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  • 1.
    Ekstrand, Jan
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten. Aspetar Orthopaed and Sports Med Hosp, Qatar.
    Spreco, Armin
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Windt, Johann
    Linköpings universitet, Medicinska fakulteten. US Olymp Comm, CO USA; US Coalit Prevent Illness and Injury Sport, CO USA.
    Khan, Karim M.
    Linköpings universitet, Medicinska fakulteten. Univ British Columbia, Canada.
    Are Elite Soccer Teams Preseason Training Sessions Associated With Fewer In-Season Injuries? A 15-Year Analysis From the Union of European Football Associations (UEFA) Elite Club Injury Study2020Inngår i: American Journal of Sports Medicine, ISSN 0363-5465, E-ISSN 1552-3365, artikkel-id 0363546519899359Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Preseason training develops players physical capacities and prepares them for the demands of the competitive season. In rugby, Australian football, and American football, preseason training may protect elite players against in-season injury. However, no study has evaluated this relationship at the team level in elite soccer. Purpose/Hypothesis: The aim of this study was to investigate whether the number of preseason training sessions completed by elite soccer teams was associated with team injury rates and player availability during the competitive season. It was hypothesized that elite soccer teams who participate in more preseason training will sustain fewer injuries during the competitive season. Study Design: Descriptive epidemiology study. Methods: We used the Union of European Football Associations (UEFA) injury dataset to analyze 44 teams for up to 15 seasons (total, 244 team-seasons). Separate linear regression models examined the association between the number of team preseason training sessions and 5 in-season injury measures. Injury-related problems per team were quantified by totals of the following: (1) injury burden, (2) severe injury incidence, (3) training attendance, (4) match availability, and (5) injury incidence. Results: Teams averaged 30 preseason training sessions (range, 10-51). A greater number of preseason training sessions was associated with less injury load during the competitive season in 4 out of 5 injury-related measures. Our linear regression models revealed that for every 10 additional preseason training sessions that the team performed, the in-season injury burden was 22 layoff days lower per 1000 hours (P = .002), the severe injury incidence was 0.18 severe injuries lower per 1000 hours (P = .015), the training attendance was 1.4 percentage points greater (P = .014), and the match availability was 1.0 percentage points greater (P = .042). As model fits were relatively low (adjusted R-2 = 1.3%-3.2%), several factors that contribute to in-season injury outcomes were unaccounted for. Conclusion: Teams that performed a greater number of preseason training sessions had "healthier" in-season periods. Many other factors also contribute to in-season injury rates. Understanding the benefit of preseason training on in-season injury patterns may inform sport teams planning and preparation.

  • 2.
    Faresjö, Tomas
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för prevention, rehabilitering och nära vård. Linköpings universitet, Medicinska fakulteten.
    Ludvigsson, Johnny
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, H.K.H. Kronprinsessan Victorias barn- och ungdomssjukhus Linköping/Motala.
    Wennerholm, Carina
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för omvårdnad och reproduktiv hälsa. Linköpings universitet, Medicinska fakulteten.
    Faresjö, Åshild
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Nilsson, Hans
    Linköpings universitet, Institutionen för kultur och samhälle, Avdelningen för filosofi, historia, konst och religion.
    [Public health differences between »the twin cities« persist].2019Inngår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 116, artikkel-id FI6HArtikkel i tidsskrift (Fagfellevurdert)
    Abstract [sv]

    A decade ago, major public health differences between two neighboring, equal sized large Swedish cities, Norrköping and Linköping (»the Twin cities«) were revealed. These differences were considerable for cardiovascular mortality and life expectancy. An important finding was that cardiovascular mortality rates for men and women in the city of Norrköping were highest compared to other major Swedish cities. In this follow-up, a decade later, cardiovascular mortality rates are still highest for the Norrköping population in comparison to the largest Swedish cities. There are also still profound and major public health differences between these twin cities. The differences seem to persist over time. These differences could not be explained by differences in health care, but are rather reflecting different social history and socioeconomic and life style differences in these two cities.

  • 3.
    Henriksson, Pontus
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten. Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.
    Sandborg, Johanna
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten. Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.
    Blomberg, Marie
    Linköpings universitet, Institutionen för biomedicinska och kliniska vetenskaper, Avdelningen för barns och kvinnors hälsa. Linköpings universitet, Medicinska fakulteten.
    Alexandrou, Christina
    Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.
    Maddison, Ralph
    Institute for Physical Activity and Nutrition, Deakin University, Burwood, Australia.
    Silfvernagel, Kristin
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Psykologi.
    Henriksson, Hanna
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Leppänen, Marja H
    Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden // Faculty of Sport and Health Sciences, University of Jyvaskyla, Jyvaskyla, Finland.
    Migueles, Jairo H
    Department of Physical and Sports Education, Faculty of Sport Sciences, University of Granada, Granada, Spain.
    Widman, Linnea
    Department of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
    Thomas, Kristin
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Trolle Lagerros, Ylva
    Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, Solna, Sweden // Obesity Center, Academic Specialist Center, Stockholm Health Services, Stockholm, Sweden.
    Löf, Marie
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    A Smartphone App to Promote Healthy Weight Gain, Diet, and Physical Activity During Pregnancy (HealthyMoms): Protocol for a Randomized Controlled Trial.2019Inngår i: JMIR Research Protocols, ISSN 1929-0748, E-ISSN 1929-0748, Vol. 8, nr 3, artikkel-id e13011Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Excessive gestational weight gain is common and associated with adverse outcomes both in the short and long term. Although traditional lifestyle-based interventions have shown to mitigate excess gestational weight gain, little is known about whether mobile Health (mHealth) apps can promote healthy weight gain, diet, and physical activity during pregnancy.

    OBJECTIVE: The primary aim of the HealthyMoms trial is to determine the effectiveness of a smartphone app (HealthyMoms) for mitigating excess gestational weight gain during pregnancy. Secondary aims are to determine the effectiveness of the app on dietary habits, physical activity, body fatness, and glycemia during pregnancy.

    METHODS: HealthyMoms is a two-arm randomized controlled trial. Women are being recruited at routine visits at the maternity clinics in Linköping, Norrköping and Motala, Sweden. Women are randomized to the control or intervention group (n=150 per group). All women will receive standard care, and women in the intervention group will also receive the HealthyMoms smartphone app.

    RESULTS: Recruitment of participants to the trial was initiated in October 2017, and 190 women have so far completed the baseline measurement. The baseline measures are estimated to be finalized in December 2019, and the follow-up measures are estimated to be completed in June 2020.

    CONCLUSIONS: This project will evaluate a novel smartphone app intervention integrated with existing maternity health care. If successful, it has great potential to be implemented nationally in order to promote healthy weight gain and health behaviors during pregnancy.

    INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/13011.

  • 4.
    Kypri, Kypros
    et al.
    Univ Newcastle, Australia.
    Bowe, Steven J.
    Deakin Univ, Australia.
    Karlsson, Nadine
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    McCambridge, Jim
    Univ York, England.
    Enrolment-latency in randomized behavior change trials: individual participant data meta-analysis showed association with attrition but not effect-size2020Inngår i: Journal of Clinical Epidemiology, ISSN 0895-4356, E-ISSN 1878-5921, Vol. 118, s. 55-59Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives: Nonresponse can bias prevalence estimates in population surveys. Effects of selective participation in behavior change intervention trials have been little studied. We tested hypotheses that trial participants who are hard to recruit are (1) more likely to be lost-to-follow-up and (2) less responsive to intervention. Study Design and Setting: We undertook a two-stage individual participant data meta-analysis of four alcohol intervention trials involving 9,251 university students in Australia, New Zealand, and Sweden, comparing participants who enrolled "late" (after the final invitation to participate) vs. "early" (before that). Outcomes were whether participants completed assessments at each trials primary endpoint (late/early) and number of drinks consumed per week (intervention/control) among late enrolees vs. early enrolees. Results: Late enrolees were more likely to be lost-to-follow-up than early enrolees (OR 2.3, 95% CI: 1.7, 2.9). Intervention effect estimates were smaller for late vs. early enrolees, but not significantly so (RR = 0.93; 95% CI: 0.79, 1.08). Conclusion: Greater effort to recruit trial participants was associated with higher attrition, but there was no clear evidence of bias in effect estimation. The possibility that intervention effect estimates do not generalize beyond a relatively compliant minority of trial participants may warrant further study. (C) 2019 Published by Elsevier Inc.

  • 5.
    Müssener, Ulrika
    et al.
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Löf, Marie
    Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden.
    Bendtsen, Preben
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i västra Östergötland, Medicinska specialistkliniken.
    Bendtsen, Marcus
    Linköpings universitet, Institutionen för hälsa, medicin och vård, Avdelningen för samhälle och hälsa. Linköpings universitet, Medicinska fakulteten.
    Using Mobile Devices to Deliver Lifestyle Interventions Targeting At-Risk High School Students: Protocol for a Participatory Design Study2020Inngår i: JMIR Research Protocols, ISSN 1929-0748, E-ISSN 1929-0748, Vol. 1, nr 9Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Unhealthy lifestyle behaviors such as insufficient physical activity, unhealthy diet, smoking, and harmful use of alcohol tend to cluster (ie, individuals may be at risk from more than one lifestyle behavior that can be established in early childhood and adolescence and track into adulthood). Previous research has underlined the potential of lifestyle interventions delivered via mobile phones. However, there is a need for deepened knowledge on how to design mobile health (mHealth) interventions taking end user views into consideration in order to optimize the overall usability of such interventions. Adolescents are early adopters of technology and frequent users of mobile phones, yet research on interventions that use mobile devices to deliver multiple lifestyle behavior changes targeting at-risk high school students is lacking.

    Objective: This protocol describes a participatory design study with the aim of developing an mHealth lifestyle behavior intervention to promote healthy lifestyles among high school students.

    Methods: Through an iterative process using participatory design, user requirements are investigated in terms of technical features and content. The procedures around the design and development of the intervention, including heuristic evaluations, focus group interviews, and usability tests, are described.

    Results: Recruitment started in May 2019. Data collection, analysis, and scientific reporting from heuristic evaluations and usability tests are expected to be completed in November 2019. Focus group interviews were being undertaken with high school students from October through December, and full results are expected to be published in Spring 2020. A planned clinical trial will commence in Summer 2020. The study was funded by a grant from the Swedish Research Council for Health, Working Life, and Welfare.

    Conclusions: The study is expected to add knowledge on how to design an mHealth intervention taking end users’ views into consideration in order to develop a novel, evidence-based, low-cost, and scalable intervention that high school students want to use in order to achieve a healthier lifestyle.

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