Sit-to-Stand Movement Pattern

Nuzik, Sharon; Lamb, Robert L; VanSant, Ann F.; Hirt, Susanne

doi:10.1093/ptj/66.11.1708

Cited by 215 publications

(119 citation statements)

References 6 publications

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“…The pattern and definition of the STS activity have been analyzed by many authors [5,19,22,28] based on the observation and measurements of body markers. Aissaoui and Dansereau [1] present a detailed description of the STS cycle, based on the detection of events that separates the cycle into phases (see Fig.…”

Section: Sit To Stand Biomechanicsmentioning

confidence: 99%

“…Considering the results obtained in [28], the muscular activity of the lower extremity is computed using the SIMTK package [6]. The angular positions of the joints from [28], represents the relative angle between body segments, are expressed according to the settings of SIMTK.…”

Section: )mentioning

confidence: 99%

“…The angular positions of the joints from [28], represents the relative angle between body segments, are expressed according to the settings of SIMTK.…”

Section: )mentioning

confidence: 99%

“…As can be seen, the trajectory is continuos in velocity, and the beginning and end are cero. The movement pattern was extracted from [28]. Figure 5c and d shows the motion and velocity of the robot's joints, respectively.…”

Section: )mentioning

confidence: 99%

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ROAD: domestic assistant and rehabilitation robot

Carrera¹,

Moreno²,

Saltarén³

et al. 2011

Med Biol Eng Comput

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This study introduces the concept design and analysis of a robotic system for the assistance and rehabilitation of disabled people. Based on the statistical data of the most common types of disabilities in Spain and other industrialized countries, the different tasks that the device must be able to perform have been determined. In this study, different robots for rehabilitation and assistance previously introduced have been reviewed. This survey is focused on those robots that assist with gait, balance and standing up. The structure of the ROAD robot presents various advantages over these robots, we discuss some of them. The performance of the proposed architecture is analyzed when it performs the sit to stand activity.

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Section: Sit To Stand Biomechanicsmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

“…The angular positions of the joints from [28], represents the relative angle between body segments, are expressed according to the settings of SIMTK.…”

Section: )mentioning

confidence: 99%

Section: )mentioning

confidence: 99%

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ROAD: domestic assistant and rehabilitation robot

Carrera¹,

Moreno²,

Saltarén³

et al. 2011

Med Biol Eng Comput

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show abstract

“…The switching curve found from series (b) was corrected to obtain an earlier switching moment to compensate for knee extensor dynamics. This was realised by rotating the switching curve in state space around the target position (0 = re, 0 = 0) (NuzIK et at., 1986). In the model simulations first automatic hill-search was applied to find the optimum rotation of the switching curve with respect to F a and tm.…”

Section: Protocolmentioning

confidence: 99%

On/off control in FES-induced standing up: A model study and experiments

Mulder

Veltink

Boom

1992

Med. Biol. Eng. Comput.

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Trunk movement in Parkinson's disease during rising from seated position

et al. 2002

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Parkinson's disease (PD) is associated with particular difficulties rising from a seated position. Little is known about the mechanisms of sit-to-stand in this condition. We sought to define trunk movement during sit-to-stand in a group of patients with PD. Six patients and seven normal volunteers were studied using a six camera ELITE motion analysis system (BTS, Milan, Italy), which permitted data collection in the coronal, sagittal, and transverse planes. Retroreflective markers were positioned along the spine at C7, T3, T6, T9, T12, L3, and the sacrum. Whole-trunk kinematics and the movement at the six different trunk markers were recorded during rising. PD patients have a significantly greater degree of trunk flexion than controls, showing a significant increase in angular velocity of the trunk in the sagittal plane. The total range of movement of trunk rotation was significantly smaller in the PD group, but lateral movement in the trunk was greater than normal. These data suggest that patients with early PD compensate for their difficulties rising from a chair by generating greater trunk flexion at higher angular velocity, thus developing greater forward momentum. This process results in a decrease in the duration of the unstable transitional phase of sit-to-stand, allowing PD patients to reach the upright position as easily and safely as possible. Small rotational movements are an effective way to maintain the centre of mass within the base of support during sit-to-stand. This mechanism appears to be denied to the PD patients who may use increased movements in the coronal plane as an alternative strategy.

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Sit-to-Stand Movement Pattern

Cited by 215 publications

References 6 publications

ROAD: domestic assistant and rehabilitation robot

ROAD: domestic assistant and rehabilitation robot

On/off control in FES-induced standing up: A model study and experiments

Trunk movement in Parkinson's disease during rising from seated position

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