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Costas Chryssanthopoulos Christos Ziaras Tanja Oosthuyse Ioannis Lambropoulos Paradisis Giorgios P Elias Zacharogiannis 《Journal of sports sciences》2018,36(7):824-833
This study examined the effect of carbohydrate mouth rinsing on endurance running performance in women. Fifteen female recreational endurance runners, who used no oral contraceptives, ran two races of 1-h duration on an indoor track (216-m length) at 18:00 h after an 8-h fast with a 7-days interval between races, corresponding to the 3rd-10th day of each premenopausal runner’s menstrual cycle, or any day for the postmenopausal runners. In a double-blind random order, participants rinsed their mouth with 25 ml of either a 6.4% carbohydrate (RCHO) or a placebo solution (RP). No fluid was ingested during exercise. Serum 17β-Εstradiol (P = 0.59) and Progesterone (P = 0.35) did not differ between treatments. There was no difference in 1-hour running performance (RCHO: 10,621.88 ± 205.98 m vs. RP: 10,454.00 ± 206.64 m; t = 1.784, P = 0.096). Furthermore, the mean percentage effect (±99%CI) of RCHO relative to RP, 1.67% (?1.1% to 4.4%), and Cohen’s effect size (d = 0.21) support a trivial outcome of RCHO for total distance covered. In conclusion, carbohydrate mouth rinsing did not improve 60-min track running performance in female recreational runners competing in a low ovarian hormone condition, after an 8-h fast and when no fluid was ingested during exercise. 相似文献
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Niki Lambropoulos Xristine Faulkner Fintan Culwin 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(2):295-306
In the last decade, we have seen the emergence of virtual learning environments. Initially, these environments were a little more than document repositories that tutor used unicast to the students. Informed in part by social constructivist theories of education, later environments included capabilities for tutor–student and student–student, synchronous and asynchronous communication. The initial research of this paper reports the typical low usage of these capabilities. The main research attempted to ameliorate this problem by the provision of tools to promote a sense of social awareness as self‐presence and copresence, and evaluation techniques to analyse e‐learners' interactions. Data was obtained from prepost questionnaires, log files and social network analysis which augmented the data provided by the tools embedded in Moodle. The results indicate the importance of social awareness in effective e‐learning; the quality of active participation can be increased by the use of associated tools. The e‐tutor's role is still pivotal to facilitate and to support such engagement towards collaborative learning. Implications for future research suggest that social awareness tools and evaluation techniques can create awareness cues in an interface with a potential impact on learning. 相似文献
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Stamelos George Lambropoulos Haris Bousiou Ourania 《Tertiary Education and Management》2020,26(2):151-169
Tertiary Education and Management - Both qualitative and quantitative evaluation of the degree of organizational autonomy of Greek universities, during the period of the implementation of Law... 相似文献
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