Arms are really the only concentration day I have left and I won’t pretend to make up a functional fitness reasoning for it. I’ve always loved my arm day and have decided to stick with it even after the rest of my program has evolved away from those body building type training days. It is common to hear that good grip strength is a hint at the type of fitness condition an individual is in. Incline Dumbbell Curls: 3x10, the seated position prevents you from getting too much of a swing into the repetition and the positioning of your arms allows for a more elongated eccentric of the bicep. Dumbbell Skull Crushers: 3x10 skull crushers are already great but using dumbbells for them (like for many other exercises) prevents over compensation of the stronger arm. Neutral Grip Bicep Curls: 3x10 I throw neutral grip curls into arm day because they hit my arms a little differently than a standard curl — they shift more focus onto the brachialis and forearms, which really carries over into grip strength. Since I care about having a strong, capable grip as one of those underrated health markers, this movement just makes sense to keep in the rotation. It's also easier on my wrists and elbows since I'm not twisting into a fully supinated position, so I can push the weight and reps without any nagging joint irritation. Plus it just feels like a natural complement to my other curl variations rather than something redundant — each one is building a slightly different part of the arm. Overhead Dumbbell Tricep Extension: 3x10 I keep overhead dumbbell tricep extensions in the rotation because the overhead position puts the triceps under a deep stretch that I just don't get with pressdowns or kickbacks, and that stretch under load is huge for actually building the muscle, especially the long head. Since arm day is my one indulgence workout, I want to make sure I'm hitting the triceps from an angle that other movements in my routine aren't already covering. It also carries over into overhead pressing strength and shoulder stability, which ties back into that overall strong-arms-equals-healthy-indicators mindset I have. It might overlap a bit with skull crushers, but the angle is different enough that I still feel like it earns its spot.