Publications by authors named "P J Sizer"
Background: The sacroiliac joints (SIJ) are specialized articulations in the pelvis that allow load transfer between the upper and lower body. Traumatic pelvic disruption often requires surgical fixation of at least one of these joints. Subsequent SIJ pain is associated with asymmetries in joint laxity or stiffness.
View Article and Find Full Text PDFDeep neck flexor (DNF) muscles contribute to cervical stability and proprioception. Reduced muscle strength and endurance lead to faulty movement patterns, muscle imbalances, and dysfunction. Potentially, the orofacial muscles contribute to cervical strength by providing stability through muscular connections.
View Article and Find Full Text PDFArticle Synopsis
- Fatigue negatively impacts neck function in athletes, increasing the risk of concussions, especially for those with a history of concussions.
- The study evaluated how exercise-induced central fatigue affects neck joint position error, strength, and endurance in both healthy individuals and those with a concussion history.
- Results showed that fatigue led to significant increases in joint position error and decreases in neck flexor endurance and strength in both groups, indicating a deterioration in cervical neuromuscular function.
Objective: This study investigated the effect of Verbal Instruction (VI) strategies on trunk muscle contraction among healthy subjects. The effect of three VI Abdominal Drawing-In Maneuver (ADIM) and two VI Abdominal Bracing Maneuver (ABM) strategies on left Internal (LIO) and External Oblique (LEO) and bilateral superficial Multifidi (sMf) activation was examined.
Design: Within-subjects, repeated measure design.
Background: McKenzie standing trunk extension exercises have been used for the management of low back pain (LBP). However, no study to date has investigated the effect of standing trunk extension postures on spinal height and clinical outcomes.
Objective: To evaluate in subjects with LBP following a period of trunk loading how spinal height, pain, symptoms' centralization and function outcome measures respond to two standing postures interventions: (1) repetitive trunk extension (RTE) and (2) sustained trunk extension (STE).