During the high interval phase, can I do it in a high intensity but low resistance? or the resistance should be also high to be more effective in fat burning?
I've been doing HIIT on elliptical machine and after 5 to 8 cycles of work I felt my legs are sore and couldn't finish the whole workout anymore. Plus I don't want to develop or have huge muscle on my legs, thigh.
So can I do the high intensity phase at a fast speed but low resistance? Will it still be called HIIT? Will the fat burning process still be effective?