| Objective: To explore the immediate effect of intramuscular plaster binding on muscle strength and static balance ability after eccentric exercise-induced fatigue of muscles around the ankle joint.Methods: A total of 45 healthy male college students were randomly divided into 3 groups with 15 cases each for different tests (normal group, muscle fatigue group and intramuscular patch group). Among them, the normal group was directly tested for muscle strength and balance; In the muscle fatigue group, under the centrifugal/centrifugal training mode of BIODEX isokinetic training instrument, the ankle joint was subjected to continuous ankle back extension and plantar flexion to induce muscle fatigue. When fatigue appeared, muscle strength and balance tests were performed immediately; The intramuscular effect patch group was given the same training method as the muscle muscle fatigue group. Immediately after fatigue, it received the promotion patch and then was subjected to the muscle strength and balance test, including the isokinetic muscle strength at the speed of 60 °/s and 180 °/s in the centripetal mode and the static balance test at the open/closed state. Results: In terms of isokinetic muscle strength, the indexes of plantar flexion and back extension in the muscle fatigue group at 60 °/s and 180 °/s were lower than those in the normal group (all P<0.05); The peak moment and average power of plantar flexion at 60 °/s, the peak moment of back extension at 60 °/s, the average peak moment and the average power of intramuscular patch group were higher than those of muscle fatigue group (all P<0.05). The average peak moment of plantar flexion at 180 °/s, average peak moment of back extension and average power in the intramuscular patch group were higher than those in the muscle fatigue group (all P<0.05), and the peak moment of back extension in the intramuscular patch group was lower than that in the normal group (P<0.05). In terms of static balance, the mean pressure center (COP) of Y-axis, the area of exercise ellipse and the length of exercise in the muscle fatigue group were increased as compared with those in the normal group (all P<0.05). The elliptical area and length of exercise in the intramuscular effect patch group were decreased as compared with those in the muscle fatigue group (all P<0.05). The area of motor ellipse in the intramuscular patch group increased as compared with that in the normal group (P<0.05). The mean COP of the Y-axis, the mean velocity of movement in the front and back directions, the mean velocity of movement in the left and right directions, the area of movement ellipse, and the length of movement in the muscle fatigue group were significantly increased as compared with those in the normal group (all P<0.05); The average movement speed in the front and back directions, the average movement speed in the left and right directions, the movement ellipse area and the movement length in the intramuscular effect patch group were reduced as compared with those in the muscle fatigue group (all P<0.05). Conclusion: Centrifugal exercise can cause fatigue reaction of muscles around the ankle joint, and intramuscular plaster can promote muscle strength recovery and improve balance control ability of muscles around the ankle joint. |
