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1.
  • Andersson, Helena, et al. (författare)
  • Elite football on artificial turf versus natural grass : movement patterns, technical standards, and player impressions
  • 2008
  • Ingår i: Journal of Sports Sciences. - 0264-0414. ; 26:2, s. 113-22
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of the present study was to examine the movement patterns, ball skills, and the impressions of Swedish elite football players during competitive games on artificial turf and natural grass. Time - motion analyses (36 observations) and technical analyses (16 team observations) were performed and 72 male and 21 female players completed a questionnaire. No differences were observed between artificial turf and natural grass in terms of total distance covered (mean 10.19 km, s = 0.19 vs. 10.33 km, s = 0.23), high-intensity running (1.86 km, s = 0.10 vs. 1.87 km, s = 0.14), number of sprints (21, s = 1 vs. 22, s = 2), standing tackles (10, s = 1 vs. 11, s = 1) or headers per game (8, s = 1 vs. 8, s = 1), whereas there were fewer sliding tackles (P < 0.05) on artificial turf than natural grass (2.1, s = 0.5 vs. 4.3, s = 0.6). There were more short passes (218, s = 14 vs. 167, s = 12) and midfield-to-midfield passes (148, s = 11 vs. 107, s = 8) (both P < 0.05) on artificial turf than natural grass. On a scale of 0-10, where 0 = "better than", 5 = "equal to", and 10 = "worse than", the male players reported a negative overall impression (8.3, s = 0.2), poorer ball control (7.3, s = 0.3), and greater physical effort (7.2, s = 0.2) on artificial turf than natural grass. In conclusion, the running activities and technical standard were similar during games on artificial turf and natural grass. However, fewer sliding tackles and more short passes were performed during games on artificial turf. The observed change in playing style could partly explain the male players' negative impression of artificial turf.
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2.
  • Andersson, Helena, et al. (författare)
  • Neuromuscular fatigue and recovery in elite female soccer effects of active recovery
  • 2008
  • Ingår i: Medicine & Science in Sports & Exercise. - 0195-9131. ; 40:2, s. 372-380
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To investigate the time course of recovery from neuromuscular fatigue and some biochemical changes between two female soccer matches separated by an active or passive recovery regime. METHODS: Countermovement jump (CMJ), sprint performance, maximal isokinetic knee flexion and extension, creatine kinase (CK), urea, uric acid, and perceived muscle soreness were measured in 17 elite female soccer players before, immediately after, 5, 21, 45, 51, and 69 h after a first match, and immediately after a second match. Eight players performed active recovery (submaximal cycling at 60% of HRpeak and low-intensity resistance training at < 50% 1RM) 22 and 46 h after the first match. RESULTS: In response to the first match, a significant decrease in sprint performance (-3.0 +/- 0.5%), CMJ (-4.4 +/- 0.8%), peak torque in knee extension (-7.1 +/- 1.9%) and flexion (-9.4 +/- 1.8%), and an increase in CK (+ 152 +/- 28%), urea (15 +/- 2), uric acid (+ 11 +/- 2%), and muscle soreness occurred. Sprint ability was first to return to baseline (5 h) followed by urea and uric acid (21 h), isokinetic knee extension (27 h) and flexion (51 h), CK, and muscle soreness (69 h), whereas CMJ was still reduced at the beginning of the second match. There were no significant differences in the recovery pattern between the active and passive recovery groups. The magnitude of the neuromuscular and biochemical changes after the second match was similar to that observed after the first match. CONCLUSION: The present study reveals differences in the recovery pattern of the various neuromuscular and biochemical parameters in response to a female soccer match. The active recovery had no effects on the recovery pattern of the four neuromuscular and three biochemical parameters.
3.
  • Bäckström, Åsa, 1966- (författare)
  • Kroppen, brädan, lärandet
  • 2010
  • Ingår i: Den lärande staden. - Umeå : Boréa. - 978-91-89140-65-3 ; s. 113-129
  • Bokkapitel (övrigt vetenskapligt)abstract
    • I stadslandskapet manifesteras människans makt över naturen. Staden är dynamisk; den skapas och omskapas ständigt i takt med förändrade politiska och kulturella ideal. Dess olika miljöer används – medvetet och omedvetet – för olika typer av lärande. Skolgården och slottsparken kan fungera som budbärare med pedagogiska avsikter för både barn och vuxna, gallerian kan ses som ett klassrum och detaljhandeln som kunskaps- och kulturformande faktorer.           När olika grupper intar det offentliga rummet uppstår nya mötesplatser och samspelsmönster. Ser det sociala samspelet likadant ut i förorten, på handelsgatan och i innerstaden? Hur och när tar exempelvis unga kvinnor staden i besittning?
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4.
  • Bäckström, Åsa, 1966- (författare)
  • På den postmoderna vågen
  • 2012
  • Ingår i: Idrottsforum.org. - Malmö : Idrottsvetenskap, Lärarutbildningen, Malmö högskola. - 1652–7224.
  • Recension (populärvet., debatt m.m.)
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5.
6.
  • Bäckström, Åsa, 1966- (författare)
  • Understanding the fleshiness of knowing : Sensory ethnography as a way of examining teaching and knowing in physical education
  • 2012
  • Konferensbidrag (refereegranskat)abstract
    • This paper discusses research about how knowing and teaching is formed as part of the physical activity of skateboarding. Through a four-year project in educations sciences focusing on the cross-roads of mind, body, place and learning, the sensory ethnography approach (Pink 2009) made it possible to explore how knowing was expressed by skateboard coaches in their teaching. The semi-structured character of skateboarding contributed with a setting were the moving body is central, but without the formalized educational framework. To begin with, this methodological approach foregrounded how perception and the senses were involved but also showed the need to go beyond the five-sense sensorium, particularly in relation to understanding the process of teaching and knowing balance and explosiveness, which are both crucial for skateboarding proficiency. Moreover, this research revealed the implications of reflective auto-ethnographic elements in the process of field-work. As a researcher it became apparent how this sensory embeddedness not only informed the research participants’ teaching and knowing, but also my own way of understanding the fleshiness of knowing. In this paper I will explore more deeply the question of the researcher’s route to knowing. To develop this discussion I will build on two existing approaches to defining kinesthetic empathy (Sklar 1998; Parviainen 2003) to suggest how this concept might inform our understandings of how learning is sensory and emplaced (Fors, et al, forthcoming), as well as socio-affective (Tomkins, 1962). In doing so I address related epistemological issues regarding the moving, learning and un/knowing body (e.g. Moyal Sharrock, 2004).
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7.
  • Gustafsson, Henrik, et al. (författare)
  • Hope and athlete burnout : Stress and affect as mediators
  • 2013
  • Ingår i: Psychology of Sport And Exercise. - 1469-0292. ; 14:5, s. 640-649
  • Tidskriftsartikel (refereegranskat)abstract
    • ObjectiveIn this study we examined the relationship between trait hope and burnout in elite junior soccer players and whether stress and positive and negative affect mediated this relationship.MethodsParticipants were 238 Swedish soccer players (166 males, 71 females; one did not indicate gender) aged 15–19 years who completed questionnaires measuring trait hope, perceived stress, positive and negative affect, and athlete burnout (i.e., emotional/physical exhaustion, a reduced sense of accomplishment, and sport devaluation).ResultsBivariate correlations were consistent with hope theory contentions indicating significant negative relationships between hope and all three burnout dimensions. The relationship between hope and emotional/physical exhaustion was fully mediated by stress and positive affect. For sport devaluation and reduced sense of accomplishment, stress and positive affect partially mediated the relationship with hope. In contrast, negative affect did not mediate the relationship between hope and any of the burnout dimensions.ConclusionThe results support earlier findings that hope is negatively related to athlete burnout. Support was also found for the hypothesis that high hope individuals would experience less stress and therefore less burnout. Promoting hope may be relevant in reducing the likelihood of this detrimental syndrome.
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8.
  • Hemmingsson, E, et al. (författare)
  • Impact of social support intensity on walking in the severely obese  a randomized clinical trial
  • 2008
  • Ingår i: Obesity. - 1930-7381. ; 16:6, s. 1308-1313
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: There are few established methods for promoting physical activity (PA) in the severely obese. Because social support is a potential method for promoting PA, we compared mean steps/day during 18 weeks in severely obese outpatients receiving either standard support (SS) or added support (AS). METHODS AND PROCEDURES: Eighty severely obese outpatients from an obesity clinic were invited; 66 provided written consent, 55 were randomized, and 42 were included in final analyses (9 men, 33 women; age 44.4 +/- 13.1 years; BMI 41.9 +/- 5.5 kg/m(2)). All participants received a pedometer and a walking promotion booklet. In addition to SS, the AS group received ten 2-h group counseling sessions aimed at increasing weekly accumulated steps, every second week during the study. Each participant was asked to complete a 7-day walking diary every second week (10 observations). RESULTS: Baseline steps/day was 6,912 for the AS group and 5,311 for the SS group (P = 0.023). Data at 18 weeks showed that the AS group recorded 10,136 steps/day and the SS group 6,118 steps/day (P = 0.024). There was no allocation x time interaction (P = 0.46). During the follow-up period as a whole, the AS group recorded 1,794 more steps/day than the SS group (P = 0.0074). DISCUSSION: The AS group recorded more steps/day than the SS group, reaching a mean level of approximately 10,000 steps/day. However, the nonsignificant interaction between allocation x time suggests that this difference was present already at baseline and did not increase during follow-up.
9.
  • Hemmingsson, E, et al. (författare)
  • Is the association between physical activity and body mass index obesity dependent?
  • 2007
  • Ingår i: International Journal of Obesity. - 0307-0565. ; 31:4, s. 663-668
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Most studies indicate an inverse relationship between physical activity (PA) and body mass index (BMI). However, the impact of obesity on this relationship is unclear. OBJECTIVE: To scrutinize the BMI/PA relationship by analysing multiple categories of PA from a sample with a wide BMI range. DESIGN: PA was measured with accelerometry for 7 consecutive days during free-living conditions in 85 severely obese outpatients (mean BMI 42.7 kg/m(2) (s.d. 6.1); age 43.0 year (12.6)) and 193 control subjects (24.0 kg/m(2) (3.5); 41.6 year (13.0)). Six categories of PA were calculated from the accelerometer data (min/day of sedentary time, min/day of light PA, min/day of moderate PA, min/day of vigorous PA, activity counts/day and steps/day). Participants were stratified in obese and non-obese subgroups (BMI=30 kg/m(2) as cutoff). Associations between BMI and PA were examined in the total sample, and in subgroups. The impact of sex and age on the BMI/PA association was tested. RESULTS: In the total sample, the association between BMI and PA was significant in all PA categories except for time spent sedentary (P=0.68). However, in subgroup analyses, the association between BMI and PA in non-obese was only significant for activity counts/day (r=-0.16, P<0.05) and vigorous intensity PA (r=-0.15, P=0.05). After adjustment for age, vigorous PA remained significantly associated with BMI in the non-obese (r=-0.17, P<0.05). In obese individuals, significant associations between BMI and PA were found for all six PA categories (age adjusted), sedentary time (r=0.26, P=0.05), light PA (r=-0.30, P<0.01), moderate PA (r=-0.35, P<0.01), vigorous PA (r=-0.39, P<0.001), activity counts/day (r=-0.50, P<0.001) and steps/day (r=-0.54, P<0.001). CONCLUSION: The association between PA and BMI was weak in non-obese individuals. In contrast, BMI was highly significantly associated with PA in obese individuals. Longitudinal studies are needed to tease out the direction of association between PA and BMI across BMI categories, as the cross-sectional associations seem to be dependent on obesity status.
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10.
  • Larsson, Håkan, 1967-, et al. (författare)
  • Swedish physical education research
  • 2008
  • Ingår i: Physical Education and Sport Pedagogy. - Abingdon, Oxfordshire : Routledge. - 1740-8989. ; 13:4, s. 295-302
  • Tidskriftsartikel (refereegranskat)abstract
    • This article does not have an abstract.
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