Running

It very much depends on the individual and if she's after becoming a slevless and or it works for the two of you to train together in the pool/on the bike/in the gym then go ahead add swimming and biking but I'd probably suggest adding yoga (or pilates although I know f-all about pilates) instead as it'll add a very low impact way of increasing strength and balance in a way that I found to be very complimentary...

Yeah, she has no particular attraction to becoming slvlss in the near future, but since I mainly race triathlons it's a bit easier for her/us if she adds swim and bike to her regime. Yoga is a good shout, we're moving house at the end of the month and she's already started googling yoga classes nearby.