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51.
Debbie Risius Alexandra Milligan Jason Berns Nicola Brown 《Journal of sports sciences》2017,35(9):842-851
To assess the effectiveness of breast support previous studies monitored breast kinematics and kinetics, subjective feedback, muscle activity (EMG), ground reaction forces (GRFs) and physiological measures in isolation. Comparing these variables within one study will establish the key performance variables that distinguish between breast supports during activities such as running. This study investigates the effects of changes in breast support on biomechanical, physiological and subjective measures during running. Ten females (34D) ran for 10 min in high and low breast supports, and for 2 min bare breasted (2.8 m·s?1). Breast and body kinematics, EMG, expired air and heart rate were recorded. GRFs were recorded during 10 m overground runs (2.8 m·s?1) and subjective feedback obtained after each condition. Of the 62 variables measured, 22 kinematic and subjective variables were influenced by changes in breast support. Willingness to exercise, time lag and superio-inferior breast velocity were most affected. GRFs, EMG and physiological variables were unaffected by breast support changes during running. Breast displacement reduction, although previously advocated, was not the most sensitive variable to breast support changes during running. Instead breast support products should be assessed using a battery of performance indicators, including the key kinematic and subjective variables identified here. 相似文献
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Efthimiadou A Asimakopoulos B Nikolettos N Giatromanolaki A Sivridis E Lialiaris TS Papachristou DN Kontoleon E 《Journal of sports sciences》2006,24(8):849-854
Although angiogenetic therapy using recombinant growth factors holds much hope for the treatment of ischaemic diseases, there are still many unanswered questions, including the method of administration, the correct dose of these factors, and the duration of the therapeutic approach. Exercise has also been suggested to induce neovascularizaiton in muscles. We evaluated the angiogenetic effects of the intramuscular administration of basic-fibroblast growth factor (b-FGF) and acidic-fibroblast growth factor (a-FGF) in rat heart, compared with rats who exercised daily. In conclusion, both the intramuscular administration of b-FGF and exercise increased significantly angiogenesis in the heart in contrast to the intramuscular administration of a-FGF, which was ineffective. 相似文献
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ABSTRACTThis paper reports on results of a questionnaire distributed to North American public libraries to determine what types of services they are providing to populations experiencing barriers to using bricks-and-mortar branches. The results indicate that many are offering homebound delivery and that bookmobiles remain popular, particularly in libraries serving large geographic areas. Some libraries are exploring kiosk, or vending machine style services. Lastly, new trends are emerging, notably pop-up libraries, vans, and book bikes. 相似文献
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Dustin Bradley Goltz Teresa Mastin Alexandra G. Murphy 《Journal of International and Intercultural Communication》2016,9(2):104-121
This study identifies and analyzes sites of discursive negotiation regarding sexual and gender minority identities in Kenya. A demonizing master narrative of homosexuality is constructed through cultural myths prevalent in Kenyan media yet challenged by claims of innate identity through strategic essentialism and glocalized naming practices. Using participant observation and creative focus group methodologies with lesbian, gay, bisexual, trans*, and intersex community members and journalists in Nairobi, Kenya this research project demonstrates the necessity of cultural humility while addressing contemporary absences in the study of queer identities in intercultural scholarship and communication research within African contexts. 相似文献
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Alexandra Ursache Kathleen Kiely Gouley Spring Dawson-McClure R. Gabriela Barajas-Gonzalez Esther J. Calzada Keith S. Goldfeld Laurie M. Brotman 《Child development》2020,91(6):e1249-e1266
This study examined longitudinal relations between emotion knowledge (EK) in pre-kindergarten (pre-K; Mage = 4.8 years) and math and reading achievement 1 and 3 years later in a sample of 1,050 primarily Black children (over half from immigrant families) living in historically disinvested neighborhoods. Participants were part of a follow-up study of a cluster randomized controlled trial. Controlling for pre-academic skills, other social–emotional skills, sociodemographic characteristics, and school intervention status, higher EK at the end of pre-K predicted higher math and reading achievement test scores in kindergarten and second grade. Moderation analyses suggest that relations were attenuated among children from immigrant families. Findings suggest the importance of enriching pre-K programs for children of color with EK-promotive interventions and strategies. 相似文献
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