SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Hellström John) ;srt2:(2015-2019)"

Sökning: WFRF:(Hellström John) > (2015-2019)

  • Resultat 1-10 av 27
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Bielsten, Therese, et al. (författare)
  • Living Life and Doing Things Together: Collaborative Research With Couples Where One Partner Has a Diagnosis of Dementia
  • 2018
  • Ingår i: Qualitative Health Research. - : SAGE PUBLICATIONS INC. - 1049-7323 .- 1552-7557. ; 28:11, s. 1719-1734
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study is to identify relevant content for a self-management guide by using the outcomes of previous research in combination with knowledge and experiences from couples where one partner has a diagnosis of dementia. The study was carried out in three phases: (a) literature search of previous research related to well-being and couplehood in dementia; (b) interviews with couples with dementia based on the findings of the literature search; and (c) further authentication of the findings within expert groups of people with dementia and carers. For analysis of data, we used a hybrid approach of thematic analysis with combined deductive and inductive approaches. The findings of this study indicated that the four main themes Home and Neighborhood, Meaningful Activities and Relationships, Approach and Empowerment, and Couplehood with related subthemes could be appropriate targets for a self-management guide for couples where one partner has a diagnosis of dementia.
  •  
2.
  • Carlsson, Magnus, et al. (författare)
  • The effect of ball temperature on ball speed and carry distance in golf drives
  • 2018
  • Ingår i: Proceedings of the Institution of Mechanical Engineers, Part P. - London, UK : Sage Publications. - 1754-3371. ; 233:2, s. 186-192
  • Tidskriftsartikel (refereegranskat)abstract
    • The purpose of this study was to investigate the effect of ball temperature on impact ball speed and carry distance during golf drives in a blind randomized test design. The balls were exposed to a temperature-controlled environment (4 °C, 18 °C, 32 °C, and 46 °C) for 24 h prior to the test and each temperature group consisted of 30 balls. The 120 drives were performed by an elite male golfer (handicap: 0.0) in an indoor driving range. All drives were measured by a Doppler-radar system to determine the club-head speed, launch angle, spin rate, ball speed, and carry distance. Differences between the groups were investigated using a one-way analysis of variance. The results indicated that ball-speed and carry-distance differences occurred within the four groups (p < 0.001 and p < 0.01, respectively). The post hoc analyses showed that the ball temperatures of 18 °C and 32 °C had greater ball speeds and carry distances than balls at 4 °C and 46 °C (all p < 0.05). The intervals for the between-group differences were 0.6–0.7 m s –1 and 2.9–3.9 m for ball speed and carry distance, respectively. Hence, the results showed that ball temperature influences both the ball speed and the carry distance. Based on the findings in this study, standardization of ball temperature should be factored into governing body regulation tests for golf equipment. © IMechE 2018.
  •  
3.
  • Carlsson, Tomas, et al. (författare)
  • The effect of ball temperature on ball speed and carry distance in golf drives
  • 2018
  • Konferensbidrag (refereegranskat)abstract
    • THE EFFECT OF BALL TEMPERATURE ON BALL SPEED AND CARRY DISTANCE IN GOLF DRIVESCarlsson, T.1, Nilsson, J.1,2, Hellström, J.3, Tinmark, F.2, Carlsson, M.1. 1: Dalarna University (Falun, Sweden), 2: The Swedish School of Sport and Health Sciences (Stockholm, Sweden), 3: The Swedish Golf Federation (Stockholm, Sweden). IntroductionPreviously it was reported that golf-ball temperature has influence on the golf balls’ coefficient of restitution, impact duration, and maximal deformation (Allen et al., 2012). They concluded that their research was the first step in a process for determining the effect of temperature on a golf drive. However, how large influence the golf-ball temperature has on golf drives remains to be investigated. The purpose was to investigate the effect of ball temperature on impact ball speed and carry distance during golf drives in a blind randomized test design. MethodsThe balls were exposed to a temperature-controlled environment (4°C, 18°C, 32°C, and 46°C) for twenty-four hours prior to the test, and each of the four different ball-temperature groups consisted of 30 balls. The 120 drives were performed by an elite male golfer (handicap: 0.0) in an indoor driving range. All drives were measured by a Doppler-radar system to determine club-head speed, launch angle, spin rate, ball speed, and carry distance. Differences between the four ball-temperature groups were investigate using a one-way analysis of variance. ResultsThe results indicate that there are ball-speed and carry-distance differences within the four ball-temperature groups (P < 0.001 and P < 0.01, respectively). The post-hoc analyses showed that the ball temperatures 18°C and 32°C had both greater ball speeds and carry distances compared to the balls in the ball-temperature groups 4°C and 46°C (all P < 0.05); the intervals for the between-group differences were 2.0 to 2.4 km/h and 2.9 to 3.9 m for ball speed and carry distance, respectively.ConclusionThe novel results of the current study show that the ball’s temperature has a significant effect on the ball speed after club-head impact and carry distance for drives performed by an elite golfer. The ball temperatures 18°C and 32°C gave significantly increased ball speeds and carry distances compared to the ball-temperature groups 4°C and 46°C. This knowledge could be used to maximise the carry distance and/or to minimise the carry-distance variability related to ball temperature.REFERENCES:Allen T, Bowley A, Wood P, Henrikson E, Morales E, James D. (2012) Procedia Eng, 34, 634-639.
  •  
4.
  • Casselbrant, Anna, 1970, et al. (författare)
  • Luminal Polyethylene Glycol Alleviates Intestinal Preservation Injury Irrespective of Molecular Size
  • 2018
  • Ingår i: Journal of Pharmacology and Experimental Therapeutics. - : American Society for Pharmacology & Experimental Therapeutics (ASPET). - 0022-3565 .- 1521-0103. ; 366:1, s. 29-36
  • Tidskriftsartikel (refereegranskat)abstract
    • Intestinal preservation injury (IPI) and the resulting mucosa injury raise several serious challenges early after intestinal transplantation. The current clinical approach using only vascular perfusion allows the shortest preservation period among the abdominal organs. The experimental addition of luminal polyethylene glycol (PEG) solutions has been repeatedly suggested to alleviate preservation injury, improve graft quality, and prolong the preservation time. We investigated whether the molecular mass of PEG in solution influences the development of intestinal preservation injury. Small intestines of Sprague-Dawley rats were perfused with University of Wisconsin solution. Group 1 underwent vascular perfusion only (clinical control), group 2 received additional luminal PEG3350 Da, group 3 received luminal PEG10000 Da, and group 4 received luminal PEG20000 Da (n = 8/group). Tissue samples were obtained after 4, 8, and 14 hours. We studied the tissue damage (Chiu/Park score, Goblet cells, apoptosis, tight junctions), activation of c-Jun NH2-terminal kinase (JNK), and p38-mitogen-activated protein kinase (MAPK), and we performed Ussing chamber assessments. Mucosal morphologic and electrophysiologic parameters were significantly improved in the groups receiving luminal PEG. There was significantly less apoptotic activity in groups 2, 3, and 4. Both MAPKs revealed an activation peak after 4 hours with group 3 showing lesser p38-MAPK activation. PEG 20 kDa interfered with protein immunodetection. The results indicate that luminal solutions of PEG of medium and large molecular mass significantly delay the onset and development of IPI, providing further evidence that luminal interventions may allow for longer cold storage intervals of intestinal grafts.
  •  
5.
  • Fabricius, John, et al. (författare)
  • Darcy's law for flow in a periodic thin porous medium confined between two parallel plates
  • 2016
  • Ingår i: Transport in Porous Media. - : Springer Science and Business Media LLC. - 0169-3913 .- 1573-1634. ; 115:3, s. 473-493
  • Tidskriftsartikel (refereegranskat)abstract
    • We study stationary incompressible fluid flow in a thin periodic porous medium. The medium under consideration is a bounded perforated 3D-domain confined between two parallel plates. The distance between the plates is \(\delta \), and the perforation consists of \(\varepsilon \)-periodically distributed solid cylinders which connect the plates in perpendicular direction. Both parameters \(\varepsilon \), \(\delta \) are assumed to be small in comparison with the planar dimensions of the plates. By constructing asymptotic expansions, three cases are analysed: (1) \(\varepsilon \ll \delta \), (2) \(\delta /\varepsilon \sim \text {constant}\) and (3) \(\varepsilon \gg \delta \). For each case, a permeability tensor is obtained by solving local problems. In the intermediate case, the cell problems are 3D, whereas they are 2D in the other cases, which is a considerable simplification. The dimensional reduction can be used for a wide range of \(\varepsilon \) and \(\delta \) with maintained accuracy. This is illustrated by some numerical examples.
  •  
6.
  • Gibbons, Catherine, et al. (författare)
  • Postprandial profiles of CCK after high fat and high carbohydrate meals and the relationship to satiety in humans
  • 2016
  • Ingår i: Peptides. - : Elsevier BV. - 0196-9781 .- 1873-5169. ; 77, s. 3-8
  • Tidskriftsartikel (refereegranskat)abstract
    • CONTEXT: CCK is understood to play a major role in appetite regulation. Difficulties in measuring CCK have limited the potential to assess its profile in relation to food-induced satiety. Improvements in methodology and progress in theoretical understanding of satiety/satiation make it timely for this to be revisited.OBJECTIVE: First, examine how physiologically relevant postprandial CCK8/33(s) profiles are influenced by fat (HF) or carbohydrate (HCHO) meals. Second, to examine relationships between postprandial CCK and profiles of satiety (hunger/fullness) and satiation (meal size).PARTICIPANTS AND DESIGN: Sixteen overweight/obese adults (11 females/5 males) participated in a randomised-crossover study (46 years, 29.8kg/m(2)) in a university research centre. Plasma was collected preprandially and for 180min postprandially. Simultaneously, ratings of hunger/fullness were tracked for 180min before an ad libitum lunch was provided.RESULTS: CCK8/33(s) levels increased more rapidly and reached a higher peak following HF compared to HCHO breakfast (F(1,15)=14.737, p<0.01). Profiles of hunger/fullness did not differ between conditions (F(1,15)=0.505, p=0.488; F(1,15)=2.277, p=0.152). There was no difference in energy intake from the ad libitum meal (HF-3958 versus HCHO-3925kJ; t(14)=0.201, p=0.844). CCK8/33(s) profiles were not associated with subjective appetite during early and late phases of satiety; nor was there an association between CCK8/33(s) and meal size.CONCLUSIONS: These results demonstrate CCK levels were higher after HF meal compared to HCHO isocaloric meal. There was no association between CCK levels and intensity of satiety, or with meal size. Under these circumstances, CCK does not appear to play a unique independent role in satiety/satiation. CCK probably acts in conjunction with other peptides and the action of the stomach.
  •  
7.
  • Gibbons, Catherine, et al. (författare)
  • The Role of Episodic Postprandial Peptides in Exercise-Induced Compensatory Eating
  • 2017
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - : The Endocrine Society. - 0021-972X .- 1945-7197. ; 102:11, s. 4051-4059
  • Tidskriftsartikel (refereegranskat)abstract
    • Context: Prolonged physical activity gives rise to variable degrees of body weight and fat loss, and is associated with variability in appetite control. Whether these effects are modulated by postprandial, peptides is unclear. We examined the role of postprandial peptide response in compensatory eating during 12 weeks of aerobic exercise and in response to high-fat, low-carbohydrate (HFLC) and low-fat, high-carbohydrate (LFHC) meals.Methods: Of the 32 overweight/obese individuals, 16 completed 12 weeks of aerobic exercise and 16 nonexercising control subjects were matched for age and body mass index. Exercisers were classified as responders or nonresponders depending on net energy balance from observed compared with expected body composition changes from measured energy expenditure. Plasma samples were collected before and after meals to compare profiles of total and acylated ghrelin, insulin, cholecystokinin, glucagon-like peptide 1 (GLP-1), and total peptide YY (PYY) between HFLC and LFHC meals, pre- and postexercise, and between groups.Results: No differences between pre- and postintervention peptide release. Responders had greater suppression of acylated ghrelin (P < 0.05) than nonresponders, as well as higher postprandial levels of GLP-1 (P < 0.001) and total PYY (P < 0.001) compared with nonresponders and control subjects.Conclusion: No impact on postprandial peptide release was found after 12 weeks of aerobic exercise. Responders to exercise-induced weight loss showed greater suppression of acylated ghrelin and greater release of GLP-1 and total PYY at baseline. Therefore, episodic postprandial peptide profiles appear to form part of the pre-existing physiology of exercise responders and suggest differences in satiety potential may underlie exercise-induced compensatory eating.
  •  
8.
  • Harding, Andrew J. E., et al. (författare)
  • Developing a core outcome set for people living with dementia at home in their neighbourhoods and communities: study protocol for use in the evaluation of non-pharmacological community-based health and social care interventions
  • 2018
  • Ingår i: Trials. - : BIOMED CENTRAL LTD. - 1745-6215. ; 19
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The key aim of the study is to establish an agreed standardised core outcome set (COS) for use when evaluating non-pharmacological health and social care interventions for people living at home with dementia. Methods/design: Drawing on the guidance and approaches of the Core Outcome Measures in Effectiveness Trials (COMET), this study uses a four-phase mixed-methods design: 1 Focus groups and interviews with key stakeholder groups (people living with dementia, care partners, relevant health and social care professionals, researchers and policymakers) and a review of the literature will be undertaken to build a long list of outcomes. 2 Two rounds of Delphi surveys will be used with key stakeholder groups. Statements for the Delphi surveys and participation processes will be developed and informed through substantial member involvement with people living with dementia and care partners. A consensus meeting will be convened with key participant groups to discuss the key findings and finalise the COS. 3 A systematic literature review will be undertaken to assess the properties of tools and instruments to assess components of the COS. Measurement properties, validity and reliability will be assessed using the Consensus-based Standards for the Selection of Health Measurement (COSMIN) and COMET guidance. 4 A stated preference survey will elicit the preferences of key stakeholders for the outcomes identified as important to measure in the COS. Discussion: To the best of our knowledge, this study is the first to use a modified Delphi process to involve people living with dementia as a participant group. Though the study is confined to collecting data in the United Kingdom, use of the COS by researchers will enhance the comparability of studies evaluating non-pharmacological and community-based interventions.
  •  
9.
  • Harding, Andrew J. E., et al. (författare)
  • What is important to people living with dementia?: the "long-list of outcome items in the development of a core outcome set for use in the evaluation of non-pharmacological community-based health and social care interventions
  • 2019
  • Ingår i: BMC Geriatrics. - : BMC. - 1471-2318. ; 19
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundCore outcome sets (COS) prioritise outcomes based on their importance to key stakeholders, reduce reporting bias and increase comparability across studies. The first phase of a COS study is to form a long-list of outcomes. Key stakeholders then decide on their importance. COS reporting is described as suboptimal and this first phase is often under-reported. Our objective was to develop a long-list of outcome items for non-pharmacological interventions for people with dementia living at home.MethodsThree iterative phases were conducted. First, people living with dementia, care partners, health and social care professionals, policymakers and researchers (n=55) took part in interviews or focus groups and were asked which outcomes were important. Second, existing dementia trials were identified from the ALOIS database. 248 of 1009 pharmacological studies met the inclusion criteria. Primary and secondary outcomes were extracted from a 50% random sample (n=124) along with eight key reviews/qualitative papers and 38 policy documents. Third, extracted outcome items were translated onto an existing qualitative framework and mapped into domains. The research team removed areas of duplication and refined the long-list in eight workshops.ResultsOne hundred seventy outcome items were extracted from the qualitative data and literature. The 170 outcome items were consolidated to 54 in four domains (Self-Managing Dementia Symptoms, Quality of Life, Friendly Neighbourhood amp; Home, Independence).ConclusionsThis paper presents a transparent blueprint for long-list development. Though a useful resource in their own right, the 54 outcome items will be distilled further in a modified Delphi survey and consensus meeting to identify core outcomes.
  •  
10.
  • Hellström, John, et al. (författare)
  • Recruiting Immigrant Students to the Initial PE Teacher Education at the Swedish School of Sport and Health Sciences
  • 2017
  • Ingår i: Education for All. - Limerick; Ireland : Mary Immaculate College.
  • Konferensbidrag (refereegranskat)abstract
    • Recruiting immigrant students to the initial PE teacher education at the Swedish School of Sort and Health SciencesSweden is in many ways a multicultural society. Off all children living in Sweden around 20 % are themselves born or have parents who are born in another country. These children has also made an impact on Swedish sports. Today, research show that boys from immigrant families are as much a part of organized sports as children born in Sweden, while girls from immigrant families are less active in organized sports.Whereas organized sports in general show a similar pattern as society as a whole when it comes to children born in other countries, with the exception for girls, initial education for physical education (PE) does not. Studies reveals that the typical student in initial teacher education for PE is born in Sweden, grew up in the countryside and comes from families with limited tradition of higher education. In The Swedish School of sport and health sciences (GIH), only 9 % of the students in the PE teacher education program where immigrants or came from immigrant families. In this regard, the initial PE teacher education in Sweden faces a huge challenge.In our presentation we will discuss some of the strategies that GIH has adopted to recruit students with other backgrounds than the typical. We will also address some of the challenges that comes with this regarding different cultural backgrounds and basic knowledge of the Swedish sporting culture. 
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 27
Typ av publikation
tidskriftsartikel (16)
konferensbidrag (6)
recension (2)
doktorsavhandling (1)
forskningsöversikt (1)
bokkapitel (1)
visa fler...
visa färre...
Typ av innehåll
refereegranskat (24)
övrigt vetenskapligt/konstnärligt (3)
Författare/redaktör
Keady, John (4)
Oltean, Mihai, 1976 (3)
Hellström, Mats, 197 ... (3)
Hellström, Ingrid (3)
Lasrado, Reena (3)
Tinmark, Fredrik (3)
visa fler...
Pålsson, Henrik (2)
Challis, David (2)
Webb, Dominic-Luc (2)
Carlsson, Magnus (2)
Hellström, Daniel (2)
Näslund, Erik (2)
Casselbrant, Anna, 1 ... (2)
Carlsson, Tomas (2)
Reilly, Siobhan (2)
Leroi, Iracema (2)
Bielsten, Therese (2)
Hann, Mark (2)
Davies, Linda (2)
Smith, L (1)
Hellström, Ann, 1959 (1)
Wall, Peter (1)
Johnson, Urban, 1961 ... (1)
Hellström, Per M. (1)
Ley, David (1)
Gram, Magnus (1)
Sveinsdóttir, Kristb ... (1)
Ohlsson, L. (1)
Papurica, M (1)
Lundström, Staffan (1)
Biglarnia, Ali-Reza (1)
Halvorsen, Kjartan (1)
Hellström, Gunnar (1)
Hellström, Mikael, 1 ... (1)
Fabricius, John (1)
Meckbach, Jane (1)
Padma, Arvind M. (1)
Ivarsson, Andreas, 1 ... (1)
Ekblom, Maria (1)
Yttergren, Leif, 195 ... (1)
Garwicz, Martin (1)
Linders, Johan (1)
Miroshnikova, Elena (1)
Johnsson, Åse (Allan ... (1)
Hydén, Lars-Christer (1)
Arndt, Anton (1)
Brandberg, John, 196 ... (1)
Hellström, Ingrid, 1 ... (1)
Kullberg, Agneta (1)
Schumm, James (1)
visa färre...
Lärosäte
Gymnastik- och idrottshögskolan (9)
Göteborgs universitet (5)
Högskolan i Halmstad (4)
Linköpings universitet (4)
Uppsala universitet (3)
Lunds universitet (3)
visa fler...
Karolinska Institutet (2)
Högskolan Dalarna (2)
Luleå tekniska universitet (1)
Marie Cederschiöld högskola (1)
visa färre...
Språk
Engelska (24)
Svenska (3)
Forskningsämne (UKÄ/SCB)
Medicin och hälsovetenskap (19)
Humaniora (5)
Teknik (4)
Samhällsvetenskap (3)
Naturvetenskap (2)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy