Cresswell A G, Blake P L, Thorstensson A
Department of Neuroscience, Karolinska Institute, Stockholm, Sweden.
Scand J Rehabil Med. 1994 Jun;26(2):79-86.
The effect of 10 weeks' specific abdominal strength training (resisted trunk rotations) on intra-abdominal pressure was investigated in 10 healthy males. Isometric rotational force, trunk flexor and extensor torque and intra-abdominal pressure were measured as well as intra-abdominal pressure responses to Valsalva manoeuvres, maximal pulsed pressures, drop jumps and trunk perturbations. The rotational strength increased 29.7% after training without significant change in intra-abdominal pressure. The isometric flexor strength did not change, while the extensor strength increased 11.0%. Valsalva and pulsed pressures increased 11.6 and 9.2%, respectively. The rate of intra-abdominal pressure development during pulsed pressures, drop jumps and trunk perturbations increased after training. The level of intra-abdominal pressure during the latter two tasks remained unchanged. It is concluded that an increase in strength of the trunk rotators with training improves the ability to generate higher levels of voluntarily induced intra-abdominal pressure and increases the rate of intra-abdominal pressure development during functional situations.
对10名健康男性进行了为期10周的特定腹部力量训练（抗阻躯干旋转），研究其对腹内压的影响。测量了等长旋转力、躯干屈伸肌扭矩和腹内压，以及腹内压对瓦尔萨尔瓦动作、最大脉压、跳深和躯干扰动的反应。训练后旋转力量增加了29.7%，而腹内压无显著变化。等长屈肌力量未改变，伸肌力量增加了11.0%。瓦尔萨尔瓦动作和脉压分别增加了11.6%和9.2%。训练后，在脉压、跳深和躯干扰动期间腹内压的上升速率增加。后两项任务期间的腹内压水平保持不变。研究得出结论，通过训练增加躯干旋转肌的力量可提高产生更高水平自主诱导腹内压的能力，并增加功能状态下腹内压的上升速率。
