Was Samson a muscle bound hulk?
In every depiction on screen or comics I had ever seen, Samson was always represented as large and greatly muscle bound. Like a body builder or giant strong he bounds into combat. Even in Jewish tradition, he is said to have four foot wide shoulders and be able to jump from one mountain to another in a single bound. In these broadly accepted the implied interpretation is that Samson's blessing from God was an increased natural potential for strength within, or close to, the natural scope.
But as many who've read the story in the scripture may have realised this is not likely to be the case.
Throughout the story, no character makes mention of his robust appearance nor treats him differently which one might think people would if he was a walking mountain.
In fact, in Judges 16:5 the Lords of the Philistines ask Delilah if she can discover the "secret of his great strength" which one would not do if the answer was obvious I.e. "his huge muscles". These lords are also given solutions to defeat Samson which imply his strength is magical in nature and can be mystically undone with seven fresh bow strings , new ropes that have never been used or weaving his hair into a loom, they believe this conjecture enough to act upon it.
Additionally, the feats Samson achieves through the empowerment of the Holy Spirit are not really any more possible for 'the world's strongest man' as they would be for it's weakest. The most well-trained knight or samurai wielding a masterwork blade may be able to defend themselves against even up to a dozen assailants, let's go crazy and say two dozen, but Samson, un-armoured and all but unarmed, takes out a thousand armed warriors in one encounter, and an encounter in which they are not ambushed or unaware but intentionally trying to apprehend or kill him. The point being no mere human, no matter how trained or, could achieve such a feat, and even emerge apparently uninjured.
So, in I believe his appearance was unremarkable in regards to his physique.
Really One thousand men?
Some have wondered whether the translation of the source text is completely correct, the word for one thousand in Hebrew (אָ֫לֶפ) does rarely have other meanings, like family, clan, and division, so some have argued this could be a word which implies a military grouping, like a battalion. The same way Romans used Centurion for an officer who "usually" command one hundred men (cent, or course meaning a hundred), but they didn't always, some had a little less but others, senior Centurions had command of cohorts without taking on a different title.
The point being that, even if this word was a designation of a military group, and the Hebrew root of the word was linked to their word for one thousand, one would not expect the number of men to be so few that a mere man could kill them all. I discuss this argument, but I must point out, it is a very weak standpoint anyway as the use of the word "eleph" (אָ֫לֶפ) doesn't really allow for any interpretation but the number one thousand in this context. Personally, I doubt it was one thousand to the dot, as the Bible often uses rounded figure for things as we do in everyday life.
In this diagram that I did to help me visualise the scale you can see the thousand Philistines facing off against Samson.