So I come from a background where every day I would run for 3 miles then follow it up with a half hour of weight lifting. This has caused me to hate my workout routine. I want to switch to walking because I've heard that it is better for fat loss. I've also heard that running is not good for us. Should I switch from running three miles every morning to walking three miles every morning and then follow it up with weight lifting? If so, then why, in other words, what are the benefits of walking over running? Also, if you have some research that could back your answer up, that would be great! Thanks so much in advance
If you follow the Sisson plan, he encourages walking, or very light jogging as opposed to chronic cardio -- but his plan also includes sprinting once a week and 3-4 full body strength sessions a week...
Walking works in that scenario because you are getting the muscle adaptations from your other activities, and the walking is essentially giving you Flexibility and Recovery while keeping you active.
Personally I have 2 hard runs a week (1 sprint session between 100m and 400m; 1 Tempo run -- 30-40 minutes at max effort coupled with 10 minutes warm up/cool down), 2 hard lifts a week, a long run, and 2 recovery runs. That's 5 days a week and 20-30 miles per week.
Walking, in my life, is something I do anyways. We walk as a family before/after dinner (depending on light), walk to the store (a mile away), etc. I do not consider it part of my exercise, just part of my life.
If you hate it then that's all the reason that you need to switch.
I haven't seen an compelling evidence that "running is not good for us", certainly not in the 15 miles a week range. Kurt Harris talks about several studies that show that active marathon runners (those who run 5 marathons or more in 3 years) have a significantly increased occurance of LGE anomolies which "might" indicate arterial damage, and others that demostrate a high rate of mortality in marathon runners.
Harris speculates: "I think that not only does sustained "cardio" not protect you from atherosclerosis, I think it is quite likely that through repetitive shear stress with endothelial damage and promotion of an inflammatory state, that it may promote atherosclerosis and/or direct cardiac muscle damage."
He also observes that runners eat the most horrible diet of refined carbohydrates possible, and that this could also be causal factor in heart disease.
None of this matters, you hate running, so there isn't a compelling reason to do it.
I am sure this is very individual, will just say that I've had far better results with slow movement (yoga, walking, etc) than high impact. I'm a calorie counter (not popular around here, I know!) and my n=1 research shows that I can eat more calories (which is my personal goal, I'm no longer trying to lose weight) with regular, slow movement and very little sitting than I can with the sorts of high impact activities I used to do. I've totally given up tabatas, and was glad to see them go.
I don't think it's a simple matter of how many calories the activity burns, although obviously that matters too. But for me, it seems like if I move enough (and again, spend as little time sitting as possible) my metabolism functions at a higher level.
But would not think that just switching to a morning walk instead of a morning run would do the trick -- you need sustained slow movement through the day, even if all that means is standing more than you sit, taking stairs instead of elevators, etc etc.
I used to run but it beat up my knees. I blame this on running on roads - hard surfaces and the crown causing uneven impact. Walking takes more time but is not as painful. The only big problems have been dry heels and Achilles tendon swelling. Using a walking staff helps alleviate that stress.
I would not combine running and lifting the way you are. In my experience, the recoveries to each stress are more productive if you let your body react to one metabolic stress at a time. Definitely scale down the lifting on running days, and lift heavier or super-set on non-running days. Don't be afraid to run for longer distances more slowly, low stress.