I am a female. 49 years old. Been running the last 4 months. Started doing 2/1 intervals. Run in zone 2 minutes walk 1 minute and on for 30 minutes. At the end I ran hard and my chest began to tighten. Heart rate was 166. When I stopped it went away. Ran
Likely odd. If only one time , then probably an oddity. You should be watching your heart rate monitor. Be sure you are properly recovered each set. Should only do these 1 x week. Mix easy distance in with the week's plan. What is the goal and your background ? may ask running club for advice, or coach. Good luck. (USAT Level I certified coach)
Hmmm. Not knowing anything more bout you, is hard to be specific. Assuming you r a healthy 49 y/o woman on no meds for chronic diseases, non smoker, no family hx of premature heart disease, it is unlikely that this represents heart disease, BUT, w/ a symptom of chest tightness, at this high high rate u shud see your doc to be evaluated, & have a regular stress test pushing to u to your max heart rate.