@inproceedings{dumphart_validity_2021, address = {Virtual Meeting}, title = {Validity and reliability of a mobile insole to measure vertical ground reaction force during walking}, author = {Dumphart, Bernhard and Schimakno, Markus and Nöstlinger, Stefan and Iber, Michael and Horsak, Brian and Heller, Mario}, year = {2021}, note = {Projekt: DHLab Project: SONIGAIT II}, keywords = {Biofeedback, Biomechanics, Center for Digital Health Innovation, Center for Digital Health and Social Innovation, Department Gesundheit, Gait Analysis, Institut für Creative Media Technologies, Institut für Gesundheitswissenschaften, Publikationstyp Präsentation, SP CDHSI Motor Rehabilitation, SP IGW Clinical \& Healthcare Research, Vortrag, Wiss. Beitrag, best, peer-reviewed, ⛔ No DOI found}, } @inproceedings{horsak_muscle_2014, address = {Rome, Italy}, title = {Muscle {Co}-contraction {Around} the {Knee} is {Increased} {When} {Walking} {With} an {Unstable} {Shoe} {Construction}}, booktitle = {Book of {Proceedings} of the {XX} {Congress} of the {International} {Society} of {Electrophysiology} and {Kinesiology}}, author = {Horsak, Brian and Heller, Mario and Baca, Arnold}, year = {2014}, keywords = {Biomechanics, Department Gesundheit und Soziales, Forschungsgruppe Digital Technologies, Gait Analysis, Institut für Gesundheitswissenschaften, Publikationstyp Präsentation, Publikationstyp Schriftpublikation, Publikationstyp Vortrag, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, Wiss. Beitrag, peer-reviewed, ⛔ No DOI found}, } @article{horsak_muscle_2015, title = {Muscle co-contraction around the knee when walking with unstable shoes}, issn = {1873-5711}, doi = {10/f6xvzs}, abstract = {Walking with unstable shoes has been discussed to decrease joint loading. Typical estimates of joint loading using an inverse dynamic approach only account for net joint moments, not considering the potential role of muscular co-contraction. Therefore, the purpose of this study was to compare muscular co-contraction levels when walking with two different unstable shoe constructions (rocker-bottom and toning shoes) compared to walking with regular shoes. For each shoe condition, 12 healthy subjects walked with both, a regular shoe and with an unstable shoe at self-selected walking speed at a 10-m walkway. Surface EMG data of selected muscles were recorded and time normalized for calculating co-contraction indices (CCI) for opposing muscle groups. Results showed an increase of co-contraction primarily for vastii and gastrocnemius muscles for the first and second half of stance when walking with an unstable shoe construction. Therefore, when using an inverse dynamic approach to analyze joint loading differences between regular shoes and unstable shoes, one should be cautious in interpreting the data, as these methods base their estimates of joint moments upon the net joint torque.}, language = {ENG}, number = {25}, journal = {Journal of Electromyography and Kinesiology: Official Journal of the International Society of Electrophysiological Kinesiology}, author = {Horsak, Brian and Heller, Mario and Baca, Arnold}, year = {2015}, pmid = {25156445}, note = {Projekt: DHLab}, keywords = {Biomechanics, Center for Digital Health Innovation, DHLab, Department Gesundheit und Soziales, Forschungsgruppe Digital Technologies, Gait Analysis, Institut für Gesundheitswissenschaften, Publikationstyp Schriftpublikation, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, Wiss. Beitrag, best, best-bhorsak, best-lbheller, peer-reviewed}, pages = {175--181}, } @inproceedings{horsak_akustischer_2010, address = {Berlin, Deutschland}, title = {Ein akustischer {Ansatz} zur {Bestimmung} der {Durchführungsqualität} von {Bogenschüssen}}, booktitle = {Fortschritte der {Akustik}}, author = {Horsak, Brian and Heller, Mario and Reuter, Christoph}, year = {2010}, note = {Projekt: CARMA}, keywords = {Department Gesundheit und Soziales, Forschungsgruppe Digital Technologies, Gait Analysis, Institut für Gesundheitswissenschaften, Publikationstyp Präsentation, Publikationstyp Schriftpublikation, Publikationstyp Vortrag, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, Wiss. Beitrag, peer-reviewed, ⛔ No DOI found}, pages = {487--488}, } @article{ogris_accuracy_2012, title = {Accuracy of the {LPM} tracking system considering dynamic position changes}, issn = {0264-0414}, url = {http://www.tandfonline.com/doi/abs/10.1080/02640414.2012.712712}, doi = {10/gh378r}, abstract = {Abstract This study investigates the accuracy of the tracking system LPM (Local Position Measurement). The goal was to determine detailed error values of the system in the context of sports performance analyses. Six moderately trained male soccer players (amateur level) performed 276 runs on three different courses at six different speeds. Additionally, ten small-sided game plays were carried out. All runs and game plays were recorded with the LPM tracking system and the motion capture system VICON simultaneously. VICON served as the reference system. The absolute error of all LPM position estimations was on average 23.4±20.7 cm. The estimation for average velocities varied between 0.01 km h−1 and 0.23 km h−1, the maximum speed estimations differed by up to 2.71 km h−1. In addition, the results showed that the accuracy of the LPM system is highly dependent on the instantaneous dynamics of the player and decreases in the margins of the observation field. These dependencies were quantified. Considering commonly used applications of position tracking systems in sports (Leser, Ogris, \& Baca, 2011), the accuracy of LPM is acceptable for position and velocity estimations. The system provides valuable results for average velocities but seems to be far less reliable when dealing with high dynamic movements and measuring instantaneous velocities.}, urldate = {2012-08-21}, journal = {Journal of Sports Sciences}, author = {Ogris, Georg and Leser, Roland and Horsak, Brian and Kornfeind, Philipp and Heller, Mario and Baca, Arnold}, year = {2012}, note = {Projekt: DHLab}, keywords = {Center for Digital Health Innovation, DHLab, Department Gesundheit und Soziales, Forschungsgruppe Digital Technologies, Gait Analysis, Institut für Gesundheitswissenschaften, Publikationstyp Schriftpublikation, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, Wiss. Beitrag, peer-reviewed}, pages = {1--9}, } @article{horsak_three-dimensional_2011, title = {A three-dimensional analysis of finger and bow string movements during the release in archery}, volume = {27}, doi = {10/gh378s}, number = {2}, journal = {Journal of Applied Biomechanics}, author = {Horsak, Brian and Heller, Mario}, year = {2011}, keywords = {Department Gesundheit und Soziales, Forschungsgruppe Digital Technologies, Gait Analysis, Institut für Gesundheitswissenschaften, Publikationstyp Schriftpublikation, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, Wiss. Beitrag, peer-reviewed}, pages = {151--160}, } @inproceedings{heller_digital_2018, address = {Dublin, Irland}, title = {A digital home-based physical training programme to improve balance and mobility performance among older adults}, language = {English}, author = {Heller, Mario and Stübler, Andreas and Sandner, Emanuel and Kropf, Johannes and Kumpf, Andreas and Oppenauer-Meerskraut, Claudia and Stamm, Tanja and Lampel, Kerstin}, year = {2018}, note = {Projekt: Train\&Win Projekt: CARMA}, keywords = {Center for Digital Health Innovation, Digital Healthcare, Forschungsgruppe Digital Technologies, Institut für Creative Media Technologies, Institut für Gesundheitswissenschaften, SP IGW Health Promotion \& Healthy Ageing, Studiengang Digital Healthcare, Studiengang Physiotherapie, Vortrag, Wiss. Beitrag, best-lbheller, peer-reviewed, ⛔ No DOI found}, } @inproceedings{heller_fitdaheim_2018, address = {München}, series = {Schriften der {Deutschen} {Vereinigung} für {Sportwissenschaft}}, title = {„{FitDaheim}“ - ein {IKT}-gestütztes, physio- und ergotherapiebasiertes {Trainingsprogramm} zur {Förderung} von {Bewegung} im {Alter}.}, volume = {274}, abstract = {Der Einsatz von Informations- und Kommunikationstechnologien (IKT) in gesundheitsbezo-genen Produkten, Dienstleistungen und Prozessen hat nicht zuletzt aufgrund neuer techno-logischer Entwicklungen wie dem mobilen Internet oder dem Internet der Dinge zu einer Vielzahl von Anwendungen für das gesamte Gesundheitswesen geführt. Neben klassischen Informationssystemen zur Speicherung und zum Austausch von Daten in stationären Ge-sundheitseinrichtungen wie z.B. Krankenhäusern oder Pflegeeinrichtungen findet insbeson-dere auf dem zweiten Gesundheitsmarkt eine dynamische Entwicklung von Digital-Health-Anwendungen statt, bei der Produkte und Dienstleistungen auf individuelle Bedürfnisse zu-geschnitten werden und somit ein souveräneres und aktiveres Gestalten des eigenen Ge-sundheitshandelns ermöglichen (Knöppler, Neiseke und Nölke, 2016). Das Ziel dieses Beitrages ist es, den Aufbau und die Funktionsweise eines IKT-gestützten Trainingsprogramms zur Förderung von Bewegung im Alter vorzustellen, welches Übungen aus der Physio- und Ergotherapie enthält und zu Hause vor dem eigenen Fernsehbildschirm durchgeführt werden kann. Rückmeldungen über die Qualität der Bewegungsausführungen ermöglichen dabei ein quasi-angeleitetes kontrolliertes Bewegungstraining.}, language = {Deutsch}, booktitle = {Sportinformatik {XII}}, publisher = {Feldhaus}, author = {Heller, Mario and Stübler, Andreas and Sandner, Emanuel and Kropf, Johannes and Kumpf, Andreas and Oppenauer-Meerskraut, Claudia and Stamm, Tanja and Lampel, Kerstin}, editor = {Link, Daniel and Hermann, Aljoscha and Lames, Martin and Senner, Veit}, year = {2018}, note = {Projekt: Train\&Win Projekt: CARMA}, keywords = {Center for Digital Health Innovation, Digital Healthcare, Forschungsgruppe Digital Technologies, Institut für Creative Media Technologies, Institut für Gesundheitswissenschaften, SP IGW Health Promotion \& Healthy Ageing, Vortrag, Wiss. Beitrag, best-lbheller, peer-reviewed, ⛔ No DOI found}, pages = {49--50}, } @inproceedings{kiselka_perception_2014, address = {Basel}, title = {Perception of muscular effort in multiple sclerosis during dynamic elbow extension muscle activity}, booktitle = {Congress {Program}}, publisher = {CongressMed}, author = {Kiselka, Anita and Retz, Irene and Greisenberger, Andrea and Heller, Mario}, year = {2014}, keywords = {Department Gesundheit und Soziales, Forschungsgruppe Digital Technologies, Institut für Gesundheitswissenschaften, Publikationstyp Präsentation, Publikationstyp Schriftpublikation, Publikationstyp Vortrag, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, best, peer-reviewed, ⛔ No DOI found}, } @article{kiselka_perception_2013, title = {Perception of muscular effort in multiple sclerosis.}, volume = {32}, doi = {10/gh377b}, abstract = {BACKGROUND: Resistance exercise is effective in improving muscle strength and preventing muscle weakness in multiple sclerosis (MS) patients. Control of resistance training intensity based on perceived muscular effort is applicable to healthy individuals, yet there is no evidence of its utility for MS patients. OBJECTIVE: To compare perception of muscular effort in MS patients to healthy controls. METHODS: Based on their perception of muscular effort, twenty-five MS patients and twenty-eight controls adjusted static elbow extension tasks according to five levels on the OMNI-Resistance Exercise Scale. Elbow extension strength and muscle activity were measured via load cell dynamometer and surface electromyography (EMG) and related to each participant's maximal voluntary contraction (MVC) strength and muscle activity. Two-way analysis of variance was used to evaluate statistical significance. RESULTS: There were no statistically significant differences between MS patients and healthy controls, they produced similar relative torque values (F1 = 0.196; p {\textgreater} 0.05) and extensor muscle activities (F(2,617) = 1.556; p {\textgreater} 0.05) across all effort levels. CONCLUSION: No differences were found in the perception of muscular effort in MS patients and the age-matched control group. Future studies should explore, whether rating of perceived exertion is an effective instrument to control resistance training intensity in MS patients}, number = {2}, journal = {NeuroRehabilitation}, author = {Kiselka, Anita and Greisberger, Andrea and Heller, Mario}, year = {2013}, keywords = {Forschungsgruppe Digital Technologies, Institut für Gesundheitswissenschaften, Publikationstyp Schriftpublikation, SP IGW Clinical \& Healthcare Research, Studiengang Physiotherapie, best, best-lbheller, peer-reviewed}, pages = {415--423}, } @article{heller_perception_2016, title = {Perception of {Muscular} {Effort} {During} {Dynamic} {Elbow} {Extension} in {Multiple} {Sclerosis}}, volume = {97}, issn = {1532-821X}, doi = {10/f785d4}, abstract = {OBJECTIVE: To investigate the perception of muscular effort in individuals with multiple sclerosis (MS) and healthy controls during dynamic contractions. DESIGN: Case-control study. SETTING: MS day care center. PARTICIPANTS: Individuals with MS (n=28) and controls (n=28) (N=56). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Perceived muscular effort during dynamic elbow extensions was rated at 9 different weight intensities (10\%-90\% of 1-repetition maximum) in a single-blind, randomized order using the OMNI-Resistance Exercise Scale. Muscle activity of the triceps brachii muscle (lateral head) was measured via surface electromyography and normalized to maximal voluntary excitation. RESULTS: According to OMNI-level ratings, significant main effects were found for the diagnostic condition (F=27.33, P{\textless}.001, η(2)=.11), indicating 0.7 (95\% confidence interval [CI], 0.3-1.1) lower mean OMNI-level ratings for MS, and for the intensity level (F=46.81, P{\textless}.001, η(2)=.46), showing increased OMNI-level ratings for increased intensity levels for both groups. Furthermore, significant main effects were found for the diagnostic condition (F=16.52, P{\textless}.001, η(2)=.07), indicating 7.1\% (95\% CI, -8.6 to 22.8) higher maximal voluntary excitation values for MS, and for the intensity level (F=33.09, P{\textless}.001, η(2)=.36), showing higher relative muscle activities for increasing intensity levels in both groups. CONCLUSIONS: Similar to controls, individuals with MS were able to differentiate between different intensities of weight during dynamic elbow extensions when provided in a single-blind, randomized order. Therefore, perceived muscular effort might be considered to control resistance training intensities in individuals with MS. However, training intensity for individuals with MS should be chosen at approximately 1 OMNI level lower than recommended, at least for dynamic elbow extension exercises.}, language = {eng}, number = {2}, journal = {Archives of Physical Medicine and Rehabilitation}, author = {Heller, Mario and Retzl, Irene and Kiselka, Anita and Greisberger, Andrea}, month = feb, year = {2016}, pmid = {26525526}, keywords = {Center for Digital Health Innovation, Forschungsgruppe Digital Technologies, Studiengang Physiotherapie, best, best-lbheller}, pages = {252--258}, } @inproceedings{oppenauer-meerskraut_i_2017, address = {Funchal, Madeira - Portugal}, title = {I {Don}’t like {Gaming}, {It} {Leads} to a {Pressure} to {Perform}: {Older} {Adults} {Refused} {Gaming} {Elements} in a {Digital} {Home}-based {Physical} {Training} {Programme} in {Two} {Qualitative} {Studies}}, isbn = {978-989-758-267-7}, booktitle = {Proceedings of the {International} {Conference} on {Computer}-{Human} {Interaction} {Research} and {Applications} ({CHIRA} 2017)}, publisher = {SCITEPRESS}, author = {Oppenauer-Meerskraut, Claudia and Kropf, Johannes and Bösendorfer, Anna and Gira, Matthias and Heller, Mario and Lampel, Kerstin and Kumpf, Andreas and Stamm, Tanja}, year = {2017}, note = {Projekt: Train\&Win}, keywords = {2017, Bewerbungsverfahren, Center for Digital Health Innovation, Department Gesundheit, Department Medien und Digitale Technologien, Digital Healthcare, Forschungsgruppe Digital Technologies, Institut für Creative Media Technologies, Institut für Gesundheitswissenschaften, Publikationstyp Schriftpublikation, SP IGW Health Promotion \& Healthy Ageing, Studiengang Digital Healthcare, Studiengang Physiotherapie, best-lbheller, peer-reviewed, project\_carma, project\_trainandwin}, pages = {178--184}, }