Reviewed exercise · intermediate

Straight-Leg Side Plank

A accessory isolation movement for core.

Equipment

bodyweight

Typical range

15–60 reps

Also trains

shoulders, glutes

Set up

Set up in a clear space and inspect every contact point before starting.

Execute

Stack the feet and support on one forearm, lifting into a straight head-to-heel line.

Complete the final repetition with the same controlled range, then exit the position safely.

Coaching cues

• Push the floor away.
• Use a repeatable, pain-free range.

Common mistakes

• Rotating the pelvis or collapsing at the shoulder.
• Continuing after position, control, or equipment security is lost.

Modify or stop when relevant discomfort is reported. Educational content does not diagnose injury.