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Brittany A. Smale Joseph M. Northey Disa J. Smee Nathan G. Versey 《European Journal of Sport Science》2018,18(3):315-322
This study aimed to describe the effect of compression garments on middle cerebral artery blood flow velocity (MCAv) in relation to cognitive and exercise performance whilst cycling. In a randomised-controlled-cross-over design, 15 well-trained male cyclists were recruited to participate in three identical trials wearing loose fitting shorts (control), low-grade, or medium-grade compression garments. The protocol involved four 8?min increments of cycling at 30%, 50%, 70%, and 85% maximal power output and a 4?km time-trial. Participants undertook a cognitive Stroop task at baseline and at the midpoint of each increment. MCAv was monitored with Transcranial Doppler Ultrasonography. Mean arterial pressure (MAP) and partial pressure of end-tidal CO2 (PetCO2) were measured throughout. MCAv, MAP, PetCO2, and reaction time of the complex Stroop task were influenced by exercise intensity, but not compression garments. Compression garments significantly affected cognitive accuracy in the complex Stroop task such that low-grade compression appeared to enhance cognitive accuracy in comparison to the control condition at the highest intensity (p?=?.010). Time-trial performance did not differ between the control (338.0?±?17.3 s), low-grade (338.7?±?18.7 s), or medium-grade (342.2?±?19.3 s) conditions (p?=?.114). Compression garments did not affect MCAv during exercise or time-trial performance, but compression may be beneficial for improved cognitive accuracy during high-intensity exercise. Further research is required to elucidate the potential impact on cognitive performance. 相似文献
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The present study examines adult–child touch and its functions in a Swedish preschool (for 1 to 5-year-old children). The data are naturalistic observations and video-recorded data of everyday preschool activities. The study describes the frequently occurring functions of educators’ haptic conduct (control, affectionate, affectionate-control, assisting and educative touch), discussing them in relation to the children's age, gender and type of the preschool activity. It reveals the complexity of touch, demonstrating that physical contact is used for a variety of purposes in the educators’ daily work. The educators employed touch without force, and the children did not respond with explicit and forceful resistance (such as pushing back or otherwise protesting). Adult-initiated haptic behaviour served a continuum of social purposes – from social–relational work, such as establishing and building affectively positive, caring, social relations, to practical and educative organisational efforts to manage the complex and busy preschool life. The distribution of adult–child touch categories brings attention to the bodily aspects of the early childhood educational setting and highlights some of the ways in which the requirements of the Swedish curriculum for Preschool and its focus on educare are actualised in the educators’ embodied conduct. 相似文献
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Disa Lubker Cornish Mary E. Losch Mitchell Avery 《American journal of sexuality education》2016,11(2):138-148
Monitoring fidelity of implementation is a critical task when initiating evidence-based programs. This pilot study sought to identify best practices in a fidelity monitoring process and determine the feasibility of continuing a fidelity monitoring process with a multisite, multiprogram initiative. A fidelity log was created for each of 11 curricula, and data were entered online directly by educators. Analysis included 173 fidelity logs representing five curricula; qualitative and quantitative data were analyzed. Overall fidelity scores were promising and results indicate that fidelity monitoring in such a large program is feasible and was generally well-received by participants. 相似文献
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