1.4 Movement Analysis & Baseline Physical Assessment

Movement Analysis & Baseline Physical Assessment

Following comprehensive health and medical screening, the next critical phase of client onboarding is the baseline physical assessment. This process is designed to evaluate an athlete's movement quality, range of motion, and baseline work capacity. The data gathered here heavily informs program design, ensuring that athletes develop essential mechanics and consistency before the introduction of high intensity or heavy loads. An effective baseline assessment serves as a road map, highlighting movement deficiencies and establishing objective starting points to measure future progress.

The Joint-by-Joint Approach

A highly systematic and effective way to analyze human movement is through the joint-by-joint approach. This paradigm, developed by physical therapist Gray Cook and strength coach Mike Boyle, views the human body as a stack of joints that alternate between needing primarily mobility and primarily stability. When a mobile joint becomes restricted or immobile, the adjacent stable joint is forced to compensate, often leading to pain and injury over time.

• Ankle: Requires Mobility (specifically dorsiflexion, which is vital for squat depth and running mechanics).
• Knee: Requires Stability (resisting valgus and varus forces while acting as a hinge).
• Hip: Requires Mobility (flexion, extension, internal/external rotation, essential for generating power).
• Lumbar Spine: Requires Stability (resisting flexion and extension under load to protect the spinal cord).
• Thoracic Spine: Requires Mobility (extension and rotation, crucial for overhead positions and posture).
• Scapulo-Thoracic: Requires Stability (providing a firm anchor for the humerus to move against).
• Glenohumeral (Shoulder): Requires Mobility (the most mobile joint in the body, needing free movement in all planes).

For example, if an athlete lacks adequate ankle dorsiflexion (a mobility restriction), they will likely compensate during a squat by valging the knees or rounding the lumbar spine (sacrificing stability in regions meant to be stable). Therefore, a lower back problem is often not a lower back issue at all, but rather a compensation for poor mobility in the hips or ankles.

Active vs. Passive Range of Motion (ROM)

Understanding the distinction between active and passive range of motion is paramount for accurately diagnosing movement faults and prescribing the correct intervention.

• Active ROM: The range of motion an athlete can achieve unassisted, using solely their own muscular contraction. This assesses both tissue extensibility (flexibility) AND motor control (strength and neurological coordination). It shows what the athlete can control.
• Passive ROM: The range of motion achieved when an external force (e.g., the trainer, gravity, or a band) moves the joint, with the athlete completely relaxed. This primarily isolates tissue extensibility and joint capsule limitations, removing the element of motor control.

Diagnostic Value: If an athlete has full passive ROM but severely limited active ROM, the limitation is almost certainly a motor control or strength deficit, not a flexibility issue. They possess the physical range, but their nervous system cannot control it or recruit the correct muscles to achieve the position. Conversely, if passive ROM is restricted, no amount of motor control will allow the athlete to achieve the position, and tissue work or mobilization is required.

Baseline Movement Testing

The assessment should evaluate the foundational movement patterns using bodyweight or PVC pipe exercises. The trainer must observe from multiple viewing angles (anterior, posterior, and profile) to catch subtle compensations. The goal is to evaluate mechanics prior to adding intensity or load.

1. The Air Squat

• Purpose: Assesses bilateral hip, knee, and ankle mobility, as well as lumbar and core stability. It is the foundation of all functional movement.
• Key Observations:
  • Does the lumbar curve maintain neutrality throughout the entire range of motion?
  • Do the knees track in line with the toes, or is there valgus (inward) collapse?
  • Does the weight remain distributed across the mid-foot/heel, or shift entirely to the toes (heels lifting)?
  • Is the crease of the hip passing clearly below the top of the patella (full depth)?

2. The Overhead Squat (with PVC)

• Purpose: The ultimate test of midline control, shoulder mobility, and total-body coordination. It highlights restrictions in the thoracic spine and shoulders that the air squat misses.
• Key Observations:
  • Can the bar remain directly over the frontal plane footprint (mid-foot) during the descent?
  • Does the torso remain relatively upright without excessive forward lean?
  • Are the shoulders actively elevated (shrugged into the ears) with the armpits facing forward to support the load safely?

3. The Strict Press

• Purpose: Assesses shoulder mobility, thoracic extension, and anterior core stability. It tests the ability to move a load overhead without compromising spinal alignment.
• Key Observations:
  • Does the athlete over-extend the lumbar spine to achieve the overhead position (evidenced by severe rib flare)?
  • Is the bar path linear, or does the athlete push the bar out and around the face?

4. The Deadlift (PVC/Light Barbell)

• Purpose: Evaluates the hip hinge pattern, posterior chain engagement (glutes and hamstrings), and lumbar stability under tension.
• Key Observations:
  • Does the movement initiate from the hips or does the lumbar spine round immediately?
  • Are the shoulders pinned back and down (lats engaged) to keep the bar close to the body?

Baseline Work Capacity Testing

After thoroughly assessing movement quality, a baseline measure of work capacity should be established. This test must be repeatable, standardized, and appropriate for the athlete's current fitness level. It should measure performance across broad time and modal domains to give a snapshot of their current fitness.

• Example for Novices: A 500m row for time, or a 3-minute AMRAP of bodyweight squats, sit-ups, and push-ups.
• Example for Experienced Athletes: A benchmark workout like "Jackie" (1000m row, 50 thrusters, 30 pull-ups) or "Cindy" (20 min AMRAP: 5 pull-ups, 10 push-ups, 15 squats).

The primary goal of this testing is not to crush the athlete or induce severe soreness, but to gather an objective data point for future comparison. This data allows the coach to objectively measure fitness improvements and adjust programming accordingly over time.