Exercise Advice

Hey guys, I’m new to MFP and am managing to keep to my calorie count, but not sure if my exercise is enough.

I can’t run due to shin splints, so I currently I power walk (about 6.5km an hour speed) for 45 minutes (4-6 days a week) and also do about half an hour of working out at home including free weights, crunches, squats and lunges (4 days a week).

I’d love to know if this is enough to assist in my weight loss (3bs a week) and also toning up – legs/arms/stomach or if I should be doing anything more?? I am not a gym person so anything I do needs to be able to be done at home etc.

Any advice would be greatly appreciated!!!

Cheers.