I can give you neither a yay, nor a nay, however, I can at least offer some anectdotal evidence, and a question to help guide your investigations:
- I swam with two groups who regularly did pull-ups, one in high school, one post-college. Of that group, each of the 5 guys who could swim faster freestyle than me could do more pull-ups than I could. They also had skinnier legs than I did.
- Of those guys who could do more pull-ups than I, not a single one could get within about 40 lbs of my ability to do lat pull-downs. FWIW, only 1 could beat me in 100 yards of backstroke.
- I would submit that unless you are built like a 12-year old girl, comparisons to said 12-year-old girl could result in poor conclusions
Why not try doing pull-ups for 6 weeks and see what happens?
regards,
r.b.
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