A characterisation of established unilateral transfemoral amputee gait using 3D kinematics, kinetics and oxygen consumption measures

Carse, Bruce; Scott, Helen; Brady, Laura; Colvin, J.

doi:10.1016/j.gaitpost.2019.09.029

Cited by 38 publications

(42 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…People with amputation need considerable walking training [3] to adopt a series of compensatory motor strategies involving both prosthetic and sound limbs [4][5][6][7]. Gait kinematic and kinetic analyses documented an asymmetric gait characterized by the shortened stance, enlarged double support durations, and reduced knee flexion and hip extension ranges of motion (ROM) in the prosthetic limb [8][9][10][11][12] and enlarged stance duration [9,13], augmented hip and knee joint ROM [6,8,14], ankle joint power [15], and vertical ground reaction force [16,17] in the sound limb. This abnormal gait pattern is dependent on the amputation level, being more pronounced, and with greater mechanical work, in people with transfemoral amputation (TFA) when compared with people with transtibial amputation (TTA) [6,18].…”

Section: Introductionmentioning

confidence: 99%

Global Muscle Coactivation of the Sound Limb in Gait of People with Transfemoral and Transtibial Amputation

Tatarelli

Serrao

Varrecchia

et al. 2020

Sensors

View full text Add to dashboard Cite

The aim of this study was to analyze the effect of the level of amputation and various prosthetic devices on the muscle activation of the sound limb in people with unilateral transfemoral and transtibial amputation. We calculated the global coactivation of 12 muscles using the time-varying multimuscle coactivation function method in 37 subjects with unilateral transfemoral amputation (10, 16, and 11 with mechanical, electronic, and bionic prostheses, respectively), 11 subjects with transtibial amputation, and 22 healthy subjects representing the control group. The results highlighted that people with amputation had a global coactivation temporal profile similar to that of healthy subjects. However, amputation increased the level of the simultaneous activation of many muscles during the loading response and push-off phases of the gait cycle and decreased it in the midstance and swing subphases. This increased coactivation probably plays a role in prosthetic gait asymmetry and energy consumption. Furthermore, people with amputation and wearing electronic prosthesis showed lower global coactivation when compared with people wearing mechanical and bionic prostheses. These findings suggest that the global lower limb coactivation behavior can be a useful tool to analyze the motor control strategies adopted and the ability to adapt to the prosthetic device.

show abstract

Section: Introductionmentioning

confidence: 99%

Global Muscle Coactivation of the Sound Limb in Gait of People with Transfemoral and Transtibial Amputation

Tatarelli

Serrao

Varrecchia

et al. 2020

Sensors

View full text Add to dashboard Cite

show abstract

“…This study investigated patients with objective testing using standardised 3D gait analysis, which leverages 3D camera technology and floor pressure sensors, to provide a far greater degree of sensitivity and objectivity than other measures such as visual gait analysis, isometric strength, and patient reported outcomes. It also provides a key outcome measure -the Gait Profile Score (GPS), that quantifies the deviation between pathological and healthy unimpaired populations [9] -and has been used to assess the impact of surgical interventions in cerebral palsy [9] and lower-limb amputations [10,11].…”

Section: "Will I Need To Use Crutches or A Knee Brace?"mentioning

confidence: 99%

Functional quadriceps reconstruction: 3D gait analysis, EMG and environmental simulator outcomes

Childs²,

Mahendra³

et al. 2022

Journal of Plastic, Reconstructive & Aesthetic Surgery

Self Cite

View full text Add to dashboard Cite

“…23 Net nondimensional normalized (NNN) oxygen cost of walking was used as a measure of gait efficiency 24 because it represented a gait efficiency measure that was largely independent of mass, height, and walking velocity by using net oxygen utilization and nondimensional gait variables. Percentage CoM deviation was used to describe how much the patient's CoM trajectory deviated relative to a straight line during one complete gait cycle, with calculations fully described in the work of Carse et al 1 Other outcome measures included walking velocity, overall average step length, step length symmetry ratio, step time symmetry ratio, and base of support. 25 Reference values for all outcome measures, collected using identical measurement protocols, were taken from a database of locally collected unimpaired healthy adults aged 31 6 5 years with body mass index 23.6 6 2.2 kg/m 2 .…”

Section: Outcome Measuresmentioning

confidence: 99%

Evaluation of gait outcomes for individuals with established unilateral transfemoral amputation following the provision of microprocessor controlled knees in the context of a clinical service

Carse

Scott

Brady

et al. 2021

Prosthetics &Amp; Orthotics International

Self Cite

View full text Add to dashboard Cite

Background: Microprocessor controlled knees (MPKs) have been shown to improve gait outcomes for individuals with unilateral transfemoral amputation (TFA); however, previous studies have limitations, which may affect their applicability. Objectives: To compare gait outcomes between non-MPK and MPK conditions within a large and diverse cohort of established TFAs in the pragmatic context of an operational clinical service and to identify any demographic variables that correlate with changes in gait outcomes.Study Design: This is a retrospective cohort study. Methods: Full-body three-dimensional motion capture and a portable breath gas analyser were used to evaluate gait-specific outcomes both pre-MPK and 6 months post-MPK provisions in TFAs (n 5 32). The primary outcome measure was gait profile score, along with the following secondary outcome measures: walking velocity, step length, step length symmetry ratio, step time symmetry ratio, vertical ground reaction force symmetry index, base of support, center of mass deviation, and oxygen cost of walking. Results: Data showed statistically significant improvement in gait profile score from 11.2°6 2.2°to 10.1°6 2.1°(p , 0.01) between non-MPK and MPK conditions. Other outcomes which showed significant improvement were walking velocity (p , 0.01), step length (p , 0.01), vertical ground reaction force symmetry index (p , 0.01), and center of mass deviation (p , 0.05). Conclusions: MPK provision offered significant gait improvements to this cohort of TFAs in an operational clinical setting. There still remains a large gap in gait outcomes between this cohort and those of healthy unimpaired adults. Improvements in socket design, prosthetic foot design, and physiotherapy intervention could further reduce this gap.

show abstract

A characterisation of established unilateral transfemoral amputee gait using 3D kinematics, kinetics and oxygen consumption measures

Cited by 38 publications

References 35 publications

Global Muscle Coactivation of the Sound Limb in Gait of People with Transfemoral and Transtibial Amputation

Global Muscle Coactivation of the Sound Limb in Gait of People with Transfemoral and Transtibial Amputation

Functional quadriceps reconstruction: 3D gait analysis, EMG and environmental simulator outcomes

Evaluation of gait outcomes for individuals with established unilateral transfemoral amputation following the provision of microprocessor controlled knees in the context of a clinical service

Contact Info

Product

Resources

About