What do you mean by "end of a loop"? What loop? If you just want to reverse the order of the elements produced by strsplit, use flip:
>> s = 'a,bc,def,g'
s =
'a,bc,def,g'
>> z = strsplit(s,',')
z =
1×4 cell array
{'a'} {'bc'} {'def'} {'g'}
>> flip(z)
ans =
1×4 cell array
{'g'} {'def'} {'bc'} {'a'}
