| 1. |
- Mårtensson, Fredrika, et al.
(författare)
-
The role of greenery for physical activity play at school grounds
- 2014
-
Ingår i: Urban Forestry & Urban Greening. - : Elsevier BV. - 1618-8667 .- 1610-8167. ; 13:1, s. 103-113
-
Tidskriftsartikel (refereegranskat)abstract
- Greenery is assumed to promote physical activity at school grounds by facilitating open and flexible play situations that engage many children. The role of greenery for school ground activity was investigated at two schools, one of which contained a substantial amount of greenery and the other one little greenery. All in all 197 children from 4th (10-11 years) and 6th grade (12-13 years), were involved in a one week field study, documenting self-reported school ground use, their favourite places and favourite activities and counting their steps by pedometer. The most common school ground activities were related to the use of balls as part of different sports, games and other playful activity. The more extensive green areas belonged to children's favourite places, but were little used, whereas settings with a mix of green and built elements in proximity to buildings were well-used favourites. Physical activity in steps was similar at the two schools, but on average girls got less of the activity they need during recess. Greenery was found important by contributing to settings attractive to visit for girls as well as boys and for younger as well as older children, if located in ways that also supported peer interaction and various games. (C) 2013 Elsevier G'mbH. All rights reserved.
|
|
| 2. |
- Pagels, Peter, 1964-, et al.
(författare)
-
Pupils' use of school outdoor play settings across seasons and its relation to sun exposure and physical activity
- 2020
-
Ingår i: Photodermatology Photoimmunology & Photomedicine. - : Wiley. - 0905-4383 .- 1600-0781. ; 36:5, s. 365-372
-
Tidskriftsartikel (refereegranskat)abstract
- Background Long outdoor stay may cause hazardous exposure to ultraviolet radiation (UVR) from the sun even at high latitudes as in Sweden (Spring to Autumn). On the other hand, long outdoor stay is a strong predictor of primary school children ' s free mobility involving moderate to vigorous physical activity (MVPA). UV-protective outdoor environments enable long outdoor stay. We investigated the concurrent impact of different school outdoor play settings upon pupils ' sun exposure and levels of physical activity across different ages, genders, and seasons. Method During 1 week each in September, March, and May, UVR exposure and MVPA were measured in pupils aged 7-11 years. Erythemally effective UVR exposure was measured by polysulphone film dosimeters and MVPA by accelerometers. Schoolyard play was recorded on maps, and used areas defined as four play settings (fixed play equipment, paved surfaces, sport fields, and green settings), categorized by season and gender. Results During the academic year, sport fields yielded the highest UVR exposures and generated most time in MVPA. In March, time outdoors and minutes in MVPA dropped and UVR exposures were suberythemal at all play settings. In May, green settings and fixed play equipment close to greenery promoted MVPA and protected from solar overexposure during long outdoor stays. Conclusion More outdoor activities in early spring are recommended. In May, greenery attractive for play could protect against overexposure to UVR and stimulate both girls and boys to vigorous play.
|
|
| 3. |
|
|
| 4. |
- Pagels, Peter, et al.
(författare)
-
A repeated measurement study investigating the impact of school outdoor environment upon physical activity across ages and seasons in Swedish second, fifth and eighth graders
- 2014
-
Ingår i: BMC Public Health. - : Springer Science and Business Media LLC. - 1471-2458. ; 14
-
Tidskriftsartikel (refereegranskat)abstract
- Background: School children are confined to and exposed to outdoor environment that happens to be at their disposal during compulsory school time. The health-promoting potential of outdoor environment, and the use of it, is therefore important. We have studied the impact of school outdoor environment in terms of playground features, space, topography and vegetation upon the patterns of moderate to vigorous physical activity (MVPA) across ages and seasons in Swedish pupils at compulsory school. Methods: Four schools in the Middle and Southern parts of Sweden, with outdoor environments differing in playground features, space, topography and vegetation were analyzed during one school year. A sample of 196 children was drawn from eligible pupils in grades 2, 5 and 8, aged 7-14 years. PA was monitored with time-stamped Actigraph accelerometers GT3X+, measuring different intensity levels during outdoor time. Maps were used to mark places where the children stayed and what they did during outdoor time. Results: Mean MVPA during outdoor stay was 39 minutes for the entire school year, time in MVPA correlated positively with outdoor time, as did MVPA with used outdoor play area (p < 0.001). Outdoor MVPA declined with age, boys accumulated more MVPA than girls at all ages (p < 0.001). Ball play areas increased MVPA in 5th graders in September and May (p < 0.001). Overall, ball play areas increased 5th graders' relative MVPA, and helped maintaining it with increasing age in boys but not in girls, whereas woodland stimulated and contributed to maintaining girls' MVPA with increasing age. Outdoor temperature significantly impacted (p < 0.01) MVPA throughout all seasons. Conclusion: We conclude that school outdoor environment design and outdoor play time impact physical activity on a daily basis and may contribute to increasing girls' physical activity and moderate the sharp decline in physical activity by age. The school outdoor environment may thus be a potential health promoter during school time.
|
|
| 5. |
- Raustorp, Anders, 1958, et al.
(författare)
-
Translation of children’s cycling into steps: the share of cycling in 10-year-olds’ physical activity
- 2013
-
Ingår i: International Journal of Adolescent Medicine and Health. - : Walter de Gruyter GmbH. - 2191-0278 .- 0334-0139. ; 25:2, s. 171-176
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Active travel has a potential to increase children ' s physical activity (PA). Pedometers offer a valid option to measure PA, but do not capture cycling activity. Children ' s self-reported cycling distances can be analyzed by the Geografic Information System (GIS). Aim: To combine pedometry and GIS mapping to identify the relative amount of cycling in children ' s PA. Study group: Of all children in 4th grade (n = 187) in Staffanstorp Sweden, 144 had valid pedometer data. Fifty-six children were non-cyclists while 88 children (32 boys, 47 girls, 9 gender unknown) reported at least one cycle journey. Methods: Cycle trips were entered into GIS and calculated to total cycling distance. Average length of the single distances cycled per day was 676 m (SD = 534 m). A previously reported cycling speed (13.5 km/h) was used to calculate time spent cycling. Consequently distance = 676 m, speed = 13.5 km/h = 13,500 m/3600 s = 3.75 m/s and time = 676m/3.75m/s = 180.26 s = 3 min. Expenditure of 4 and 5 metabolic equivalents (METs) has in children been reported equivalent to 122 and 127 steps/min, respectively. We estimated 4.7 METs (13.5 km/h) as 126 steps for every min of cycling (127 - 122 = 5 ×?0.7 = 125.5). Results: The daily mean cycle distance was 676 m, on average 379 additional steps/day for cycling children (min. 21, max. 1385, SD = 299) with no gender difference. Additional " steps " obtained by cycling corresponded to on average 3 % of their PA. Conclusion: The relative contribution of cycling in 10-yearold children ' s PA level is quite small and stable between children across different levels of activity levels, regardless of gender. © 2013 Walter de Gruyter GmbH.
|
|
| 6. |
- Sätter, Joanna K., et al.
(författare)
-
Biomechanical variables in Icelandic horse riders and the effect on tölt performance : A pilot study
- 2023
-
Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 18:6 June
-
Tidskriftsartikel (refereegranskat)abstract
- Aim To identify how riding rein direction (left and right) and rider asymmetry affect tölt performance in Icelandic horses. Methods Two horses were ridden in tölt by four riders on both left and right reins. Riders wore pressure insoles that measured the total absolute force (FAbs) and absolute force difference (FDiff) in their left and right feet in the stirrups. A 3D motion-analysis system recorded the degrees of side-to-side movement in the pelvis (RollP) and in the thoracolumbar region (RollT). Lateral advanced placement (LAP) and duty factor (DF) were calculated to determine tölt performance. One-way ANOVAs were used to assess the effect of rein direction on rider asymmetry variables (FAbs, FDiff, RollP and RollT) and tölt performance (LAP, DF) on a group level (n = 8). Within-subject Spearman rank correlations (ρ) were computed to determine the effect of rider asymmetry variables on tölt performance on an individual level. Results LAP was closer to 25% on the left rein compared to the right rein (mean difference: 1.8 ±1.2%; F(1,7) = 16.333; p = 0.005, η2p = 0.700). In addition, DF was lower on the left rein compared to the right rein (mean difference: 1.9±0.8%; F(1,7) = 41.299; p<0.001, η2p = 0.855). Individual relationships between RollT and LAP ranged from small negative to very large positive and reached significance for one rider (ρ = 0.730; p = 0.040). Individual relationships between RollP and DF ranged from very large negative to very large positive and reached significance for two riders (ρ = 0.731; p = 0.040; ρ = -0.723 p = 0.043). Conclusion Rein direction might influence tölt performance. Individual relationships between rider asymmetry and tölt performance were highly variable and reached significance in some instances, indicating that the relationship between rider asymmetry and tölt performance is highly individual. This type of biomechanical data can be used to provide valuable feedback to guide equestrians and coaches.
|
|
| 7. |
- Chorell, Elin, et al.
(författare)
-
Predictive Metabolomics Evaluation of Nutrition-Modulated Metabolic Stress Responses in Human Blood Serum During the Early Recovery Phase of Strenuous Physical Exercise
- 2009
-
Ingår i: Journal of Proteome Research. - Washington : American Chemical Society (ACS). - 1535-3893 .- 1535-3907. ; 8:6, s. 2966-2977
-
Tidskriftsartikel (refereegranskat)abstract
- We have investigated whether postexercise ingestion of carbohydrates in combination with proteins generates a different systemic metabolic response, as compared to the sole ingestion of carbohydrate or water, in the early recovery phase following exercise. In addition, metabolic patterns related to fitness level were studied together with individual responses to nutritional modulation. Twenty-four male subjects were exposed to 90 min of ergometer-cycling. Each participant was subject to four identical test-sessions, including ingestion of one of four beverages (water, low-carbohydrate beverage, high-carbohydrate beverage, and low-carbohydrate-protein beverage (LCHO-P)) immediately after cycling. Blood was collected at six time points, one pre- and five postexercise. Extracted blood serum was subject to metabolomic characterization by gas chromatography/time-of-flight mass spectrometry (GC-TOF MS). Data was processed using hierarchical multivariate curve resolution (HMCR), and multivariate statistical analysis was carried out using orthogonal partial least-squares (OPLS). Predictive metabolomics, including predictive HMCR and OPLS classification, was applied to ensure efficient sample processing and validation of detected metabolic patterns. Separation of subjects in relation to ingested beverage was detected and interpreted. Pseudouridine was suggested as a novel marker for pro-anabolic effect following LCHO-P ingestion, which was supported by the detected decrease of the catabolic marker 3-methylhistidine. Separation of subjects according to fitness level was achieved, and nutritional modulation by LCHO-P was shown to improve the metabolic status of less fit subjects in the recovery phase. In addition, the potential of the methodology for detection of early signs of insulin resistance was also demonstrated.
|
|
| 8. |
- Qviström, Mattias
(författare)
-
Competing geographies of recreational running: The case of the "jogging wave" in Sweden in the late 1970s
- 2017
-
Ingår i: Health and Place. - : Elsevier BV. - 1353-8292 .- 1873-2054. ; 46, s. 351-357
-
Tidskriftsartikel (refereegranskat)abstract
- Recreational running encompasses more than one type of exercise. Different running practices offer different, even opposing, conceptualisations of the role of the environment. As illustrated in this paper, historical studies can uncover and explain these variations. By studying the clash between two practices in Sweden in the 1970s - the newly translated idea of North American jogging and an already established tradition of fitness running - this paper qualifies the difference between them and illustrates how they assembled competing geographies. The paper argues that current planning would benefit from acknowledging this multiplicity because different forms of running offer complementary strategies for inclusivity.
|
|
| 9. |
- Egenvall, Agneta
(författare)
-
Comparison of rider stability in a flapless saddle versus a conventional saddle
- 2018
-
Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 13
-
Tidskriftsartikel (refereegranskat)abstract
- The purpose of a saddle is to improve the rider's safety, security, and comfort, while distributing the forces exerted by the rider and saddle over a large area of the horse's back without focal pressure points. This study investigates the effects on rider stability of an innovative saddle design that differs from a conventional saddle in having no flaps. Five horses were ridden by their regular rider in their usual saddle and in a flapless saddle. A pressure mat (60 Hz) placed between the saddle and the horse's back was used to determine the position of the center of pressure, which represents the centroid of pressure distribution on the horse's back. Data were recorded as five horses were ridden at collected and extended walk, trot and canter in a straight line. Data strings were split into strides with 5 strides analysed per horse/gait/type. For each stride the path of the rider's center of pressure was plotted, maximal and minimal values in the anteroposterior and mediolateral directions were extracted, and ranges of motion in anteroposterior and mediolateral directions were calculated. Differences between the conventional and flapless saddles were analysed using mixed models ANOVA. Speed and stride length of each gait did not differ between saddles. Compared with the conventional saddle, the flapless saddle was associated with significant reductions in range of motion of the rider's center of pressure in the mediolateral direction in all gaits and in the anteroposterior direction in collected trot, extended trot and extended canter. The improved stability was thought to result from the absence of saddle flaps allowing the rider's thighs to lie in more adducted positions, which facilitated the action of the lumbopelvic-hip musculature in stabilizing and controlling translations and rotations of the pelvis and trunk. The closer contact between rider and horse may also have augmented the transfer of haptic information.
|
|
| 10. |
- Eisersiö, Marie, et al.
(författare)
-
A snapshot of the training schedule for 8 professional riders riding dressage
- 2015
-
Ingår i: Comparative Exercise Physiology. - 1755-2540 .- 1755-2559. ; 11, s. 35-46
-
Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to document and categorise riding sessions, carried out by professional riders, by describing the riding sessions according to gait, ridden track, lateral movements, rider position in the saddle and rein length. These data were then analysed relative to horse and rider characteristics, e.g. educational level of horse and rider, time in training and laterality of the horse. Eight professional riders riding 3 familiar horses each participated in the study and the riders were asked to demonstrate their normal routine for flatwork/dressage with each horse. The whole training session was video recorded. Video recordings were scrutinised and data were categorised and analysed. Mixed models were used for the statistical analysis, including rider as random effect. The median length of the riding sessions were 31 min. The riders spent 38% of the riding session at the walk, 39% at the trot, 8% at left lead canter and 9% at the right lead canter. The riders devoted 28-29% of the riding session to riding straight, turning left and turning right and 8% to riding lateral movements. The ridden exercises performed and the duration of the exercises was to a large extent connected to the educational level of the horse and its time in training with the rider. More work at the canter and lateral movements at the trot were included for upper level horses compared to lower level horses. Horses in training for more than one year, compared to less than one year, were ridden for longer durations at the canter and shorter durations at the trot. The disposition of riding sessions needs further investigation. In particular, large scale epidemiological studies of orthopaedic injuries need to consider the daily riding sessions in detail.
|
|
