The use of continuous spectral analysis for the assessment of postural stability changes after sports-related concussion

Daniels, Katherine; Henderson, George; Strike, Siobhán; Cosgrave, Ciaran; Fuller, Colm; Falvey, Éanna

doi:10.1016/j.jbiomech.2019.109400

Cited by 7 publications

(4 citation statements)

References 79 publications

(101 reference statements)

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“…42 Another study showed significant differences only with the tandem stance component in concussed athletes at day 4 postinjury compared with preinjury. 70 Concussed adolescent athletes had significantly more sway/errors than controls an average of 11 days postinjury with complex tandem gait assessments and the ideal cut-point for total number of sway/errors for complex tandem gait was 5 (sensitivity 41%, specificity 90%). 42 The component of tandem gait with the greatest sensitivity was backward eyes closed (81%); the component with the greatest specificity was forward eyes open (99%).…”

Section: Paediatric-specificmentioning

confidence: 92%

Beyond acute concussion assessment to office management: a systematic review informing the development of a Sport Concussion Office Assessment Tool (SCOAT6) for adults and children

et al. 2023

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ObjectivesTo systematically review the scientific literature regarding the assessment of sport-related concussion (SRC) in the subacute phase (3–30 days) and provide recommendations for developing a Sport Concussion Office Assessment Tool (SCOAT6).Data sourcesMEDLINE, Embase, PsycINFO, Cochrane CENTRAL, CINAHL, SPORTDiscus and Web of Science searched from 2001 to 2022. Data extracted included study design, population, definition of SRC diagnosis, outcome measure(s) and results.Eligibility criteria(1) Original research, cohort studies, case–control studies, diagnostic accuracy and case series with samples >10; (2) SRC; (3) screening/technology that assessed SRC in the subacute period and (4) low risk of bias (ROB). ROB was performed using adapted Scottish Intercollegiate Guidelines Network criteria. Quality of evidence was evaluated using the Strength of Recommendation Taxonomy classification.ResultsOf 9913 studies screened, 127 met inclusion, assessing 12 overlapping domains. Results were summarised narratively. Studies of acceptable (81) or high (2) quality were used to inform the SCOAT6, finding sufficient evidence for including the assessment of autonomic function, dual gait, vestibular ocular motor screening (VOMS) and mental health screening.ConclusionCurrent SRC tools have limited utility beyond 72 hours. Incorporation of a multimodal clinical assessment in the subacute phase of SRC may include symptom evaluation, orthostatic hypotension screen, verbal neurocognitive tests, cervical spine evaluation, neurological screen, Modified Balance Error Scoring System, single/dual task tandem gait, modified VOMS and provocative exercise tests. Screens for sleep disturbance, anxiety and depression are recommended. Studies to evaluate the psychometric properties, clinical feasibility in different environments and time frames are needed.PROSPERO registration numberCRD42020154787.

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Section: Paediatric-specificmentioning

confidence: 92%

Beyond acute concussion assessment to office management: a systematic review informing the development of a Sport Concussion Office Assessment Tool (SCOAT6) for adults and children

et al. 2023

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“…Postural stability is maintained through the integration of sensory information provided by the visual, proprioceptive, and vestibular systems ( Loughlin and Redfern., 2001 ). Those systems have different time delays in their control pathways, enabling their relative afferent contributions to be studied by identifying characteristic COP frequency responses ( Daniels et al, 2019 ). The frequency spectral energy can be obtained by performing a fast Fourier transform, which enables the researcher to convert wave graphs of COP movement as represented by amplitude (power) and time into a relationship between amplitude (power) and frequency (spectrum); the power included for each frequency is defined as the frequency spectral energy ( Tanaka et al, 2020 ).…”

Section: Methodsmentioning

confidence: 99%

Characteristics of the postural stability of the lower limb in different visual states of undergraduate students with moderate myopia

2023

Front. Physiol.

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Objective: To explore the characteristics of lower limb postural stability in undergraduates with moderate myopia in three different visual states.Methods: Twenty male undergraduate students were recruited to complete respectively the static and dynamic postural stability tests under eyes-closed, myopia (taking off their glasses immediately) and corrected vision conditions. A three-dimensional force platform (Bertec, United States) was used to test static postural stability, which calculated the total path length of the Center of Pressure (COP), path length in the antero-posterior (A/P) and medio-lateral (M/L) directions, COP area, SampleEntropy (SampEn), and low-, medium-, and high-frequency spectrum energies. Dynamic postural stability was tested using the Y-balance test, and the Y-balance test scores were calculated. The Vicon three-dimensional motion capture system (Oxford, United Kingdom) measured the maximum flexion angles of the ankle, knee, and hip joints. The electromyography (EMG) root mean square (RMS) and integral EMG (iEMG) of the tibialis anterior and lateral gastrocnemius of the lower extremity were simultaneously measured using wireless surface electromyography (Noraxon, United States).Results: The SampEn-A/P and SampEn-M/L of corrected vision state higher than myopia and eyes-closed states, and myopia state larger than eyes-closed state (χ2 = 51.631, p < .001). The original and standard scores of the anterior, postero-medial and comprehensive values of the three visual states had significant differences (F = 32.125, p < .001). The original and standard values of postero-lateral corrected vision and myopia were larger than those of eyes-closed states (F = 37.972, p < .001). The maximum flexion angles of the ankle and knee joints were in the following order: corrected vision, myopia and eyes-closed (F = 10.93, p < .001). The iEMG and RMS had significant differences in the three different states (χ2 = 12.700, p < .001) in the all directions of YBT.Conclusion: Compared with corrected vision, the stability of static posture in the state of myopia was decreased, and the postural regularity was more regular. The dynamic postural stability in the state of myopia was also lower than that corrected vision, and the activation and work of ankle muscles were also increased.

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“…In this interpretation, the most important principal components (PCs) can be regarded as the dominant synergies of the complex motion, reducing the high dimensionality of the recorded data. Applied to joint angular time series, this provides a means to analyze the importance of individual joints to the whole of motion and to determine the magnitude and sign (i.e., phase) of the contribution of individual joints to the pattern (Cowley & Gates, 2017;Daniels et al, 2019;Noé et al, 2017).…”

mentioning

confidence: 99%

Assessment of Dynamic Balancing Performance of Synchronized Ice Skaters With Sudden Provocation Test via Principal Component Analysis

Pálya

Petró

Kiss

2022

Journal of Motor Learning and Development

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Background: Balancing performance can be affected by regular and high-level athletic training, which has not been fully explored in synchronized ice skaters. This study aimed to analyze the dynamic balancing performance by assessing the principal and compensatory movements performed during the sudden provocation tests and evaluating the parameters that characterize the platform’s motion. Method: Twelve young female synchronized ice skaters and 12 female age-matched controls participated. Sudden provocation tests were completed three times in bipedal stance and in single-leg stances, and sport-specific fatigue session was inserted between the repetitions. Results: Significantly more time was necessary to recover balance for both groups after the fatiguing sessions (p < .05). Interestingly, skaters performed less effectively in the simplest condition (bipedal stance) than the control group (p < .05). The principal component analysis showed that the first principal movement was the same for both groups. The skater group used the upper body and arms more often to compensate, while the control group’s recovery strategy consisted mainly of abduction of the elevated leg. The damping ratio and the relative variance of the first principal movement showed a negative correlation (p < .05), suggesting that those with superior balancing effectiveness recruited more compensatory movements.

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The use of continuous spectral analysis for the assessment of postural stability changes after sports-related concussion

Abstract: The use of continuous spectral analysis for the assessment of postural stability changes after sports-related concussion. Journal of Biomechanics, 97.

Cited by 7 publications

References 79 publications

Beyond acute concussion assessment to office management: a systematic review informing the development of a Sport Concussion Office Assessment Tool (SCOAT6) for adults and children

Beyond acute concussion assessment to office management: a systematic review informing the development of a Sport Concussion Office Assessment Tool (SCOAT6) for adults and children

Characteristics of the postural stability of the lower limb in different visual states of undergraduate students with moderate myopia

Assessment of Dynamic Balancing Performance of Synchronized Ice Skaters With Sudden Provocation Test via Principal Component Analysis

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