Having been a lifelong health nut involved in weighttraining(15 years) and shorter duration conventional gym cardio(elliptical trainers, treadmills, etc.) I had stumbled upon information by Dr.K amongst others that claimed "endurance exercise" decreased telomere length and that Lance Armstrong(a notable representative of the cardio crowd) was a case in point of the deleterious health conseqeunces of long duration cardio.
My question is this: What amount of endurance exercise if any should one involve oneself in? What length should the sessions be and what intensity(% of HRM or RPE?)? I find that now, walking for 2x30 minute sessions per day(usually every 12 hours approx.) that I don't have the 'wind' I used to doing intense 30 minute sessions on an elliptical trainer. ALso I have forgone the act of sweating(walking can be hard to work up a sweat..) which I feel beneficially serves to detoxify the body.
I have read that sprinting is recommended but have an aversion to the act. I prefer a jog-trot or steady run. Why would doing endurance exercise have this effect? Would walking to this extent be better substituted with a few sprints?
Researchers in Homburg, Germany showed that 50-year-old men who ran more than 50 miles per week at a fast pace had telomeres (chromosome caps) that were almost the same length as those of 20-year-old runners on the German National Team, and more than 40 percent longer than those or inactive men of the same age Assuming this data has anything to say about endurance exercise would it be wise to speed up the pace a little?? Who out there opines that endurance exercise is beneficial and who doesn't? Why?
With regard to weight-training: What amount should be done(based on peoples experience and in light of their research)? I have been doing a steady 6 out of 7 sessions per week and have experienced no problems as yet. Should I increase them maybe and simply keep the sets and reps lower but on balance increasing volume? What do YOU do for weight-training?