That was my experience as well. After having to give up running because of damaged knee, I took up swimming. At the time I was rail thin as I was doing marathons and 1/2 marathons. After swimming five days a week for about 4 to 6 months I noticed that the garbage I carried out weekly was definitely lighter and my collar size went up by .5 inch. Makes sense as my upper body was trash with just running. My weight did go up but not a lot and when I did more yard work in the spring, summer and fall it fell off by about 1/2 the gain.
I really think that swimming is the best balanced, low impact exerzise available to us aging athletes. I took up swimming when I was 58 and have been at it for about 23 years. TI for about 15.
Thank you Terry.
May we swim with ease at the speeds we choose.