Olympic Lifting Movements Endanger Adolescents

Spondylolysis in young tennis players

The general aetiology, diagnosis, and treatment of spondylolysis, a bone defect in the pars interarticularis of the vertebra, are reviewed. A retrospective study of young tennis players diagnosed between 2000 and 2004 with spondylolysis with or without spondylolisthesis, assessed by radiography and planar bone scintigraphy, is described. If the radiographic results were negative, computed tomography was performed. Sixty six cases were evaluated: 53 L5 lesions, eight L4 lesions, two L3 lesions, and one bilateral lesion at the L2 level. Two more lesions at two levels were found (bilateral L5 and unilateral L4 and L3 on the right side). Classification, treatment, and outcome of the cases are reported. A combination of radiography, planar bone scintigraphy, and SPECT is useful for evaluating spondylolysis in tennis players and recommending treatment. Use of a brace did not appear to achieve significant results.

Strength training in children and adolescents

Strength is the ability to exert muscular force against resistance. It is a fundamental requirement of most daily physical activities of children and of adults. Strength training is the use of progressive resistance exercise methods specifically to increase strength. Strength training for children and adolescents is not without risk. Proven medical concerns relate to back, shoulder, and other joint injuries and to hypertension and related diseases. However, the rate of injury is probably rather low, comparable to many youthful activities that are considered safe. Also, the incidence and severity of injury can probably be minimized by adherence to the guidelines presented. Children may be expected to become stronger with appropriate training. Increased strength can enhance their performance in those athletic activities in which strength, power, or speed are required. It may reduce the incidence and severity of overuse injury in sport. However, it cannot reasonably be expected to protect against serious, acute injury in sport.

Misuse of Strength Development Programs in Athletic Training

Athletes often overemphasize strength and ignore speed, timing, balance, and other skills that would improve performance. The author recommends specificity of training and activities that build rotational strength.

Olympic Weight-Lifting Injuries

Because most Olympic weightlifting injuries are caused by inflexibility and improper technique, the well-trained lifter concentrates on improving these abilities.