排序方式: 共有15条查询结果,搜索用时 0 毫秒
11.
Helena P. Osana Katarzyna Przednowek Allyson Cooperman Emmanuelle Adrien 《Journal of Experimental Education》2018,86(2):154-172
The effects of prior encodings of manipulatives (red and blue plastic chips) on children's ability to use them as representations of quantity were tested. First graders (N = 73) were assigned to four conditions in which the encoding of plastic chips was experimentally manipulated. All children then participated in an addition activity that relied on the chips' quantitative representations. Children who were given quantitative encodings were better able to use the chips with meaning relative to those who played with them during the encoding phase. Children who perceived the chips as toys after encoding were similarly hindered on their ability to use them as quantities. The findings suggest that prior encodings are predictive of children's quantitative representations of manipulatives. 相似文献
12.
István Tóth-Király Camille Amoura Beáta Bőthe Gábor Orosz Adrien Rigó 《Journal of sports sciences》2020,38(8):897-909
ABSTRACTWhile previous studies highlighted the importance of the different motivations for doing sports as proposed by self-determination theory, less emphasis has been put on the simultaneous presence of multiple motivations within the same individual. Therefore, the present study aimed to investigate the complex interaction of sport motivations and to identify core (common) and peripheral (uncommon) profiles of people engaged in sports based on a combination of motivations. To achieve this goal, latent profile analysis, a person-centered approach, was performed on responses from 506 participants engaged in sports. For better understanding the extracted profiles, basic psychological need fulfillment was included as profile predictor, while subjective vitality and various engagement-related indicators as outcomes. Four core and peripheral profiles were identified: Moderately Motivated, Highly Motivated, Amotivated, and Poorly Motivated. Contrary to theory, introjected regulation clustered more closely with self-determined motivations. Profile membership was significantly predicted by global need fulfillment, autonomy satisfaction as well as, to a smaller extent, autonomy, relatedness, and competence frustration. The four profiles differed along vitality and some, but not all, engagement-related outcomes. 相似文献
13.
Adrien Cerrito Peter Milburn Clair Alston-Knox Kerrie Evans 《Journal of sports sciences》2019,37(13):1551-1559
The aim of this study was to compare cervical spine kinematics in rugby union front row players during machine-based and “live” scrummaging. Cervical spine kinematics was measured via electromagnetic tracking of sensors attached to the head and thorax. Joint angles were extracted from each trial at two time points (“bind” prior to engagement and instant of impact) for comparison between scrummaging conditions. The effect of scrummaging condition on kinematics was evaluated using a mixed effects model and estimations were based on a Bayesian framework. With differences ranging from 38° to 50°, the results show that the cervical spine is consistently more flexed when scrummaging against opponents than against a scrum machine. In contrast, there are little differences in the excursion of lateral-flexion (range 5–8°) and axial rotation (7°) between the two conditions. The findings from this study provide clear information on motion patterns in different scrum formations, and suggest that the current design of scrum machines may not promote the same pattern of movement that occurs in live scrums. The results highlight that findings from previous studies that have investigated kinematics during machine-based scrummaging may not be generalisable to a competitive scrummaging context. 相似文献
14.
Malek-Lasater Adrien D. Kwon Kyong-Ah Horm Diane M. Sisson Susan B. Dev Dipti A. Castle Sherri L. 《Early Childhood Education Journal》2022,50(2):207-219
Early Childhood Education Journal - The purpose of this study was to examine the frequency of and relationship between responsive feeding practices used during early childhood education (ECE)... 相似文献
15.
Adrien Combes Jeanne Dekerle Valérie Bougault 《European Journal of Sport Science》2018,18(10):1368-1375
VO2 fluctuations are argued to be an important mechanism underpinning chronic adaptations following interval training. We compared the effect of exercise modality, continuous vs. intermittent realized at a same intensity, on electrical muscular activity, muscular oxygenation and on whole body oxygen uptake. Twelve participants (24?±?5 years; VO2peak: 43?±?6?mL·?min?1·kg?1) performed (i) an incremental test to exhaustion to determine peak work rate (WRpeak); two randomized isocaloric exercises at 70%WRpeak; (ii) 1 bout of 30 min; (iii) 30 bouts of 1?min work intercepted with 1?min passive recovery. For electromyography, only the CON exercise showed change for the vastus lateralis root-mean-square (+6.4?±?5.1%, P?.01, 95%CI 3.2, 8.3) and mean power frequency (?5.2?±?4.8, P?.01, 95%CI ?8.2, ?3.5). Metabolic fluctuations (i.e. Oxygen Fluctuation Index and HHb Fluctuation Index) were higher in the intermittent modality, while post-exercise blood lactate concentrations (4.80?±?1.50 vs. 2.32?±?1.21?mM, respectively, for the CON and INT, P?.01, 95%CI 1.72, 3.12) and the time spent over 90% of VO2 target (1644?±?152 vs. 356?±?301?sec, respectively, for the CON and INT, P?.01, 95%CI 1130, 1446) were higher in the continuous modality. In conclusion, despite a similar energy expenditure and intensity, intermittent and continuous exercises showed two very different physiological responses. The intermittent modality would lead to a larger recruitment of fast twitch fibres that are less mitochondria-equipped and therefore may be more likely respondent to mitochondrial adaptations. In addition, this modality induces greater metabolic variations, a stimulus who could lead to mitochondrial development. 相似文献