Machine Fly

A machine fly moves the upper arms through horizontal adduction on a guided path; handle and pad design vary by machine.
Movement and evidence
A machine fly moves the upper arms through horizontal adduction on a guided path; handle and pad design vary by machine. Exercise setup and variation change joint demands and muscle contribution. The cited evidence supports specific tested conditions, not universal isolation or one mandatory technique.
ACSM resistance-training position stand 2026
Programming and limits
Use a controlled range and a load or pace suited to current ability. Progress according to training response. No exercise alone guarantees injury prevention, body-composition change or faster HYROX® performance.
ACSM resistance-training position stand 2026
FAQ
What defines this exercise?
A machine fly moves the upper arms through horizontal adduction on a guided path; handle and pad design vary by machine.
Is there one required load or pace?
No. It should match technique, ability and training response.
Repz balances your pressing and pulling volume based on your station data and injury history. Our engine ensures your chest, shoulders, and back develop proportionally for race-day performance. Start your free plan and build a balanced upper body.
Was this helpful?