a. the lower back doesn't bend forward very far but the upper back is bending forward (giving a rounded back position) and the subject is not able to touch his toes we have hypo-extensibility of the lumbar erectors.
b. the lower back bends forward but the upper back remains flat (doesn't bend forward) we have hypo-extensibility of the thoracic erectors.
c. the legs flex at the knees we have hypo-extensibility of the hamstrings.
d. the athlete is able to touch his toes we have normal extensibility.
e. the athlete is able to touch farther than his toes we have hyper-extensibility.
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The Tabata workout system is a version of the High Intensity Interval Training program developed by Professor Izumi Tabata as training for Olympic speed skaters in 1996. The results studies conducted on the training program confirm that even a four minute cardiovascular exercise routine improves a persons level of fitness.