The ISB currently supports these technical groups:

3-D Analysis of Human Movement

http://www.geocities.ws/3d-ahm/

Technical Group on Computer Simulation (TGCS)

http://isbweb.org/~tgcs/

Footwear Biomechanics Group

http://www.footwearbiomechanics.org

International Shoulder Group

http://internationalshouldergroup.org/