I started the starting strength program at the start of May and I've seen some great gains in all of my lifts, slowing down a little bit now but probably just need to eat more. One thing i did notice though is that my cardio/endurance is now horrible. I played soccer for about 5 minutes and felt exhausted, swam across a river (about 40 feet) and was worried I was gonna pass out. I was wondering if anyone w/ starting strength experience has any tips for cardio to add into the program. Off days when I'm not in the gym or maybe have one day a week doing higher rep workouts? Thanks in advance