Rodman and mchenry's hypothesis to account for the success of the bipedal adaptation in early hominids involves mainly:

The hypothesis of Rodman and Mchenry's involves mainly in energetic efficiency moving between patches of forest, to the account for the success of the bipedal adaptation in early hominids.
Habitual bipedalism was not driven by the encephalization, but vice versa. Mchenry pointed out that the theories and origin of bipedalism has a significance and speculative, it is important because they are implicated in differentiation.

Ihaven't done that yet, so no idea,but this is not the right place to ask