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Anna Bezulska M. Naczk Z. Adach J. Arlet J. Celichowski 《Journal of sports sciences》2018,36(5):565-570
Numerous motor abilities depend on the activity of proprioceptors, which has been suggested to be genetically determined. To test this hypothesis, the control of torque generated by knee extensors and knee position was studied in 30 father–son pairs both before and immediately after running. After stabilisation of the participant in a sitting position, the knee joint of his dominant leg was flexed to 90°, and the maximal voluntary torque (MVT) of the dominant knee extensors under static conditions was measured. The participant then tried five times to produce 50% of the MVT. Next, the participant extended the knee to 45° five times without visual control. Significant correlations between the reproducibility of successive trials for groups of fathers and their sons were found. The correlation coefficients for the repeatability of the knee extension torque were 0.69 (confidence interval [CI] = 0.45–0.84; P < 0.01) and 0.75 (CI = 0.54–0.87; P < 0.01) before and after the fatiguing exercise, respectively, whereas the coefficient for the reproducibility of positioning the knee was 0.49 (CI = 0.16–0.72; P < 0.01) after the fatiguing exercise. Our results indicate a significant influence of hereditary factors on the control of limb torque and position. 相似文献
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Alicja Maurer Barbara Oszustowicz Ryszard Stocki 《International journal for the advancement of counseling》1994,17(1):35-46
This paper presents some differences between men and women regarding their attitudes to work and the implications of those attitudes regarding counselling. The subjects were 300 Polish students (150 men and 150 women) and 306 German students. The study is part of a larger collaborative research program conducted in 43 countries by Lynn (1991). The results are presented against the background of Weber's (1929) Protestant work ethic, Schumpeter's (1934) theory of competitiveness, McClelland's (1976) theory of achievement motivation, and Wiener's (1981) theory of low valuation of business.All of these theories seek to show the relationship and influence of the psychology of the individual, as that is manifested in attitude, on the economic growth of a nation. The results of the present study support Wiener's theory that the social status of business occupations play an important role in the growth of economies. They also reveal that men are generally more concerned than women, with the attitudes, and values, that are considered as a motive power of economic growth. 相似文献
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Mariusz Naczk Artur Lopacinski Wioletta Brzenczek-Owczarzak Jarosław Arlet Alicja Naczk Zdzisław Adach 《European Journal of Sport Science》2017,17(4):369-377
The aim of this study was to evaluate the influence of dry-land inertial training (IT) on muscle force, muscle power, and swimming performance. Fourteen young, national-level, competitive swimmers were randomly divided into IT and control (C) groups. The experiment lasted four weeks, during which time both groups underwent their regular swimming training. In addition, the IT group underwent IT using the Inertial Training Measurement System (ITMS) three times per week. The muscle groups involved during the upsweep phase of the arm stroke in front crawl and butterfly stroke were trained. Before and after training, muscle force and power were measured under IT conditions. Simultaneously with the biomechanical measurements on the ITMS, the electrical activity of the triceps brachii was registered. After four weeks of training, a 12.8% increase in the muscle force and 14.2% increase in the muscle power (p?<?.05) were noted in the IT group. Moreover, electromyography amplitude of triceps brachii recorded during strength measurements increased by 22.7% in the IT group. Moreover, swimming velocity in the 100?m butterfly and 50?m freestyle improved significantly following the four weeks of dry-land IT (?1.86% and ?0.76%, respectively). Changes in the C group were trivial. Moreover, values of force and power registered during the ITMS test correlated negatively with the 100?m butterfly and 50?m freestyle swimming times (r value ranged from ?.80 to ?.91). These results suggest that IT can be useful in swimming practice. 相似文献
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Alicja Konstantinidis-Pereira 《Perspectives: Policy and Practice in Higher Education》2018,22(3):98-105
This paper summarises a new method of grouping postgraduate taught (PGT) courses introduced at Oxford Brookes University as a part of a Portfolio Review. Instead of classifying courses by subject, the new cluster approach uses statistical methods to group the courses based on factors including flexibility of study options, level of specialisation, research links, vocational character and undergraduate continuity. The model of five defined clusters helps understand an increasing diversity of PGT provision better, find similarities outside of traditional subject divisions and share a good practice outside of the departmental structure of the University. It can assist with a new approach to University-wide marketing activities as well as with evaluation of performance taking into account course specifics within the clusters. The paper proposes a set of new and tailored performance indicators for PGT courses. 相似文献
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