Prone Y Raise
Trains traps first, with real work landing on rear delts, side delts.
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
Prone Y for lower trap and rear delt; tempo with pause builds scapular stability and posture.
Thumbs up; lift arms into Y shape, squeeze shoulder blades.
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
- Rear Delt FlyDumbbell
- Resistance Band Face PullBand
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.