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1. Six men and four women, 30-51 yr of age, were asked to use the tip of the washed and dried index finger to stroke six different featureless, flat surfaces mounted on a three-dimensional force platform. The six surfaces were rosin-coated glass, glass, satin-finished aluminum, poly-vinyl chloride (PVC) plastic, Teflon, and nyloprint (polyamide plastic).(More)
The definition of the 'yips' has evolved over time. It is defined as a motor phenomenon of involuntary movements affecting golfers. In this paper, we have extended the definition to encompass a continuum from the neurologic disorder of dystonia to the psychologic disorder of choking. In many golfers, the pathophysiology of the 'yips' is believed to be an(More)
BACKGROUND The 'yips' is a psychoneuromuscular impediment affecting execution of the putting stroke in golf. Yips symptoms of jerks, tremors and freezing often occur during tournament golf and may cause performance problems. Yips-affected golfers add approximately 4.7 strokes to their scores for 18 holes of golf, and have more forearm electromyogram(More)
Increased participation in sports is associated with increased related injuries. This study was conducted to identify the emotional responses of athletes to injury and to determine which responses might interfere with rehabilitation and necessitate psychologic or psychiatric intervention. In 72 patients, follow-up surveillance was continued from the time of(More)
Epidemiological reports of sports injury confirm a high incidence of injuries occurring at all levels of sport participation, ranging in severity from cuts and bruises to spinal cord injury. The psychosocial dynamics accompanying sport injury should be known to ensure psychological recovery, an important aspect in rehabilitating the injured athlete. Earlier(More)
Although research on the psychological impact of injury is in its infancy, this article reviews relevant literature focusing on post-injury emotional response, self-esteem, and the effect of mood disturbance on rehabilitation from sport injury. Injury is often accompanied by depression, tension, anger and low self-esteem, particularly in competitive,(More)
Injury rates are high among children and adolescent athletes. Psychosocial stressors, such as personality, history of stressors, and life event stress can influence injury occurrence. After injury, those same factors plus athletic identity, self-esteem, and significant others-such as parents, coaches, and teammates-can affect injury response, recovery and(More)
This review aims to outline the effects of fluoride on the biological processes involved in the formation of tooth tissues, particularly dental enamel. Attention has been focused on mechanisms which, if compromised, could give rise to dental fluorosis. The literature is extensive and often confusing but a much clearer picture is emerging based on recent(More)
This 3-year prospective cohort observational analysis of elite amateur hockey players ranging in age from 17 to 20 years on a United States Hockey League team describes ice hockey injuries using a strict definition of injury, standardized reporting strategies, and diagnosis by a team physician. One hundred forty-two injuries were recorded for an on-ice(More)