2.5 Kinematic and electromyographic analysis of rising from a chair during a “sit-to-walk” task in elderly subjects

Dehail, Patrick; Bestaven, Emma; Mallet, Alain; Boyer, Robert; Muller, F.; Bourdel-Marchasson, I.; Petit, J.

doi:10.1016/s0966-6362(05)80021-9

Cited by 4 publications

(6 citation statements)

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“…Phase 4 -stabilization phase: begins just after the hip-extension velocity reaches 0°/sec and continues until all motion associated with stabilization from rising is completed. In the STW motion, Phase 4 starts when the heel of the swing leg leaves the ground and ends with the next contact between the heel and the floor (18)…”

Section: Arm and Trunk Strategiesmentioning

confidence: 99%

“…This difficulty in merging implies that a pause in between tasks could be a compensation for the lack of NMSK reserve. No studies were found analysing the absence of merging in relation to reserve, although one study reports that there was no significant effect of the isokinetic strength (muscular capacity) of the knee flexors/extensors and dorsiflexors on the basis of the existence of a sudden stop in between rising and walking in the elderly (18). The lack of fluidity of the motion has been found in stroke patients (28,29) and it has been hypothesized that poor balance is one of the reasons why stroke patients are unable to begin walking fluently from the sitting position (28).…”

Section: Restricted Pacing: Fixed End-goalmentioning

confidence: 99%

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The Effect of Ageing on the Standing Up Movement Analysed using the Capacity, Reserve, Movement Objectives, and Compensation (CaReMoOC) Framework

Kruk¹,

Silverman²,

Reilly³

et al. 2020

Preprint

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In healthy ageing, capacity declines in the neural, muscular, and skeletal systems, and each system decline has its effect on the execution of complex motor tasks. This decline in capacity can result in the inability to stand up (sit-to-stand, sit-to-walk), which is a key movement for independence. The mechanisms leading to mobility limitations or inabilities are complex, overlapping, and interdependent and the complementary fields of biomechanics, motor control, and physiology need to be combined to understand these mechanisms. The aim of this review is to provide an overview of the current knowledge of age-related compensation in standing up and to consider the limitations of these results when analysing standing up in daily life using the Capacity, Reserve, Movement Objectives, and Compensation (CaReMoOC) framework that combines biomechanics, motor control, and physiology. A literature search was performed in the search engine Scopus, using the keywords and their synonyms: strateg*(approach, technique, way) AND, sit-to-walk OR sit-to-stand OR rise (raise, arise, stand, stand-up) AND chair (seat). Inclusion criteria were: biomechanics or motor control on sit-to-stand or sit-to-walk in healthy and/or frail adults (<60y) and elderly (>60y), and/or osteoarthritis patients as a specific case of ageing related decline. The review shows that movement compensations in standing up manifest as changes in planned trajectory (Compensation by Selection) and in muscle recruitment (Compensation by Reorganisation). However, as most studies in the literature typically use standardized experimental protocols where movement compensation is restricted, these studies cannot be directly translated to functional tasks, such as the mobility of the elderly in their homes, communities, and clinic. Compensation must be included in future studies in order to facilitate clinical translation. Specifically, future studies in the standing up task should 1) determine the effect of varying arm use strategies (e.g., armrests, knees, chair, cane) on trunk and both lower limb and upper limb joint loading, 2) analyse control strategies in elderly people, 3) determine the biomechanical implications of asymmetry, and 4) incorporate assessments of age-related physical and neural decline as well as changes in psychological priorities.

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Section: Arm and Trunk Strategiesmentioning

confidence: 99%

Section: Restricted Pacing: Fixed End-goalmentioning

confidence: 99%

The Effect of Ageing on the Standing Up Movement Analysed using the Capacity, Reserve, Movement Objectives, and Compensation (CaReMoOC) Framework

Kruk¹,

Silverman²,

Reilly³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Separation of STS and GI, reflective of hesitation during STW has been observed in patients with Parkinson's disease 6 and chronic stroke 7 , in addition to older unimpaired adults 8 , but not in young healthy individuals 9 . Therefore sit-to-stand-and-walk (STSW) is commonly implemented within the clinical environment and is defined by a pause phase of variable length when standing.…”

mentioning

confidence: 99%

“…Usually in STW studies the initial chair height is 100% of knee height (KH; floor-to-knee distance), foot-width and GI lead-limb are self-selected, arms are constrained across the chest and an ecologically meaningful task context is often absent [5][6][7][8][9] . However, patients find rising from 100% KH challenging 10 and frequently adopt a wider foot position compared with healthy individuals 11 , initiate gait with their affected leg 7 , and use their arms to generate momentum 7 .…”

mentioning

confidence: 99%

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Jones

James²,

Thacker

et al. 2016

JoVE

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Individuals with sensorimotor pathology e.g., stroke have difficulty executing the common task of rising from sitting and initiating gait (sit-to-walk: STW). Thus, in clinical rehabilitation separation of sit-to-stand and gait initiation-termed sit-to-stand-and-walk (STSW)-is usual. However, a standardized STSW protocol with a clearly defined analytical approach suitable for pathological assessment has yet to be defined. Hence, a goal-orientated protocol is defined that is suitable for healthy and compromised individuals by requiring the rising phase to be initiated from 120% knee height with a wide base of support independent of lead limb. Optical capture of three-dimensional (3D) segmental movement trajectories, and force platforms to yield two-dimensional (2D) center-of-pressure (COP) trajectories permit tracking of the horizontal distance between COP and whole-body-center-of-mass (BCOM), the decrease of which increases positional stability but is proposed to represent poor dynamic postural control. BCOM-COP distance is expressed with and without normalization to subjects' leg length. Whilst COP-BCOM distances vary through STSW, normalized data at the key movement events of seat-off and initial toe-off (TO1) during steps 1 and 2 have low intra and inter subject variability in 5 repeated trials performed by 10 young healthy individuals. Thus, comparing COP-BCOM distance at key events during performance of an STSW paradigm between patients with upper motor neuron injury, or other compromised patient groups, and normative data in young healthy individuals is a novel methodology for evaluation of dynamic postural stability.

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“…Os resultados obtidos no presente estudo apontam efeitos ainda mais expressivos do GE -g=2,20 com aumento de 39% da potência de extensores de joelhos após o período de intervenção, no teste de sentar e levantar de uma cadeira. Dehail et al (2007) apontam a importância do idoso se levantar de uma cadeira com segurança, sendo um fator preditivo da debilidade do indivíduo e de chance de queda. Na sua análise cinemática e eletromiográfia do gesto, referem tratar-se de uma tarefa de transição para a postura ortostática que requer o deslocamento do centro de massa de uma posição estável para uma com menor estabilidade.…”

Section: Discussão Dos Efeitos Na Capacidade Funcionalunclassified

Estrutura e função osteomuscular, capacidade funcional e qualidade de vida de idosas em resposta a um modelo de treinamento fundamentado no princípio de ação do ciclo alongamento-encurtamento

Pinho¹

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2.5 Kinematic and electromyographic analysis of rising from a chair during a “sit-to-walk” task in elderly subjects

Cited by 4 publications

References 0 publications

The Effect of Ageing on the Standing Up Movement Analysed using the Capacity, Reserve, Movement Objectives, and Compensation (CaReMoOC) Framework

The Effect of Ageing on the Standing Up Movement Analysed using the Capacity, Reserve, Movement Objectives, and Compensation (CaReMoOC) Framework

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb

Estrutura e função osteomuscular, capacidade funcional e qualidade de vida de idosas em resposta a um modelo de treinamento fundamentado no princípio de ação do ciclo alongamento-encurtamento

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