Quote:
Originally posted by ThrillBilly
even non runners understand what the significance of a marathon is, and the TDF is basically like running 20 marathons in 30 days.
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Dr. Ken Cooper in his book on aerobics equates one mile of running to six miles of cycling, so a 156 mile (253 km) TdeF stage would be the equivalent of running a marathon.
All things being equal, cycling places less impact stress on the body, allowing the riders to perform the equivalent of a marathon (more or less) every day whereas the mountain stages would absolutely kill a runner!
We have an event up here in Alberta called the Canadian Death Race where runners attempt to finish a 125 km course over 3 mountain summits and one river crossing with 17,000ft of elevation gain. The record is 15 hrs 45 mins.