Variability and coordination patterns of walking with different speeds in active and non-active children with Down syndrome: A cross-sectional case-control study

Noghondar, Narges Vali; Kakhki, Alireza Saberi; Sohrabi, Mehdi; Noghondar, Fatemeh Alirezaei

doi:10.1080/20473869.2021.1893923

Cited by 3 publications

(3 citation statements)

References 41 publications

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“…Additionally, bimanual manipulation is an important achievement for refining consistent hand preference in children (Nelson, 2022). Past studies have shown that children with DS have difficulties with bilateral coordination compared to neurotypical children as assessed using standardized motor tests and motor tasks such as walking (Jobling, 1998; Nocera et al, 2021; Vali Noghondar et al, 2022). However, there is limited information on the development and origins of bimanual coordination in the DS population.…”

Section: Discussionmentioning

confidence: 99%

Performance during object retrieval tasks in young children with and without Down syndrome: A pilot study

Kaur,

Needham

2023

Infant and Child Development

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Object retrieval skills requiring means‐end exploration are an area of relative weakness in young children with Down syndrome (DS). The current pilot study examined the object retrieval skills of a small sample of young children with DS for tasks with varying level of complexity. Thirteen children with DS (31.55 ± 4.14 months) and 13 mental age‐matched typically developing (TD) children (17.31 ± 1.64 months) completed three tasks involving retrieving a toy from a transparent box (Task 1), an opaque box (Task 2) and a transparent box hidden inside an opaque box (Task 3). Both DS and TD group performed similarly for the simpler Task 1, but for Tasks 2 and 3, the DS group had a lower success rate, less frequent use of complex asymmetric hand actions and/or longer execution times compared to the TD group. Future studies should examine the developmental trends and specificity of means‐end exploratory behaviours in children with DS.

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Section: Discussionmentioning

confidence: 99%

Performance during object retrieval tasks in young children with and without Down syndrome: A pilot study

Kaur,

Needham

2023

Infant and Child Development

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“…Additionally, bimanual manipulation is an important achievement for refining consistent hand preference in children (Nelson, 2022). Children with DS have poor bilateral coordination compared to neurotypical children as assessed using standardized motor tests and motor tasks such as walking (Vali Noghondar et al, 2022;Nocera et al, 2021;Jobling, 1998). However, there is limited information on the development and origins of bimanual coordination in infants and young children with Down Syndrome.…”

Section: Discussionmentioning

confidence: 99%

Performance During Object Retrieval Tasks in Young Children with and without Down Syndrome

Kaur

Needham

2023

Preprint

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Object retrieval skills requiring means-end exploration are delayed or impaired in infants with Down Syndrome (DS). The current study examined the role of ecological constraints, i.e., task difficulty and environmental context on the object retrieval skills of young children with DS. Thirteen children with DS (31.55 ± 4.14 months) and 13 mental-age matched Typically Developing (TD) children (17.31 ± 1.64 months) completed three tasks involving retrieving a toy from a transparent box (task 1), an opaque box (task 2), and a transparent box hidden inside an opaque box (task 3). Both DS and TD group performed similarly for the simpler task 1; but for task 2 and task 3, the DS group had less success rate, fewer use of complex asymmetric hand actions, and/or longer planning and execution times compared to TD group. Future studies should examine the developmental trends and specificity of means-ends exploratory behaviors in children with DS.

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“…Such sensorimotor impairments are produced by a combination of ligament laxity, general muscle hypotonia, and altered cognitive function [2][3][4][5]. Motor abnormalities often lead to abnormal postural control, resulting in instability, poor gait function, and higher energy costs of locomotion [5][6][7][8][9][10]. Patients with DS exhibit a gait phenotype characterized by 'slowness and clumsiness', namely a low walking speed, large step width, balance deficits, and altered kinematics, often accompanied by joint instability: excessive pelvic tilt; hip adduction and knee flexion; external rotation of the hip, tibia, and foot; and limited mobility of the hip and knee [9,11,12].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Intersection of Ground Reaction Forces during Overground Walking in Down Syndrome: Effects of the Pathology and Left–Right Asymmetry

et al. 2023

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Motor dysfunctions in patients with Down Syndrome (DS) result in poor locomotion and an altered gait phenotype, characterized by compromised stability management and frequent bilateral asymmetries. Directing ground reaction forces to a point above the center of mass, referred to as the virtual pivot point (VPP), is one means of maintaining stability during walking. This cross-sectional observational study compared the dynamic gait function of 33 individuals with DS (mean age: 17.7 ± 6.4 years, 13 females) to a group of 36 healthy controls (mean age: 15.5 ± 6.1 years, 15 females), using the concept of the VPP. Results showed that the VPP was located more anteriorly in individuals with DS compared to healthy controls, with no differences in the variability (R2) or symmetry of VPP coordinates. This anterior VPP position is likely due to the larger hip moments observed in patients with DS during the propulsive phase of stance. High R2 values in DS suggest that the VPP is strongly related to dynamic stability during walking.

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Variability and coordination patterns of walking with different speeds in active and non-active children with Down syndrome: A cross-sectional case-control study

Cited by 3 publications

References 41 publications

Performance during object retrieval tasks in young children with and without Down syndrome: A pilot study

Performance during object retrieval tasks in young children with and without Down syndrome: A pilot study

Performance During Object Retrieval Tasks in Young Children with and without Down Syndrome

A Study on the Intersection of Ground Reaction Forces during Overground Walking in Down Syndrome: Effects of the Pathology and Left–Right Asymmetry

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