Reps (Repetitions)

Formula

Example

"3 sets of 10-12 reps" is normalized to 3 x 11 = 33 planned reps. If you log 3 x 12, actual volume is 36 reps (+9%).

How Afitpilot Uses This

Reps feed into volume (sets x reps) and tonnage (sets x reps x weight). We parse prescriptions carefully: integer, range (midpoint), per-side (x2), and filter out time-based, AMRAP, and EMOM values. If we can't parse a rep prescription to a number, it's excluded from planned totals but actual logged reps still count.

Rep ranges, what they actually mean

Known Limitations

• •Partial reps, forced reps, and cheat reps are counted the same as full ROM reps. Range of motion quality is not captured.
• •The midpoint normalization for ranges is a convenient approximation but not always representative of athlete intent or behavior.

What We're Improving

• Future

  Time-Based Volume Equivalents

  Convert time-based exercises (planks, carries, isometric holds) into a volume-equivalent metric so they stop being invisible in session totals. Likely a time-under-tension proxy.

Science Context

Rep ranges loosely map to training adaptations: 1-5 for maximal strength, 6-12 for hypertrophy, 12-20+ for muscular endurance. These ranges have significant overlap and individual variation, and the notion of strict "rep range zones" is increasingly viewed as an oversimplification in modern exercise science.

Related Terms

• Volume (Total Reps)The total number of repetitions performed in a session, aggregated across all exercises. Volume is the most fundamental "how much work did you do?" metric.
• SetsA set is one continuous bout of exercise, the number of times you perform a group of consecutive reps before resting. Sets are the fundamental building block of every workout prescription.
• Compound vs Isolation ExercisesCompound exercises move multiple joints and recruit multiple major muscle groups in one rep (squat, deadlift, bench press, row, overhead press). Isolation exercises move primarily one joint and target a single muscle group (curl, leg extension, lateral raise, calf raise). Almost every strength program is built from a small number of compound lifts driving the bulk of the stimulus, with isolation work added to address weaknesses or directly target a specific muscle.
• Rep RangesThe traditional grouping of repetitions per set into broad training zones: low reps for strength, moderate reps for hypertrophy (muscle growth), and high reps for muscular endurance. Rep ranges are the most common way coaches communicate intent, "5x5", "3x8-12", "2x20" each implies different load, rest, and adaptation goals.
• Training DensityHow much work you fit into a unit of time. Density combines volume (or tonnage) with session duration into a single "work per minute" number, useful for comparing a fast circuit-style session to a slow heavy strength day, and for spotting when rest periods are drifting longer.