Obstacle crossing in lower limb amputees

Vrieling, Aline H.; Keeken, van Helco; Schoppen, Tanneke; Otten, Egbert; Halbertsma, Jan P.K.; Hof, At L.; Postema, Klaas

doi:10.1016/j.gaitpost.2006.12.007

Cited by 52 publications

(60 citation statements)

References 32 publications

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“…Use of a prosthesis may promote independence in activities that incorporate the lower limb (e.g., postural transitions, locomotion), but prominent deficits remain. Standing balance [12], level-ground walking [13][14][15][16][17][18], stair ascent and descent [19][20][21], hill ascent and descent [22], negotiation of uneven terrain [14], standing from and sitting in a chair [23], and obstacle avoidance [24] have been reported to be significantly impaired in persons with TFA compared to nondisabled control subjects. Documented limitations typically relate to the capacity of prosthetic users to engage in specified activities compared with those without amputation in controlled laboratory environments.…”

Section: Introductionmentioning

confidence: 99%

Long-term activity in and among persons with transfemoral amputation

Halsne¹,

Waddingham²,

Hafner³

2013

JRRD

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Abstract-Although physical limitations associated with transfemoral amputation (TFA) have been studied in laboratory settings, little is known about habitual activity within free-living environments. A retrospective analysis of 12 mo of step activity data was performed to quantify activity levels, variations, and patterns in 17 adults with unilateral TFA. Yearly, seasonal, and monthly average daily step counts and coefficients of variation (CoVs) were examined to characterize mobility. Analysis by Medicare Functional Classification Level (MFCL) was performed to explore relationships between clinical classification and performance. Subjects averaged 1,540 prosthetic steps/day, and activity generally increased with MFCL. Activity between MFCL-2 and -3 subjects was not significantly different, suggesting that ability to engage in habitual physical activity may be similar for these groups. Relative variation (CoV) was 0.65 across subjects but was lower for those with higher activity levels. No significant differences in CoV by group were detected. Marked seasonal and monthly patterns in activity were identified. Warmer seasons and months generally promoted higher activity, but peak temperatures and humidity depressed activity. Results suggest that persons with TFA are greatly limited in regards to activity. Further, large variations within and between subjects may challenge the interpretation of step activity gathered over short periods of time.

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Section: Introductionmentioning

confidence: 99%

Long-term activity in and among persons with transfemoral amputation

Halsne¹,

Waddingham²,

Hafner³

2013

JRRD

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“…5, the hip was consistently more externally rotated throughout the entire gait cycle, indicating that as the subject swung the limb forward, the leg lagged behind in comparison to normal walking. This motion is similar to the hip circumduction strategy often seen in prosthesis users during obstacle clearance [12]. By rotating at the hip joint, this enabled the subject to achieve greater toe clearance even with less knee flexion as compared with normal walking.…”

Section: Discussionmentioning

confidence: 59%

Experimental studies on kinematics and kinetics of walking with an assistive knee brace

Hung

Guo

Liao

et al. 2011

2011 IEEE International Conference on Information and Automation

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“…The percentage agreement scores between the two reviewers were good (Cohen kappa: 0.67). Only four studies scored >50 percent in both external validity and internal validity sections [18,33,41,43]. None of the included studies reported power calculation and all scored poorly for this question.…”

Section: Outcome Variablesmentioning

confidence: 94%

Spinal, pelvic, and hip movement asymmetries in people with lower-limb amputation: Systematic review

et al. 2015

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Abstract-Following amputation, people with transfemoral amputation (TFA) and transtibial amputation (TTA) adapt with asymmetrical movements in the spinal and lower-limb joints. The aim of this review is to describe the trunk, lumbopelvic, and hip joint movement asymmetries of the amputated limb of people with TFA and TTA during functional tasks as compared with the intact leg and/or referent leg of nondisabled controls. Electronic databases were searched from inception to February 2014. Studies with kinematic data comparing (1) amputated and intact leg and (2) amputated and referent leg of nondisabled controls were included (26 articles). Considerable heterogeneity in the studies precluded data pooling. During stance phase of walking in participants with TFA, there is moderate evidence for increased trunk lateral flexion toward the amputated limb as compared with the intact leg and increased anterior pelvic tilt as compared with nondisabled controls. None of the studies investigated spinal kinematics during other functional tasks such as running, ramp walking, stair climbing, or obstacle crossing in participants with TFA or TTA. Overall, persons with TFA adapt with trunk and pelvic movement asymmetries at the amputated limb to facilitate weight transfer during walking. Among participants with TTA, there is limited evidence of spinal and pelvic asymmetries during walking.

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Obstacle crossing in lower limb amputees

Cited by 52 publications

References 32 publications

Long-term activity in and among persons with transfemoral amputation

Long-term activity in and among persons with transfemoral amputation

Experimental studies on kinematics and kinetics of walking with an assistive knee brace

Spinal, pelvic, and hip movement asymmetries in people with lower-limb amputation: Systematic review

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