Weight Loss Challenge

[djansen]

No resistance training. I never got into it although did it when I was in rehab after surgery for a herniated disk.

From a weight loss standpoint as well as overall health standpoint if would definately be in your best interest to start resistance training. Your goal in healthy weight loss should not only in dropping lbs but maintaining and at some point adding lean body mass.
Also, if you look into studies of weight training vs aerobic cardio the results in regards to fat mass lost, strength increase, and VO2 will surprise you.
And fyi, bouts of high intensity interval cardio is being shown to be FAR more effective and study after study is proving this.