Oldman training recovery woes
I am 54 and normally ride with a heart rate monitor. I noticed some days I cannot get my heart rate up past "warm up" and I fell very sluggish. I tend to shorten those rides and slow the pace way down. Other days my heart rate sits in zone 4/5 and I can hammer. Why the difference? I am guessing it is recovery time.
Any suggestions on recovering at an older age?