What about jupiter in the 6th, I have this placement and I have pretty good stamina and ability to adapt to any work environment. I recover quickly and am strong for my size.
Also more than one peron I know with saturn conj mars have unbelievable endurance. (running, working 12+ hours never looking tired although they say they are, one of them is a boxer another is an ex navy seal (his mars and sat are conj in the 6th house) another is a healer who works 12 hour days never tiring, he has a lot of cancer in the 12th but his mars and sat are conj in the 2nd house)
I would agree with mars in the 1st (but can be a bit accident prone)
as well as mars in the 2nd
mars in the 8th
mars in the 10th or on the mc.
Mars in aries, taurus, gemini, scorp, sag or cap don't seem to tire easily.
Mars conj pluto or conj saturn in any chart would indicate deep sources of endurance and determination (power) In fact, my Linda Goodman book on aspects says any strong aspects between mars and pluto and mars and saturn can mean high pain tolerance a need for a lot of physical outlets for the energy. Like a steam kettle that just boils and boils, or an engine running on a deep deep well of fuel.
Mohammed ali had his mars and saturn conj in taurus.
Venus harshly impacted by saturn can mean someone who is a workaholic to the point where they outpace everyone and can't stop. Like a freak of nature (oprah and bill gates both have venus sq or conj saturn)
I think jupiter in the 6th is one that people have overlooked. I personally thrive in physical labor. The more the better. And I was at one time ranked 12th in the country for long distance running, and I don't think that was just cuz my mars is in the 1st (its not well placed in virgo IMO) I never had an injury.
Saturn mars and pluto work well together in creating a person who has a will and ability to undergo tremendous physical strain in order to reach a
certain goal.
Add to that moon in scorpio or capricorn and that person will overcome any emotional limitations to reach their goal.
If it is a woman, if her moon is aspected by saturn, she may act more masculine and be more interested in brute strength than the soft and feminine. Some successful female athletes have very saturnine/mars influenced charts. (Moon in capricorn or scorpio, capricorn rising etc)
For example the current WR holder for the women's 100m freestyle swimming has a capricorn rising with a moon in cap in the first house.
I gots more examples, but I trust that people believe what I say.