Pronation of the foot with many overuse injuries in running including medial tibial stress syndrome, or shin splints, and knee pain Hintermann states, “Individuals with injuries typically have pronation movement that is about two to four degrees greater than that of those with no injuries.” He adds however, that between 40% and 50% of runners who overpronate do not have overuse injuries. This suggests that although pronation may have an effect on certain injuries, it is not the only factor influencing their development. The design principles of foot orthoses are founded on knowledge of the functional anatomy of the foot. Pronation of the foot
Holiday heart syndrome Holiday heart syndrome Holiday heart syndrome is an irregular heartbeat pattern presented in individuals who are otherwise healthy. Coined in 1978 the term is defined as "abnormal heart rhythms sometimes following excessive alcohol consumption; usually temporary". Holiday heart syndrome can be the result of stress, dehydration, and drinking alcohol. It is sometimes associated with "binge drinking" common during the holiday season. The condition can also occur when individuals consume only moderate amounts of alcohol. Irregular heartbeats can be serious. If palpitations continue for longer than a few hours patients should seek medical attention. Some abnormal heart rhythms (arrhythmias) associated with