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- Fröberg, Andreas, 1985, et al.
(författare)
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Awareness of current recommendations and guidlines regarding strength training for youth
- 2014
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Ingår i: International Journal of Adolescent Medicine and Health. - : Walter de Gruyter GmbH. - 0334-0139 .- 2191-0278. ; 26:4, s. 517-523
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Tidskriftsartikel (refereegranskat)abstract
- Aim: Physical conditioning of youth has always been a controversial topic as it raises ethical, physiological, and medical issues. Current recommendations and guidelines suggest that strength training is a relatively safe and worthwhile method in conditioning youth. This, however, requires well-informed coaches who follow age-appropriate strength training recommendations and guidelines, compiles well-designed strength training programs, and provides qualified supervision and instructions. The purpose of this study was to investigate coaches’ awareness of current recommendations and guidelines regarding strength training for youth.Method: A total of 39 football (US: soccer) coaches (34 males and 5 females) training boys in age groups 8–12 years were included in this study. Data were collected using an attitude statement questionnaire, and the assertions were based upon current recommendations and guidelines.Results: The results revealed significant differences among coaches in terms of knowledge of important aspects of strength training for youth.Conclusions: The results suggested that coaches in the present study were not aware of the latest recommendations and guidelines regarding strength training for youth.
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| 2. |
- Fröberg, Andreas, 1985, et al.
(författare)
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Ledare tveksamma till styrketräningsråd för barn
- 2011
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Ingår i: Svensk Idrottsforskning : Organ för Centrum för Idrottsforskning. - Stockholm : Centrum för idrottsforskning (CIF). - 1103-4629. ; :4, s. 47-50
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 3. |
- Fröberg, Andreas, et al.
(författare)
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Ledare tveksamma tillstyrketräningsråd för barn
- 2011
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Ingår i: Svensk Idrottsforskning. - Stockholm : Centrum för idrottsforskning (CIF). - 1103-4629. ; :4, s. 47-50
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- I Sverige har vi haft en försiktig hållning till styrketräning för barn.År 2009 kom Riksidrottsförbundet med rekommendationer som imotsats till tidigare tydligt förespråkar styrketräning. I en pilotstudievisar vi bland annat att fotbollsledare från olika divisioner trots detär oeniga om vad som egentligen är det rätta.
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| 4. |
- Fröberg, Andreas, 1985, et al.
(författare)
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Objectively measured sedentary behaviour and cardio-metabolic risk in youth: a review of evidence
- 2014
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Ingår i: European Journal of Pediatrics. - : Springer Science and Business Media LLC. - 0340-6199 .- 1432-1076. ; 173:7, s. 845-860
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this paper was to review studies that examine the association between volume and pattern of objectively measured sedentary behaviour and markers of cardio-metabolic risk in youth. A search for relevant articles was conducted in PubMed and SportDiscus, and the following inclusion criteria were applied: (i) youth participants (age range 6-19); (ii) accelerometer-measured volume and/or pattern of sedentary behaviour and its association with a parts per thousand yen1 cardio-metabolic outcome; and (iii) published, in press or accepted in an English language peer-reviewed journal between January 2000 and October 2013. A total of 45 articles met the a priori criteria and, thus, were considered eligible for inclusion. Although youth accumulate approximately 6 to 8 hof daily sedentary behaviour, little evidence supports an association with individual and clustered cardio-metabolic risk when adjusted for moderate-to-vigorous physical activity (MVPA). Conclusion: We suggest that youth should be encouraged to engage in recommended levels of MVPA and reduce excessive time spent in screen-based sedentary behaviour. Future studies should examine the association between volume and pattern of objectively measured sedentarybehaviour and cardio-metabolic risk independent of time spent in MVPA.
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| 5. |
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| 6. |
- Fröberg, Andreas, 1985, et al.
(författare)
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Volume and pattern and seasonal variation of school-day sedentary time: A cross-sectional study in Swedish 2nd and 5th graders
- 2014
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Ingår i: The International Society of Behavioral Nutrition and Physical Activity (ISBNPA).
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- ABSTRACT PURPOSE: Some evidence suggests an association between sedentary behavior and increased cardio-metabolic disease risk. The purposes of this study are to describe volume and pattern of school-day sedentary time, and compare school-day sedentary time across seasons in terms of volume and pattern in Swedish 2nd and 5th graders. METHODS: Volume and pattern of sedentary time (<100 counts per minute) were objectively measured with accelerometer (Actigraph GT1X) in 75 (boys n=40) 2nd and 88 (boys n=43) 5th graders in three different schools in September 2012 and March and May 2013 (Kidscape II project). The pupils were encouraged to wear the accelerometer at the right hip by means of an elastic band for the whole school-day except during water-based activities. Pupils with three or more school days per week of accelerometer-data will be considered for further analysis. Daily mean and median of volume (total minutes spent sedentary) and number of bouts (prolonged sequences of sedentary time lasting ≥20 consecutive minutes) and breaks of sedentary time are calculated for September, March and May respectively. The one-way repeated measures analysis of variance (rANOVA) will be used when comparing seasonal variations of volume of sedentary time and number of bouts and breaks of sedentary time. RESULTS: We hypothesize that volume and pattern of sedentary time differ between age, gender and seasons. Preliminary results will be presented during the conference. CONCLUSION: This study will provide insight in volume and pattern and seasonal variations of school-day sedentary time in Swedish 2nd and 5th graders.
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| 7. |
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| 8. |
- Venkatesan, Meera, et al.
(författare)
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Polymorphisms in Plasmodium falciparum chloroquine resistance transporter and multidrug resistance 1 genes : parasite risk factors that affect treatment outcomes for P. falciparum malaria after artemether-lumefantrine and artesunate-amodiaquine.
- 2014
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Ingår i: The American journal of tropical medicine and hygiene. - : American Society of Tropical Medicine and Hygiene. - 1476-1645 .- 0002-9637. ; 91:4, s. 833-43
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Tidskriftsartikel (refereegranskat)abstract
- Adequate clinical and parasitologic cure by artemisinin combination therapies relies on the artemisinin component and the partner drug. Polymorphisms in the Plasmodium falciparum chloroquine resistance transporter (pfcrt) and P. falciparum multidrug resistance 1 (pfmdr1) genes are associated with decreased sensitivity to amodiaquine and lumefantrine, but effects of these polymorphisms on therapeutic responses to artesunate-amodiaquine (ASAQ) and artemether-lumefantrine (AL) have not been clearly defined. Individual patient data from 31 clinical trials were harmonized and pooled by using standardized methods from the WorldWide Antimalarial Resistance Network. Data for more than 7,000 patients were analyzed to assess relationships between parasite polymorphisms in pfcrt and pfmdr1 and clinically relevant outcomes after treatment with AL or ASAQ. Presence of the pfmdr1 gene N86 (adjusted hazards ratio = 4.74, 95% confidence interval = 2.29 - 9.78, P < 0.001) and increased pfmdr1 copy number (adjusted hazards ratio = 6.52, 95% confidence interval = 2.36-17.97, P < 0.001 : were significant independent risk factors for recrudescence in patients treated with AL. AL and ASAQ exerted opposing selective effects on single-nucleotide polymorphisms in pfcrt and pfmdr1. Monitoring selection and responding to emerging signs of drug resistance are critical tools for preserving efficacy of artemisinin combination therapies; determination of the prevalence of at least pfcrt K76T and pfmdr1 N86Y should now be routine.
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