Prevalence of overweight among deaf children     

Dair J  Ellis MK  Lieberman LJ 《American annals of the deaf》2006,151(3):318-326

The study examined the prevalence of overweight cases in a sample of 151 deaf children aged 6-11 years. Participants were deaf students attending six elementary schools, both regular and special, in four states. Body mass index (BMI) was calculated using height and weight, plotted on the Center for Disease Control and Prevention (CDC) U.S. BMI-for-age growth charts, then compared to national values for same age and gender (CDC, 2006a, 2006b; National Center for Health Statistics, 2005). The results indicated that the prevalence of overweight deaf children aged 6-11 years was above the national percentage for same age and gender. A larger percentage of boys was overweight (24.7%) than girls (20.4%). After age 8 years, girls showed a consistent decrease in BMI with increasing age, a trend not demonstrated by boys. As a group, deaf children demonstrate a higher prevalence of overweight than national averages.  相似文献   

Methylphenidate and the activity of hyperactives in the informal setting   总被引：1，自引：0，他引：1  

M J Ellis  P A Witt  R Reynolds  R L Sprague 《Child development》1974,45(1):217-220

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Working with violence and confrontation using solution focused approaches: creative practice with children,young people and adults     

Natasha Ellis 《Educational Psychology in Practice》2017,33(3):338-339

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The conservation of Japanese paintings: A balance of traditional techniques,materials and modern science     

Yasuhiro Oka  Justine Ellis 《文物保护研究》2014,59(5):S260-S261

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Self-reported ability assessment in rock climbing   总被引：1，自引：1，他引：0  

Draper N  Dickson T  Blackwell G  Fryer S  Priestley S  Winter D  Ellis G 《Journal of sports sciences》2011,29(8):851-858

Level of ability within rock climbing is generally expressed in terms of a "best ascent", rated using various grading systems within the sport. The most common method of obtaining this information is via self-report. The aim of this study was to examine the validity of self-reported climbing grades. Twenty-nine competitive rock climbers (17 males, 12 females) were first asked to report their current (defined as within the last 12 months) best on-sight lead ascent grade (Aus/NZ). The participants then climbed a specifically designed indoor route, under on-sight conditions (one attempt, no route practice or preview), to obtain an assessed grade. The route increased in difficulty, and was such that the distance achieved by the climber corresponded to a particular grade. The mean (±standard deviation) self-reported and assessed grade was 22.6?±?3.4 and 22.0?±?3.0 (Aus/NZ) respectively. Despite slight over- and underestimations in males and females respectively, there was no statistically significant difference between self-reported and assessed on-sight climbing grades. The results of this study suggest that self-reported climbing grades provide a valid and accurate reflection of climbing ability.  相似文献   

Caffeine withdrawal and high-intensity endurance cycling performance     

Irwin C  Desbrow B  Ellis A  O'Keeffe B  Grant G  Leveritt M 《Journal of sports sciences》2011,29(5):509-515

In this study, we investigated the impact of a controlled 4-day caffeine withdrawal period on the effect of an acute caffeine dose on endurance exercise performance. Twelve well-trained and familiarized male cyclists, who were caffeine consumers (from coffee and a range of other sources), were recruited for the study. A double-blind placebo-controlled cross-over design was employed, involving four experimental trials. Participants abstained from dietary caffeine sources for 4 days before the trials and ingested capsules (one in the morning and one in the afternoon) containing either placebo or caffeine (1.5 mg · kg(-1) body weight · day(-1)). On day 5, capsules containing placebo or caffeine (3 mg · kg(-1) body weight) were ingested 90 min before completing a time trial, equivalent to one hour of cycling at 75% peak sustainable power output. Hence the study was designed to incorporate placebo-placebo, placebo-caffeine, caffeine-placebo, and caffeine-caffeine conditions. Performance time was significantly improved after acute caffeine ingestion by 1:49 ± 1:41 min (3.0%, P = 0.021) following a withdrawal period (placebo-placebo vs. placebo-caffeine), and by 2:07 ± 1:28 min (3.6%, P = 0.002) following the non-withdrawal period (caffeine-placebo vs. caffeine-caffeine). No significant difference was detected between the two acute caffeine trials (placebo-caffeine vs. caffeine-caffeine). Average heart rate throughout exercise was significantly higher following acute caffeine administration compared with placebo. No differences were observed in ratings of perceived exertion between trials. A 3 mg · kg(-1) dose of caffeine significantly improves exercise performance irrespective of whether a 4-day withdrawal period is imposed on habitual caffeine users.  相似文献   

Fredric Jameson’s marxist criticism     

John M. Ellis 《Academic Questions》1994,7(2):30-43

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Integrating multimedia into a distance learning environment: Is the game worth the candle?     

Timothy Ellis  & Maxine Cohen 《British journal of educational technology : journal of the Council for Educational Technology》2001,32(4):495-497

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The Samuel T. Orton award for 1983 Presented by the Orton Dyslexia Society to Eleanor Thurston Hall     

William Ellis 《Annals of dyslexia》1984,34(1):xi-xvi

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Professor Ellis responds     

Sidney A. Ellis 《Academic Questions》1995,8(4):10-11

Letters

Professor Ellis responds  相似文献