The middle gear problem
Ask most people to go easy and they will settle at roughly 75% of their maximum heart rate — hard enough to accumulate fatigue, easy enough to produce almost no adaptation. It is the worst of both.
Endurance sport worked this out decades ago. Strength and conditioning gyms, on the whole, have not.
What we changed
Forty members tested their thresholds properly rather than using the 220-minus-age formula, which was wrong by more than ten beats for over half of them. Two sessions a week were then capped at the bottom of zone two, with a coach enforcing it.
The complaints in week one were universal. By week five nobody wanted to give the sessions up.
The result
Across twelve weeks, average four-minute row distance improved by 4.1% in the capped group against 1.3% in members who kept training as they were. Reported session soreness fell in every single case.
Nobody trained harder. Several people trained noticeably easier.


