Muscle imbalances (e.g., weak abdominals combined with tight hip flexors) are identified as the root cause of many pain syndromes, such as lumbar lordosis or lower back pain.
Do not just hoard the PDF. Take the Thomas test (Chapter 4) on a friend. Perform the neck flexor test on yourself. You will likely find a weakness within two tests. That "aha moment"—linking a tight muscle to a distant pain—is the Kendall legacy. -I Muscoli Funzioni E Test Kendall pdf-
Unlike simpler scales, the Kendall system is noted for its precision. It uses a but incorporates plus (+) and minus (-) modifiers to provide more nuanced measurements of muscle strength. Grade 5 : Full ROM against gravity with full resistance. Grade 3 : Full ROM against gravity but no added resistance. Grade 2 : Full ROM with gravity eliminated. Notable Clinical Tests Muscle imbalances (e