Mechanical energy assessment of adult with Down syndrome during walking with obstacle avoidance

Salami, Firooz; Vimercati, Sara Laura; Rigoldi, Chiara; Taebi, Amirtahà; Albertini, G.; Galli, Manuela

doi:10.1016/j.ridd.2014.04.012

Cited by 10 publications

(12 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Horvat et al 25,48) showed that people with DS exhibit lower performance than healthy counterparts in terms of step length, step width, stride length, in the preferred walk condition, in the fast walk condition and during dual task conditions. Consistently, Salami et al found that young adults with DS had reduced gait velocity and step length, while energy recovery had no differences from healthy people to people with Down syndrome 13) . These features also apply to gait involving stepping over obstacles.…”

Section: Resultsmentioning

confidence: 80%

“…The main features of DS are delayed neuropsychomotor development, global muscle hypotonia and ligament laxity, that result in an average of two years for gait acquisition 8) and in compromised cognitive functions 6,9,10) . Motor abnormalities often lead to the development of abnormal postural control, resulting in instability and an impaired gait pattern, with an increased energy expenditure and reduced performance [11][12][13] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Gait and postural control patterns and rehabilitation in Down syndrome: a systematic review

Zago

Duarte

Grecco³

et al. 2020

J Phys Ther Sci

Self Cite

View full text Add to dashboard Cite

To describe (1) the current knowledge on gait and postural control in individuals with Down syndrome in terms of spatiotemporal, kinematics and kinetics, and (2) relevant rehabilitation strategies. [Methods] Randomized and non-randomized clinical trials published between January 1997 and October 2019 were selected by searching four scientific databases. We included studies on patients with Down syndrome involving gait analysis or postural control. A custom data-extraction and appraisal form was developed to collect the key features of each article. The PEDro Scale was used to evaluate the methodological quality of the studies. [Results] A total of 37 out of 146 cross-sectional and longitudinal studies were included in the review. The main abnormalities included: reduction of gait velocity and step length, poor static balance with increased anteroposterior and mediolateral oscillations and a larger step width. [Conclusion] A number of compensatory patterns during movement was observed, with a direct influence on improvements in stability and postural control throughout daily life. Intensive gait training at an early age appears to produce long-term improvements in this population. Future research should focus on the interaction between the motor and cognitive function, and on the functional effects due to the exposure to an enriched environment.

show abstract

Section: Resultsmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Gait and postural control patterns and rehabilitation in Down syndrome: a systematic review

Zago

Duarte

Grecco³

et al. 2020

J Phys Ther Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…Twelve studies had a case-control design [19][20][21][22][23][24][25][26][27][28][29][30], four were cross-sectional studies [31][32][33][34], two were cohort studies [35,36] and two were randomized controlled trials [37,38].…”

Section: Descriptive Information Of the Studies Includedmentioning

confidence: 99%

“…Twelve studies investigated syndrome-specific ID populations, of which five were Down syndrome (DS) [21][22][23][24][25]29], two were Prader -Willi syndrome (PWS) [27,35], one Cri du Chat syndrome (CDC) [19], one Fragile -X associated tremor/ataxia syndrome (FXAT+) [39], one Rett syndrome (RS) [36], one Rubinstein -Taybi syndrome (RTS) [20] and one Williams syndrome (WS) [24]. Three studies combined various etiologies such as Down syndrome with other unknown syndromes [37,38] or Down syndrome with autism spectrum disorder and pervasive developmental disorders [26].…”

Section: Descriptive Information Of the Studies Includedmentioning

confidence: 99%

Clinical usefulness and challenges of instrumented motion analysis in patients with intellectual disabilities

et al. 2019

View full text Add to dashboard Cite

Background: Clinical laboratory testing of locomotor disorders is challenging in patients with intellectual disability (ID). Nevertheless, also in this population gait analysis has substantial value as motor problems are common. To promote its use, adequate protocols need to be developed and the impact on clinical decision making needs to be documented.Research Question: What is the clinical usefulness of instrumented motion analysis in patients with ID?Method: This narrative review consists of three parts. A literature review was performed to describe the gait pattern of patients with ID. Next, benefits and challenges of standard gait analysis protocols are described. Finally, a case of a girl with ID due to genetic cause showing gait abnormalities is discussed. Results:The literature review resulted in 20 studies on "gait" in patients with an "ID", published since August, 1 st 2013. Gait deviations were observed in all studies investigating the ID population with an underlying genetic syndrome. Observed gait deviations in the ID population might be attributed to physical characteristics, cognitive components or both. The main goal of clinical gait assessment is the identification of gait deviations and the evaluation of their progress over time, in order to optimize the treatment plan. The choice of adequate method and measurement modalities depends on the clinical goal, the available resources and the abilities of the patient. In the case report we presented, we succeeded in performing an instrumented 3D gait analysis in a girl with severe ID at the ages of 4y4m, 6y0m, 7y2m and 8y2m. Progressive gait deviations were found suggesting a crouch gait pattern was developing. Results of the gait analysis led to the prescription of rigid ankle-foot orthoses.Significance: Gait analysis has substantial value for patients with ID. Gait analysis allows clinicians to objectify the relationship between physical characteristics and gait features.

show abstract

“…However, VCG vibrations have relatively low amplitudes that can be easily contaminated by environmental vibration, patient movements and respiration noise, which can lead to a misinterpretation of the VCG signal features. VCG as well as other biomedical signals such as heart sounds have nonlinear and non-stationary characteristics [15][16][17][18][19][20][21][22][23][24]. Hence linear methods may not be effective in analyzing these signals.…”

Section: Introductionmentioning

confidence: 99%

Noise Cancellation from Vibrocardiographic Signals Based on the Ensemble Empirical Mode Decomposition

TaebiA¹,

Ha²

2017

JABB

Self Cite

View full text Add to dashboard Cite

Vibrocardiographic (VCG) signals are the cardiac vibration measured at the chest surface. These signals can contain useful information for diagnosing cardiac conditions but are often contaminated by noise. Although band-pass and adaptive filters were used for noise removal from similar signals, the utility of ensemble empirical mode decomposition (EEMD) for filtering VCG was not previously investigated. In this study, an EEMD-based filter was proposed and tested. The filtering scheme first decomposed the VCG waveform into a set of intrinsic mode functions (IMF) then utilized the partial sum of IMFs to remove white noise that was added to simulated VCG signals. To measure the filter effectiveness, the normalized root-mean-square error (NRMSE) between the clean (i.e., before adding noise) and filtered signals was calculated for signal-to-noise ratios ranging from 1 to 20 dB. The EEMD-based filter performance was also compared with traditional methods such as Wiener filter. This comparison suggested that EEMDbased filter outperformed the Wiener filter in noise removal from simulated VCG. These results also suggested that EEMD may be utilized for white noise removal from actual VCG signals. Further investigations are warranted to study the relation between IMFs and different types of noise, which can enhance the effectiveness of EEMD-based filters in removing these noise types from actual VCG signals.

show abstract

Mechanical energy assessment of adult with Down syndrome during walking with obstacle avoidance

Cited by 10 publications

References 23 publications

Gait and postural control patterns and rehabilitation in Down syndrome: a systematic review

Gait and postural control patterns and rehabilitation in Down syndrome: a systematic review

Clinical usefulness and challenges of instrumented motion analysis in patients with intellectual disabilities

Noise Cancellation from Vibrocardiographic Signals Based on the Ensemble Empirical Mode Decomposition

Contact Info

Product

Resources

About