top | item 44125940 (no title) patentatt | 9 months ago What's the issue with carbon-plated shoes? discuss order hn newest cratermoon|9 months ago Elite runners can knock about 2 minutes off their marathon time. Studies show about a 2% improvement in times, the downside is increased injury. germinalphrase|9 months ago They return energy (like a spring) providing mechanical assistance to the runner.
cratermoon|9 months ago Elite runners can knock about 2 minutes off their marathon time. Studies show about a 2% improvement in times, the downside is increased injury.
germinalphrase|9 months ago They return energy (like a spring) providing mechanical assistance to the runner.
cratermoon|9 months ago
germinalphrase|9 months ago