| Budget Amount *help |
¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2015: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2014: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
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| Outline of Final Research Achievements |
The goal of this project is to provide biomechanical evidence of running-specific prosthesis for individuals with lower extremity amputation (ILEAs). Three-dimensional motion analysis with inverse dynamics was used to quantify kinetics and kinematics during maximal sprinting in ILEAs. Further, we developed a database for spatiotemporal data of ILEAs using publicly-available Internet broadcasts. The average speed, step length, and step frequency for each ILEA sprinter in 100- and 200-m sprints were calculated using the number of steps in conjunction with the official race time and distance (n=1277). We found that propulsive impulses of ground reaction forces generated by the prosthetic limb, rather than the intact limb, may be the key parameter for achieving greater sprint velocity in ILEAs. For the second approach, we also found that spatiotemporal parameters in ILEAs vary according to amputation levels, sex, ethnicity and competition level, but not to body height or amputation side.
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