Prediction of segmental lean mass using anthropometric variables in young adults     

Scafoglieri A  Tresignie J  Provyn S  Marfell-Jones M  Reilly T  Bautmans I  Clarys JP 《Journal of sports sciences》2012,30(8):777-785

The aim of the present study was to develop and cross-validate anthropometrical prediction equations for segmental lean tissue mass (SLM). One hundred and seventeen young healthy Caucasians (67 men and 50 women; mean age: 31.9 ± 10.0 years; Body Mass Index: 24.3 ± 3.2 kg · m(-2)) were included. Body mass (BM), stretch stature (SS), 14 circumferences (CC), 13 skinfolds (SF) and 4 bone breadths (BB) were used as anthropometric measurements. Segmental lean mass of both arms, trunk and both legs were measured by dual energy X-ray absorptiometry as the criterion method. Three prediction equations for SLM were developed as follows: arms = 40.394(BM) + 169.836(CCarm-tensed) + 399.162(CCwrist) - 85.414(SFtriceps) - 39.790(SFbiceps) - 7289.190, where Adj.R (2) = 0.97, P < 0.001, and standard error of estimate (SEE) = 355 g;trunk = 181.530(BM) + 155.037(SS) + 534.818(CCneck) + 175.638(CCchest) - 88.359(SFchest) - 147.232(SFsupraspinale) - 46522.165, where Adj.R(2) = 0.97, P < 0.001, and SEE = 1077g; and legs = 55.838(BM) + 88.356(SS) + 235.579(CCmid-thigh) + 278.595(CCcalf) + 288.984(CCankle) - 84.954(SFfront-thigh) - 53.009(SFmedial calf) - 28522.241, where Adj.R (2) = 0.96, P < 0.001, and SEE = 724 g. Cross-validation statistics showed no significant differences (P < 0.05) between observed and predicted SLM. Root mean squared errors were smallest for arms (362 g), followed by legs (820 g) and trunk (1477 g). These new prediction equations allow an accurate estimation of segmental lean mass in groups of young adults, but estimation errors of 8 to 14% can occur in certain individuals.  相似文献   

An accomplished teacher's use of scaffolding during a second-grade unit on designing games     

Chen W  Rovegno I  Cone SL  Cone TP 《Research quarterly for exercise and sport》2012,83(2):221-234

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Stressors experienced by injured athletes     

Evans L  Wadey R  Hanton S  Mitchell I 《Journal of sports sciences》2012,30(9):917-927

The purpose of this study was twofold: (a) to examine the stressors experienced by injured athletes during three phases of their recovery from sport injury, and (b) to explore the differences in the stressors experienced by team as compared to individual-sport athletes. Participants comprised previously injured high-level rugby union players (n = 5) and golfers (n = 5). Semi-structured interviews were used to explore the stressors participants experienced during three phases of injury (onset, rehabilitation and return to competitive sport). Within- and cross-case analyses showed that athletes experienced sport, medical/physical, social and financial stressors. There were a number of differences in the stressors experienced across the three phases and between team and individual-sport athletes. Findings have important implications for the design and implementation of interventions aimed at managing the potentially stressful sport injury experience and facilitating injured athletes' return to competitive sport.  相似文献   

Evaluation of thetrackstick super GPS tracker for use in walking research     

McMinn D  Rowe DA  Cuk I 《Research quarterly for exercise and sport》2012,83(1):108-113

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Rhetoric, power and legitimacy: a critical analysis of the public policy disputes surrounding stem cell research in Australia (2005-6)     

Lysaght T  Kerridge I 《Public understanding of science (Bristol, England)》2012,21(2):195-210

In December 2006, the Australian Parliament liberalized regulation governing stem cell research. This decision and preceding legislative review generated considerable public debate, which centred on objections to the deliberate creation and destruction of human embryos for research purposes. This paper draws on qualitative research conducted on the public debate surrounding this policy episode. The aim of this research was to examine how science and scientific knowledge are mobilized by participants in these debates to support their arguments. Data were collected from 109 newspaper opinion editorials as well as 23 in-depth interviews and examined using qualitative content and thematic analysis. Results of this analysis depict science as a rhetorical, moral and political resource that provides opportunities for participants to gain legitimacy, negotiate meaning and assert authority in the public domain. The mobilization of science in public discourse is discussed along with suggestions that are aimed at encouraging greater transparency and inclusiveness in public debates around contested science and emergent technologies.  相似文献   

South African Deaf education and the Deaf community     

Storbeck C  Martin D  Parkin I  Magongwa L  Druchen BP  Batchelor M  McIlroy G  De Villiers D  Captieux-Bhana N  Rasebopye L  Rasebopye D  Krige-Henderson S  Krige F  Louw A  Surtees T  Smit AL  Cox R  Henderson M 《American annals of the deaf》2010,155(4):488-518

In a special section of the american Annals of the Deaf, Deaf education and the Deaf community in South Africa are discussed. The special section is organized into 7 segments: a historical overview to establish context, the educational context, educators and learners, postgraduate education and employment, perspectives of Deaf children and their parents, sport and the arts, and spiritual lives and mental health. Throughout the entire section, however, the central focus is on the overall foundation (or lack thereof) of education for Deaf learners in South Africa.  相似文献   

Acute impact of submaximal resistance exercise on immunological and hormonal parameters in young men   总被引：2，自引：0，他引：2  

Ramel A  Wagner KH  Elmadfa I 《Journal of sports sciences》2003,21(12):1001-1008

In this study, we examined the acute effects of submaximal resistance exercise on immunological and hormonal parameters in 7 resistance-trained and 10 non-resistance-trained males. The participants, who were aged 29.5 +/- 7.1 years (mean +/- s), performed submaximal resistance exercise at 75% of their one-repetition maximum. Blood samples were taken before, during, immediately after, and 30, 60 and 120 min after exercise and analysed for leukocyte subpopulations and stress hormones. Total leukocytes, neutrophils and monocytes increased during exercise, reaching their maximum 2 h after exercise. Lymphocytes increased during exercise, T-helper cells returned to resting values after exercise, and natural killer cells and T-suppressor cells decreased below resting values. The CD4/CD8 ratio decreased during exercise but increased during recovery. The resistance-trained participants tended to have lower T-helper cell counts before, during and immediately after exercise and a lower CD4/CD8 ratio during recovery than the non-resistance-trained participants. Plasma cortisol correlated positively with leukocytes during exercise (r = 0.572, P < 0.05), but negatively with T-helper cells 30 and 60 min after exercise (r = -0.573, P < 0.05; r = -0.642, P < 0.01, respectively). Our results indicate that resistance exercise leads to acute changes in leukocyte counts, despite moderate hormonal changes, independent of training status. Regular resistance exercise might lead to decreased T-helper cell counts and a lower CD4/CD8 ratio, which could increase susceptibility to infections.  相似文献   

其自身的规律和特点。0兰台世界Lantai World30G275     

I 《新闻与写作》2004,(4)

;14;II144_14;谢英姿00070015000528影响高校档案利用的制约因素李洪喜,张海燕福建泉州黎明大学 ,福建泉州黎明大学 档案价值是通过向利用者提供服务,使之转化为社会效益和经济效益来实现的。档案最终必须和利用者打  相似文献   

How European and U.S. genetic engineering scientists view the impact of public attention on their field: a comparison     

Rabino I 《Science, technology & human values》1994,19(1):23-46

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克隆技术对医学的影响   总被引：5，自引：0，他引：5  

Wilrn.  I 邓小莉 《科学中国》1999,(3):1-5

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