Lower limb prostheses have been instrumental in enhancing the quality of life for individuals with amputations. Studies have indicated that different types of prostheses—passive, quasi-passive, and active—affect biomechanics, physiology, performance, and subjective experience of users.

Biomechanical Benefits

Prostheses improve overall stability and balance by replicating the natural movement of a limb. For example, as noted in Arifin et al. 2014a, the Talux foot provided greater stability compared to the SACH foot when evaluated in various standing conditions.

Physiological Benefits

Using advanced prostheses, such as the Pro-Flex foot, has shown an increase in energy return and range of motion. Childers et al. 2018 found that the Pro-Flex foot led to increased range of motion and energy efficiency during treadmill walking.

Performance Benefits

Active and quasi-passive prostheses can help users perform daily tasks more efficiently. For example, the BiOM prosthesis demonstrated higher walking speeds and better agility compared to current passive prostheses, according to Ferris et al. 2012.

Subjective Benefits

User satisfaction often increases with the use of advanced prostheses. Preferences for active prostheses over current passive ones have been noted by users, as indicated by user satisfaction scores in studies like Ferris et al. 2012.

Conclusion

While the advantages of lower limb prostheses are multi-faceted, the types of prostheses play a significant role in enhancing the quality of life in the short-term. Quasi-passive and active prostheses are generally favored over passive ones. Further research should assess the long-term benefits of these devices to provide deeper insights and better solutions for those in need.

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