The effect of a core stability, m. gluteus medius and proprioceptive exercise program on dynamic postural control in netball players

[摘要] English: Dynamicposturalcontrolistheabilitytoperformafunctionaltaskwithpurposefulmovementsthat translates the body's centre of gravity without compromising a stable base of support.The functional task might involve jumping or hopping to a new location and immediately attempting to remain as still as possible or attempting to create movements such as reaching or throwing without compromising the baseofsupport(Winter,PatlaandFrank,1990;KahleandGribble,2009,Gribble,HertelandPlisky, 2012).Maintainingdynamic posturalcontrolis essential for netballplayersasnetballplayers frequently find themselvesononeleghavingtomakeanaccuratepass.ResearchbyFerreiraandSpamer(2010) evaluated the physical profile of elite university netball players and found poor balance in these netball players during pre-season.No literature could be found regarding studies investigating a programme that utilized the combination ofcorestability,m.gluteusmedius(GMed)strengtheningandproprioceptivebalanceexerciseson dynamicposturalcontrolorstudiesinvestigatingtheeffectofanexerciseprogramme ondynamic posturalcontrolinnetballplayers.Theresearchstudywasundertakentodetermineifanexercise programme thatincorporatescorestability,m.GMedstrengtheningandproprioceptivebalance exerciseswouldleadtoa significant improvement (p˂0.05) indynamicposturalcontrolinagroupof netball players.A cross-over randomised clinical trial was performed.Sixteen female university netball players selected in the topjunior groupparticipated inthisstudy. Participants were randomlydivided intwo groups. GroupAparticipated three timesa week for six weeks in theexercise programme whilegroup B was considered as the control group after which the roles were reversed.The simple Star Excursion Balance Test (SEBT) with three trials and four directions were used to measure dynamic postural control of the participants.All participants were assessed at baseline, after six weeks and after 12 weeks.Participants from both groups were tested simultaneously, and the data collector andassistantwereblindedtowhichgrouptheparticipantsbelonged. Datawereanalyzedbya biostatistician using student's and paired t-tests. Dynamic postural control as measured with the SEBT demonstrated a statistically significantimprovement (p<0.05) across three reach directions (anterior, medial and posterior) in a group of netballplayers post participation in an exercise programme that incorporated core stability, m.GMedstrengthening and proprioceptive balance exercises. The study proposes that an exercise programmethat incorporates core stability, m.GMed and proprioceptive balance exercises could be beneficial forimproving dynamic postural control in a group of netball players.The results of the study provided substantial evidence for the use of a combination of core stability,m.GMed strengthening and proprioceptive balance exercises in programmes rehabilitating netballplayers with poor dynamic postural control. The present study also provides a baseline for furtherresearch whether an exercise programme that incorporated core stability, m.GMed strengthening andproprioceptive balance exercises would contribute towards improved performance and injuryprevention in netball players. The effectiveness of the exercise programme described in the presentstudy could be implemented and investigated in other sporting codes requiring dynamic posturalcontrol. Netball players can also confidently use the developed exercise programme in the presentstudy to eliminate shortcomings in their physical profile, with regards to dynamic postural control.

[发布机构] University of the Free State