If "Hakim Duble" is a specific exercise creator or a variation of a "Double" (Duble) workout:
: Rest for exactly 38 seconds, then perform a 49-second isometric hold (like a plank). 3. Scientific or Medical Reference Hakim-Duble-1138:49 Min
The phrase appears to be a highly specific reference, likely originating from a niche online video (such as a gaming walkthrough, a specific workout routine, or a long-form commentary) or a technical log. If "Hakim Duble" is a specific exercise creator