Assessments to identify functional movement deficiencies include screens like the Functional Movement Screen (FMS) and specific fitness tests that target flexibility, strength, and balance. These assessments evaluate an individual's movement patterns and identify limitations or abnormalities that could lead to injuries. Focusing on fundamental movements such as squatting, lunging, and bending helps pinpoint areas needing improvement. Providing targeted feedback allows trainers to design customized programs, focusing on correcting deficiencies and enhancing overall functional fitness for better performance and injury prevention.