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Assessing Gait Stability and Symmetry in Lower-Limb Amputation through Trunk Accelerations

This study analyzes upper-body accelerations in subjects with lower-limb amputations, focusing on gait features such as stability, harmony, and symmetry using a straightforward quantitative method. Despite extensive research on healthy elderly and neurological populations, the application of accelerometry in lower-limb amputees remains sparse. We evaluated four groups including unilateral transfemoral and transtibial amputees, revealing significant differences in stability, harmony, and symmetry, particularly noting lower laterolateral harmony in transtibial amputees. This pioneering study highlights the impact of amputation level and prosthesis type on gait characteristics.

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Assessing Gait Stability and Symmetry in Lower-Limb Amputation through Trunk Accelerations

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  1. Assessment of gait stability, harmony, and symmetry in subjects with lower-limb amputation evaluated by trunk accelerations Marco Iosa, PhD; Francesco Paradisi, MSc; Stefano Brunelli, MD; Anna Sofia Delussu, MD, PhD; Roberto Pellegrini, CPO; Daniele Zenardi, CPO; Stefano Paolucci, MD; Marco Traballesi, MD

  2. Aim • To analyze upper-body accelerations in subjects with lower-limb amputation using a simple technique for quantitatively assessing their features of gait, such as stability, harmony, and symmetry. • Relevance • Despite growing literature on elderly healthy populations and neurological patients, few studies have used accelerometry to investigate these features in subjects with lower-limb amputation.

  3. Method • Enrolled 4 groups of subjects with unilateral lower-limb amputation: • Transfemoral amputation with locked knee prosthesis. • Transfemoral amputation with unlocked knee prosthesis. • Transtibial amputation. • Healthy subjects.

  4. Results • Statistically significant differences for stability, harmony, and symmetry of walking. • Lowest laterolateral harmony in subjects with transtibial amputation.

  5. Conclusion • This was the first study to: • Investigate upper-body acceleration of subjects during walking who were evaluated upon dismissal from a rehabilitation hospital. • Differentiate sample in terms of level of amputation and type of prosthesis used.

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