Lars Nyberg

Prof. Lars Nyberg

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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SRStina Rutberg
Stina Rutberg
LNLars Nyberg
Lars Nyberg
Darla CastelliDarla Castelli
Darla Castelli
ALAnna-Karin Lindqvist
Anna-Karin Lindqvist
Childhood is a critical period for the acquisition of healthy behaviors, and the promotion of sustainable healthy behavior among children is greatly important. Therefore, an increased understanding of the relationship between grit and physical activity in a school context is needed. The purpose of this study is to describe and develop an understanding of students’ and teachers’ awareness and experiences concerning grit as a health-promoting factor. Fifty-five students and three teachers participated in the study. Data were collected through the Short Grit Scale and focus group interviews. There were weak to non-significant correlations between the three teachers’ ratings of their students’ grit and the children’s own ratings. The qualitative results show that children and teachers understood the construct of grit but had slightly different perceptions of it and that grit is not considered to be set in stone. The participants made an association between grit, motivation, meaningfulness, and setting goals. The findings indicate that grit might be an ideal target for making physical activity interventions sustainable.

20 November 2020 in PLOS ONE
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Journal Article
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MPMascha Pauelsen
Mascha Pauelsen
HJHedyeh Jafari
Hedyeh Jafari
VSViktor Strandkvist
Viktor Strandkvist
LNLars Nyberg
Lars Nyberg
TGThomas Gustafsson
Thomas Gustafsson
URUlrik Röijezon
Ulrik Röijezon
Human postural control is a complex system and changes as we age. Frequency based analyses have been argued to be useful to identify altered postural control strategies in balance tasks. The aim of this study was to explore the frequency domain of the quiet stance centre of pressure of older adults with various degrees of fall-related concerns and sensorimotor functioning. We included 45 community dwelling older adults and used a force plate to register 30 seconds of quiet stance with eyes open and closed respectively. We also measured sensory and motor functions, as well as fall-related concerns and morale. We analysed the centre of pressure power spectrum density and extracted the frequency of 4 of its features for each participant. Orthogonal projection of latent structures–discriminant analysis revealed two groups for each quiet stance trial. Group 1 of each trial showed less sensory and motor decline, low/no fall-related concerns and higher frequencies. Group 2 showed more decline, higher fall-related concerns and lower frequencies. During the closed eyes trial, group 1 and group 2 shifted their features to higher frequencies, but only group 1 did so in any significant way. Higher fall-related concerns, sensory and motor decline, and explorative balancing strategies are highly correlated. The control system of individuals experiencing this seems to be highly dependent on vision. Higher fall-related concerns, and sensory and motor decline are also correlated with the inability to adjust to faster, more reactive balancing strategies, when vision is not available.

HFHanna Forsberg
Hanna Forsberg
ALAnna-Karin Lindqvist
Anna-Karin Lindqvist
SFSonja Forward
Sonja Forward
LNLars Nyberg
Lars Nyberg
SRStina Rutberg
Stina Rutberg
Children generally do not meet the recommendation of 60 min of daily physical activity (PA); therefore, active school transportation (AST) is an opportunity to increase PA. To promote AST, the involvement of parents seems essential. Using the theory of planned behavior (TPB), the aim was to develop and validate the PILCAST questionnaire to understand parents’ intentions to let their child cycle or walk to school. Cross-sectional sampling was performed, where 1024 responses were collected from parents. Confirmatory factor analysis indicated acceptable fit indices for the factorial structure according to the TPB, comprising 32 items grouped in 11 latent constructs. All constructs showed satisfying reliability. The regression analysis showed that the TPB explained 55.3% of parents’ intentions to let the child cycle to school and 20.6% regarding walking, increasing by a further 18.3% and 16.6%, respectively, when past behavior was added. The most influential factors regarding cycling were facilitating perceived behavioral control, positive attitudes, subjective and descriptive norms, and for walking, subjective and descriptive norms. The PILCAST questionnaire contributes to a better understanding of the psychological antecedents involving parents’ decisions to let their child cycle or walk to school, and may therefore provide guidance when designing, implementing and evaluating interventions aiming to promote AST.

22 August 2023 in BioMedical Engineering OnLine
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Journal Article
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HJHedyeh Jafari
Hedyeh Jafari
TGThomas Gustafsson
Thomas Gustafsson
LNLars Nyberg
Lars Nyberg
URUlrik Röijezon
Ulrik Röijezon
Background: Aging is associated with a decline in postural control and an increased risk of falls. The Center of Pressure (CoP) trajectory analysis is a commonly used method to assess balance. In this study, we proposed a new method to identify balance impairments in older adults by analyzing their CoP trajectory frequency components, sensory inputs, reaction time, motor functions, and Fall-related Concerns (FrC). Methods: The study includes 45 older adults aged $$75.2 (\pm 4.5)$$ 75.2 ( ± 4.5 ) years who were assessed for sensory and motor functions. FrC and postural control in a quiet stance with open and closed eyes on stable and unstable surfaces. A Discrete Wavelet Transform (DWT) was used to detect features in frequency scales, followed by the K-means algorithm to detect different clusters. The multinomial logistic model was used to identify and predict the association of each group with the sensorimotor tests and FrC. Results: The study results showed that by DWT, three distinct groups of subjects could be revealed. Group 2 exhibited the broadest use of frequency scales, less decline in sensorimotor functions, and lowest FrC. The study also found that a decline in sensorimotor functions and fall-related concern may cause individuals to rely on either very low-frequency scales (group 1) or higher-frequency scales (group 3) and that those who use lower-frequency scales (group 1) can manage their balance more successfully than group 3. Conclusions: Our study provides a new, cost-effective method for detecting balance impairments in older adults. This method can be used to identify people at risk and develop interventions and rehabilitation strategies to prevent falls in this population.

18 March 2023 in Health Promotion International
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Journal Article
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HFHanna Forsberg
Hanna Forsberg
SRStina Rutberg
Stina Rutberg
LNLars Nyberg
Lars Nyberg
ALAnna-Karin Lindqvist
Anna-Karin Lindqvist
Summary: Insufficient physical activity among children is a critical issue and health promoting initiatives are required to reverse this trend. In response to the current situation, a school-based intervention aiming to increase physical activity with the aid of active school transportation (AST) was implemented in one municipality in northern Sweden. By adopting the framework of the Theory of Planned Behavior, we aimed to analyse beliefs among parents whose children were or were not involved in the AST intervention. All municipality schools were included. There were 1024 responses from parents, comprising 610 who responded either ‘yes’ or ‘no’ to participating in the intervention. An adjusted linear regression analysis showed that children’s intervention participation was significantly associated with more positive beliefs towards AST among parents. These results indicates that it is possible to influence beliefs that are important in the parental decision-making process by the use of an AST intervention. Therefore, to make children’s active transport to school the more favorable choice for parents, it seems to be worthwhile to not only give children the opportunity to participate but also to involve parents and address their beliefs when designing interventions.