Understanding Youth Obesity and Media Use: Implications for Future Intervention Programs

Nearly six years have passed since the Physical Activity and Health: A Report of the Surgeon General (USDHHS, 1996) described the health and fitnesa status of Amrica's yarth. The Sugeon Guxd's Call to Action to prevent and Decrease Overweight and Obesity (USDHHS, 2001) provides a camprehensive review of research on the epidemiology, health risks, and prevalence of obesity in all segments of the poplation. Increasinngly, children and adolescents are turning to sedentary kisure-time activities. Media use has been linked to decread physical activity levels, incearsed BMI, and increased high-enugy food intake. This review of litnature pravides a comprehensive examination of the influence media use has on youth adiposity, dietary habits. and physical activity. Current and future intervention programs to decrease sedentary behavior in children are also highlighted. Reducing media use (including television, videaape viewing, nonacademic computer use, and video game playing) in youth cau address leisure-time sedentary behaviors. Future intervention program, using run interdisciplinary appach, need to decrease leisure-time sedentary behaviors while promoting active lifestyles.     

Books reviews

J. Neils (ed.), Goddess and Polis: The Panathenaic Festival in Ancient Athens (Princeton: Princeton University Press, 1993). Pp. 227, 24 colour plates, 170 b&w illus. $49.50 (£37.50) cloth; $19.95 (£13.95) paper. ISBN 0–691–03612–8 (cloth); 0–691–00223–1 (paper).

Steven H. Lonsdale, Dance and Ritual Play in Greek Religion (Baltimore and London: Johns Hopkins University Press, 1993). Pp. xxi + 352. Illustrations, bibliography, indexes. $39.95. ISBN 0–8018–4594–7.

Ramachandra Guha, Spin and Other Turns: Indian Cricket's Coming of Age (London: Penguin Books, 1994). Pp. xii + 158. Rs 100. ISBN 0–14–024720–3.

Robert Mechikoff and Steven Estes, A History and Philosophy of Sport and Physical Education: From the Ancient Greeks to the Present (Dubuque, Iowa: William C. Brown, 1993). Pp. 391. $29.50. ISBN 0–697–12159–3. Elliot J. Gorn and Warren Goldstein, A Brief History of American Sports (New York: Hill and Wang — Farrar, Straus and Giroux, 1993). ISBN 0–8090–1561–7. Pp. 290. $11.95.

Richard O. Davies, America's Obsession: Sports and Soceity since 1945 (Orlando, Florida: Harcourt Brace, 1994). Pp. 274. $16.00. ISBN 0–03–073332–4.

Ted Vincent, The Rise and Fall of American Sport: Mudville's Revenge (Lincoln: University of Nebraska Press, 1994). Pp. 358. ISBN 0–8032–9613–4.

Leonard Koppett, Sports Illusion, Sports Reality: A Reporter's View of Sports, Journalism and Society (Urbana and Chicago: University of Ilinois Press, 1994) paperback reprint of book originally published in 1981. Pp. xiv + 296. ISBN 0–252–06415–1.

Gilbert Andrieu, Force et beauté. Histoire de l'esthétique en éducation physique (Bordeaux: Presses Universitaires de Bordeaux, 1992). Pp. 252. FF150. ISBN 2–86781–125–2.

Charles Fountain, Sportswriter: The Life and Times of Grantland Rice (New York: Oxford University Press, 1993). Pp. 327. $25.00. ISBN 0–19–506176–4.

Peter Levine, Ellis Island to Ebbets Field: Sport and the American Jewish Experience (New York and Oxford: Oxford University Press, 1992).

Charles S. Prebish. Religion and Sport: The Meeting of Sacred and Profane (Westport, Ct.: Greenwood Press, 1993). Pp. xix + 243. ISBN 0–313–28729–5.

Tom Derderian, Boston Marathon: The History of the World's Premier Running Event (Champaign: Human Kinetics Publishers, 1994). Pp. xxvi + 606. $21.95 (paperback). ISBN 0–87322–491–4.

Kevin McAleer, Dueling, The Cult of Honor in Fin‐de‐Siècle Germany (Princeton: Princeton University Press, 1994). Pp. 268. $24.95. ISBN 0–691–03462–1.     

LEARNING COHERENT MATHEMATICS THROUGH SEQUENCES OF MICROTASKS: MAKING A DIFFERENCE FOR SECONDARY LEARNERS

We report on the work of 3 schools which set out to make a difference for their previously low-attaining students. Through naturalistic enquiry over 3 years, we built a picture of their practices. Against a national trend, students reported positive attitudes to mathematics and, in 2 out of 3 schools, showed improvement in attainment, so we probe more deeply into the teaching. The lessons broadly conformed to an approach combining inclusive participation with complex and coherent development of mathematical ideas. To understand how the teachers orchestrated this, we developed lesson analysis techniques that focus on how thinking, repertoire and understanding are scaffolded by teachers through sequences of microtasks.