Design of an ergonomic gestural interface for professional road cycling

Maurizio Caon; Rico Süsse; Benoit Grelier; Omar Abou Khaled; Elena Mugellini

doi:10.3233/wor-203238

Design of an ergonomic gestural interface for professional road cycling

Work ◽

10.3233/wor-203238 ◽

2020 ◽

Vol 66 (4) ◽

pp. 933-944

Author(s):

Maurizio Caon ◽

Rico Süsse ◽

Benoit Grelier ◽

Omar Abou Khaled ◽

Elena Mugellini

Keyword(s):

Gestural Interfaces ◽

Road Cycling ◽

Gestural Interface

BACKGROUND: Connected bike computers can support professional cyclists in achieving better performances but interacting with them requires taking their hands off the handlebar compromising focus and safety. OBJECTIVE: This research aims at exploring the design of an ergonomic interface based on micro-gestures that can allow cyclists to interact with a device while holding the handlebar. METHODS: Three different studies were conducted with seven professional cyclists adopting the gesture-elicitation technique. One study aimed at eliciting free micro-gestures; a second to evaluate gestures recognizable with a smart glove; the last focused on the gestures recognized through an interactive armband. RESULTS: The analysis of the micro-gestures elicited during these studies allowed producing a first set of guidelines to design gestural interfaces for drop-bars (a specific type of handlebar for road bikes). These guidelines suggest which fingers to use and how to design their movement in order to provide an ergonomic interface. It also introduces the principle of symmetry for the attribution of symbols to symmetric referents. Finally, it provides suggestions on the design of the interactive drop-bar. CONCLUSIONS: The guidelines provided in this paper can support the design of gestural interfaces for professional cyclists that can enhance performance and increase safety.

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A Case Study of MasterMind Chess: Comparing Mouse/Keyboard Interaction with Kinect-Based Gestural Interface

Advances in Human-Computer Interaction ◽

10.1155/2016/4602471 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 6

Author(s):

Gabriel Alves Mendes Vasiljevic ◽

Leonardo Cunha de Miranda ◽

Erica Esteves Cunha de Miranda

Keyword(s):

Lessons Learned ◽

Control Mechanisms ◽

Skill Levels ◽

Board Games ◽

Gestural Interfaces ◽

Gestural Interaction ◽

Gestural Interface ◽

Chess Game ◽

New Type

As gestural interfaces emerged as a new type of user interface, their use has been vastly explored by the entertainment industry to better immerse the player in games. Despite being mainly used in dance and sports games, little use was made of gestural interaction in more slow-paced genres, such as board games. In this work, we present a Kinect-based gestural interface for an online and multiplayer chess game and describe a case study with users with different playing skill levels. Comparing the mouse/keyboard interaction with the gesture-based interaction, the results of the activity were synthesized into lessons learned regarding general usability and design of game control mechanisms. These results could be applied to slow-paced board games like chess. Our findings indicate that gestural interfaces may not be suitable for competitive chess matches, yet it can be fun to play while using them in casual matches.

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Challenges of Developing a Mobile Game for Children with Down Syndrome to Test Gestural Interface

Information ◽

10.3390/info11030159 ◽

2020 ◽

Vol 11 (3) ◽

pp. 159

Author(s):

Lizie Sancho Nascimento ◽

Nelson Zagalo ◽

Laura Bezerra Martins

Keyword(s):

Down Syndrome ◽

Intellectual Deficiency ◽

Game Development ◽

Mobile Game ◽

Children With Down Syndrome ◽

Development Framework ◽

Gestural Interfaces ◽

Gestural Interface ◽

Accessibility Guidelines ◽

Definition Of

After a literature review published by Nascimento et. al. (2017), the research team noticed the lack of studies focused on game controllers’ accessibility during use by children with Down syndrome. In view of that, this research describes a mobile game development and its usability analyses, which were created to evaluate the accessibility of touchscreen gestural interfaces. The methodology was organized into three steps: bibliographic research and the definition of the project guidelines, the game development, and its evaluation. The guidelines used were based on a study made by Nascimento et. al. (2019) of the impairments that children can have, their game preferences found on Prena’s article (2014), games accessibility guidelines for people with intellectual deficiency from the Includification Book (2012), a manual of touchscreen gestural interfaces from Android and iOS and a game development framework from Schuytema (2008). Then, for the usability analyses, the team decided to first submit the game to a group of experts in order to make some improvements before submitting it to the audience. In this way, two evaluations were done, a heuristic test with usability specialists and a cognitive walkthrough with health professionals. The list of heuristics used on the tests was created by a mash up of the Breyer evaluation (2008) and the recommendations of the Able Games Association (2012) and the cognitive one followed the Preece, Sharp and Rogers (2007) recommendations. The results found reveal some challenges in the field and adjustments, mainly in the narrative, game goals and interface feedback, that should be addressed as soon as possible.

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Body balance in a free-standing position in road and off-road cyclists

Baltic Journal of Health and Physical Activity ◽

10.2478/bjha-2014-0022 ◽

2014 ◽

Vol 6 (4) ◽

Cited By ~ 1

Author(s):

Paulina Hebisz ◽

Rafal Hebisz ◽

Marek Zaton

Keyword(s):

Sagittal Plane ◽

Standing Position ◽

The Body ◽

Free Standing ◽

Body Balance ◽

Eyes Closed ◽

Road Cycling ◽

Progressive Exercise ◽

Before And After ◽

Road Cyclists

AbstractBackground: The purpose of this study was to compare body balance in road and off-road cyclists, immediately before and after the racing season.Material/Methods: Twenty individuals participated in the study and they were divided into two groups: specialists in road-cycling (n = 10) and in off-road cycling (n = 10). Immediately before and after the five-month racing season stabilographic trials were carried out (at rest and after progressive exercise). In assessing body balance the distance and velocity of the centre shifts (in the anterior-posterior and left-right direction) were analysed. The tests were performed with the cyclists’ eyes open, eyes closed, and in feedback.Results: After the racing season, in the off-road cyclists’ group, distance and velocity of the centre of pressure shifts increased after a progressive exercise.Conclusions: In the off-road cyclists’ group the balance of the body in the sagittal plane deteriorated after the racing season. Moreover, after the racing season off-road cyclists were characterized by a worse balance of the body, compared to road cyclists

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Sprint Track Cyclists and Road Cycling Training

Korean Journal of Sports Science ◽

10.35159/kjss.2020.06.29.3.1129 ◽

2020 ◽

Vol 29 (3) ◽

pp. 1129-1137

Author(s):

Jae-Ho Park ◽

Hee-Jae Kim ◽

Sok Park

Keyword(s):

Road Cycling ◽

Cycling Training

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Beta-alanine did not improve high-intensity performance throughout simulated road cycling

European Journal of Sport Science ◽

10.1080/17461391.2021.1940304 ◽

2021 ◽

pp. 1-29

Author(s):

Pedro Perim ◽

Nathan Gobbi ◽

Breno Duarte ◽

Luana Farias de Oliveira ◽

Luiz Augusto Riani Costa ◽

...

Keyword(s):

High Intensity ◽

Beta Alanine ◽

Road Cycling

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Climbing Performance in U23 and Professional Cyclists during a Multi-stage Race

International Journal of Sports Medicine ◽

10.1055/a-1524-2656 ◽

2021 ◽

Author(s):

Peter Leo ◽

James Spragg ◽

Dieter Simon ◽

Justin Lawley ◽

Iñigo Mujika

Keyword(s):

Power Output ◽

Performance Metrics ◽

Study Data ◽

Intensity Measures ◽

Multi Stage ◽

Road Cycling ◽

Ascent Velocity ◽

Race Performance

AbstractThe aim of this study was to analyze climbing performance across two editions of a professional multistage race, and assess the influence of climb category, prior workload, and intensity measures on climbing performance in U23 and professional cyclists. Nine U23 cyclists (age 20.8±0.9 years) and 8 professional cyclists (28.1±3.2 years) participated in this study. Data were divided into four types: overall race performance, climb category, climbing performance metrics (power output, ascent velocity, speed), and workload and intensity measures. Differences in performance metrics and workload and intensity measures between groups were investigated. Power output, ascent velocity, speed were higher in professionals than U23 cyclists for Cat 1 and Cat 2 (p≤0.001–0.016). Workload and intensity measures (Worktotal, Worktotal∙km-1, Elevationgain, eTRIMP and eTRIMP∙km-1) were higher in U23 compared to professionals (p=0.002–0.014). Climbing performance metrics were significantly predicted by prior workload and intensity measures for Cat 1 and 2 (R2=0.27–0.89, p≤0.001–0.030) but not Cat 3. These findings reveal that climbing performance in professional road cycling is influenced by climb categorization as well as prior workload and intensity measures. Combined, these findings suggest that Cat 1 and 2 climbing performance could be predicted from workload and intensity measures.

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Video Content Manipulation by Means of Content Annotation and Nonsymbolic Gestural Interfaces

Lecture Notes in Computer Science - Knowledge-Based Intelligent Information and Engineering Systems ◽

10.1007/978-3-540-30132-5_56 ◽

2004 ◽

pp. 385-392

Author(s):

Burin Anuchitkittikul ◽

Masashi Okamoto ◽

Sadao Kurohashi ◽

Toyoaki Nishida ◽

Yoichi Sato

Keyword(s):

Video Content ◽

Gestural Interfaces ◽

Content Annotation

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Characterisation of cyclists’ willingness to pay for green initiatives at Africa’s largest cycle tour

South African Journal of Economic and Management Sciences ◽

10.4102/sajems.v19i3.1305 ◽

2016 ◽

Vol 19 (3) ◽

pp. 432-439

Author(s):

Melville Saayman ◽

Waldo Krugell ◽

Andrea Saayman

Keyword(s):

Willingness To Pay ◽

Carbon Footprint ◽

Climate Change Mitigation ◽

Demographic Variables ◽

The Road ◽

Road Cycling ◽

Different Types ◽

On The Road ◽

The Right ◽

Change Mitigation

The Cape Argus Pick n Pay Cycle Tour is a major event on the road cycling calendar. The majority of cyclists travel significant distances and participation produces a substantial carbon footprint. This paper examines participants’ willingness to pay to offset their carbon footprint. The purpose of this paper is to make a contribution to the literature by linking willingness to pay to attitudes towards or beliefs (green views) about the initiatives in place, to ensure a greener cycle tour. Factor analysis is used to identify different types of cyclists, based on their green views: those with green money, those who prefer green products and the “re-cyclers”. The results of the regression analysis reveal that socio-demographic variables and the right attitude towards the environment are significant predictors of stated willingness to pay for climate change mitigation.

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