I'm 20 5'8 or 5' 9" and currently a sad 145 lbs...
I'm probably an ectomorph and I have a hard time keeping weight on. When I do sit at about 155-162 lbs which is probably when I feel stronger I lose quickness. My vertical always stays about 30- 32 in. even from the time I was 5' 7" 135lbs (my base weight without lifting) my frosh year in HS in 2003-04. In fact I may have even jumped a little higher then. So even as I have gained 20 lbs of muscle at 5-8% body fat my vert stays the same or decreases. I get faster and stronger but my explosiveness and agility goes down.
I don't seem to be physically maturing very quickly and I look about 17 yrs old right now. Not a problem though because my dad has always looked about 10 yrs younger than he really is and didn't stop growing till his mid twenties. Doctors have always said I'll top out at 5' 10" or 5' 11" so not too worried.
Anyway my question is, how can I keep weight on while maintaining quickness and increasing explosiveness? I'm very quick and have good basketball speed but everytime I start to run playing ball I drop 10-12 lbs... I start to look really lean. I'm super shredded but too lean.
Even if I eat the same amount of food which is a hella of a lot anyway. Just looking for some lifting and eating tips for bball. When I bodybuild I gain weight but lose much agility.