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Machine Kneeling Twist

Obliques AbsLower back Isolation Ab crunch machine
Demo (loops)

Exercise info

Primary musclesObliques
Secondary musclesAbs · Lower back
EquipmentAb crunch machine
Movement patternCore
Rep range10–15 reps
9 similar exercises

Representative exercise: Band Twist

How GYMKC sets the weight for this exercise

For example, if you do 10 reps with 40 kg and log that you could have done about 2 more, GYMKC estimates your 1RM at about 57.6 kg.

With the ab crunch machine, each step is 5 kg (10 lb), so the next weight is 45 kg. Within your 10–15 reps target, the sets you log decide whether to add reps first or add weight.

These numbers are an example of how the calculation works. Your actual prescription is recalculated every set from your own records. See how the calculation works

Related exercises

This information is based on our analysis of public content from evidence-based training experts in Korea and abroad. It is not a substitute for medical advice. Weights and sets differ from person to person. The GYMKC app uses the sets you log to calculate the weight and reps for your next set.