The bonus trait provided is High Metabolism which makes it easier for these Sims to stay in shape. The Aspiration I chose for my Sim was Bodybuilder, the only one available in the Athletic category.
Since Gluteus has the Bro trait he can get the Hangin' with Bros Moodlet when another Bro is nearby. Oh, yeah - female Sims can actually choose the Bro trait which is.weird. But, it's not a sure thing like getting Energized from drinking Energy Juice. If you opt to go the non-career route, your Sim may also spend time outdoors collecting rocks, frogs, and fishing to earn some extra money, so the extra buff is always nice. Active Sims can also Pump Up other Sims (if you just envisioned the old SNL Hans and Franz skits, then I'm right with ya).
Active Sims regularly get Energized which is the ideal emotional state to maximize skill gain for Fitness. Active - This is the clear no-brainer.You can now set your skill level with t_skill_level skill_fitness x (fill in 1-10) - we also have a full listing of Skill Cheats and a master list of Cheats in The Sims 4 Press Control + Shift + C then type testingcheats on and press enter.
