اثر تمرينات اصلاحي با تراباند بر مولفه هاي نيروهاي عكس العمل زمين در دانشجويان پسر داراي زانوي ضربدري طي دويدن: يك مطالعه كارآزمايي باليني

The Effect of Corrective Exercises Using Thera-Band on Components of Ground Reaction Force in Boy Students with Genu Valgum during Running: A Clinical Trial Study

زﻣﯿﻨﻪ و ﻫﺪف: ﻣﻔﺼﻞ زاﻧﻮ ﻣﺎﻧﻨﺪ ﻣﻔﺎﺻﻞ دﯾﮕﺮ ﺑﺪن ﺗﺤﺖ ﺗﺄﺛﯿﺮ ﻧﻘﺺﻫﺎ، آﺳﯿﺐﻫﺎ و ﺑﯿﻤﺎريﻫﺎ ﻗﺮار ﻣﯽﮔﯿﺮد. زاﻧﻮي ﺿﺮﺑﺪري ﯾﮑﯽ از ﺷﺎﯾﻊﺗﺮﯾﻦ ﻋﺎرﺿﻪﻫﺎي اﻧﺪام ﺗﺤﺘﺎﻧﯽ ﻣﯽﺑﺎﺷﺪ. ﻫﺪف از ﻣﻄﺎﻟﻌﻪ ﺣﺎﺿﺮ ﺗﻌﯿﯿﻦ اﺛﺮ ﯾﮏ دوره ﺗﻤﺮﯾﻦ اﺻﻼﺣﯽ ﺑﺎ اﺳﺘﻔﺎده از ﺗﺮاﺑﺎﻧﺪ ﺑﺮ ﻣﺆﻟﻔﻪﻫﺎي ﻋﮑﺲاﻟﻌﻤﻞ زﻣﯿﻦ در داﻧﺸﺠﻮﯾﺎن ﭘﺴﺮ داراي زاﻧﻮي ﺿﺮﺑﺪري ﻃﯽ دوﯾﺪن ﻣﯽﺑﺎﺷﺪ. ﻣﻮاد و روشﻫﺎ: ﭘﮋوﻫﺶ ﺣﺎﺿﺮ از ﻧﻮع ﮐﺎرآزﻣﺎﯾﯽ ﺑﺎﻟﯿﻨﯽ ﺑﻮد. 24 داﻧﺸﺠﻮي ﭘﺴﺮ داراي زاﻧﻮي ﺿﺮﺑﺪري )30-20 ﺳﺎل( ﺑﻪﺻﻮرت ﺗﺼﺎدﻓﯽ در دو ﮔﺮوه ﮐﻨﺘﺮل و ﺗﺠﺮﺑﯽ ﻗﺮار ﮔﺮﻓﺘﻨﺪ. ﭘﮋوﻫﺶ ﺣﺎﺿﺮ در ﻣﺮﮐﺰ ﺳﻼﻣﺖ و ﺗﻨﺪرﺳﺘﯽ داﻧﺸﮕﺎه ﻣﺤﻘﻖ اردﺑﯿﻠﯽ در ﺳﺎل 1398 ﺻﻮرت ﭘﺬﯾﺮﻓﺖ. ﺗﻤﺮﯾﻨﺎت اﺻﻼﺣﯽ ﺑﻪ ﻣﺪت 8 ﻫﻔﺘﻪ ﺑﺎ اﺳﺘﻔﺎده از ﺗﺮاﺑﺎﻧﺪ ﺑﺮاي ﮔﺮوه ﺗﺠﺮﺑﯽ اﻧﺠﺎم ﺷﺪ. ﮔﺮوه ﮐﻨﺘﺮل در اﯾﻦ دوره زﻣﺎﻧﯽ ﻫﯿﭽﮕﻮﻧﻪ ﺗﺪاﺧﻞ درﻣﺎﻧﯽ را درﯾﺎﻓﺖ ﻧﻨﻤﻮدﻧﺪ. ﻧﯿﺮوﻫﺎي ﻋﮑﺲاﻟﻌﻤﻞ زﻣﯿﻦ ﺑﻪوﺳﯿﻠﻪ دﺳﺘﮕﺎه ﺻﻔﺤﻪ ﻧﯿﺮو ﺑﺮﺗﮏ ﺛﺒﺖ ﮔﺮدﯾﺪ. ﺟﻬﺖ ﺗﺤﻠﯿﻞﻫﺎي آﻣﺎري از آﻧﺎﻟﯿﺰ وارﯾﺎﻧﺲ ﺑﺎ اﻧﺪازهﻫﺎي ﻣﮑﺮر اﺳﺘﻔﺎده ﺷﺪ. ﯾﺎﻓﺘﻪﻫﺎ: ﻧﺘﺎﯾﺞ ﭘﮋوﻫﺶ ﺣﺎﺿﺮ ﻧﺸﺎن داد ﮐﻪ اﺧﺘﻼف ﻣﻌﻨﯽداري در ﻣﺆﻟﻔﻪ زﻣﺎن رﺳﯿﺪن ﺑﻪ اوج در راﺳﺘﺎي ﻋﻤﻮدي ﻃﯽ ﻓﺎز ﻫﻞ دادن ﮔﺮوه ﺗﺠﺮﺑﯽ ﺑﺎ اﻓﺰاﯾﺶ زﻣﺎن رﺳﯿﺪن ﺑﻪ اوج 5/17 درﺻﺪ را ﻧﺸﺎن داد )0/030=d=0/589 ،P(. ﺳﺎﯾﺮ ﻣﺆﻟﻔﻪﻫﺎي ﻧﯿﺮوي ﻋﮑﺲاﻟﻌﻤﻞ زﻣﯿﻦ در ﮔﺮوه ﺗﺠﺮﺑﯽ ﻫﯿﭻﮔﻮﻧﻪ اﺧﺘﻼف ﻣﻌﻨﯽداري را ﻃﯽ ﭘﺲآزﻣﻮن در ﻣﻘﺎﯾﺴﻪ ﺑﺎ ﭘﯿﺶآزﻣﻮن ﻧﺸﺎن ﻧﺪاد )0/05>P(. ﻧﺘﯿﺠﻪﮔﯿﺮي: ﺗﻤﺮﯾﻨﺎت اﺻﻼﺣﯽ ﻣﻨﺘﺨﺐ ﺑﺎ اﺳﺘﻔﺎده از ﺗﺮاﺑﺎﻧﺪ ﺗﻮاﻧﺴﺘﻨﺪ زﻣﺎن رﺳﯿﺪن ﺑﻪ اوج ﻧﯿﺮوي ﻋﻤﻮدي ﻃﯽ ﻓﺎز ﻫﻞ دادن را ﻃﯽ ﭘﺲ آزﻣﻮن در ﻣﻘﺎﯾﺴﻪ ﺑﺎ ﭘﯿﺶآزﻣﻮن اﻓﺰاﯾﺶ دﻫﻨﺪ. اﯾﻦ اﻓﺰاﯾﺶ اﺣﺘﻤﺎﻻً ﺑﻪ ﻋﻠﺖ ﻃﻮﻻﻧﯽﺗﺮ ﺷﺪن ﻣﯿﺰان ﺑﺮﺧﻮرد ﭘﺎ ﺑﺎ ﺳﻄﺢ ﺑﻮده اﺳﺖ ﮐﻪ ﻣﯿﺰان ﻧﯿﺮوﻫﺎي وارده ﺑﺮ ﭘﺎ را ﮐﺎﻫﺶ ﻣﯽدﻫﺪ.

Knee joint, like other joints in the body, is affected by defects, injuries and diseases. Genu valgum is one of the most common lower limb complications. The purpose of the present study was to determine the effects of corrective exercises using Thera-Band on components of ground reaction force in boy students with genu valgum during running. Materials and Methods: The present study was a clinical trial. 24 male students (20-30 years old) were randomly divided into control and experimental groups. The present study was conducted at University of Mohaghegh Ardabili Health and Wellness Center in 2019. Corrective exercises were performed for 8 weeks using Thera-band for the experimental group. The control group did not receive any treatment intervention during this period. The ground reaction forces were recorded by a force plate. Data were analyzed using repeated measures ANOVA. Results: The results of this study showed a significant difference in the time to peak in the vertical direction during the push off phase of the experimental group (5.17%) (p=0.030, d=0.589). In the experimental group, the other components of ground reaction forces did not demonstrate any significant effect during post-test than that in the pretest (p>0.05). Conclusion: The selected corrective exercises using the Thera-band were able to increase the time to peak of the vertical force during the push off phase during the post-test compared to the pre-test. This increase was probably due to the longer contact of foot with the surface, which reduces the amount of force applied to the foot.