Hey Thomas,
Thanks for your speedy response. Seeing a cardiologist does sound like a good idea, just to be sure. Lab test is on the cards for when i’m not in lockdown anymore so will follow that up also.
Re my training history I probably should have been clearer before. I have dabbled with structured training on and off for the last few years but outside of that I have been running, rock climbing, winter/ice climbing, alpine climbing and hiking for about the last 10 years. Most of this has been in the UK so winter climbing / hiking in Scotland and rock climbing across the UK but I have also been to the Alps regularly for summer alpine climbing and then to Cogne for the last few years for icefall climbing. Ive also done a couple of expeditions; one into the Central Alaska range and one to Kenya. Running wise I have dabbled with fell running for a few years and have completed distances up to around marathon length before with one 12h relay/lap ultra under my belt.
Since March I have been in lockdown in Wales so have had the time and terrain to focus on structured training for longer distance hilly endurance events such as a hilly 50K or the Welsh 3000’s (40km, 3000m ascent) hence why I have been reading up on the aerobic training along with increasing my weekly volume up to what is now c.8h. I feel fine with the increased volume to be honest. Have increased volume gradually over time and the increased amount of Z2 training seems to be easily absorbed, likely helped by many years of being fairly active and ‘hill fit’.
