Abstract
We studied the load on the diagonally opposite left lower limb in performing the isometric resistance exercise by the manual method at the start, the middle and the final positions of right upper limb proprioceptive neuromuscular facilitation (PNF) flexion-abduction-external rotation pattern. The subjects were 14 healthy, right-handed men (average age 20). The loads on the left lower limb by the resistance exercise in the right upper limb pattern were 4.04±2.40 kgf , 9.01±3.00 kgf , 6.10±4.09 kgf at the start, middle and final positions respectively. The resistance exercise of the upper limb in the middle position on the left lower limb was significantly high (p<0.05) compared to the start and final positions. The ratio of left lower limb flexion to the maximum muscle strength were 28.8% for the right upper limb in the start position, 61.2% for the middle and 43.7% for the final. Isometric resistance by one side upper limb spread the exercise to the trunk and the lower limb, and it was concluded that the opposite side lower muscle activities improved in the dynamics reaction.
