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Sökning: WFRF:(Fröberg Andreas 1985 )

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1.
  • Fröberg, Andreas, 1985-, et al. (författare)
  • Accelerometer-measured physical activity among adolescents in a multicultural area characterized by low socioeconomic status
  • 2018
  • Ingår i: International Journal of Adolescent Medicine and Health. - 0334-0139. ; 30:3
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: The aim of this cross-sectional study was to describe and analyze accelerometer-measured sedentary time and physical activity (PA) among adolescents in a multicultural area characterized by low socioeconomic status (SES). METHOD: Seventh-graders (n=114 (girls n=66), mean age: 12.8±0.5 y) were recruited from three schools in a multicultural area of the city of Gothenburg, Sweden. Sedentary time and PA were measured with ActiGraph™ accelerometers. RESULT: Of total wear-time, 70 (±6)% was sedentary, with girls being more sedentary than boys. Girls had less light PA (LPA) and moderate-to-vigorous PA (MVPA) than boys. Similar patterns were shown during in-school and out-of-school hours. During wear-time, 53% had a mean of ≥60 min of MVPA per day, but only 6% of the girls and 24% of the boys were sufficiently physically active every day. Girls had more sedentary bouts of ≥10 min and fewer MVPA bouts of ≥5 min per day than boys. Those who participated in organized sports spent a mean of 15 more minutes of MVPA per day compared to those who did not. No association was observed between body mass index (BMI) and sedentary time and PA. CONCLUSION: Only a few adolescents from a Swedish multicultural area characterized by low SES met the PA recommendations every day, and girls were more sedentary and less physically active than boys. Adolescents involved in organized sports had more of MVPA per day than their non-involved peers. Sedentary time and PA were not related to BMI.
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2.
  • Arvidsson, Daniel, 1974-, et al. (författare)
  • Med accelerometrar kan fysisk aktivitet mätas objektivt- Snabb metodutveckling, men mer kompetens krävs för användning fullt ut i klinisk praxis Physical Activity Measured With Accelerometers
  • 2019
  • Ingår i: Läkartidningen. - 1652-7518. ; 116
  • Forskningsöversikt (refereegranskat)abstract
    • The development of accelerometers has revolutionized measurement of physical activity, and they are used to a large extent in research and have started to be implemented into clinical settings. However, achievement of reliable outcomes requires good methodological knowledge and skills by the user. Otherwise, significant measurement errors may occur, interfering with assessment of the physical activity level in the population, group differences, associations with health parameters or effect of treatments. This paper by the Swedish Network for Objective Measurement of Movement (NORM) provides an overview of physical activity measurement including sections of data collection, processing of raw data into useful metrics and statistical analysis. It targets users of accelerometer in research, health care and national surveys.
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3.
  • Fröberg, Andreas, 1985-, et al. (författare)
  • Accelerometer-measured pattern of sedentary time and physical activity among adolescents in a multicultural area characterized by low socioeconomic status
  • 2018
  • Ingår i: How to Act. - Walter de Gruyter.
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>PURPOSE:</p><p>The aim of this cross-sectional study was to describe and analyze accelerometer-measured sedentary time and physical activity (PA) among adolescents in a multicultural area characterized by low socioeconomic status (SES).</p><p>METHOD:</p><p>Seventh-graders (n=114 (girls n=66), mean age: 12.8±0.8 y) were recruited from three schools in a multicultural area of the city of Gothenburg, Sweden. Sedentary time and PA were measured with ActiGraph™ accelerometers.</p><p>RESULT:</p><p>Of total wear-time, 70 (±6)% was sedentary, with girls being more sedentary than boys. Girls had less light PA (LPA) and moderate-to-vigorous PA (MVPA) than boys. Similar patterns were shown during in-school and out-of-school hours. During wear-time, 53% had a mean of ≥60 min of MVPA per day, but only 6% of the girls and 24% of the boys were sufficiently physically active every day. Girls had more sedentary bouts of ≥10 min and fewer MVPA bouts of ≥5 min per day than boys. Those who participated in organized sports spent a mean of 15 more minutes of MVPA per day compared to those who did not. No association was observed between body mass index (BMI) and sedentary time and PA.</p><p>CONCLUSION:</p><p>Only a few adolescents from a Swedish multicultural area characterized by low SES met the PA recommendations every day, and girls were more sedentary and less physically active than boys. Adolescents involved in organized sports had more of MVPA per day than their non-involved peers. Sedentary time and PA were not related to BMI.</p>
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4.
  • Fröberg, Andreas, 1985-, et al. (författare)
  • Awareness of current recommendations and guidelines regarding strength training for youth
  • 2014
  • Ingår i: International Journal of Adolescent Medicine and Health. - 0334-0139. ; 26:4, s. 1-7
  • 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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5.
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6.
  • Fröberg, Andreas, 1985-, et al. (författare)
  • Combinations of epoch durations and cut-points to estimate sedentary time and physical activity among adolescents
  • 2017
  • Ingår i: Measurement in Physical Education and Exercise Science. - 1091-367X .- 1532-7841. ; 21:3, s. 154-160
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of the current study was to investigate how combinations of different epoch durations and cut-points affect the estimations of sedentary time and physical activity in adolescents. Accelerometer data from 101 adolescents were derived and 30 combinations were used to estimate sedentary time, light, moderate, vigorous, and combined moderate-to-vigorous physical activity. Data were analyzed with repeated measurement analyses of variance. Large differences of sedentary time and times of different physical activity intensities were observed between 1 s and longer epoch durations using virtually all cut-points. Generally, sedentary time, moderate physical activity, vigorous physical activity, and combined moderate-to-vigorous physical activity progressively decreased, whereas light physical activity increased with longer epoch durations. The extreme differences between cut-points were large and increased with longer epoch durations for sedentary time and for all physical activity intensities except for vigorous physical activity per epoch duration. Caution is required when cross-comparing studies using different epoch durations and cut-points. To accurately register adolescents’ spontaneous intermittent physical activity behavior, short epoch durations are recommended.
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7.
  • Fröberg, Andreas, 1985-, et al. (författare)
  • Combinations of Epoch Durations and Cut-Points to Estimate Sedentary Time and Physical Activity Among Adolescents
  • 2017
  • Ingår i: HA projektet Göteborgs Universitet. - Taylor & Francis.
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>The purpose of the current study was to investigate how combinations of different epoch durations and cut-points affect the estimations of sedentary time and physical activity in adolescents. Accelerometer data from 101 adolescents were derived and 30 combinations were used to estimate sedentary time, light, moderate, vigorous, and combined moderate-to-vigorous physical activity. Data were analyzed with repeated measurement analyses of variance. Large differences of sedentary time and times of different physical activity intensities were observed between 1 s and longer epoch durations using virtually all cut-points. Generally, sedentary time, moderate physical activity, vigorous physical activity, and combined moderate-to-vigorous physical activity progressively decreased, whereas light physical activity increased with longer epoch durations. The extreme differences between cut-points were large and increased with longer epoch durations for sedentary time and for all physical activity intensities except for vigorous physical activity per epoch duration. Caution is required when cross-comparing studies using different epoch durations and cut-points. To accurately register adolescents’ spontaneous intermittent physical activity behavior, short epoch durations are recommended.</p>
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8.
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9.
  • Fröberg, Andreas, 1985- (författare)
  • "Couch-potatoeism" and childhood obesity: The inverse causality hypothesis
  • 2015
  • Ingår i: Preventive Medicine. - 0091-7435 .- 1096-0260. ; 73C, s. 53-54
  • Tidskriftsartikel (refereegranskat)abstract
    • The bulk of cross-sectional studies suggests that lower levels of physical activity are associated with childhood obesity. Although this has led to the general understanding that "couch-potatoes" are fat on account of their inactive lifestyles, cross-sectional studies do not imply causality. On the contrary, the contribution of physical activity to obesity during childhood is currently unclear, and lately, studies have suggested that "couch-potatoeism" could be the result of obesity rather than its cause. Coupled with evidence suggesting that interventions have had little effect on children's physical activity levels as well as on obesity, this inverse causality challenges the role of physical activity in childhood obesity prevention strategies.
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