scholarly journals Direct measurement of plantarflexion resistive moments and angular positions of an articulated ankle–foot orthosis while walking in individuals post stroke: A preliminary study

2016 ◽  
Vol 3 ◽  
pp. 205566831663944 ◽  
Author(s):  
Toshiki Kobayashi ◽  
Michael S Orendurff ◽  
Madeline L Singer ◽  
Wayne K Daly ◽  
Lucas S Lincoln ◽  
...  
2018 ◽  
Vol 36 (4) ◽  
pp. 547-558 ◽  
Author(s):  
Frank Berenpas ◽  
Sven Schiemanck ◽  
Anita Beelen ◽  
Frans Nollet ◽  
Vivian Weerdesteyn ◽  
...  

1996 ◽  
Vol 20 (3) ◽  
pp. 191-194 ◽  
Author(s):  
S. Kakurai ◽  
M. Akai

As rehabilitation for post-stroke hemiplegic patients has become widely accepted practice, there has been an increase in patients who are more difficult to treat. In the prescription rationale of orthoses for hemiplegics, the knee-ankle-foot orthosis (KAFO) for the lower limb has generally been underestimated because of its inhibitory effect on the normal walking pattern and also its interference with gait training. The authors had an experience of 28 hemiplegics with severe physical impairments who were fitted with a convertible plastic KAFO. Among these patients, there were 11 cases in which the KAFO was replaced by an ankle-foot orthosis (AFO) within 1.5 to 8 months (average 4 months) following initial prescription when they were able to control their knee actively. Ambulatory capability in these patients was superior to that of the remaining KAFO group. The Barthel index of the AFO group patients was higher than the KAFO group (p<0.01). However neither age, sex, severity of hemiplegia, starting time of rehabilitation following onset of stroke, time of fitting with the orthosis, nor the functional recovery stage were critical factors between the two groups, only the incidence of major complications affected ambulatory capability.


2019 ◽  
Vol 4 (3) ◽  
pp. 2547-2552 ◽  
Author(s):  
Junghan Kwon ◽  
Ji-Hong Park ◽  
Subyeong Ku ◽  
YeongHyeon Jeong ◽  
Nam-Jong Paik ◽  
...  

2019 ◽  
Vol 9 (20) ◽  
pp. 4416 ◽  
Author(s):  
Dimas Adiputra ◽  
Mohd Azizi Abdul Rahman ◽  
Ubaidillah ◽  
Saiful Amri Mazlan ◽  
Nurhazimah Nazmi ◽  
...  

This paper aims to present a preliminary study of control reference parameters for stance assistance among different subjects and walking speeds using a passive-controlled ankle foot orthosis. Four young male able-bodied subjects with varying body mass indexes (23.842 ± 4.827) walked in three walking speeds of 1, 3, and 5 km/h. Two control references, average ankle torque (aMa), and ankle angular velocity (aω), which can be implemented using a magnetorheological brake, were measured. Regression analysis was conducted to identify suitable control references in the three different phases of the stance. The results showed that aω has greater correlation (p) with body mass index and walking speed compared to aMa in the whole stance phase (p1(aω) = 0.666 > p1(aMa) = 0.560, p2(aω) = 0.837 > p2(aMa) = 0.277, and p3(aω) = 0.839 > p3(aMa) = 0.369). The estimation standard error (Se) of the aMa was found to be generally higher than of aω (Se1(aMa) = 2.251 > Se1(aω) = 0.786, Se2(aMa) = 1.236 > Se2(aω) = 0.231, Se3(aMa) = 0.696 < Se3(aω) = 0.755). Future studies should perform aω estimation based on body mass index and walking speed, as suggested by the higher correlation and lower standard error as compared to aMa. The number of subjects and walking speed scenarios should also be increased to reduce the standard error of control reference parameters estimation.


2015 ◽  
Vol 30 (8) ◽  
pp. 775-780 ◽  
Author(s):  
Toshiki Kobayashi ◽  
Madeline L. Singer ◽  
Michael S. Orendurff ◽  
Fan Gao ◽  
Wayne K. Daly ◽  
...  

2011 ◽  
Vol 26 (5) ◽  
pp. 673-677 ◽  
Author(s):  
Hirokazu HARUNA ◽  
Shunichi SUGIHARA ◽  
Keisuke KON ◽  
Yasuyuki HAYAKAWA ◽  
Toshiya NOSAKA

2013 ◽  
Vol 38 (2) ◽  
pp. 148-154 ◽  
Author(s):  
Angelika Zissimopoulos ◽  
Stefania Fatone ◽  
Steven Gard

Background: One intervention often used to address physical impairments post stroke is an ankle–foot orthosis. Ankle–foot orthoses may improve walking speed, stride length, and gait pattern. However, effects on balance, crucial for safe ambulation, are thus far inconclusive. One aspect of balance shown to contribute to functional ability is self-efficacy. Self-efficacy, defined as the belief in one’s ability to succeed in particular situations, has been shown to be more strongly associated with activity and participation (as defined by the International Classification of Functioning, Disability, and Health) than physical performance measures of gait or balance. Objectives: We investigated whether self-efficacy, or balance confidence when referred to in the context of balance capabilities, is improved with ankle–foot orthosis use. Study design: Repeated measures study design. Methods: Balance confidence was measured using the Activities-specific Balance Confidence Scale in 15 persons with chronic poststroke hemiplegia, with and without their regular ankle–foot orthosis. Results: Activities-specific Balance Confidence Scale scores were significantly higher ( p ≤ 0.01) for the ankle–foot orthosis condition compared to no ankle–foot orthosis. Conclusions: One mechanism by which ankle–foot orthosis use may influence balance is improved balance confidence. Future work should explore the specific mechanisms underlying this improvement in self-efficacy. Clinical relevance Self-efficacy may be an important factor to consider when evaluating functioning post stroke. Rehabilitative interventions that improve balance confidence may help restore participation and overall functioning in pathological populations, particularly in the fall-prone poststroke population. Study results provide evidence for improvements in balance confidence with ankle–foot orthosis use.


Sign in / Sign up

Export Citation Format

Share Document