Hi guys Not finding my strength training very effective. Can anyone advise some good routines? Currently do 3 runs a week, one is a long run. Also some hill repeats, and a swim. Training for a half marathon. Am a 31 year old female. Looking to do 2 or 3 strength workouts a week, or whatever people think will be effective. Have lose weights and a fitness ball in my armoury! Thanks for your help.