Genetic and Environmental Influences on Developmental Milestones and Movement: Results From the Gemini Cohort Study     

Lee Smith  Cornelia H. M. van Jaarsveld  Clare H. Llewellyn  Alison Fildes  Guillermo Felipe López Sánchez  Jane Wardle 《Research quarterly for exercise and sport》2017,88(4):401-407

Purpose: Variability in the timing of infant developmental milestones is poorly understood. We used a twin analysis to estimate genetic and environmental influences on motor development and activity levels in infancy. Method: Data were from the Gemini Study, a twin birth cohort of 2,402 families with twins born in the United Kingdom in 2007. Parents reported motor activity level for each of the twins at age 3 months using the Revised Infant Behavior Rating Scale and reported the ages at which they first sat unsupported, crawled, and walked unaided. Results: Activity level at 3 months and ages when first sitting and crawling were about equally influenced by the shared family environment (45%–54%) and genes (45%–48%). Genetic influences dominated for age when children took their first independent steps (84%). Conclusion: Aspects of the shared family environment appear to be important influences on motor activity levels and early milestones, although the timing of walking may have a stronger genetic influence. Further research to identify the specific environmental and genetic factors that promote early activity may be important for longer-term health outcomes.  相似文献   

Prediction of abandonment in Spanish fitness centres     

Iván Clavel San Emeterio  Jorge García-Unanue  Eliseo Iglesias-Soler  Jose Luis Felipe  Leonor Gallardo 《European Journal of Sport Science》2019,19(2):217-224

Research question: The increase of physical exercise in fitness centres has turned these facilities in important active lifestyle promoters. However, only between 30% and 60% of subscribers still linked to the sports centre after a year. The aim of this study is to design a model to predict the drop out in fitness centres. Research methods: Monthly data corresponding to the actual behaviour of 14,522 members of three sport centres in Spain were recorded over the course of one year. In order to calculate the likelihood of drop out, logistic regressions were used to create predictive models for each centre. Results and findings: It was possible to predict abandonment of users of sport centres from their historical behaviour, although the predictive models obtained for each centre were not completely coincident. The effectiveness of the models was around 70%. Implications: The analysis of users’ behaviour in a fitness centre can allow to avoid the drop out and therefore the abandonment of physical activity. Segmenting the customers based on the likelihood of drop out may be useful for improving the effectiveness of the strategies of loyalty and for optimizing the organization of human and material resources.  相似文献   

Science and its enemies: a defence of scientific values     

Núñez-Sánchez  Felipe 《Metascience》2022,31(2):187-189

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Correction to: Epistemic and Political Confrontations Around the Public Policies to Fight COVID-19 Pandemic     

Moura  Cristiano B.  Nascimento  Matheus Monteiro  Lima  Nathan Willig 《Science & Education》2022,31(2):559-559

Science & Education -  相似文献   

Introducing medical students to radiological anatomy: The importance of experiential learning during the Covid-19 pandemic lockdowns     

Gustavo Bittencourt Camilo  Sérgio Murta Maciel  Gabriela Cumani Toledo Camilo  Kayan Felipe de Oliveira Andrade  Beatriz de Oliveira  Rayane da Silva Silveira  Isabella Nunes Borges Ferreira  Caroline da Silva Fernandes  Mariana Vilela Ferreira 《Anatomical sciences education》2022,15(5):980-984

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