what version of houdini was used in the muscle tutorials?
I have 9.5,the free version.
I can't find “muscle anchor” anywhere in the software.
please help.thanks.

I think the tutorial was done in Houdini 8.2. But anyhow, that “muscle anchor” object is just a regular Null object that is used as an helper. In the supplemental files (part1_start_file.hip), it's already created for you. Offhand, I think the problems with using the tutorial in H9.X are:
- The muscle profile parameters have been replaced with “Handle” parameters. You can press Enter with the muscle object selected and use the handles to control their shape now.
- The “pose” tool hotkey is no longer ‘s’. Use the translate(t)/rotate(r) keys instead to move objects.