Nina Schaffert | University of Hamburg (original) (raw)
Papers by Nina Schaffert
Proceedings of the 15th …, 2009
Monitoring sportive movements is essential for training processes to detect variations as well as... more Monitoring sportive movements is essential for training processes to detect variations as well as progression, stagnations or even regressions. Visualization plays the dominant role in the technique analysis, even though the eyes' ability to perceive information of time-...
Am Freitag, dem 8. Oktober 2010, versammelten sich rund 60 Wissenschaftler von insgesamt 18 Unive... more Am Freitag, dem 8. Oktober 2010, versammelten sich rund 60 Wissenschaftler von insgesamt 18 Universitäten und zwei niedersächsischen Industrieunternehmen in der niedersächsischen Landeshauptstadt zu dem eintägigen Workshop "Wahrnehmung und Bewegung" der dvs-Sektion Sportmotorik. Ausgerichtet wurde die Veranstaltung vom Organisationsteam des Instituts für Sportwissenschaft: Alfred O. Effenberg, Gerd Schmitz, Simone Lotz und Cornelia Schelinski an der Philosophischen Fakultät der Leibniz Universität Hannover.
Journal of Sports Sciences, 2015
Abstract Our article in the Journal of Sports Sciences was designed to examine effects of auditor... more Abstract Our article in the Journal of Sports Sciences was designed to examine effects of auditory feedback on mean boat speed during on-water training of visually impaired athletes in elite-standard Para-Rowing. This aim is stated explicitly in the title, abstract, introduction and discussion section. The effects were analysed on the basis of a conservative approach to using inferential statistics by emphasising measures that communicate meaningful differences and effect sizes to help interpret the data's practical importance for sport competition. Biomechanical measurements have been combined with standardised questionnaires to assess the athletes' perceived experience during rowing with acoustic feedback. An application for high-performance rowing has already been used to successfully investigate the effects of acoustic feedback on the time structure of the rowing cycle during the recovery phase. In this response, we provide our comments to the concerns presented in the 'Letter to the Editor' along with a brief description of the issues that relate to research in high-performance sport.
… Conference on Music …
The Second International Conference onMusic Communication Science, 3-4 December 2009, Sydney, Aus... more The Second International Conference onMusic Communication Science, 3-4 December 2009, Sydney, Australia http://marcs.uws.edu.au/links/ICoMusic09/index.html EXPLORING FUNCTION AND AESTHETICS IN ... Nina Schaffert & Klaus Mattes Stephen Barrass
interactive-sonification.org
This pilot study investigates six interactive sonifications of accelerometer data in the context ... more This pilot study investigates six interactive sonifications of accelerometer data in the context of outdoor sports activities. The designs investigate different techniques and theories of sonification. Through this study we also trial and develop mobile technologies for ...
Proceedings of the 6th Audio …, Jan 1, 2011
Abstract This paper describes a concept for providing acoustic feedback during on-water training ... more Abstract This paper describes a concept for providing acoustic feedback during on-water training to elite rowers and its implementation into the training process. The final aim was to improve the mean boat velocity by a reduction of intra-cyclic interruptions in the boat ...
Sportwissenschaft, Jan 1, 2011
Schaffert N, Mattes K, Effenberg AO. An investigation of online acoustic information for elite ro... more Schaffert N, Mattes K, Effenberg AO. An investigation of online acoustic information for elite rowers in onwater training conditions. . Presenting acoustic information has become increasingly interesting for technique training and control in various sports. In elite rowing, acoustic feedback is a new and promising application to optimize the boat's forward motion. This paper describes the potential of acoustic information which represents the movement-relevant information on the boat's forward motion for rowing and its implementation as online acoustic feedback during on-water training sessions. The first significant results were encouraging and support the intention to implement the acoustic information regularly into training processes for elite athletes.
Journal of Human Sport and Exercise, Jan 1, 2010
This article presents a new measuring and on water coaching device for rowing called "Accrow" whi... more This article presents a new measuring and on water coaching device for rowing called "Accrow" which measures the boat acceleration with an acceleration sensor (50 Hz) and boat velocity with GPS (4 Hz). The data were analysed with the special software "Regatta", based on scientific criteria and broad knowledge in biomechanical analysis of rowing training and races. In particular, "Regatta" performs three special analysis routines including every stroke: the boat motion for on-water training or tests, a race analysis over 2000m, 1000m or 500m to improve the race profile and an improvement of the rowing start. The device supports the rowing training and facilitates the answering of numerous trainings questions. Thus, Accrow is well suited for the analysis of water training sessions and rowing races for athletes and coaches as well as for scientific studies with interest in information regarding the boat acceleration, boat velocity, stroke rate and propulsion per stroke with high accuracy.
Auditory Display, Jan 1, 2009
Sound (acoustic information) is the naturally evocative, audible result of kinetic events. Humans... more Sound (acoustic information) is the naturally evocative, audible result of kinetic events. Humans interact with the world by the everyday experience of listening to perceive and interpret the environment. Elite athletes, especially, rely on sport specific sounds for feedback about successful (or unsuccessful) movements. Visualization plays the dominant role in technique analysis, but the limitations of visual observation (of time related events) compared with auditory perception, which represents information with a clearer time-resolution, mean that acoustic displays offer a promising alternative to visual displays. Sonification, as acoustic representation of information, offers an abundance of applications in elite sports for monitoring, observing movement and detecting changes therein. Appropriate sound is needed to represent specific movement patterns. This article presents conceptual considerations for a sound design to fulfill the specific purpose of movement optimization that would be acceptable to elite athletes, with first practical experience with elite athletes in rowing.
… with Auditory Displays …, Jan 1, 2010
Presenting information acoustically has become increasingly interesting for technique training an... more Presenting information acoustically has become increasingly interesting for technique training and control in elite sport. In rowing, acoustic feedback is a new and promising application to optimize the boat motion. By taking advantage of auditory perception, which is particularly sensitive to temporal resolution, the physics-based movements are mapped to acoustic parameters using Parameter Mapping Sonification (sonified) and was transmitted to the athletes as acoustic feedback in order to sensitize them to the time-dynamic structure of movements; assuming that this yields to an increased boat velocity. Listening to the sound of the boat motion enables athletes to detect small variations and deviations in movement execution and improves effectiveness in interaction without distracting the athletes' focus of attention. Indications for the existence of an "action-listening"-mechanism [1] in humans support the assumption that movement execution and effectiveness in interaction are improved which is perceived as a side-effect. This paper describes a potential version of acoustic information which represents the movement-relevant information of the boat motion for rowing and its implementation as a real-time acoustic feedback for elite rowers during on-water training sessions. The first significant results were encouraging and support the intention to implement the acoustic information regularly into training processes for elite athletes.
… with Auditory Displays …, Jan 1, 2010
This pilot study investigates six interactive sonifications of accelerometer data in the context ... more This pilot study investigates six interactive sonifications of accelerometer data in the context of outdoor sports activities. The designs investigate different techniques and theories of sonification. Through this study we also trial and develop mobile technologies for interactive sonification, and a 'technology probe' methodology for research in outdoor sporting situations. The sonifications were synthesised in realtime on an Apple iPod touch from the onboard accelerometers. The selections between sonifications were automatically recorded on the device during usage in trial sessions. Participants were not given any specific tasks and used it in activities that included walking, jogging, martial arts, yoga and dance moves. The participants were interviewed about the experience to find out how they could imagine using it, their suggestions for improvements, and their preferences for different designs. The general preference for the musical and the sinusoidal sonifications agrees with the data about selections collected by the probe. However the interviews also indicate that two of the most preferred designs are also among the least preferred. The results provide inspiration and guidance for the design of further interactive sonifications for sports, health and fitness activities.
R. Dale, BD, and SCJ, …, Jan 1, 2009
The potential for real-time sonifications to enhance attention for specific movement sections in ... more The potential for real-time sonifications to enhance attention for specific movement sections in athletics has led to a growing interest from the elite sports community. Early examples of sonifications for swimming and (ergometer) rowing have demonstrated the functionality of this idea. These pioneering sport sonifications use simple sine-tones to achieve real-time responsiveness. However further improvements in technology will enable more complex sounds to be synthesised, opening up the design possibilities. During the COST-SID workshop on sonification, different design possibilities were explored using the rowing movement and data as a case study. The results identify the potential to include the motivational and physiological aspects of music and the richness of natural sounds. In further related work the initial sine-wave sonification was trialed in action with rowers on the water with improvements in speed demonstrating the effectiveness. Responses to a questionnaire about the sound indicate that functionality is a primary dimension in the aesthetics of a sonification in elite sports. The results from the workshop combined with the questionnaire identify many issues and raise many questions about function and aesthetics in sonifications designed specifically for elite sports applications.
Proc. 15th Int. Conf. on Auditory …, Jan 1, 2009
Monitoring sportive movements is essential for training processes to detect variations as well as... more Monitoring sportive movements is essential for training processes to detect variations as well as progression, stagnations or even regressions. Visualization plays the dominant role in the technique analysis, even though the eyes' ability to perceive information of time-related events are limited and less efficient in comparison to the ears. Sound represents the information more differentiated and can support motion sequences. Acoustic displays offer a promising alternative to visual displays. Therefore an appropriate sound is needed that represents the specific movement patterns of a cyclic motion. In this paper we present our current considerations towards basic requirements for a sound design that fulfils the specific purposes of movement optimisation and its acceptance in elite sport. * Percentage descriptions must be interpreted in relation to the small number of tested subjects.
Proceedings of the 15th …, 2009
Monitoring sportive movements is essential for training processes to detect variations as well as... more Monitoring sportive movements is essential for training processes to detect variations as well as progression, stagnations or even regressions. Visualization plays the dominant role in the technique analysis, even though the eyes' ability to perceive information of time-...
Am Freitag, dem 8. Oktober 2010, versammelten sich rund 60 Wissenschaftler von insgesamt 18 Unive... more Am Freitag, dem 8. Oktober 2010, versammelten sich rund 60 Wissenschaftler von insgesamt 18 Universitäten und zwei niedersächsischen Industrieunternehmen in der niedersächsischen Landeshauptstadt zu dem eintägigen Workshop "Wahrnehmung und Bewegung" der dvs-Sektion Sportmotorik. Ausgerichtet wurde die Veranstaltung vom Organisationsteam des Instituts für Sportwissenschaft: Alfred O. Effenberg, Gerd Schmitz, Simone Lotz und Cornelia Schelinski an der Philosophischen Fakultät der Leibniz Universität Hannover.
Journal of Sports Sciences, 2015
Abstract Our article in the Journal of Sports Sciences was designed to examine effects of auditor... more Abstract Our article in the Journal of Sports Sciences was designed to examine effects of auditory feedback on mean boat speed during on-water training of visually impaired athletes in elite-standard Para-Rowing. This aim is stated explicitly in the title, abstract, introduction and discussion section. The effects were analysed on the basis of a conservative approach to using inferential statistics by emphasising measures that communicate meaningful differences and effect sizes to help interpret the data's practical importance for sport competition. Biomechanical measurements have been combined with standardised questionnaires to assess the athletes' perceived experience during rowing with acoustic feedback. An application for high-performance rowing has already been used to successfully investigate the effects of acoustic feedback on the time structure of the rowing cycle during the recovery phase. In this response, we provide our comments to the concerns presented in the 'Letter to the Editor' along with a brief description of the issues that relate to research in high-performance sport.
… Conference on Music …
The Second International Conference onMusic Communication Science, 3-4 December 2009, Sydney, Aus... more The Second International Conference onMusic Communication Science, 3-4 December 2009, Sydney, Australia http://marcs.uws.edu.au/links/ICoMusic09/index.html EXPLORING FUNCTION AND AESTHETICS IN ... Nina Schaffert & Klaus Mattes Stephen Barrass
interactive-sonification.org
This pilot study investigates six interactive sonifications of accelerometer data in the context ... more This pilot study investigates six interactive sonifications of accelerometer data in the context of outdoor sports activities. The designs investigate different techniques and theories of sonification. Through this study we also trial and develop mobile technologies for ...
Proceedings of the 6th Audio …, Jan 1, 2011
Abstract This paper describes a concept for providing acoustic feedback during on-water training ... more Abstract This paper describes a concept for providing acoustic feedback during on-water training to elite rowers and its implementation into the training process. The final aim was to improve the mean boat velocity by a reduction of intra-cyclic interruptions in the boat ...
Sportwissenschaft, Jan 1, 2011
Schaffert N, Mattes K, Effenberg AO. An investigation of online acoustic information for elite ro... more Schaffert N, Mattes K, Effenberg AO. An investigation of online acoustic information for elite rowers in onwater training conditions. . Presenting acoustic information has become increasingly interesting for technique training and control in various sports. In elite rowing, acoustic feedback is a new and promising application to optimize the boat's forward motion. This paper describes the potential of acoustic information which represents the movement-relevant information on the boat's forward motion for rowing and its implementation as online acoustic feedback during on-water training sessions. The first significant results were encouraging and support the intention to implement the acoustic information regularly into training processes for elite athletes.
Journal of Human Sport and Exercise, Jan 1, 2010
This article presents a new measuring and on water coaching device for rowing called "Accrow" whi... more This article presents a new measuring and on water coaching device for rowing called "Accrow" which measures the boat acceleration with an acceleration sensor (50 Hz) and boat velocity with GPS (4 Hz). The data were analysed with the special software "Regatta", based on scientific criteria and broad knowledge in biomechanical analysis of rowing training and races. In particular, "Regatta" performs three special analysis routines including every stroke: the boat motion for on-water training or tests, a race analysis over 2000m, 1000m or 500m to improve the race profile and an improvement of the rowing start. The device supports the rowing training and facilitates the answering of numerous trainings questions. Thus, Accrow is well suited for the analysis of water training sessions and rowing races for athletes and coaches as well as for scientific studies with interest in information regarding the boat acceleration, boat velocity, stroke rate and propulsion per stroke with high accuracy.
Auditory Display, Jan 1, 2009
Sound (acoustic information) is the naturally evocative, audible result of kinetic events. Humans... more Sound (acoustic information) is the naturally evocative, audible result of kinetic events. Humans interact with the world by the everyday experience of listening to perceive and interpret the environment. Elite athletes, especially, rely on sport specific sounds for feedback about successful (or unsuccessful) movements. Visualization plays the dominant role in technique analysis, but the limitations of visual observation (of time related events) compared with auditory perception, which represents information with a clearer time-resolution, mean that acoustic displays offer a promising alternative to visual displays. Sonification, as acoustic representation of information, offers an abundance of applications in elite sports for monitoring, observing movement and detecting changes therein. Appropriate sound is needed to represent specific movement patterns. This article presents conceptual considerations for a sound design to fulfill the specific purpose of movement optimization that would be acceptable to elite athletes, with first practical experience with elite athletes in rowing.
… with Auditory Displays …, Jan 1, 2010
Presenting information acoustically has become increasingly interesting for technique training an... more Presenting information acoustically has become increasingly interesting for technique training and control in elite sport. In rowing, acoustic feedback is a new and promising application to optimize the boat motion. By taking advantage of auditory perception, which is particularly sensitive to temporal resolution, the physics-based movements are mapped to acoustic parameters using Parameter Mapping Sonification (sonified) and was transmitted to the athletes as acoustic feedback in order to sensitize them to the time-dynamic structure of movements; assuming that this yields to an increased boat velocity. Listening to the sound of the boat motion enables athletes to detect small variations and deviations in movement execution and improves effectiveness in interaction without distracting the athletes' focus of attention. Indications for the existence of an "action-listening"-mechanism [1] in humans support the assumption that movement execution and effectiveness in interaction are improved which is perceived as a side-effect. This paper describes a potential version of acoustic information which represents the movement-relevant information of the boat motion for rowing and its implementation as a real-time acoustic feedback for elite rowers during on-water training sessions. The first significant results were encouraging and support the intention to implement the acoustic information regularly into training processes for elite athletes.
… with Auditory Displays …, Jan 1, 2010
This pilot study investigates six interactive sonifications of accelerometer data in the context ... more This pilot study investigates six interactive sonifications of accelerometer data in the context of outdoor sports activities. The designs investigate different techniques and theories of sonification. Through this study we also trial and develop mobile technologies for interactive sonification, and a 'technology probe' methodology for research in outdoor sporting situations. The sonifications were synthesised in realtime on an Apple iPod touch from the onboard accelerometers. The selections between sonifications were automatically recorded on the device during usage in trial sessions. Participants were not given any specific tasks and used it in activities that included walking, jogging, martial arts, yoga and dance moves. The participants were interviewed about the experience to find out how they could imagine using it, their suggestions for improvements, and their preferences for different designs. The general preference for the musical and the sinusoidal sonifications agrees with the data about selections collected by the probe. However the interviews also indicate that two of the most preferred designs are also among the least preferred. The results provide inspiration and guidance for the design of further interactive sonifications for sports, health and fitness activities.
R. Dale, BD, and SCJ, …, Jan 1, 2009
The potential for real-time sonifications to enhance attention for specific movement sections in ... more The potential for real-time sonifications to enhance attention for specific movement sections in athletics has led to a growing interest from the elite sports community. Early examples of sonifications for swimming and (ergometer) rowing have demonstrated the functionality of this idea. These pioneering sport sonifications use simple sine-tones to achieve real-time responsiveness. However further improvements in technology will enable more complex sounds to be synthesised, opening up the design possibilities. During the COST-SID workshop on sonification, different design possibilities were explored using the rowing movement and data as a case study. The results identify the potential to include the motivational and physiological aspects of music and the richness of natural sounds. In further related work the initial sine-wave sonification was trialed in action with rowers on the water with improvements in speed demonstrating the effectiveness. Responses to a questionnaire about the sound indicate that functionality is a primary dimension in the aesthetics of a sonification in elite sports. The results from the workshop combined with the questionnaire identify many issues and raise many questions about function and aesthetics in sonifications designed specifically for elite sports applications.
Proc. 15th Int. Conf. on Auditory …, Jan 1, 2009
Monitoring sportive movements is essential for training processes to detect variations as well as... more Monitoring sportive movements is essential for training processes to detect variations as well as progression, stagnations or even regressions. Visualization plays the dominant role in the technique analysis, even though the eyes' ability to perceive information of time-related events are limited and less efficient in comparison to the ears. Sound represents the information more differentiated and can support motion sequences. Acoustic displays offer a promising alternative to visual displays. Therefore an appropriate sound is needed that represents the specific movement patterns of a cyclic motion. In this paper we present our current considerations towards basic requirements for a sound design that fulfils the specific purposes of movement optimisation and its acceptance in elite sport. * Percentage descriptions must be interpreted in relation to the small number of tested subjects.