[svandamme]

now i bought a bicycle, because i need to get in shape
back hurts from no exercise and a sitting life, no stamina
the usual "haven't done anything in 15 years and it's paying dividend"

after 1 week of cycling every day
not much, just 7-10 km a day , usually in 2 runs
my back hurts less

great

but my legs seem to be getting weaker, first runs i was really gunning it , good pace the whole way round, now i'm down a lot in average speed, simply because the legs give out before i get up to some serious sweat.

what gives? how long till muscles actually get better
and i can do some more distance, and get a better cardio exercise out of it???

should i give it a rest for a few days?
force it anyway?
more sprints a day?

it's just annoying, i can hardly walk after i just did a run, no strenth left...and the improvement is just not there...