Quote:
Originally Posted by TheSutterDynasty
I think we're talking about people who do both. I run a few races a year and run a ton and maintain my strength routine of ~8.5 hours per week. The pervasive belief is that strength training that much will negatively effect your running and I think that both blankall and I agree that as long as you don't gain fat then it will not.
I think he's alluding to bulking in his post. Ie people who want to gain muscle "overfeed", which would lead to gains in fat mass and reduce running performance. But there is no evidence that overfeeding increases gains in fat free mass other than water content in both sedentary and resistance trained individuals ( https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5786199/). I'm unaware of a study looking at raw strength (ie 1RMs) for overfeeding but as far as I know no evidence exists for it helping that either.
Edit: I lied. One of the studies in the review did look at strength differences and found no significant difference https://www.ncbi.nlm.nih.gov/pmc/art.../#!po=0.510204 |
I don't agree. Any kind of mass gain, including muscle will affect your endurance. Once again I'm talking about people who have been training seriously, not your average couch potato.
Running long distances (10km+) regularly will also cause your body to release hormones that will affect your ability to gain muscle.
For me, in find that if my bodyweight gets above 160lbs, no matter how lean I am, my runtimes all increase. Even distances as low as 800 meters will increase by a few seconds.