Adding loads to occupied wheelchairs: Effect on static rear and forward stability

1996 ◽  
Vol 77 (2) ◽  
pp. 183-186 ◽  
Author(s):  
R.Lee Kirby ◽  
Brian D. Ashton ◽  
Stacy A. Ackroyd-Stolarz ◽  
Donald A. MacLeod
Keyword(s):  
Forward Stability

Failing Forward: Stability of Transparent Electrodes Based on Metal Nanowire Networks

2020 ◽  
pp. 2004356
Author(s):  
Jatin J. Patil ◽  
Woo Hyun Chae ◽  
Adam Trebach ◽  
Ki‐Jana Carter ◽  
Eric Lee ◽  
...  
Keyword(s):  
Transparent Electrodes ◽  
Nanowire Networks ◽  
Metal Nanowire ◽  
Forward Stability

scholarly journals X. A disquisition on the stability of ships

1798 ◽  
Vol 88 ◽  
Keyword(s):  
Considerable Influence ◽  
Progressive Motion ◽  
Essential Properties ◽  
The Stability ◽  
Forward Stability

The stability of vessels, by which they are enabled to carry a sufficient quantity of sail, without danger or inconvenience, is reckoned amongst their most essential properties ; although the wind may, in one sense, be said to constitute the power by which ships are moved forward in the sea, yet, if it acts on a vessel deficient in stability, the effect will be to incline the ship from the upright, rather than to propel it forward : stability is therefore not less necessary than the impulses of the wind are, to the progressive motion of vessels. This power has also considerable influence in regulating the alternate oscillations of a ship in rolling and pitching; which will be smooth and equable, or sudden and irregular, in a great measure, according as the stability is greater or less at the several angles of inclination from the upright.

scholarly journals Study on Dynamic Stability of a Truck Crane Carrier : 3rd Report, Approximate Analysis of Forward Stability in Load Lowering Down Motion

1985 ◽  
Vol 28 (244) ◽  
pp. 2474-2479 ◽  
Author(s):  
Hiroshi ITO ◽  
Mitsuhiko HASEGAWA ◽  
Tsukasa IRIE ◽  
Yoshio KATO
Keyword(s):  
Dynamic Stability ◽  
Approximate Analysis ◽  
Forward Stability

scholarly journals Effect of Externally Cued Training on Dynamic Stability Control During the Sit-to-Stand Task in People With Parkinson Disease

2013 ◽  
Vol 93 (4) ◽  
pp. 492-503 ◽  
Author(s):  
Tanvi Bhatt ◽  
Feng Yang ◽  
Margaret K.Y. Mak ◽  
Christina W-Y. Hui-Chan ◽  
Yi-Chung Pai
Keyword(s):  
Dynamic Stability ◽  
Center Of Mass ◽  
Stability Control ◽  
Sit To Stand ◽  
Backward Stability ◽  
Stability Limits ◽  
Balance Loss ◽  
Mass Position ◽  
Dynamic Stability Control ◽  
Forward Stability

Background Previous studies have shown that people with Parkinson disease (PD) have difficulty performing the sit-to-stand task because of mobility and stability-related impairments. Despite its importance, literature on the quantification of dynamic stability control in people with PD during this task is limited. Objective The study objective was to examine differences in dynamic stability control between people with PD and people who were healthy and the extent to which externally cued training could improve such control during the sit-to-stand task in people with PD. Design This was a quasi-experimental controlled trial. Methods The performance of 21 people with PD was compared with that of 12 older adults who dwelled in the community. People with PD were randomly assigned to 2 groups: a group that did not receive training and a group that received audiovisually cued training (3 times per week for 4 weeks) for speeding up performance on the sit-to-stand task. Outcome measures recorded at baseline and after 4 weeks included center-of-mass position, center-of-mass velocity, and stability against either backward or forward balance loss (backward or forward stability) at seat-off and movement termination. Results Compared with people who were healthy, people with PD had greater backward stability resulting from a more anterior center-of-mass position at seat-off. This feature, combined with decreased forward stability at movement termination, increased their risk of forward balance loss at movement termination. After training, people with PD achieved greater backward stability through increased forward center-of-mass velocity at seat-off and reduced the likelihood of forward balance loss at movement termination through a posterior shift in the center-of-mass position. Limitations The study applied stability limits derived from adults who were healthy to people with PD, and the suggested impact on the risk of balance loss and falling is based on these theoretical stability limits. Conclusions For people with PD, postural stability against backward balance loss at task initiation was increased at the expense of possible forward balance loss at task termination. Task-specific training with preparatory audiovisual cues resulted in improved overall dynamic stability against both forward and backward balance loss.

On the forward stability of a modified ‘stride of 3’ reduction method

1994 ◽  
Vol 20 (8) ◽  
pp. 1175-1190
Author(s):  
P. Yalamov ◽  
D.J. Evans
Keyword(s):  
Reduction Method ◽  
Forward Stability

scholarly journals Forward Stability of ResNet and Its Variants

2019 ◽  
Vol 62 (3) ◽  
pp. 328-351 ◽  
Author(s):  
Linan Zhang ◽  
Hayden Schaeffer
Keyword(s):  
Forward Stability
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