Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study
Introduction: The effect of rhythmic acoustic stimuli on body sway is of increasing interest due to their positive contribution when training or restoring the control of movement. Inertial sensors show promise as a portable, easier, and more affordable method compared to the force plate “gold standa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Karger Publishers
2021-03-01
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| Series: | Digital Biomarkers |
| Subjects: | |
| Online Access: | https://www.karger.com/Article/FullText/514325 |
| _version_ | 1818941725879566336 |
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| author | Analina Emmanouil Elissavet Rousanoglou Anastasia Georgaki Konstantinos Boudolos |
| author_facet | Analina Emmanouil Elissavet Rousanoglou Anastasia Georgaki Konstantinos Boudolos |
| author_sort | Analina Emmanouil |
| collection | DOAJ |
| description | Introduction: The effect of rhythmic acoustic stimuli on body sway is of increasing interest due to their positive contribution when training or restoring the control of movement. Inertial sensors show promise as a portable, easier, and more affordable method compared to the force plate “gold standard” concerning the evaluation of postural sway. This study examined the concurrent validity of inertially sensed measures of voluntary body sway against those obtained with a force plate, in silence and while exposed to a rhythmic acoustic stimulus. Methods: Temporal (sway duration and variability) and spatial (trajectory length, variability, range, velocity, and area) body sway variables were extracted using an inertial sensor (at L5) in synchronization with a force plate, during anteroposterior body sway in silence and while exposed to a rhythmic acoustic stimulus (n = 18 young women; two 70-s trials in each condition). Statistics included bivariate correlations between the inertially sensed and the force plate measures, separately, in silence and with a rhythmic acoustic stimulus, as well as for the effect of the rhythmic acoustic stimulus (percentage difference from silence) (p ≤ 0.05, SPSS v25.0). Results: The inertially sensed measures demonstrated good-to-excellent concurrent validity for all temporal and almost all spatial variables, both in silence and with rhythmic acoustic stimulus (r > 0.75, p = 0.000), as well as for the rhythmic acoustic-stimulus effect (r > 0.75, p ≤ 0.05). Conclusion: The inertially sensed measures of the voluntary anteroposterior body sway demonstrated an overall good-to-excellent concurrent validity against those obtained with the force plate “gold standard,” both in the silence and the rhythmic acoustic stimulus conditions, as well as for the rhythmic acoustic-stimulus effect. The findings of this pilot study allow the recommendation of inertial sensing for the evaluation of postural control alterations when exposed to rhythmic acoustic stimuli, a condition of increasing interest due to the positive contribution of such stimuli when training or restoring the control of movement. |
| first_indexed | 2024-12-20T07:00:06Z |
| format | Article |
| id | doaj.art-19f7c2f10b9b4c0c9510d0d5afc4cc85 |
| institution | Directory Open Access Journal |
| issn | 2504-110X |
| language | English |
| last_indexed | 2024-12-20T07:00:06Z |
| publishDate | 2021-03-01 |
| publisher | Karger Publishers |
| record_format | Article |
| series | Digital Biomarkers |
| spelling | doaj.art-19f7c2f10b9b4c0c9510d0d5afc4cc852022-12-21T19:49:14ZengKarger PublishersDigital Biomarkers2504-110X2021-03-0151657310.1159/000514325514325Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot StudyAnalina Emmanouil0Elissavet Rousanoglou1Anastasia Georgaki2Konstantinos Boudolos3Sports Biomechanics Lab, Department of Sport Medicine and Biology of Exercise, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, GreeceSports Biomechanics Lab, Department of Sport Medicine and Biology of Exercise, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, GreeceLaboratory of Music Acoustics and Technology, Department of Music Studies, National and Kapodistrian University of Athens, Athens, GreeceSports Biomechanics Lab, Department of Sport Medicine and Biology of Exercise, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, GreeceIntroduction: The effect of rhythmic acoustic stimuli on body sway is of increasing interest due to their positive contribution when training or restoring the control of movement. Inertial sensors show promise as a portable, easier, and more affordable method compared to the force plate “gold standard” concerning the evaluation of postural sway. This study examined the concurrent validity of inertially sensed measures of voluntary body sway against those obtained with a force plate, in silence and while exposed to a rhythmic acoustic stimulus. Methods: Temporal (sway duration and variability) and spatial (trajectory length, variability, range, velocity, and area) body sway variables were extracted using an inertial sensor (at L5) in synchronization with a force plate, during anteroposterior body sway in silence and while exposed to a rhythmic acoustic stimulus (n = 18 young women; two 70-s trials in each condition). Statistics included bivariate correlations between the inertially sensed and the force plate measures, separately, in silence and with a rhythmic acoustic stimulus, as well as for the effect of the rhythmic acoustic stimulus (percentage difference from silence) (p ≤ 0.05, SPSS v25.0). Results: The inertially sensed measures demonstrated good-to-excellent concurrent validity for all temporal and almost all spatial variables, both in silence and with rhythmic acoustic stimulus (r > 0.75, p = 0.000), as well as for the rhythmic acoustic-stimulus effect (r > 0.75, p ≤ 0.05). Conclusion: The inertially sensed measures of the voluntary anteroposterior body sway demonstrated an overall good-to-excellent concurrent validity against those obtained with the force plate “gold standard,” both in the silence and the rhythmic acoustic stimulus conditions, as well as for the rhythmic acoustic-stimulus effect. The findings of this pilot study allow the recommendation of inertial sensing for the evaluation of postural control alterations when exposed to rhythmic acoustic stimuli, a condition of increasing interest due to the positive contribution of such stimuli when training or restoring the control of movement.https://www.karger.com/Article/FullText/514325balanceforce platewearable sensorspostural controlmusic |
| spellingShingle | Analina Emmanouil Elissavet Rousanoglou Anastasia Georgaki Konstantinos Boudolos Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study Digital Biomarkers balance force plate wearable sensors postural control music |
| title | Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study |
| title_full | Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study |
| title_fullStr | Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study |
| title_full_unstemmed | Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study |
| title_short | Concurrent Validity of Inertially Sensed Measures during Voluntary Body Sway in Silence and while Exposed to a Rhythmic Acoustic Stimulus: A Pilot Study |
| title_sort | concurrent validity of inertially sensed measures during voluntary body sway in silence and while exposed to a rhythmic acoustic stimulus a pilot study |
| topic | balance force plate wearable sensors postural control music |
| url | https://www.karger.com/Article/FullText/514325 |
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