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Exercise Details

Target Muscle Group

Triceps

Equipment Required

Dumbbells

Experience Level

Intermediate

Force Type

Push

Secondary Muscles

Shoulders

Exercise Description

The one arm lying dumbbell extension isolates your triceps for serious arm strength. Works each arm separately to fix muscle imbalances and build bigger, stronger triceps.

How To

1. Lie flat on a bench holding a dumbbell in one hand, arm extended straight up over your shoulder. 2. Keep your upper arm still and slowly lower the dumbbell by bending at your elbow until it nearly touches your shoulder. 3. Your elbow should stay pointed toward the ceiling throughout the one arm lying dumbbell extension movement. 4. Press the weight back up by straightening your arm, focusing on squeezing your triceps at the top. 5. Complete all reps on one side before switching arms for the one arm lying dumbbell extension.

Form Tips

• Keep your upper arm locked in place - only your forearm should move during the one arm lying dumbbell extension • Control the weight on the way down, don't let gravity do the work • Keep your core tight to stay stable on the bench throughout the movement • Use your free hand to spot your working arm if needed during the one arm lying dumbbell extension

Common Mistakes

• Moving your upper arm or shoulder instead of keeping them locked in position during the one arm lying dumbbell extension • Going too heavy and losing control of the weight, which can hurt your elbow joint • Rushing through reps instead of controlling both the lowering and lifting phases of the one arm lying dumbbell extension

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