Chair rise strategies in the elderly

Hughes, Michael; Weiner, Debra K.; Schenkman, Margaret; Long, Rebecca; Studenski, Stephanie A.

doi:10.1016/0268-0033(94)90020-5

Cited by 174 publications

(139 citation statements)

References 9 publications

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“…These findings also show that myodesis of muscles, specially biarticular muscles, in trans-femoral amputees is important for walking but also may be even more important for standing up, the prerequisite for walking. Hughes et al (1994) described two strategies for standing up, the momentum transfer and the stabilization. In the momentum transfer, a rapid forward motion of the trunk helps Standing up after trans-femoral amputationknee musculature to extend the knees.…”

Section: Discussionmentioning

confidence: 99%

Transition from Sitting to Standing after Trans-Femoral Amputation

Burger

Kuzelicki

Marinček

2005

Prosthetics &Amp; Orthotics International

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Standing up is an important and common daily activity. It is essential for independence and a prerequisite for walking. Many elderly and many subjects with impairments have problems with transition from sitting to standing. The aim of the present study was to determine whether there was any difference between the characteristics of standing up in trans-femoral amputees and healthy subjects. Five young trans-femoral amputees and five healthy subjects were included in the study. They were asked to stand up. The body motion was recorded using an Optotrak contactless optical system. The force and moment vectors exerted on the seat were recorded by a JR3 six-axis robot wrist sensor. The force under the feet was recorded by two AMTI force plates. The trans-femoral amputees were found to stand up more slowly than the healthy subjects. The angles of the hip, knee, and ankle joints on the amputated side were different from the angles on the healthy side or in the healthy subjects. There was also a great difference in loading between the healthy and the prosthetic foot. It can be concluded that there are differences in standing up between the trans-femoral amputees and the healthy subjects. These differences may indicate a reason for problems many elderly trans-femoral amputees face when standing up.

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Section: Discussionmentioning

confidence: 99%

Transition from Sitting to Standing after Trans-Femoral Amputation

Burger

Kuzelicki

Marinček

2005

Prosthetics &Amp; Orthotics International

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“…Using the BP, we could then control the support tool for the person using the device to stand up. In a previous study, it was argued that elderly persons may require different strategies for standing up than younger ones [30]. Thus, in the future, we will study whether we can record BPs from the elderly persons such as in the present study.…”

Section: Discussionmentioning

confidence: 90%

The Detection of the Rise to Stand Movements Using Bereitschaftspotential from Scalp Electroencephalography (EEG)

Singh

Wagatsuma

Natsume

2017

SICE Journal of Control, Measurement, and System Integration

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: The negative-going Bereitschaftspotential (BP) is associated with the preparation and execution of dynamic movement. So far, BP for simple movements involving either the upper or the lower body has been studied. However, BP has not yet been recorded during both movements. Our study reveals that the negative-going BP was evoked around 3 to 2 seconds before the onset of the rise in response to a start cue. The BP had a negative peak before the onset of the movement of the trunk. BP for the rise to standing up was started around -3 seconds. The corresponding BP while seated could not be recorded in response to the other start cue. Then we tried to discriminate the onset for rise to stand, and for keeping seated using BP data in time domain. BP for 0.5 seconds in the time window is used for the time-shifted leave-one-out cross validation method. The method shows that using 0.5 seconds to 2 seconds before the onset of the movement could detect whether the subject would stand up or keep seated with the correction rate of about 60% to 70%. These results suggest that using the negative BP can detect the subject's will to stand-up.

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“…Moreover, moderate-to-high relationships were found not only with the vertical velocity but also with the cross velocity of the center of gravity. Kerr et al [20] and Hughes et al [21] reported that when transferring the center of gravity vertically during the STS movement, greatest ability and exertion are required in the phase from the starting movement to the hip lift, and some elderly people cannot achieve STS because of this large burden. In this phase, the elderly bend the trunk forward and the upper body shifts in the upper direction faster (Hughes et al, 1996; Kerr et al, 1997; Papa et al, 2000).…”

Section: Discussionmentioning

confidence: 99%

Relationship between validity of center of gravity transferring velocities measured by rotary encoder and three-dimensional motion analysis during sit-to-stand movement in the elderly

Yamada

Demura

2013

IJH

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This study examined the validity of center of gravity transferring velocity (VCG) measured by a rotary encoder (RE) during sit-to-stand (STS) movement with that measured by three-dimensional motion analysis (3DMA). Fifteen healthy elderly females (age, 78.7±4.6 years) were asked to stand up as fast as possible without assistance from a chair adjusted for their knee height. VCG was measured simultaneously by 3DMA and RE. The peak and mean velocities from the start to movement completion were calculated by both methods. Cross, crosswise, and vertical directions were also calculated for the 3DMA. Significant relationships were found between peak and mean velocities measured by RE and the cross and vertical velocities measured by the 3DMA (peak velocity: cross, 0.60, vertical, 0.97; mean velocity: cross, 0.77, vertical, 0.75), but low in crosswise (r<0.47). RE is useful for evaluating VCG during STS movement and is highly correlated with the vertical velocity measured by 3DMA.

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Chair rise strategies in the elderly

Cited by 174 publications

References 9 publications

Transition from Sitting to Standing after Trans-Femoral Amputation

Transition from Sitting to Standing after Trans-Femoral Amputation

The Detection of the Rise to Stand Movements Using Bereitschaftspotential from Scalp Electroencephalography (EEG)

Relationship between validity of center of gravity transferring velocities measured by rotary encoder and three-dimensional motion analysis during sit-to-stand movement in the elderly

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