Japanese Interval Walking Training.
https://pmc.ncbi.nlm.nih.gov/articles/PMC2805369/pdf/tjp0587-5569.pdf
Document(s):
Kelley Graham's UnCarved Block Program
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Japanese Interval Walking Training.
https://pmc.ncbi.nlm.nih.gov/articles/PMC2805369/pdf/tjp0587-5569.pdf