The plan uses a few words that nobody explains. Here they are.
- Rep
- One time through a movement. One squat down and up is one rep.
- Set
- A group of reps done back to back. "3 × 10" means 3 sets of 10 reps.
- Rest
- The break between sets. Bigger lifts need longer rests (2 to 3 minutes); small ones need less (about 1 minute).
- Reps in the tank
- How many more reps you could have done. "Stop with 2 in the tank" means end the set when you could still do about 2 more with good form.
- Progressive overload
- Doing a little more over time: a bit more weight, or one more rep. It's how everyone gets stronger.
- Compound
- An exercise that uses several joints and big muscles at once, like a squat, press, or row.
- Isolation
- An exercise that focuses on one muscle, like a curl or a lateral raise.
- Failure
- The point where you can't do another rep with good form. Beginners don't need to train to failure.
- Superset
- Two exercises done back to back with no rest in between, then a rest.
- PR
- Personal record: the most weight or reps you've ever done on a lift.
- Deload
- A lighter week, about half the usual sets, to let your body recover. Useful every 6 to 10 weeks or when you feel run down.
- Working in
- Taking turns on equipment with someone between your sets. Ask "mind if I work in?" It's normal.
- Spotter
- Someone who stands by to help if you get stuck on a lift, usually the bench press. Machines and safety bars do the same job when you train alone.
- Form
- How you do the movement. Good form first, then add weight.