What is kinesiology and how is it applied in clinical practice?

What is Kinesiology and How is it Applied Clinically?

Kinesiology in clinical practice refers to the scientific study of human movement and biomechanics, which is applied through structured exercise programs, movement analysis, and functional assessments to optimize patient outcomes—this is fundamentally different from "Applied Kinesiology," an unvalidated alternative therapy that lacks scientific support.

Two Distinct Definitions

Evidence-Based Clinical Kinesiology

Clinical kinesiology represents the legitimate application of movement science in rehabilitation and sports medicine. The evidence demonstrates its use across multiple clinical contexts:

In Musculoskeletal Rehabilitation:

• Movement pattern assessment during functional tasks (single leg squats, running gait analysis) to identify biomechanical impairments 1
• Objective measurement of strength using hand-held dynamometry and isokinetic testing 2
• Analysis of jumping biomechanics including moments, angles, and work in vertical and horizontal planes 2
• Running mechanics evaluation with >90% symmetry targets for vertical ground reaction forces 2

In Structured Exercise Prescription: The 2016 AHA/ACC guidelines define structured exercise programs as planned interventions providing individualized recommendations for type, frequency, intensity, and duration of exercise, with progression protocols to consistently challenge the body 3. This applies to:

• Supervised programs in hospital/outpatient settings with qualified healthcare provider oversight 3
• Community or home-based programs that are self-directed with professional guidance 3

Key Clinical Applications Include:

• Post-ACL Reconstruction: Specific criteria-based progression using limb symmetry indices >80-90% for strength and jump metrics, with biomechanical normalization before return to sport 2
• Patellofemoral Pain: Movement retraining (e.g., increasing step rate in runners with excessive stride length) combined with hip and knee strength assessment 1
• Cancer Rehabilitation: Exercise prescription across the cancer care continuum, with physiatrists assessing disabling conditions that could limit exercise participation 4

"Applied Kinesiology" - The Unvalidated Alternative Therapy

This is a completely separate entity that should not be confused with evidence-based kinesiology. Applied Kinesiology (AK) claims to diagnose health conditions through manual muscle testing while patients hold substances or think about questions.

The evidence is unequivocal: A rigorous double-blind randomized study found AK performed at chance level (53% accuracy, P=.258) in identifying toxic versus non-toxic substances 5. A systematic review of 22 studies found methodology so poor (QUADAS scores 1-11/14, JADAD scores all 0/5) that researchers concluded there is "insufficient evidence for diagnostic accuracy within kinesiology" and "no evidence for effectiveness for any condition" 6. Even the AK field's own literature review (50 papers, 1981-1987) was deemed unreliable 5.

Clinical Implementation Framework

For Evidence-Based Movement Assessment:

1. Objective Functional Testing:

   • Range of motion measurements (e.g., 95% knee flexion for return to running 2)
   • Strength testing with specific symmetry targets (LSI >80-100% depending on activity level 2)
   • Movement quality assessment during task-specific activities 1

2. Biomechanical Analysis:

   • Observe compensatory patterns during single-leg squats, running, or sport-specific movements
   • Quantify ground reaction forces and joint kinematics when available
   • Identify tissue tolerance to load through pain provocation testing 1

3. Exercise Prescription Based on Findings:

   • Minimum 30-45 minutes per session, 3 times weekly for at least 12 weeks in supervised programs 3
   • Progressive loading with warm-up and cool-down periods
   • Behavioral change techniques including health coaching and activity monitors 3

Common Pitfall: The term "kinesiology" without qualification may lead to confusion with Applied Kinesiology. Always specify "clinical kinesiology," "exercise science," or "movement analysis" when referring to evidence-based practice. If patients mention "kinesiology" treatments, clarify whether they mean legitimate movement therapy or the discredited muscle testing technique—the latter has no role in clinical decision-making 5, 6.

Practical Note: While one small pilot study suggested kinesiology training improved symptoms in 20 Parkinson's patients 7, this likely refers to structured movement training rather than Applied Kinesiology, and the evidence is too limited to draw conclusions. The overwhelming consensus supports only evidence-based movement science applications 5, 8, 6.