Running-specific prostheses reduce lower-limb muscle activity compared to daily-use prostheses in people with unilateral transtibial amputations

Sepp, Lauren A.; Nelson-Wong, Erika; Baum, Brian S.; Silverman, Anne K.

doi:10.1016/j.jelekin.2020.102462

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…For prosthetic gait rehabilitation, the sprinting gait profile obtained using a prosthesis could aid in designing a target standard for new individuals with amputation to train their sprinting or running as part of their gait training. In individuals with amputation, the ability to sprint is restored to a limited extent using running-specific prostheses [4]. However, biological differences due to limb loss between individuals with and without amputation still exist and contribute to gait differences [5].…”

Section: Introductionmentioning

confidence: 99%

Sprinting performance of individuals with unilateral transfemoral amputation: compensation strategies for lower limb coordination

Kobayashi

Hisano

et al. 2023

R. Soc. open sci.

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Understanding the sprinting patterns of individuals with unilateral transfemoral amputation (uTFA) is important for designing improved running-specific prostheses and for prosthetic gait rehabilitation. Continuous relative phase (CRP) analysis acquires clues from movement kinematics and obtains insights into the sprinting coordination of individuals with uTFA. Seven individuals with uTFA sprinted on a 40 m runway. The spatio-temporal parameters, joint and segment angles of the lower limbs were obtained, and CRP analysis was performed on thigh-shank and shank-foot couplings. Subsequently, the asymmetry ratios of the parameters were calculated. Statistical analyses were performed between the lower limbs. Significant differences in the stance time, stance phase percentage, ankle joint angles and CRP of the shank-foot coupling ( p < 0.05) were observed between the lower limbs. The primary contributor to these differences could be the structural differences between the lower limbs. Despite the presence of different coordination features in the stance and swing phases between the lower limbs, no significant difference in the coordination patterns of the thigh-shank coupling was observed. This may be a compensation strategy for achieving coordination patterns with improved symmetry between the lower limbs. The results of this study provide novel insights into the sprinting movement patterns of individuals with uTFA.

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Section: Introductionmentioning

confidence: 99%

Sprinting performance of individuals with unilateral transfemoral amputation: compensation strategies for lower limb coordination

Kobayashi

Hisano

et al. 2023

R. Soc. open sci.

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Hip Joint Contact Loading and Muscle Forces During Running With a Transtibial Amputation

Sepp

Baum

Nelson-Wong

et al. 2021

Journal of Biomechanical Engineering

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People with unilateral transtibial amputations (TTA) have greater risks of bilateral hip osteoarthritis, related to asymmetric biomechanics compared to people without TTA. Running is beneficial for physical health and is gaining popularity. However, people with TTA may not have access to running-specific prostheses (RSPs), which are designed for running, and may instead run using their daily-use prosthesis (DUP). Differences in joint loading may result from prosthesis choice, thus it is important to characterize changes in peak and impulsive hip joint contact loading during running. Six people with and without TTA ran at 3.5 m/s while ground reaction forces, kinematics, and electromyography were collected. People with TTA ran using their own RSP and repeated the protocol using their own DUP. Musculoskeletal models incorporating prosthesis type of each individual were used to quantify individual muscle forces and hip joint contact forces during running. People using RSPs had smaller bilateral peak hip joint contact forces compared to when wearing DUPs during stance and swing, and a smaller impulse over the entire gait cycle. Greater amputated leg peak hip joint contact forces for people wearing DUPs compared to RSPs occurred with greater forces from the ipsilateral gluteus maximus during stance. People with TTA also had greater bilateral peak hip joint contact forces during swing compared to people without TTA, which occurred with greater peak gluteus medius forces. Running with more compliant RSPs may be beneficial for long-term joint health by reducing peak and impulsive hip loading compared to DUPs.

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Running-specific prostheses reduce lower-limb muscle activity compared to daily-use prostheses in people with unilateral transtibial amputations

Cited by 2 publications

References 29 publications

Sprinting performance of individuals with unilateral transfemoral amputation: compensation strategies for lower limb coordination

Sprinting performance of individuals with unilateral transfemoral amputation: compensation strategies for lower limb coordination

Hip Joint Contact Loading and Muscle Forces During Running With a Transtibial Amputation

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