Cable Straight-Arm Pulldown
Trains lats first, with real work landing on upper back, triceps, core.
Muscle contribution per set
These are the weights Heatwayve's volume audit actually computes with — deliberately conservative, so compounds don't masquerade as full coverage. A 0.5 means a set counts as half a set for that muscle: meaningful help, not a replacement for direct work.
Tempo
Lat isolation with constant tension; slow eccentric maximises stretch and mind-muscle connection.
Slight lean, arms straight; think 'pull elbows to hips'.
Derived from tempo research on this movement class.
How Heatwayve progresses it
Progresses by load in +0.5kg steps. Isolation work is where the honest-volume ledger pays off — compounds alone don't cover it.
Swap it for
Same movement pattern, same progression continuity — these are the alternatives the app offers mid-session when a rack is taken or equipment isn't there.
Knowing the numbers is one thing; hitting them for fifty weeks is another. Open Heatwayve — it prescribes the weight, holds you to the tempo, and runs this arithmetic on every set you log so the week actually adds up.