Effects of digital filtering on peak acceleration and force measurements for artistic gymnastics skills

Campbell, Rhiannon A; Bradshaw, Elizabeth; Ball, Nick; Hunter, Adam; Spratford, Wayne

doi:10.1080/02640414.2020.1757374

Cited by 14 publications

(14 citation statements)

References 20 publications

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“…Thus, the final extraction includes papers in the sports domain only. Of the 34 full-text papers included from the sports domain, 33 were peer-reviewed journal articles [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ], and one was a conference abstract [ 64 ]. The included papers are listed in Table 1 with the following information included: author(s), year of publication, type of sport, study design, study aims, main outcome measure, population, type(s) of wearable sensor technology and placement of sensor, additional technology for validation, and key findings.…”

Section: Resultsmentioning

confidence: 99%

“…For studies on running, seven studies used force plates or instrumented treadmills with force plates embedded [ 34 , 37 , 44 , 47 , 49 , 57 , 63 ], two used force plates and camera recordings [ 55 , 60 ] and three used camera recordings only [ 38 , 52 , 59 ]. For assessments of landing impacts, force plate data was reported in four studies [ 31 , 33 , 62 , 64 ], force plate and camera recordings were reported in one study [ 32 ] and camera recordings only were reported in one study [ 46 ]. The main reason for adding these measurement technologies was that the studies had a single intervention design, with validation of the data collected from the wearable sensor technologies as part of their main purpose.…”

Section: Discussionmentioning

confidence: 99%

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The Use of Wearable Sensor Technology to Detect Shock Impacts in Sports and Occupational Settings: A Scoping Review

Eitzen

Renberg

Færevik

2021

Sensors

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Shock impacts during activity may cause damage to the joints, muscles, bones, or inner organs. To define thresholds for tolerable impacts, there is a need for methods that can accurately monitor shock impacts in real-life settings. Therefore, the main aim of this scoping review was to present an overview of existing methods for assessments of shock impacts using wearable sensor technology within two domains: sports and occupational settings. Online databases were used to identify papers published in 2010–2020, from which we selected 34 papers that used wearable sensor technology to measure shock impacts. No studies were found on occupational settings. For the sports domain, accelerometry was the dominant type of wearable sensor technology utilized, interpreting peak acceleration as a proxy for impact. Of the included studies, 28 assessed foot strike in running, head impacts in invasion and team sports, or different forms of jump landings or plyometric movements. The included studies revealed a lack of consensus regarding sensor placement and interpretation of the results. Furthermore, the identified high proportion of validation studies support previous concerns that wearable sensors at present are inadequate as a stand-alone method for valid and accurate data on shock impacts in the field.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The Use of Wearable Sensor Technology to Detect Shock Impacts in Sports and Occupational Settings: A Scoping Review

Eitzen

Renberg

Færevik

2021

Sensors

View full text Add to dashboard Cite

show abstract

“…A previous study demonstrated that filters with very low cut-off frequencies (∼10 Hz) significantly reduces the peak of the signal, therefore underestimating the true loading that is occurring. 26 Additionally, other research conducted data collection on different matted surfaces which would also effect the peak acceleration results, as thicker matting (40 cm) decreases loading magnitude when compared to thinner matting (7 cm). 12 Few studies reported similar peak lower back accelerations for the backward handspring 14 and upper back accelerations for the backward somersault.…”

Section: Discussionmentioning

confidence: 99%

“…For the filtered IMU data, all signals were filtered using a fourth-order zero-lag Butterworth filter (85 Hz cut-off frequency). 26 Considering that gymnasts do not land a rotational gymnastics skill perfectly vertically upright, it is necessary to calculate the resultant acceleration to account for movement occurring in all planes. Therefore, both the filtered and raw accelerations were converted to resultant acceleration using the following equation: …”

Section: Methodsmentioning

confidence: 99%

Inertial measurement units are ‘all g’: Inter-trial reliability when assessing upper and lower body impact loading in artistic gymnastics

Campbell

Bradshaw

Ball

et al. 2020

International Journal of Sports Science & Coaching

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The magnitude of loading artistic gymnasts experience during training is currently unknown. Inertial measurement units (IMUs) could assess loading, although the reliability of these devices must be established prior to implementation into the training environment. This study aimed to determine inter-trial reliability of using IMeasureU Blue Thunder IMUs to assess upper and lower limb loading when performing foundation gymnastics skills. A secondary aim investigated the effect of raw and filtered acceleration signals on reliability results. Sixteen competitive level artistic gymnasts (male, n = 8; female, n = 8) performed seven gymnastics skills while wearing four IMUs (upper back, lower back, forearm and tibia). The peak resultant acceleration (PRA) during ground contact for all skills was exported from raw and filtered acceleration data (fourth-order zero-lag Butterworth filter with 85 Hz cut-off). Descriptive statistics (median and inter-quartile range), Friedman’s ANOVA, intra-class correlations, coefficient of variation, mean difference and Cohen’s effect sizes were calculated. Overall, the IMU PRA measures showed very good inter-trial reliability, however filtered signals improved reliability statistics for five variables compared to raw. The forearm- and tibia-mounted IMUs demonstrated improved reliability (very good reliability) compared to back positions (good reliability). IMUs are considered reliable devices to measure upper and lower limb loading in gymnastics.

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“…For video art, the intervention of digital technology and even artificial intelligence technology has brought unprecedented opportunities for its creation and dissemination, not only making the language of creation, expression, and existence of video more rich and varied but also making its dissemination more extensive and fast [4]. More importantly, as the basic information and medium of the information age, images have penetrated into every aspect of work and life and are the new media art form that is most closely connected with people's daily life and enjoyable to watch [5]. Nowadays, digital images or digital video artworks are everywhere in our lives, such as WeChat, Weibo, online shopping, and online games in the virtual world and various exhibitions and public spaces in real space.…”

Section: Introductionmentioning

confidence: 99%

Artistic Digital Display and Analysis of Interactive Media Wireless Sensor Clusters

Gao

2021

Journal of Sensors

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For video art, the coupling of digital technology and postmodernist thinking has brought not only technical progress and formal transformation but also a new mode of thinking and way of living around visual experience and even a change in the whole world view. The digitalization of the image not only lies in the change of the surface form, but also it has evolved into a supermedium, connecting the real world and the virtual world, becoming a new way and means for us to grasp the world, which can be considered a huge transformation. However, while digitalization has brought great development to video art, it has also confused many issues that need to be further explored, especially the inevitable transformation in creation. This paper takes digital video art as the main object of study and explores the crisis of representation and the problem of transformation that has arisen in it, with reference to “technology,” “form,” “concept,” and even “social and cultural life.” We also analyze, summarize, and conclude the transformation of video art and its creation rules in the digital context and propose corresponding creation strategies, taking “technology,” “form,” “concept,” and even “social and cultural life“ as the starting point. For the detection of a small area, a star structure can be used to achieve a flexible arrangement of each sensor while satisfying the real-time performance. For the collection of information in a large monitoring area, if a star structure is used, the nodes are overloaded with low reliability and low utilization of communication lines. The wireless data acquisition system uses the relatively scalable UCB telosb hardware platform, while the hardware platform uses an operating system with good portability, which can give full play to the hardware performance of the platform and effectively reduce the power consumption of the system. Based on the current art trend, this paper discusses the transformation of video art in the digital background from the perspective of “technology” and “concept” and proposes corresponding creation strategies to provide theoretical to practical support for digital video art creation practice and bring some inspiration to creators. It will also bring some inspiration to the creators. Cluster analysis is used to effectively improve the introduced algorithm, and the simulation results show that the improved algorithm can reasonably plan each sensor node in the region while reducing the number of sensors, so that the effectiveness of each sensor node can be well utilized.

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Effects of digital filtering on peak acceleration and force measurements for artistic gymnastics skills

Cited by 14 publications

References 20 publications

The Use of Wearable Sensor Technology to Detect Shock Impacts in Sports and Occupational Settings: A Scoping Review

The Use of Wearable Sensor Technology to Detect Shock Impacts in Sports and Occupational Settings: A Scoping Review

Inertial measurement units are ‘all g’: Inter-trial reliability when assessing upper and lower body impact loading in artistic gymnastics

Artistic Digital Display and Analysis of Interactive Media Wireless Sensor Clusters

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