摘要:

In brief: Although stretching exercises can prevent muscle injuries and enhance athletic performance, they can also cause injury. The author explains the four most common types of stretching exercises and explains why he considers static stretching the safest. He also sets up a stretching routine for runners. In setting up a safe stretching program, one should (1) precede stretching exercises with a mild warm-up; (2) use static stretching; (3) stretch before and after a workout; (4) begin with mild and proceed to moderate exercises; (5) alternate exercises for muscle groups; (6) stretch gently and slowly until tightness, not pain, is felt; and (7) hold the position for 30 to 60 seconds.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711207

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

In brief: To assess the effects of rapid weight reduction, four university wrestlers decreased their body weight by 8% over a four-day period by food and liquid intake reductions. Significant decreases in muscle glycogen concentration and dynamic strength, but not aerobic or anaerobic capacity, accompanied weight loss. A three-hour rehydration period did not improve glycogen levels or strength performance. These results suggest that rapid weight reduction may impair wrestling performance.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711208

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

In brief: In an effort to determine common factors that may have contributed to spinal cord injuries in football players, the author reviewed medical records and newspaper articles. He also interviewed players who had sustained catastrophic neck injuries and talked to their families and coaches. The study showed that lightweight defensive players are at the greatest risk of suffering catastrophic neck injuries, which are most often due to improper use of the head and neck during tackling. Coaches, trainers, and team physicians should institute proper conditioning and development programs and teach correct blocking and tackling techniques to prevent these injuries.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711209

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

In brief:The pathogenesis of exercise- related hematuria is not clearly understood. This review shows that the most important factors are the degree of aerobic demand and the duration of exercise. Dehydration, age, and diet are also implicated. The authors propose a theory based on increased vascular resistance, cortical shunting, and spiral calicine vessels. They say the problem seems to be benign, because athletes have no increased incidence of renal disease. After the initial evaluation to rule out occult urologic pathology, recurrences do not require complete reevaluation if they are characteristic of the previous episodes and if the urine clears in 24 to 48 hours.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711210

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

In brief: Menstrual irregularity in athletes, once thought to be a phenomenon isolated to endurance athletes, is being widely reported as more women engage in intense exercise. It could stem from physical or psychological stress, changes in hormone function or body composition, or a combination of these factors. This panel of experts helped to define the problem, but they agreed that research is confounded by the many variables involved. Until the answers are in, athletes should not assume that changes in their menstrual cycles stem from exercise alone. They should consult a gynecologist to rule out pathological changes.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711211

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

Seattle high schools use a health care team of physicians, coaches, and student athletic trainers to systematically evaluate, rehabilitate, and monitor sports injuries.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711212

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

Atlanta physician John D. Cantwell's outlook on life reflects his professional interests in preventive medicine and lifetime sports and his personal commitments to travel, writing, and his family.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711213

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711214

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

Three years before the Los Angeles Olympic Games. Michael Yessis, PhD. believes the United States has as much chance of garnering the lion's share of the medals as Albania or Zambia. The professor of physical education at California State University, Fullerton, and publisher o f the Soviet Sports Review told McGraw-Hill World News reporter Paul Addison that he is not a pessimist or communist. He just doesn't expect any nation to match the excellence of the scientifically trained Soviet athletes. Yessis writes here for a change in attitude toward learning from the Russians.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711215

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor

摘要:

In this recreational paradise, opportunities for golf, tennis, and water sports abound; but one can also make a sport of merely driving and exploring its beautiful volcanic shores and mountains.

ISSN:0091-3847    

DOI:10.1080/00913847.1981.11711216

出版商:Taylor&Francis    

年代:1981

数据来源: Taylor