Looking for a confirmation of the following statements:
There are 2 variations of FX HeSPUs:
1. elbows close to the body (narrow grip)
2. flaring elbows (wide grip)
Both are correct. (1) is good prep-work for 90deg push-ups, (2) is good prep-work for SR HSPUs.
I am also interested what are the differences in muscle-activation in these exercises?