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- Dillon, C., et al.
(författare)
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A clear view: crowdsourcing conservation needs in historic houses using visitor-led photo surveys
- 2019
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Ingår i: Museum Management and Curatorship. - : Informa UK Limited. - 0964-7775 .- 1872-9185. ; 34:2, s. 144-165
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Tidskriftsartikel (refereegranskat)abstract
- In order to investigate visitor perceptions of dust, dirt and cleaning in historic houses, visitors were invited to be a 'researcher' for the day at an historic house and photograph what they felt to be a conservation need. This self-directed photo survey provided a useful communication tool between visitors, researchers, conservators and collection care staff. The method generated specific and actionable feedback about the focus of visitors' attention, their perception of risk in the historic environment and the impact of conservation plans on the visitor experience. Although the non-expert nature of visitors' observations was clear, there was new insight into what visitors find attractive, alarming or anomalous in a historic house environment. This accessible and inclusive method is potentially easily conducted by staff and volunteers involved in collections care. The results could be used to inform training, prioritisation, presentation and interpretation, as well as conservation.
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| 2. |
- Frandsen, Björn, 1988-, et al.
(författare)
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Hip and Trunk Muscle Electromyography Differences Between Bilateral and Unilateral Bodyweight Resistance Exercises
- 2015
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- IntroductionIn sports, force production and movement are predominantly generated in a unilateral weight-bearing stance. Therefore, unilateral resistance training may possibly elicit more sport-specific strength gains compared to traditional bilateral strength training. Hip- and trunk- muscles stabilize the pelvis and trunk to maintain proper technique and posture in resistance training and are thought to play a central role in sports performance as well as injury prevention. Hip- and trunk- muscle activity increases as the body weight balance change from a bilateral to a unilateral stance. Little research has examined the magnitude of change in muscle activation differences between bilateral and unilateral stance in lower body exercises.AimThe aim of this study was to examine the electromyographic (EMG) activity in hip and trunk muscles in three bodyweight exercises performed in a bilateral and a unilateral stance.Methods14 healthy, young adults participated in a single session, single-group, observational study. Manual muscle testing was used to attain a maximal voluntary isometric contraction (MVC) value for gluteus medius, gluteus maximus, rectus abdominis, and erector spinae. EMG measurements (4 channel ME6000, MegaWin Software, Kuopio, Finland) were taken during performance of squat, bridge, and plank exercises in both a bilateral and a unilateral stance.ResultsIn all three exercises, EMG activity (presented as magnitude of change) was greater in the unilateral stance compared to the bilateral stance (p< 0.05), for the muscles gluteus medius (squat 478%, bridge 204%, plank 285%) and gluteus maximus (squat 371%, bridge 172%, plank 233%). In addition, in plank, EMG activity was greater in unilateral stance compared to the bilateral stance (p< 0.05) in rectus abdominis (120%) and erector spinae (127%). In the squat and bridge, no differences were identified in EMG activity for rectus abdominis and erector spinae between the bilateral and the unilateral stance.DiscussionNearly all unilateral exercises activated the hip muscles (gluteus medius, gluteus maximus) more than double compared to the same exercises performed bilaterally. In particular, gluteal muscle activity during the unilateral squat was more than 3.5 fold greater as compared to the bilateral stance. This greater magnitude of change in the unilateral squat might be explained by the single contact point with the ground in the squat, whereas the bridge and plank exercises include more ground contact points even in their unilateral stance. A unilateral training program including squat exercises might be beneficial for developing hip strength which is of great importance in sports performance.
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