Syfte Syftet med studien var att undersöka hur energibalansmätning och aktivitetsregistrering med indirekt respiratorisk kalorimetri, accelerometer, kostdagbok och aktivitetsdagbok, uppfattades av överviktiga barn och tonåringar och att jämföra uppfattningarna mellan barn i olika åldrar och av olika kön.   Metod 129 överviktiga barn valdes ut med ett konsekutivt urval då de kom för energibalansmätning på Energimetaboliska laboratoriet vid Uppsala Universitet mellan 2008 och mars 2012. En enkät fylldes i av barnen efter att de genomgått en mätdag på laboratoriet samt fyra mätdagar självständigt i hemmet. Enkäten innehöll elva frågor varav tio frågar handlade om de olika mätmetoderna som barnen genomgått. Författarna koncentrerade sig på fyra av dessa mätmetoder. Frågorna besvarades med hjälp av femgradiga skalor, varav resultaten sammanställdes för en statistisk analys.   Resultat Huvudresultatet visade att alla fyra mätmetoder uppfattades någorlunda likvärdigt av barnen, oavsett kön. Dock kunde det påvisas att den yngre åldersgruppen (4-9 år) överlag hade tendenser till en positivare uppfattning av mätmetoderna än barnen i åldrarna 10-13 och 14-17 år. Ingen signifikans kunde påvisas från de olika resultaten.   Slutsats Sammanfattningsvis framkom att ett behov av förbättring för vissa av mätinstrumenten fanns. Resultatet visade också att det fanns ett behov för effektivisering av vissa mätmetoder, ny design för instrumenten samt hjälpmedel för att uppnå bra registrering av kost och aktiviteter.

<p><p>Objective:</p><p>This study aimed to investigate the correlation between physical activity level (PAL), measured with activity diary and accelerometer, among overweight and obese children and adolescents. The aim was also to study differences in PAL between girls and boys.</p><p>Design:</p><p>55 children and adolescents, whom been subjected to a physical activity registration with a physical activity diary and accelerometer during three or four days, were included in this study. From the data received from the children’s journal records PAL was calculated and compiled for statistic analysis.</p><p>Results:</p><p>The results of the study showed that the children underestimated their physical activity level when measured with activity diary, in comparison with the physical activity level measured with accelerometer. Differences between girl and boys PAL values were not statistically significant, although the girls PAL values from the accelerometer, but not from the activity diary, reached a moderate activity level according to Nordic nutrition recommendation. No correlation between the activity diary and accelerometer was found.</p><p>Conclusions:</p><p>The Activity diary can not be used as solitary instrument to mesure physical activity in obese or overweight children.</p><p>There is no validated way to measure physical activity in overweight or obese children.</p><p>Before studies can be conducted with reliable results, physical activity level scales and calculated BMR must be designed for overweight and obese children.</p></p>

Aim: The aim with the current study was to examine the physical activity levels (PAL) in a group of children and adolescents with cystic fibrosis (CF) and compare PAL-values between boys and girls. Further, the aim was to look at the total energy expenditure (TEE) estimated with an activity diary and measured with the accelerometer and compare values between these two measurement methods. Method: The sample consisted of 29 children and adolescents diagnosed with CF where PAL and TEE was measured during a three-day registration with activity diary and the ActiCal© accelerometer. The data was analyzed with the Mann-Whitney U-test. Results: The results indicated that the girls had a slightly higher median PAL-value than the boys. In addition, the range between the lowest and highest PAL-value was larger among the boys. The lowest PAL-value was lower among the boys than among the girls and the highest value was similar to the girls’ highest PAL-value. Overall, the subjective estimation of the PAL-values were slightly higher than what was objectively measured by the accelerometer. There was a slight difference between TEE estimated with the activity diary compared to the TEE measured by the accelerometer. There was no significant difference in PAL-values between boys and girls. Conclusion: There was no significant difference in PAL-value between boys and girls and that there was a slight difference in TEE estimated with the activity diary and measured with the accelerometer. Both methods of data collection are reliable enough when used together to produce a valid estimation of CF- children’s activity levels and TEE. The fact that both PAL and TEE values were higher in the activity diary may be because the participants perceived a higher level of physical activity then what was objectively measured with the accelerometer.

Objective: This study aimed to investigate the correlation between physical activity level (PAL), measured with activity diary and accelerometer, among overweight and obese children and adolescents. The aim was also to study differences in PAL between girls and boys. Design: 55 children and adolescents, whom been subjected to a physical activity registration with a physical activity diary and accelerometer during three or four days, were included in this study. From the data received from the children’s journal records PAL was calculated and compiled for statistic analysis. Results: The results of the study showed that the children underestimated their physical activity level when measured with activity diary, in comparison with the physical activity level measured with accelerometer. Differences between girl and boys PAL values were not statistically significant, although the girls PAL values from the accelerometer, but not from the activity diary, reached a moderate activity level according to Nordic nutrition recommendation. No correlation between the activity diary and accelerometer was found. Conclusions: The Activity diary can not be used as solitary instrument to mesure physical activity in obese or overweight children. There is no validated way to measure physical activity in overweight or obese children. Before studies can be conducted with reliable results, physical activity level scales and calculated BMR must be designed for overweight and obese children.