Classic Warmup is exactly what the name promises: the standard-issue, goes-with-everything preparation routine. Shoulder rolls, arm circles, twists, side leg raises, march steps and step jacks - 10 reps each, one pass, no equipment, no decisions to make. It is the warmup you reach for when the workout could be anything, because everything it readies - shoulders, spine, hips, legs, heart rate - is on every workout's guest list.

The sequence descends and then accelerates. Shoulder rolls and arm circles start at the top with the joints most training loads first, working from small rotations to full sweeps. Twists rotate the spine against planted hips, waking the mid-back that connects upper and lower body work. Side leg raises shift the attention to the hips, loading each side's balance briefly while the outer hip muscles switch on. Then the pace lifts: march steps bring the rhythm and knee drive, and step jacks close by combining legs and overhead arms into the first genuinely whole-body movement of the day - your pulse arriving at the workout's doorstep just as the warmup ends. Simple things in the right order is the entire method, which is how classics earn the title.

Roll the shoulders through their full circle - up, back, down - rather than shrugging in place. Keep the arm circles long and change direction halfway. Twist from the ribcage with hips facing forward. In the side leg raises, stay upright and lift strictly sideways; leaning into the standing hip cancels the exercise. March tall, then step the jacks wide with a complete overhead reach so the finish is honest.

Some routines survive because nothing simpler works and nothing fancier is needed - this is one of them, and your first working set will co-sign.

Make it Harder: The workout after it is the hard part - if you want more ramp, run the last two exercises a second time.

Make it Easier: Hold a wall for the side leg raises and cut everything to 5 reps.