Frontal Plane
The frontal, or coronal, plane is a vertical anatomical plane that divides the body into anterior and posterior portions. Abduction and adduction occur in this plane.
Definition
The frontal, or coronal, plane is an imaginary vertical plane that divides the body into anterior and posterior portions. Abduction and adduction are medial-lateral movements described in this plane. Lateral spinal flexion and foot inversion or eversion can also be described with respect to frontal-plane motion. The sagittal and transverse planes provide the other common anatomical references.
OpenStax · Anatomical planes · OpenStax · Movements in the coronal plane
HYROX® context
Running, wall balls, lunges and sled pushing are three-dimensional movements even when much of their visible displacement is forward and backward. The current HYROX® rules specify task standards, but they do not classify the sport as predominantly sagittal, establish frontal-plane stability as essential, or show that one plane of training prevents lateral shift, knee valgus, injury or time loss.
HYROX® Singles Rulebook 2026/27 · OpenStax · Anatomical planes
Evidence and training
A 2020 review found lower isometric hip strength across three planes in people with chronic ankle instability compared with healthy controls. That population comparison does not show that frontal-plane hip weakness caused the ankle condition, propagates through every kinetic chain, or predicts HYROX® outcomes. Lateral steps, side planks, lateral lunges and balance drills impose different demands; the sources do not identify a best set, prescribe two to three weekly sessions, guarantee proprioception or joint-stability gains, or prove direct station-time improvement.
Dejong et al. · Chronic ankle instability review · HYROX® Singles Rulebook 2026/27
Related terms
The frontal plane is one of the standard planes alongside the sagittal plane and transverse plane. Abduction moves away from the midline and adduction moves toward it; lateral is a directional term.
OpenStax · Anatomical planes · OpenStax · Movements in the coronal plane
Use Repz to track whether improved frontal-plane training correlates with faster station times.
FAQ
Why should HYROX® athletes train frontal-plane movements?
They can broaden movement exposure and address an individual need, but the reviewed evidence does not show that every athlete requires them to prevent injury, stop “energy leaks” or improve race time.
Dejong et al. · Chronic ankle instability review · HYROX® Singles Rulebook 2026/27 · OpenStax · Movements in the coronal plane
What are the best frontal-plane exercises for HYROX®?
No universal best exercise is established. Select lateral or single-leg drills according to the intended movement, the athlete’s ability, symptoms and the rest of the programme.
Dejong et al. · Chronic ankle instability review · HYROX® Singles Rulebook 2026/27 · OpenStax · Movements in the coronal plane
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