I can pretty much provide my recent experience in this.
Before I started HRT and during the initial steps I did 8-10 km runs 4-5 times per week. I continued to do so after I started HRT and apart of some days when my energy was just down, I did not notice that much difference. Then I realised that I am really overdoing this and burning down all the fat which I had consumed and thus HRT was not having any effect in terms of fat redistribution. So, I paused and overdid with that too

. I got A cup bewbs and some adjustments in other parts to the extent that I realised that I MUST resume my exercises.
We had increased humidity and temperature during the last days, so I took my chances

The first day was terrible – I barely finished my distance and my legs hurt for days, and I had to take 4-5 pauses (I usually take one or none). Saturday was OK – apparently, I had gotten back into shape, my legs did not hurt, I finished the distance and took no stops. BUT... I realised that I am running slower. My output had dropped, my endurance and stamina remains the same, but I cant run as fast as I could. I also cannot dash anymore, when I want to outpace someone or increase the distance between me and someone else. I feel like I do not have enough energy for this and just keep going on my slower pace. On a brighter note - when someone outpaces me, I just dont care anymore
Quote from: Dreams2014 on August 05, 2013, 05:37:34 AM
I don't understand this. Why would HRT mean you're unable to exercise in extreme heat? This seems like a huge disadvantage.
Well, that is one of the consequences of being a woman

. We can exercise, but it will be harder and performance will decrease as a consequences of the HRT. Men and women are pretty much the same when it concerns endurance and stamina – in fact women are even better – but anything which requires strenght, speed, energy bursts – those effects are granted by testosterone and we all aim to suppress it