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- Lindroos, Anna-Karin, 1958, et al.
(author)
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Use of a Web-Based Dietary Assessment Tool (RiksmatenFlex) in Swedish Adolescents: Comparison and Validation Study
- 2019
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In: Journal of Medical Internet Research. - : JMIR Publications Inc.. - 1438-8871. ; 21:10
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Journal article (peer-reviewed)abstract
- Background: A Web-based dietary assessment tool-RiksmatenFlex-was developed for the national dietary survey of adolescents in Sweden. Objective: This study aimed to describe the Web based method RiksmatenFlex and to test the validity of the reported dietary intake by comparing dietary intake with 24-hour dietary recalls (recall interviews), estimated energy expenditure, and biomarkers. Methods: Adolescents aged 11-12, 14-15, and 17-18 years were recruited through schools. In total, 78 students had complete dietary information and were included in the study. Diet was reported a few weeks apart with either RiksmatenFlexDiet (the day before and a random later day) or recall interviews (face-to-face, a random day later by phone) in a cross-over, randomized design. At a school visit, weight and height were measured and blood samples were drawn for biomarker analyses. Students wore an accelerometer for 7 days for physical activity measurements. Dietary intake captured by both dietary methods was compared, and energy intake captured by both methods was compared with the accelerometer-estimated energy expenditure (EEest). Intake of whole grain wheat and rye and fruit and vegetables by both methods was compared with alkylresorcinol and carotenoid concentrations in plasma, respectively. Results: The mean of the reported energy intake was 8.92 (SD 2.77) MJ by RiksmatenFlexDiet and 8.04 (SD 2.67) MJ by the recall interviews (P=.01) Intake of fruit and vegetables was 224 (169) g and 227 (150) g, and whole grain wheat and rye intake was 12.4 (SD 13.2) g and 12.0 (SD 13.1) g, respectively; the intakes of fruit and vegetables as well as whole grain wheat and iye did not differ between methods. Intraclass correlation coefficients ranged from 0.57 for protein and carbohydrates to 0.23 for vegetables. Energy intake by RiksmatenFlexDiet was overreported by 8% (P=.03) but not by the recall interviews (P=.53) compared with EEest. The Spearman correlation coefficient between reported energy intake and EEest was 0.34 (P=.008) for RiksmatenFlexDiet and 0.16 (P=.21) for the recall interviews. Spearman correlation coefficient between whole grain wheat and rye and plasma total alkylresorcinol homologs was 0.36 (P=.002) for RiksmatenFlexDiet and 0.29 (P=.02) for the recall interviews. Spearman correlations between intake of fruit and vegetables and plasma carotenoids were weak for both dietary tools. The strongest correlations were observed between fruit and vegetable intake and lutein/zeaxanthin for RiksmatenFlexDiet (0.46; P<.001) and for recall interviews (0.28; P=.02). Conclusions: RiksmatenFlexDiet provides information on energy, fruit, vegetables, and whole grain wheat and rye intake, which is comparable with intake obtained from recall interviews in Swedish adolescents. The results are promising for cost-effective dietary data collection in upcoming national dietary surveys and other studies in Sweden. Future research should focus on how, and if, new technological solutions could reduce dietary reporting biases.
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| 3. |
- Stigson, Helena, 1979, et al.
(author)
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Incidence of Acute Injuries among Licensed and Non-Licensed Cyclists using Insurance Registry Data
- 2019
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In: 2019 IRCOBI Conference Proceedings. - : International Research Council on the Biomechanics of Injury.
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Conference paper (peer-reviewed)abstract
- Few previous studies have examined acute injuries in competitive cycling or training as compared to other sports. By using nationwide insurance data including all injured cyclist registered in the Swedish Cycling Federation and all reported injuries during exercise race in Sweden, the objective was to examine acute injuries during competitive cycling or training for different types of cyclists. The injury incidence and injuries leading to permanent medical impairment were examined. All cyclists that were injured during 2008-2017 were included (n=1937).Among the 2666 licensed cyclists the incidence of cyclists injured during training or competition was 44 per 1000 licensed cyclists per year. Focusing on participants in exercise races, the incidence was annually 1.5 injured cyclists per 1000 participants per year. The most commonly injured body region was the upper extremity (41%), followed by head and neck (18%). In total 9.4% of all injured cyclists sustained a permanent medical impairment. Given an injury, non-licensed participants in exercise races were slightly older, and the proportion of females were higher (30% vs. 16%), than among licensed cyclists. The injury incidence among the cyclists was high, and to maintain a healthy and physically active population it is important to make efforts to prevent injuries.
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