The course and prognostic factors of symptomatic cervical disc herniation with radiculopathy: a systematic review of the literature.

Background Context: Cervical spine disc herniation is a disabling source of cervical radiculopathy. However, little is known about its course and prognosis. Understanding the course and prognosis of symptomatic cervical disc herniation is necessary to guide patients' expectations and assist clinicians in managing patients.

Changes in vertebral artery blood flow following various head positions and cervical spine manipulation.

Objective: The objective of the study was to investigate the cerebrovascular hemodynamic response of cervical spine positions including rotation and cervical spine manipulation in vivo using magnetic resonance imaging technology on the vertebral artery (VA).

Methods: This pilot study was conducted as a blinded examiner cohort with 4 randomized clinical tasks. Ten healthy male participants aged 24 to 30 years (mean, 26.

The effects of beta-alanine supplementation on performance: a systematic review of the literature.

Purpose: To critically review the methodological quality and synthesize information from systematic reviews and high quality studies on the effects of beta alanine (BA) on exercise and athletic performance.

Methods: A search strategy was developed in accordance with the standards for the reporting of scientific literature via systematic reviews. Five databases were thoroughly searched from inception to November 2012.