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Hiroaki Hobara

As seen in: Nature, Memory Studies, PLOS ONE
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Articles

Mediation of the mediolateral ground reaction force profile to maintain straight running among unilateral transfemoral amputees - Scientific Reports

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By Hiroaki Hobara
| Nature Verified
Abstract The mediolateral ground reaction force (M-L GRF) profile that realizes a symmetrical mediolateral ground reaction impulse (M-L GRI) between both limbs is essential for maintaining a straight movement path. We aimed to examine the M-L GRF production across different running speeds in unilateral transfemoral amputees (TFA) to identify strategies for maintaining straight running.
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Innovative alignment of sprinting prostheses for persons with transfemoral amputation: Exploratory study on a gold medal Paralympic athlete

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By Nicola Petrone, Hiroaki Hobara, Ryu Nagahara, Gian Luca Migliore
| SAGE Publishing
1. Morrien, F, Taylor, MJD, Hettinga, FJ. Biomechanics in Paralympics: implications for performance. Int J Sports Physiol Perform 2017; 12: 578–589. Google Scholar | Crossref | Medline 2. Zahedi, MS, Spence, WD, Solomonidis, SE, et al. Alignment of lower-limb prostheses. J Rehabil Res Dev 1986; 23(2): 2–19. Google Scholar | Medline 3. Yang, L, Solomonidis, SE, Spence, WD, et al. The influence of limb alignment on the gait of above-knee amputees. J Biomech 1991; 24: 981–997.
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Effect of step frequency on leg stiffness during running in unilateral transfemoral amputees

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By Hiroaki Hobara, Hiroyuki Sakata, Yuta Namiki, Genki Hisano
| Nature Verified
Abstract Spring-like leg behavior is a general feature of mammalian bouncing gaits, such as running and hopping. Although increases in step frequency at a given running speed are known to increase the stiffness of the leg spring (kleg) in non-amputees, little is known about stiffness regulation in unilateral transfemoral amputees. In this study, we investigated stiffness regulation at different step frequencies at a given running speed in unilateral transfemoral amputees.
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