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Browsing by Author "Jóhannsson, Erlingur"

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Comparison of summer and winter objectively measured physical activity and sedentary behavior in older adults: Age, gene/environment susceptibility Reykjavik study

Arnardóttir, Nanna Ýr; Óskarsdóttir, Nína Dóra; Brychta, Robert J.; Koster, Annemarie; van Domelen, Dane R.; Caserotti, Paolo; Eiriksdottir, Gudny; Sverrisdóttir, Jóhanna E.; Jóhannsson, Erlingur; Launer, Lenore J.; Gudnason, Vilmundur; Harris, Tamara B.; Chen, Kong Y.; Sveinsson, Thorarinn (MDPI AG, 2017-10-21)

In Iceland, there is a large variation in daylight between summer and winter. The aim of the study was to identify how this large variation influences physical activity (PA) and sedentary behavior (SB). Free living PA was measured by a waist-worn ...
Different cardiorespiratory fitness expressions based on the maximal cycle ergometer test show no effect on the relation of cardiorespiratory fitness to the academic achievement of nine-year-olds

Sævarsson, Elvar Smári; Svansdottir, Erla; Arngrímsson, Sigurbjörn Árni; Sveinsson, Thorarinn; Jóhannsson, Erlingur (Public Library of Science (PLoS), 2018-07-23)

The relationship between cardiorespiratory fitness and academic achievement has been inconclusive. The results may depend on how cardiorespiratory fitness is expressed. The aim of this study is to explore the impact of different cardiorespiratory fitness ...
Different factors associate with body image in adolescence than in emerging adulthood: A gender comparison in a follow-up study

Gestsdottir, Sunna; Svansdottir, Erla; Sigurðsson, Héðinn; Arnarsson, Arsaell; Ommundsen, Yngvar; Arngrímsson, Sigurbjörn Árni; Sveinsson, Thorarinn; Jóhannsson, Erlingur (Termedia Sp. z.o.o., 2018)

background Body image dissatisfaction has been linked with a range of adverse psychosocial outcomes in both genders and has become an important public health issue. Across all ages, women have reported being more dissatisfied with their bodies ...
Hreyfing og líkamlegt ástand íslenskra grunnskólabarna með þroskahömlun

Einarsson, Ingi; Daly, Daniel; Arngrímsson, Sigurbjörn Árni; Jóhannsson, Erlingur (Læknafélag Íslands, Læknafélag Reykjavíkur, 2015-04-01)

Lítið er vitað um hreyfingu, holdafar og áhættuþætti fyrir ýmsum hjarta-, æða- og efnaskiptasjúkdómum á meðal barna með þroskahömlun. Tilgangur þessarar rannsóknar var að kanna líkamlegt ástand grunnskólabarna með þroskahömlun. Efniviður og ...
Longitudinal Change in Adolescent Bedtimes Measured by Self-Report and Actigraphy

Brychta, Robert J.; Rögnvaldsdóttir, Vaka; Gudmundsdottir, Sigridur Lara; Stefansdottir, Runa; Hrafnkelsdóttir, Soffía Margrét; Gestsdottir, Sunna; Arngrímsson, Sigurbjörn Árni; Chen, Kong Y.; Jóhannsson, Erlingur (Human Kinetics, 2019-12-01)

Introduction: Sleep is often quantified using self-report or actigraphy. Self-report is practical and less technically challenging, but prone to bias. We sought to determine whether these methods have comparable sensitivity to measure longitudinal ...
Tökum til í svefnvenjunum!

Jóhannsson, Erlingur; Stefánsdóttir, Rúna Sif (Háskóli Íslands, Menntavísindasvið, 2020-04-15)

Erlingur Jóhannsson prófessor og Rúna Sif Stefánsdóttir doktorsnemi fjölluðu um fyrirbærið svefn, hvað gerist þegar við sofum og um mikilvægi svefns fyrir líðan okkar og heilsu.

Now showing items 1-6 of 6

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