The influence of hip muscle strength on gait in individuals with a unilateral transfemoral amputation

Heitzmann, Daniel; Leboucher, Julien; Block, Julia; Günther, Michael; Putz, Cornelia; Götze, Marco; Wolf, Sebastian I.; Alimusaj, Merkur

doi:10.1371/journal.pone.0238093

Cited by 30 publications

(23 citation statements)

References 45 publications

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“…During upslope walking, the positive hip work of the residual limb was 68% of the work produced by the hip of AB subjects. This is consistent with force deficit at the hip of transfemoral amputees which has been quantified to about 30% of the maximum isometric force compared to able bodied subjects (Heitzmann et al, 2020). The huge deficit of positive work produced by the prosthetic ankle cannot be compensated by the residual hip which led to a summed ankle-knee-hip work of 0.12 +/-0.07 J/kg on level ground and 0.26 +/-0.14 J/kg during upslope walking.…”

Section: Discussionsupporting

confidence: 87%

Distribution of joint work during walking on slopes among persons with transfemoral amputation

Bonnet

Villa

Loiret

et al. 2021

Journal of Biomechanics

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Section: Discussionsupporting

confidence: 87%

Distribution of joint work during walking on slopes among persons with transfemoral amputation

Bonnet

Villa

Loiret

et al. 2021

Journal of Biomechanics

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“…Before BAP implantation, the individuals in the current study demonstrated differences in frontal plane movement patterns from reference values in line with those reported in prior work, including widened step width, increased hip abduction, and increased ipsilateral trunk lean during single limb support on the prosthetic limb [ 17 , 18 ]. This compensatory pattern is thought to aid stability over the prosthetic knee and ankle components [ 28 , 29 ], reduce pressure on the mediolateral aspect of the residual limb within the socket and improve comfort [ 3 , 30 ], stabilize the residual limb against the lateral wall of the socket, and/or decrease muscular work by a weak or mechanically disadvantaged hip abductor [ 31 , 32 ]. Further, an ipsilateral pelvic hike and compensatory decrease in trunk-pelvis angle during prosthetic limb swing was also observed among the current participants pre-implantation.…”

Section: Discussionmentioning

confidence: 99%

Changes in frontal plane kinematics over 12-months in individuals with the Percutaneous Osseointegrated Prosthesis (POP)

et al. 2023

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Background A bone-anchored prosthesis (BAP) eliminates the need for a conventional socket by attaching a prosthesis directly to the user’s skeleton. Currently, limited research addresses changes in gait mechanics post BAP implantation. Objective Examine changes in frontal plane movement patterns after BAP implantation. Methods Participants were individuals with unilateral transfemoral amputation (TFA) enrolled in the US Food and Drug Administration (FDA) Early Feasibility Study examining the Percutaneous Osseointegrated Prosthesis (POP). The participants completed overground gait assessments using their conventional socket and at 6-weeks, 12-weeks, 6-months, and 12-months following POP implantation. Statistical parameter mapping techniques were used in examining changes in frontal plane kinematics over the 12-months and differences with reference values for individuals without limb loss. Results Statistically significant deviations were found pre-implantation compared to reference values for hip and trunk angles during prosthetic limb stance phase, and for pelvis and trunk relative to the pelvis angles during prosthetic limb swing. At 6-weeks post-implantation, only the trunk angle demonstrated a statistically significant reduction in the percent of gait cycle with deviations relative to reference values. At 12-months post-implantation, results revealed frontal plane movements were no longer statistically different across the gait cycle for the trunk angle compared to reference values, and less of the gait cycle was statistically different compared to reference values for all other frontal plane patterns analyzed. No statistically significant within-participant differences were found for frontal plane movement patterns between pre-implantation and 6-weeks or 12-months post-implantation. Conclusions Deviations from reference values displayed prior to device implantation were reduced or eliminated 12-months post-implantation in all frontal plane patterns analyzed, while within-participant changes over the 12-month period did not reach statistical significance. Overall, the results suggest the transition to a BAP aided in normalizing gait patterns in a sample of relatively high functioning individuals with TFA.

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“…Transfemoral amputation negatively affects the abductor and adductor muscles of the hip. It also negatively affects flexion and extension of the back and abdominal muscles 39 . There is also a direct relationship between limb length in the amputated area and the generated force moment and isokinetic contraction force.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Strength Parameters in Amputee Football Players According to the Degree of Amputation

Kurtoğlu¹,

Konar²,

Akçınar³

et al. 2022

PJMHS

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Background: Amputee football is a sports branch for the disabled that has become popular in recent years. However, studies on determining and improving the performance parameters of amputee football players are limited. Aim: The purpose of this study is to compare the strength parameters of amputee football players (AF) depending on the degree of amputation. Methods: 35 amputee football players aged 16-48 years, actively participating in amputee football superleague, participated in our study. Descriptive research, one of the quantitative data collection instruments, was chosen as the research type. In the study, participants with transtibial amputation (TTA) (n=17, age=32.41±2.13, height= 173.47±1.82, weight=69.17±2.47) and transfemoral amputation (TFA) (n=18, age=26.50±1.26, height= 177.00±1.29, weight= 72.22±2.92) were divided into two groups according to amputation level. After recording the demographic data (age, height, weight, amputation level) of the participants, the waist-to-hip ratio was measured. During the study, participants' back, leg, and handgrip strengths were measured using a Takai brand dynamometer. For the statistical operations in the study, SPSS 25 package programme was used. Independent Samples T Test was used for the analysis of variables between groups. The Pearson correlation test was used to determine the relationship between the variables. Results: According to the results of the study, no significant difference was found between the TTA and TFA groups in terms of back strength, leg strength, hand grip strength, and hip-to-hip ratio (p > 0.05). Pearson's correlation analysis between variables revealed that for participants with TTA, there was a relationship between back strength and height (p=.031) and weight (p=.012), between leg strength and waist circumference (p=.037) and hip circumference (p=.035), and between handgrip strength and height. (p=.006), a high correlation was found between waist-to-hip ratio and age (p=.002), weight (p=.004) and BMI (p=.000) (p < 0.05). A high correlation was found between back strength, leg strength (p=.007) and handgrip strength (p=.020), waist-hip ratio and BMI (p=.032) in participants with TFA (p<0.05). Conclusion: In evaluating the research results, it was found that the level of amputation had no effect on back, leg, and hand grip strength. In addition, it was found that there was a significant relationship between the participants' leg strength-back strength, back strength-hand grip strength, back strength-height, and hand grip strength-height. It is anticipated that in more comprehensive studies in which 1st and 2nd division amputee football teams may participate, different results will be obtained. Keywords: amputee football, strength, back strength, leg strength, amputation level.

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The influence of hip muscle strength on gait in individuals with a unilateral transfemoral amputation

Cited by 30 publications

References 45 publications

Distribution of joint work during walking on slopes among persons with transfemoral amputation

Distribution of joint work during walking on slopes among persons with transfemoral amputation

Changes in frontal plane kinematics over 12-months in individuals with the Percutaneous Osseointegrated Prosthesis (POP)

Comparison of Strength Parameters in Amputee Football Players According to the Degree of Amputation

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