle, dietary supplements, medication, yoga, purification techniques. In decades of old age can be reduced by the rasayana therapy, which is the line of treatment for vriddha age groups with dominant of vata dosha, agni mandya, dhatu and upadhatu Kshaya. Women are mostly vulnerable at early stage by the vata dosha, dhatu Kshaya especially asthi dhatu, upadhatu like aartava etc. Kshaya of asthi dhatu in menopausal period can be considered as menopausal osteoporosis. Prevention is better than cure as per this proverb, this study was held to prevent the risk of postmenopausal osteoporosis with the drugs lashuna and shatavari treated in comparison method. By its guna of snigdha, vatahara, rasayana etc.


2014 ◽  
Vol 9 (4) ◽  
pp. 621-626 ◽  
Author(s):  
Jason D. Vescovi

The aim of this study was to examine the impact of maximum sprint speed on peak and mean sprint speed during youth female field hockey matches. Two high-level female field hockey teams (U-17, n = 24, and U-21, n = 20) were monitored during a 4-game international test series using global position system technology and tested for maximum sprint speed. Dependent variables were compared using a 3-factor ANOVA (age group, position, and speed classification); effect sizes (Cohen d) and confidence limits were also calculated. Maximum sprint speed was similar between age groups and positions, with faster players having greater speed than slower players (29.3 ± 0.4 vs 27.2 ± 1.1 km/h). Overall, peak match speed in youth female field hockey players reaches approximately 90% of maximum sprint speed. Absolute peak match speed and mean sprint speed during matches were similar among the age groups (except match 1) and positions (except match 2); however, peak match speed was greater for faster players in matches 3 and 4. No differences were observed in the relative proportion for mean sprint speeds for age groups or positions, but slower players consistently displayed similar relative mean sprint speeds by using a greater proportion of their maximum sprint speed.


2010 ◽  
Vol 28 (12) ◽  
pp. 2038-2045 ◽  
Author(s):  
Mara A. Schonberg ◽  
Edward R. Marcantonio ◽  
Donglin Li ◽  
Rebecca A. Silliman ◽  
Long Ngo ◽  
...  

Purpose Few data are available on breast cancer characteristics, treatment, and survival for women age 80 years or older. Patients and Methods We used the linked Surveillance, Epidemiology and End Results-Medicare data set from 1992 to 2003 to examine tumor characteristics, treatments (mastectomy, breast-conserving surgery [BCS] with radiation therapy or alone, or no surgery), and outcomes of women age 80 years or older (80 to 84, 85 to 89, ≥ 90 years) with stage I/II breast cancer compared with younger women (age 67 to 79 years). We used Cox proportional hazard models to examine the impact of age on breast cancer–related and other causes of death. Analyses were performed within stage, adjusted for tumor and sociodemographic characteristics, treatments received, and comorbidities. Results In total, 49,616 women age 67 years or older with stage I/II disease were included. Tumor characteristics (grade, hormone receptivity) were similar across age groups. Treatment with BCS alone increased with age, especially after age 80. The risk of dying from breast cancer increased with age, significantly after age 80. For stage I disease, the adjusted hazard ratio of dying from breast cancer for women age ≥ 90 years compared with women age 67 to 69 years was 2.6 (range, 2.0 to 3.4). Types of treatments received were significantly associated with age and comorbidity, with age as the stronger predictor (26% of women age ≥ 80 years without comorbidity received BCS alone or no surgery compared with 6% of women age 67 to 79 years). Conclusion Women age ≥ 80 years have breast cancer characteristics similar to those of younger women yet receive less aggressive treatment and experience higher mortality from early-stage breast cancer. Future studies should focus on identifying tumor and patient characteristics to help target treatments to the oldest women most likely to benefit.


Author(s):  
Adelina Gschwandtner ◽  
Sarah Jewell ◽  
Uma S. Kambhampati

AbstractThis paper considers the impact of two measures of lifestyle—the consumption of fruit and vegetables and doing exercise—on individual well-being. Since lifestyle is likely to be endogenous, we correct for this by using two dimensions of delayed gratification as instruments. The ability to delay gratification enables individuals to give greater weight to the investment component of lifestyle decisions rather than merely the affective component. Our analysis is based on the UK Understanding Society Data, which covers 40,000 UK households over time. We find that the two delayed gratification instruments are positive and significant in influencing lifestyle. In Stage 2, we find that fruit and vegetable consumption and sports activity increase life satisfaction, though the impacts vary for men and women. These results are robust across income quartiles, region, gender, education and age groups.


Author(s):  
Arkadiusz Marzec

Successful ageing is understood to mean a satisfactory health status, high level of financial independence, firm family and social ties and opportunities for self-realization. The best form of health promotion among the elderly is to promote physical activity. Physical and recreational health-oriented activity and prevention of diseases helps improve physical endurance and strength, and increase muscle mass, flexibility and overall motor coordination. Adequate level of physical exercise at older age effectively prevents ageing processes and ensures maintaining good psychophysical fitness, thus stimulating social integration. The study presents selected forms of recreational forms of physical activity of older adults in local environments resulting from the needs of this group of people and initiatives of local self-governments to promote health.


Sensors ◽  
2021 ◽  
Vol 21 (21) ◽  
pp. 7389
Author(s):  
Irene Cortés-Pérez ◽  
Marcelina Sánchez-Alcalá ◽  
Francisco Antonio Nieto-Escámez ◽  
Yolanda Castellote-Caballero ◽  
Esteban Obrero-Gaitán ◽  
...  

Patients with multiple sclerosis (PwMS) have a high level of fatigue and a reduced quality of life (QoL) due to the impact of multiple sclerosis (MS). Virtual reality-based therapy (VRBT) is being used to reduce disability in PwMS. The aim of this study was to assess the effect of VRBT on fatigue, the impact of MS, and QoL in PwMS. Methods: A systematic review with meta-analysis was conducted through a bibliographic search on PubMed, Scopus, Web of Science, and PEDro up to April 2021. We included randomized controlled trials (RCTs) with PwMS that received VRBT in comparison to conventional therapy (CT) including physiotherapy, balance and strength exercises, and stretching or physical activity, among others; or in comparison to simple observation; in order to assess fatigue, MS-impact, and QoL. The effect size was calculated using Cohen’s standardized mean difference with a 95% confidence interval (95% CI). Results: Twelve RCTs that provided data from 606 PwMS (42.83 ± 6.86 years old and 70% women) were included. The methodological quality mean, according to the PEDro Scale, was 5.83 ± 0.83 points. Our global findings showed that VRBT is effective at reducing fatigue (SMD −0.33; 95% CI −0.61, −0.06), lowering the impact of MS (SMD −0.3; 95% CI −0.55, −0.04), and increasing overall QoL (0.5; 95% CI 0.23, 0.76). Subgroup analysis showed the following: (1) VRBT is better than CT at reducing fatigue (SMD −0.4; 95% CI −0.7, −0.11), as well as in improving the mental dimension of QoL (SMD 0.51; 95% CI 0.02, 1); (2) VRBT is better than simple observation at reducing the impact of MS (SMD −0.61; 95% CI −0.97, −0.23) and increasing overall QoL (SMD 0.79; 95% CI 0.3, 1.28); and (3) when combined with CT, VRBT is more effective than CT in improving the global (SMD 0.6, 95% CI 0.13, 1.07), physical (SMD 0.87; 95% CI 0.3, 1.43), and mental dimensions (SMD 0.6; 95% CI 0.08, 1.11) of QoL. Conclusion: VRBT is effective at reducing fatigue and MS impact and improving QoL in PwMS.


2018 ◽  
Vol 25 (3) ◽  
pp. 17-22 ◽  
Author(s):  
Oscar Romero-Ramos ◽  
Emilio Fernández-Rodríguez ◽  
Rafael Merino-Marbán ◽  
Daniel Mayorga-Vega ◽  
Robert Podstawski

Abstract Introduction. Cross triathlon is a sport consisting of three segments: swimming, off-road cycling, and running. Our study analyses the differences in performance between genders and changes in performance in selected age categories at the ITU Cross World Championships held between 2011 and 2016. Material and methods. During this period, a total of 1,933 triathletes were analysed (1,472 men and 461 women). Two-way analyses of variance (ANOVA) were used to examine the impact of sex differences and age-related changes on performance (time, percentage of time, and performance ratio) in swimming, cycling, running, and total race. Results. The age groups with the highest level of participation were persons aged 40-44 and 45-49 years among men and women, respectively. With regards to performance in the different age groups, in men and women, its high level was maintained between 25 and 49 years, and it decreased significantly from the age of 50-54. In men, the best results in cycling and total race time were obtained in the 30-34 age group and in swimming and running in the 40-44 group. Women obtained the best results in running in the 25-29 age group, in cycling in the 30-34 group, and in swimming and total race time in the 35-39 group. Conclusions. The results of the study have confirmed that there is a demand for sports in 40+ age groups. As for performance in the different age groups, it was on a high level between 25 and 49 years and decreased significantly from the age of 50-54 onwards. According to these results, the sports training of these triathletes should be oriented so that they obtain their best results between 30 and 35 years of age.


2019 ◽  
Vol 11 (3) ◽  
pp. 72 ◽  
Author(s):  
Tomasz Ściężor

Determining the state of cloudiness at night is always a problem, especially at low levels of light pollution. This paper presents an innovative method of assessing the cloudiness of the night sky solely on the basis of all-night measurements of the brightness of the sky using generally available SQM meters. Using the numerical method of calculating the discrete derivative of the overnight brightness of the night sky from time it is possible not only to distinguish a cloudless sky from a cloudy one, but even to distinguish the high level clouds from medium and low level ones. Full Text: PDF ReferencesKyba C.C.M., Ruhtz T., Fischer J., Hölker F., Cloud Coverage Acts as an Amplifier for Ecological Light Pollution in Urban Ecosystems, PLoS ONE, vol. 6, no. 3, 2011, e17307. CrossRef Ściężor T., The impact of clouds on the brightness of the night sky, to be published in Journal of Quantitative Spectroscopy and Radiative Transfer, 2020 CrossRef Ściężor T., Kubala M., Kaszowski W., Light Pollution of the Mountain Areas in Poland, Archives of Environmental Protection, Vol.38, No.4, 2012, pp. 59-69. CrossRef Crawford D.L., Photometry: terminology and units in the lighting and astronomical sciences, The Observatory, vol. 117, 1997, pp. 14-18. DirectLink Ściężor T., Kubala M., Particulate matter as an amplifier for astronomical light pollution, Monthly Notices of the Royal Astronomical Society, vol. 444, no. 3, 2014, pp. 2487-2493. CrossRef


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