Fit for Duty: Malignant Hyperthermia Susceptibility

Research Paper Title Malignant Hyperthermia Susceptibility and Fitness for Duty. Background Malignant hyperthermia (MH) is an inherited hypermetabolic condition characterised by uncontrolled calcium release from the sarcoplasmic reticulum of skeletal muscle, usually from exposure to inhaled general anesthetics and/or the depolarising neuromuscular blocking agent succinylcholine. Multiple case reports now reveal that crises may be precipitated… Read More

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A Guide to Coronary Calcium Scans

Here in Australia, a number of organisations offer coronary calcium scans. What, I hear you say, is a coronary calcium scan? Why Look At Coronary Calcium? A coronary calcium scan looks for specks of calcium (or calcification) in the walls of the coronary (heart) arteries. Calcification can be an early sign of coronary heart disease… Read More

Initial Military Training: Linking Polymorphisms, Bone Biomarkers, Calcium & Vitamin D

Research Paper Title Association Between Single Gene Polymorphisms and Bone Biomarkers and Response to Calcium and Vitamin D Supplementation in Young Adults Undergoing Military Training. Background Initial military training (IMT) is associated with increased stress fracture risk. Methods In prior studies, supplemental calcium (Ca) and vitamin D provided daily throughout IMT reduced stress fracture incidence,… Read More

Bone Density: Calcium Supplements vs Calcium from Dietary Sources

Study Question Does increasing calcium intake from dietary sources have any effects on bone mineral density and, if it does, are they similar to the effects of calcium supplements? Summary Answer Increasing calcium intake, whether from dietary sources or by taking calcium supplements, leads to small (1-2%) non-progressive increases in bone density, without any ongoing… Read More

Israeli Defence Force: Dietary Intake, Stress Fractures & Basic Training

Research Paper Title Dietary Intake and Stress Fractures among Elite Male Combat Recruits. Background Appropriate and sufficient dietary intake is one of the main requirements for maintaining fitness and health. Inadequate energy intake may have a negative impact on physical performance which may result in injuries among physically active populations. The purpose of this research… Read More

Are Stress Fractures Associated with Vitamin D Insufficiency?

Research Paper Title Femoral and Tibial Stress Fractures Associated with Vitamin D Insufficiency. Abstract The researchers describe a case highlighting the need to consider hypovitaminosis-D when investigating background causation and treatment of femoral and tibial stress fractures. The case also suggests that prescribing calcium and vitamin D supplementation may help with fracture healing in soldiers… Read More

Research: Calcium Intake & Mortality

Research Paper Title: Long Term Calcium Intake and Rates of All Cause and Cardiovascular Mortality: Community Based Prospective Longitudinal Cohort Study. Study Question: What is the association of long term intake of dietary and supplemental calcium with mortality from all causes and cardiovascualr disease? Summary Answer: High intakes of calcium (>1400 mg/day) are associated with… Read More