Training frequency is how often you hit a muscle group or lift each week. Higher frequency splits the same weekly volume across more days, which can improve technique practice and reduce soreness per session. Lower frequency packs more volume into fewer days—fine if recovery allows.
For most lifters, each major pattern two to three times per week works well (e.g. squat pattern Monday and Thursday). Beginners often thrive on three full-body sessions. Intermediate programmes might use upper/lower splits four days per week.
If you add a day, keep an eye on total weekly volume—frequency helps until you accidentally double-count sets and under-recover. Sleep, steps, and stress change how many hard days you can sustain.
Try this: Match frequency to your schedule first, then distribute weekly sets evenly. If performance or sleep worsens after raising frequency, return one day of volume to a rest or easy cardio day.