HIGH STRAIGHT ARM PLANK
Full Body Stability & Core Endurance
Primary Muscles
Exercise Description
The high straight arm plank is performed in a push-up position with arms fully extended. This variation emphasizes shoulder stability and upper body endurance while building core strength.
How To Perform
Start in a push-up position with hands directly under shoulders.
Extend arms fully with hands flat on the ground.
Keep your body in a straight line from head to heels.
Engage your core by bracing as if about to be punched.
Keep your head neutral, looking at the ground ahead of your hands.
Hold this position for the target duration while breathing steadily.
Expert Tips
Active shoulder push - Push hands into ground and protract shoulders. Don't let shoulder blades pinch together.
Neutral spine maintained - Don't let hips sag or pike up. Maintain straight line throughout.
Full body tension - Squeeze glutes, engage quads, brace core. Everything should be tight.
Consistent breathing - Don't hold your breath. Take steady breaths while maintaining position.
Common Mistakes
Hips sagging - Most common error. Engage glutes and core harder to maintain alignment.
Shoulders shrugging - Keep shoulders away from ears. Push actively into ground.
Looking up - Keep neck neutral. Look at ground between hands.
Locked elbows - Arms extended but not hyperextended. Maintain slight engagement.
Video Guide – High Straight Arm Plank
The high straight arm plank, also known as the extended arm plank or high plank, is a fundamental bodyweight exercise that builds full-body stability. Unlike the forearm plank where you rest on your elbows, this variation has you supporting your body with straight arms in a push-up position. This arm extension creates different demands: your shoulders must work harder to stabilize your body, your core must resist more rotational forces, and your upper body endures more time under tension. It's an excellent exercise for building the strength and stability needed for push-ups, handstands, and other upper body pressing movements.
What makes this plank variation particularly valuable is how it teaches proper push-up positioning. Many people struggle with push-ups because they lack the foundational strength to maintain a rigid plank position throughout the movement. By mastering the high plank hold, you build the static strength necessary for dynamic pressing movements. The exercise also develops exceptional shoulder endurance and serratus anterior strength—muscles critical for shoulder health and scapular stability. This makes it valuable not just for core development, but for overall upper body structural integrity.
Watch the demonstration video carefully. Notice the hand position directly under shoulders, not in front or behind. The arms are fully extended but not hyperextended—there's active engagement pushing the floor away. The body forms a perfect straight line from head to heels with no sagging hips or piked butt. The head stays neutral, looking at the ground between the hands. Throughout the hold, breathing is steady and controlled despite the intense core and shoulder engagement. This is what a perfect high plank looks like.
Program high straight arm planks 3-4 times per week as part of your core training. Beginners should start with 3 sets of 20-30 second holds, focusing on perfect form over duration. As you progress, extend holds to 45-60 seconds. Once you can hold a perfect high plank for 60+ seconds, progress by adding difficulty: elevate your feet, perform single-leg holds, or add shoulder taps. These variations maintain the training stimulus as you get stronger. Remember: 30 seconds of perfect alignment builds more strength than 2 minutes of sloppy form with sagging hips.
Equipment Required
Exercise mat (optional for comfort)