Pre-Season Screening: The 20-Minute Assessment Every Coach Should Run Before Day One

The first practice of the season is not day one of injury prevention. It's already too late. The athlete who tears her ACL in week three had detectable movement deficits before the season started. The kid who develops shin splints by October had measurable calf weakness in August. The boy who pulls his hamstring in the first game had visible bilateral asymmetry that nobody looked for. Pre-season screening isn't about predicting the future — it's about seeing what's already there.

You don't need a sports medicine degree to run a basic movement screen. You need your eyes, 20 minutes per athlete, and a simple checklist. The goal isn't diagnosis — it's detection. You're looking for red flags that warrant further investigation: asymmetries between sides, obvious compensations, balance deficits, and movement patterns that suggest weakness or restriction.

The Five-Test Screen

The following battery is adapted from validated screening protocols (including elements of the Functional Movement Screen and Y-Balance Test) but simplified for coach administration. No equipment is required beyond a flat surface, a stopwatch, and a recording sheet.

Test 1: Single-Leg Balance (Eyes Closed)

What it tests: Proprioception, ankle stability, and neuromuscular control. Deficits here are strongly associated with ankle sprain risk and ACL injury risk.

How to administer: Athlete stands on one leg, hands on hips, eyes closed. Time how long they maintain balance without touching down, hopping, or opening their eyes. Test both legs.

• Green: 20+ seconds on both legs, less than 3-second difference between sides.
• Yellow: 10-20 seconds, or more than 5-second difference between sides.
• Red: Under 10 seconds on either leg, or more than 10-second difference between sides. This athlete needs targeted balance work before full training load.

Test 2: Overhead Squat

What it tests: Ankle mobility, hip mobility, thoracic spine extension, core stability, and overall movement quality. This single test reveals more about an athlete's functional capacity than any other.

How to administer: Athlete stands with feet shoulder-width apart, arms straight overhead. Squat as deep as possible while keeping heels on the ground and arms overhead. Observe from the front and the side. Three repetitions.

• Watch for: Heels lifting off the ground (ankle mobility restriction). Knees collapsing inward (hip weakness, ACL risk factor). Arms falling forward (thoracic mobility restriction). Excessive forward lean (core weakness or hip flexor tightness). Asymmetry between left and right sides.
• Green: Full depth, heels down, arms stay overhead, knees track over toes.
• Yellow: Partial depth or minor compensations. Assign corrective mobility work.
• Red: Unable to squat past quarter-depth without significant compensation. Refer to a physiotherapist or athletic trainer for assessment before loading heavy training.

Test 3: Single-Leg Hop and Hold

What it tests: Lower limb power, landing mechanics, and neuromuscular control on each leg independently. The gold standard for identifying side-to-side asymmetry.

How to administer: Athlete hops forward as far as possible on one leg and sticks the landing — holding for 3 seconds without wobbling, stepping, or touching down with the other foot. Measure the distance. Test both legs, three trials each.

• Green: Less than 10% distance difference between legs, clean landing, stable hold.
• Yellow: 10-15% asymmetry, or unstable landing (wobble, extra step).
• Red: Greater than 15% asymmetry between legs. This is one of the strongest predictors of future lower limb injury. This athlete needs targeted single-leg strengthening before full competition. If the athlete has a previous injury on the weaker side, consider referral.

Test 4: Plank Hold

What it tests: Core endurance and trunk stability. Core weakness is an upstream cause of many lower limb injuries — the body compensates for trunk instability by overloading knees, hips, and ankles.

How to administer: Standard forearm plank. Time how long the athlete maintains a straight line from head to heels without sagging, piking, or excessive shaking.

• Green: 60+ seconds with good form.
• Yellow: 30-60 seconds, or form deterioration before 60 seconds.
• Red: Under 30 seconds. Incorporate core stability work into ...