Abstract

The Purpose of this study was to investigate the quantitative assessment of isometric lumbar extension strength pre-operation, post-operation and following 4 week training in hernia-operated patients. Twenty-one subjects (9 males and 12 females) was tested 3 times for pre-operation, post-operation and following 4 week training late. The training was conducted twice per week for 4 weeks and consisted of one set of 15-18 repetitions of variable resistance lumbar extension until volitional fatique. Each test involved the measurement of maximum voluntary isometric torque at 72。, 60。, 48。, 36。, 24。, 12。and 0。 of lumbar flexion using the medx lumbar extension machine. Results show significant improvement of lumbar extension strength between pre-operation and 4 week training at all degrees of both males & females. Especially female group appear significant improvement between post-operation and following 4 week training at all degrees. Results further on body weight ratio indicate vital increase at major degrees between post-operation and 4 week training for both gender except at 48。degree of male group.

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