Does the evidence support the existence of lumbar spine coupled motion? A critical review of the literature.

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Legaspi and Edmond of USA reviewed the current literature addressing coupled motion between side bending and rotation in the lumbar spine to determine if a consistent pattern exists across articles. They found 24 articles in which 32 analyses addressed their clinical question. Seventeen of the 24 articles identified concluded that some form of coupled motion exists; however, there was little agreement across articles as to the specific characteristics of coupled motion. They found high degree of inconsistency in reported patterns of coupled motion. This suggested that physical therapists should use caution when applying concepts of coupled motion to the evaluation and treatment of patients with low back pain.

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