Don't stop an animation of nordic walking

I made 32 figures for nordic walking in Poser that I imitated one step with left and right leg. This you can see here: http://lebinca.com/pose_gibanje_poser_30608.PNG. Must I do several series of 32 figures or is enough one. I have noticed that my avatar goes some steps than stop and only slip. I use Animation overrider (AO) ZHAO. I thing that is because I did to little of animation. How can I resolve problem in Poser that my animation of nordic walking will go all the time without sliping.

When you uploaded the animation to SL, did you check the Loop box?

Thank you for your help. Without this help I can't do that. The movie about nordic walking you can watch: http://239.gvs.arnes.si/advertise-nw/index.htm