| Research purposes:The most frequent ankle injury,accounting for 83% of all ankle injuries,are lateral ankle sprains,sometimes referred to as internal ankle sprains.The risk of further injury after the original sprain increases significantly and over time may result in functional ankle instability(FAI).FAI can result in significant health and socioeconomic consequences,as well as a severe influence on both the performance of athletes and the quality of life for the general public.The proprioceptive neuromuscular facilitation approach(PNF),which uses spiral diagonal movement patterns and proprioceptive stimulation to promote neuromuscular recovery,has been demonstrated to be beneficial in treating FAI patients’ ankle stability.Due to this,this study tested the changes in ankle stability,peri-ankle muscle strength,balance function,proprioception,and peroneal muscle reaction time before and after the 6-week PNF training in order to determine whether PNF training could have a good therapeutic effect on ankle function in people with FAI and to find a more efficient training method for this population.Research method:In this study,32 participants were chosen at random and split into two groups: the PNF group,which received PNF training for 40 minutes three times per week for six weeks(16 men,12 women,4 women,6 left-sided unstable individuals,and 10 right-sided unstable individuals),and The control group underwent health education for 40 minutes three times a week for 6 weeks,except for the control group which did not undergo any exercise intervention.Both sets of subjects continued to live their everyday lives according to their usual routines for eating,exercising,and sleeping.The CAIT questionnaire for ankle stability,the Micro FET 3 portable hand-held muscle strength tester for peri-ankle strength,the Y-balance for balance,the ankle proprioception tester for ankle proprioception,and the ankle inversion distractor for peroneus longus reaction time were used to test the subjects’ abilities before and after training.Study results:(1)Prior to PNF training,there were no appreciable differences in ankle stability,peri-ankle muscle strength,balance ability,proprioception,or peroneus longus reaction between the PNF and control subjects(P>0.05).(2)After 6 weeks of PNF training,subjects in the PNF group had improved ankle stability compared to those before training,with a significant difference(p<0.01);compared to the control group,the PNF group had improved ankle stability after training,with a significant difference(p<0.05).(3)After 6 weeks of PNF training,compared with the pre-training period,the subjects in the PNF group had improved ankle dorsiflexor strength(P < 0.01),plantarflexor strength(P < 0.01),internal rotation strength(P < 0.01)and external rotation strength(P < 0.01),and the differences were significant;compared with the control group,the PNF group had improved dorsiflexor strength(P < 0.01),plantarflexor strength(P <(P < 0.05),internal rotation strength(P < 0.05)and external rotation strength(P < 0.01)were improved in the PNF group compared with the control group,and the differences were significant.(4)After 6 weeks of PNF training,compared to the pre-training period,subjects in the PNF group showed improved test results for anterolateral(P < 0.01),medial posterior(P < 0.01),posterolateral(P < 0.05)and combined values(P < 0.01)of Y-balance,with significant differences;compared to the control group,the PNF group showed improved test results for posterolateral Y-balance after training(P < 0.05)and composite values(P < 0.05)after training in the PNF group compared to the control group,with a significant difference.(5)After 6 weeks of PNF training,compared to the pre-training period,the subjects in the PNF group showed improved proprioception in the direction of dorsiflexion(P < 0.01),plantarflexion(P < 0.05),inversion(P < 0.01)and valgus(P <0.01),with significant differences;compared to the control group,the PNF group showed improved proprioception in the direction of dorsiflexion(P < 0.05),plantarflexion(P <0.05),inversion(P < 0.05)and valgus(P < 0.05),with significant differences.),inversion(P < 0.05),and valgus(P < 0.05)directions,and the differences were significant.(6)After 6 weeks of PNF training,subjects in the PNF group had a shorter peroneus longus reaction time compared to those before training,with a significant difference(P < 0.01);compared to the control group,the PNF group had a shorter peroneus longus reaction time after training,with a significant difference(P < 0.01).Conclusions:(1)The 6-week neuromuscular proprioceptive facilitation technique shortens the reaction time of the peroneus longus muscle,restores proprioception,improves neuromuscular control of the lower limbs and increases stability in people with functional ankle instability.(2)Six weeks of training in neuromuscular proprioceptive facilitation techniques can facilitate the rehabilitation of peri-ankle muscle strength and dynamic balance in people with functional ankle instability... |
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