How do you build muscle behind the shoulders?

[my bfg]

hi my neds 14 now and i cant seem to keep muscle behind her shoulders any more. we are generally happy hackers and dont do much schooling. but i would like to build this area back up again, anybody got any tips?

 

[pip6]

Start with checking the saddle fit. Atrophied muscle (or failure to build it) could be a sign of pressure.

 

[jofwigby]

A good strapping to get her muscles warm before lots of hill work !

 

[my bfg]

thanks for the replies

her saddle is checked twice a year so hoping thats not a problem

no hills round this way, might have a build one lol