Hi. I am a 60-year-old female who began a program of strength training including weights at the end of May. I do 50 minutes of strength training on Mondays and Thursdays and walk about a mile and a half-ish and do yoga on Tuesdays, Wednesdays and Fridays. I can definitely feel it in my muscles. I had routine blood work done on Wednesday after having done the strength training on Monday and walking and yoga on Tuesday. (Nothing Wednesday before the test). Everything normal except ALT was 138 (mildly elevated) and AST was 63 (also mildly elevated). I have read that exercise can cause this. Does anyone know anything or have any experience with this? I have a follow-up with my PCP on Monday, so not looking for medical advice, but just if anyone else has experienced or knows about this. Thanks!! I have been feeling great, by the way!