| 1. |
- Ackeret, Nadja, et al.
(författare)
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Six-month stability of individual differences in sports coaches’ burnout, self-compassion and social support
- 2022
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Ingår i: Psychology of Sport And Exercise. - : Elsevier. - 1469-0292 .- 1878-5476. ; 61, s. 237-
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Tidskriftsartikel (refereegranskat)abstract
- Using a three-wave prospective cross-lagged panel design, the study examined six-month stability of burnout, self-compassion and social support among sports coaches in terms of measurement invariance, mean-level change, rank-order stability, and structural stability. The participating coaches (N = 422; Mage = 44.48, SD = 11.03) completed an online questionnaire measuring self-compassion, social support, coach burnout and demographics at baseline and two follow-ups at three months and six months. The various forms of stability were assessed using structural equation modeling. There was no significant mean-level change in burnout, self-compassion, or social support, and all three constructs exhibited measurement invariance. Rank-order stability remained relatively high, ranging from 0.78 to 0.94 across the three time points. For all three constructs, covariances between latent factors were invariant over time, indicating high structural stability. While self-compassion and social support were positively related, both were negatively related to coach burnout. These results confirm the importance of preventing and addressing symptoms of burnout, low self-compassion and poor social support in sports settings.
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| 2. |
- Adlard, Kirsten N, et al.
(författare)
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Peer support for the maintenance of physical activity and health in cancer survivors : the PEER trial - a study protocol of a randomised controlled trial.
- 2019
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Ingår i: BMC Cancer. - : Springer Science and Business Media LLC. - 1471-2407 .- 1471-2407. ; 19:1, s. 656-
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Despite an overwhelming body of evidence showing the benefits of physical activity (PA) and exercise for cancer survivors, few survivors meet the exercise oncology guidelines. Moreover, initiating, let alone maintaining exercise programs with cancer survivors continues to have limited success. The aim of this trial is to evaluate the influence of peer support on moderate-to-vigorous PA (MVPA) and various markers of health 12 months following a brief supervised exercise intervention in cancer survivors.METHODS: Men and women previously diagnosed with histologically-confirmed breast, colorectal or prostate cancer (n = 226), who are >1-month post-treatment, will be invited to participate in this trial. Once enrolled, participants will complete 4 weeks (12 sessions) of supervised high intensity interval training (HIIT). On completion of the supervised phase, both groups will be provided with written recommendations and verbally encouraged to achieve three HIIT sessions per week, or equivalent exercise that meets the exercise oncology guidelines. Participants will be randomly assigned to receive 12 months of peer support, or no peer support (control). Primary and secondary outcomes will be assessed at baseline, after the 4-week supervised HIIT phase and at 3-, 6- and 12-months. Primary outcomes will include accelerometry-derived MVPA and prescribed HIIT session adherence; whilst secondary outcomes will include cardiorespiratory fitness ([Formula: see text]), body composition, quality of life and select cytokines, myokines and inflammatory markers. Random effects mixed modelling will be used to compare mean changes in outcomes between groups at each time point. A group x time interaction will be used to formally test for differences between groups (alpha =0.05); utilising intention-to-treat analyses.DISCUSSION: If successful, peer support may be proposed, adopted and implemented as a strategy to encourage cancer survivors to maintain exercise beyond the duration of a short-term, supervised intervention. A peer support-exercise model has the long-term potential to reduce comorbidities, improve physical and mental wellbeing, and significantly reduce the burden of disease in cancer survivors.ETHICS: Human Research Ethics Committee of Bellberry Ltd. (#2015-12-840).TRIAL REGISTRATION: Australian New Zealand Clinical Trial Registry 12618001855213 . Retrospectively registered 14 November 2018. Trial registration includes all components of the WHO Trial Registration Data Set, as recommended by the ICMJE.
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| 3. |
- Adler, Dana, et al.
(författare)
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Weak Electromagnetic Fields Accelerate Fusion of Myoblasts.
- 2021
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Ingår i: International Journal of Molecular Sciences. - : MDPI. - 1661-6596 .- 1422-0067. ; 22:9
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Tidskriftsartikel (refereegranskat)abstract
- Weak electromagnetic fields (WEF) alter Ca2+ handling in skeletal muscle myotubes. Owing to the involvement of Ca2+ in muscle development, we investigated whether WEF affects fusion of myoblasts in culture. Rat primary myoblast cultures were exposed to WEF (1.75 µT, 16 Hz) for up to six days. Under control conditions, cell fusion and creatine kinase (CK) activity increased in parallel and peaked at 4-6 days. WEF enhanced the extent of fusion after one and two days (by ~40%) vs. control, but not thereafter. Exposure to WEF also enhanced CK activity after two days (almost four-fold), but not afterwards. Incorporation of 3H-thymidine into DNA was enhanced by one-day exposure to WEF (~40%), indicating increased cell replication. Using the potentiometric fluorescent dye di-8-ANEPPS, we found that exposure of cells to 150 mM KCl resulted in depolarization of the cell membrane. However, prior exposure of cells to WEF for one day followed by addition of KCl resulted in hyperpolarization of the cell membrane. Acute exposure of cells to WEF also resulted in hyperpolarization of the cell membrane. Twenty-four hour incubation of myoblasts with gambogic acid, an inhibitor of the inward rectifying K+ channel 2.1 (Kir2.1), did not affect cell fusion, WEF-mediated acceleration of fusion or hyperpolarization. These data demonstrate that WEF accelerates fusion of myoblasts, resulting in myotube formation. The WEF effect is associated with hyperpolarization but WEF does not appear to mediate its effects on fusion by activating Kir2.1 channels.
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| 4. |
- Agahi, Neda, et al.
(författare)
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Alcohol Consumption Over the Retirement Transition in Sweden : Different Trajectories Based on Education
- 2022
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Ingår i: Work, Aging and Retirement. - : Oxford University Press. - 2054-4642 .- 2054-4650. ; 8:1, s. 74-81
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Tidskriftsartikel (refereegranskat)abstract
- Retirement is a major life transition that involves changes to everyday routines, roles, and habits. Previous studies suggest that retirement may influence drinking habits. Many natural inhibitors of alcohol consumption disappear with the removal of work constraints. The potential impact depends on both individual and contextual factors. Women in the cohorts undergoing retirement now have been more active on the labor market, including the occupation of higher status jobs, which indicates more financial resources as well as a larger role loss after retirement. Also, the current cohorts who retire have had more liberal drinking habits throughout their lives compared to previous cohorts. We therefore examined changes in alcohol consumption surrounding retirement in different education groups among women and men undergoing retirement using annual data from the Health, Aging and Retirement Transitions in Sweden (HEARTS) study, a longitudinal national study of 60- to 66-year-olds (n = 5,913), from 2015 to 2018. Latent growth curve models were used to estimate trajectories of alcohol consumption. Results showed that those who retired during the follow-up increased their usual weekly alcohol consumption while those who worked or were retired throughout the period had stable drinking habits. Those who were retired reported the highest alcohol consumption. The increase surrounding retirement was driven by people with higher education. Women with tertiary education and men with intermediate or tertiary education increased their weekly alcohol intake after retirement, while those with low education had unchanged drinking habits. Mechanisms and motivations that may fuel increased alcohol intake among people with higher education should be further investigated.
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| 5. |
- Ageberg, Eva, et al.
(författare)
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Cocreating injury prevention training for youth team handball : bridging theory and practice
- 2022
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Ingår i: BMJ Open Sport and Exercise Medicine. - London : BMJ Publishing Group Ltd. - 2055-7647. ; 8:2
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Tidskriftsartikel (refereegranskat)abstract
- Although it is advocated that end-users are engaged in developing evidence-based injury prevention training to enhance the implementation, this rarely happens. The € Implementing injury Prevention training ROutines in TEams and Clubs in youth Team handball (I-PROTECT)' uses an ecological participatory design incorporating the perspectives of multiple stakeholders throughout the project. Within the I-PROTECT project, the current study aimed to describe the development of holistic injury prevention training specifically for youth handball players through using knowledge from both end-users (coaches and players) and researchers/handball experts. Employing action evaluation within participatory action research, the cyclical development process included three phases: research team preparation, handball expert-based preparation and end-user evaluation to develop injury prevention training incorporating both physical and psychological perspectives. To grow the knowledge of the interdisciplinary research team, rethinking was conducted within and between phases based on participants' contributions. Researchers and end-users cocreated examples of handball-specific exercises, including injury prevention physical principles (movement technique for upper and lower extremities, respectively, and muscle strength) combined with psychological aspects (increase end-user motivation, task focus and body awareness) to integrate into warm-up and skills training within handball practice. A cyclical development process that engaged researchers/handball experts and end-users to cocreate evidence-based, theory-informed and context-specific injury prevention training specifically for youth handball players generated a first pilot version of exercises including physical principles combined with psychological aspects to be integrated within handball practice. © 2022 BMJ Publishing Group. All rights reserved. © 2022 BMJ Publishing Group. All rights reserved.
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| 6. |
- Aggerholm, K., et al.
(författare)
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On practising in physical education : outline for a pedagogical model.
- 2018
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Ingår i: Physical Education and Sport Pedagogy. - : Informa UK Limited. - 1740-8989 .- 1742-5786. ; 23:2, s. 197-208
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Tidskriftsartikel (refereegranskat)abstract
- Background: Models-based approaches to physical education have in recent years developed as a way for teachers and students to concentrate on a manageable number of learning objectives, and align pedagogical approaches with learning subject matter and context. This paper draws on Hannah Arendt’s account ofvita activato map existing approaches to physical education as oriented towards: (a) health and exercise, (b) sport and games, and (c) experience and exploration.Purpose: The aim of the paper is to outline a new pedagogical model for physical education:a practising model. We argue that the form of human activity related to practising is not well represented in existing orientations and models. To sustain this argument, we highlight the most central aspects of practising, and at the same time describe central features of the model.Relevance and implications: The paper addresses pedagogical implications the practising model has for physical education teachers. Central learning outcomes and teaching strategies related to four essential and ‘non-negotiable’ features of the practising model are discussed. These strategies are: (1) acknowledging subjectivity and providing meaningful challenges, (2) focusing on content and the aims of practising, (3) specifying and negotiating standards of excellence and (4) providing adequate time to practising.Conclusion: The practising model has the potential to inform new perspectives on pedagogical approaches, and renew and improve working methods and learning practices, in physical education.
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| 7. |
- Ainegren, Mats, 1963-, et al.
(författare)
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Breathing resistance in automated metabolic systems is high in comparison with the Douglas Bag method and previous recommendations
- 2018
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Ingår i: Proceedings of the Institution of Mechanical Engineers, Part P. - : SAGE Publications. - 1754-3371. ; 232:2, s. 122-130
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to investigate the resistance (RES) to breathing in metabolic systems used for the distribution and measurement of pulmonary gas exchange. A mechanical lung simulator was used to standardize selected air flow rates ( , L/s). The delta pressure (∆p, Pa) between ambient air and the air inside the equipment was measured in the breathing valve’s mouthpiece adapter for four metabolic systems and four types of breathing valves. RES for the inspiratory and expiratory sides was calculated as RES = ∆p / , Pa/L/s. The results for RES showed significant (p < 0.05) between-group variance among the tested metabolic systems, as well as the breathing valves and between most of the completed . The lowest RES among the metabolic systems was found for a Douglas Bag system, with approximately half of the RES compared to the automated metabolic systems. The automated systems were found to have higher RES already at low in comparison to previous recommendations. For the hardware components, the highest RES was found for the breathing valves while the lowest RES was found for the hoses. Conclusion: The results showed that RES in metabolic systems can be minimized through conscious choices of system design and hardware components.
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| 8. |
- Ainegren, Mats, 1963-, et al.
(författare)
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Breathing resistance in metabolic systems : Its effects on pulmonary ventilation and oxygen uptake in elite athletes with high aerobic power
- 2020
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Ingår i: Proceedings of the Institution of Mechanical Engineers, Part P. - : Sage Publications. - 1754-3371. ; 234:3, s. 217-226
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate the effects on pulmonary ventilation and oxygen uptake ( (V) over dot athletes with a very high maximal oxygen uptake (V) over dotO(2)max) and corresponding high ventilation capacity when using a modern metabolic system with relatively high resistance to breathing (HIGH(RES)), compared to a traditional system with low resistance to breathing (LOWRES). Four rowers and three cross-country skiers (without asthma), competing at a high international level, performed in experimental conditions with LOWRE (S)and HIGH(RES) using a rowing ergometer and roller skis on a treadmill. The results showed that (V) over dotO(2), blood lactate, heart rate and respiratory exchange ratio were not different between the LOWRES and HIGH(RES) test conditions during both submaximal and maximal exercise. Also, the athlete's time to exhaustion (treadmill) and mean power (rowing ergometer) from maximal tests were no different between the two conditions. However, ventilation and expiratory O-2 and CO2 concentrations were different for both submaximal and maximal exercise. Thus, the authors have concluded that the differences in resistance to breathing of metabolic systems influence elite endurance athletes (V) over dot(E)at low to very high workloads, thus affecting the expired gas fractions, but not the submaximal (V) over dotO(2), (V) over dotO(2)maxand performance in a laboratory setting at sea level.
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| 9. |
- Al Fakir, Ida, 1978-
(författare)
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Guarding the boundaries of belonging: the Church of Sweden, Gypsy mission and social care in the 1910s–40s
- 2024
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Ingår i: European Review of History. - : Taylor & Francis. - 1350-7486 .- 1469-8293. ; , s. 1-21
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Tidskriftsartikel (refereegranskat)abstract
- Historically, social welfare providers have defined social and ethnic minorities such as ‘vagrants’ and Romani people as non-deserving and thus excluded them from their work. Gradually during the nineteenth century, however, Christian actors and organizations across Europe were among the first to recognize Romani groups as legitimate targets of relief. The operations required boundary changes where previously undeserving categories were transferred to deserving, thus becoming legitimate targets of relief. The article discusses the Church of Sweden’s social care for minorities, with a special focus on Romani groups from the 1910s to the 1940s. At that point, Protestant social work was permeated by conservative paternalism and focused on changing the individual through interventions defined as help-to-self-help, rather than challenging the unjust social structures in Swedish society. However, welfare measures were enacted differently depending on the majority/minority position of the individual; the recognition or rejection of minority rights affected the distribution and content of Lutheran social welfare. Examining church-led or church-endorsed activities, the contribution sheds light on the differentiation of social and ethnic subgroups and brings nuance to a field that has overlooked the Swedish state church as a welfare provider in the twentieth century. The instances of intersection between and sometimes confusion of social and ethnic boundaries serve as examples of the historicity of such boundaries and churchmen’s contribution to establishing these.
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| 10. |
- Al Fakir, Ida, 1978-
(författare)
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‘Rise up and walk!’ The Church of Sweden and the ‘problem of vagrancy’ in the early twentieth century
- 2022
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Ingår i: Scandinavian Journal of History. - : Informa UK Limited. - 0346-8755 .- 1502-7716. ; 47, s. 156-177
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Tidskriftsartikel (refereegranskat)abstract
- The article examines how people within the Church of Sweden’s leadership tried to solve ‘the problem of vagrancy’ in Sweden in the early twentieth century. In focus are the priest John Melander and the deacon Josef Flinth, who advocated and realized various activities for categories of poor and mobile men in the population. These interventions, defined as help-to-self-help, differentiated between the ‘worthy’ and the ‘unworthy’ needy. In publications and lectures, Melander and Flinth presented arguments to transfer ‘unworthy’ categories to the ‘worthy’, thereby expanding the community of value. This expansion was conditioned, however, by boundaries drawn regarding ideas on belonging and ethnicity. Working in the borderlands of the community as part of a Christian calling, Melander and Flinth contributed to the expansion of social work in the early twentieth century.
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