title: Effects of compliance on trunk and hip integrative neuromuscular training on hip abductor strength in female athletes.
abstract: Recent studies demonstrate the link between reduced hip abductor strength and increased risk for knee injury such as patellofemoral pain syndrome in women athletes. Meta-analytic reports indicate that the efficacy of integrative neuromuscular training (INT) is associated with compliance to the prescribed programming. Thus, the purpose was to investigate the compliance effects of a trunk and hip-focused INT exercises on hip abductor strength in young women athletes. In a controlled laboratory study design, 21 high school women volleyball players (mean age = 15.6 ± 1.4 years, weight = 64.0 ± 7.4 kg, height = 171.5 ± 7.0 cm) completed isokinetic hip abductor strength testing in pre- and postintervention, which consisted of 5 phases of supervised progressive trunk and hip-focused INT exercises twice a week for 10 weeks. The compliance effects were analyzed based on the changed hip abductor strength values between pre- and postintervention and 3 different compliance groups using 1-way analysis of variance and Pearson's correlation coefficients. The participants in the high-compliance group demonstrated significant hip abductor peak torque increases compared with noncompliance group (p = 0.02), but not between moderate-compliance and noncompliance groups (p = 0.27). The moderate correlation coefficient value (r = 0.56) was recorded between the isokinetic hip abductor peak torque changes and the 3 compliance groups. Because of the observed significant effects and moderate linear association, the effectiveness of a trunk and hip-focused INT protocol to improve hip abduction strength seems dependent on compliance. Compliance of trunk and hip-focused INT is an important aspect of increasing hip abductor strength increase in young women athletes.
authors.affiliation: 1Division of Sports Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; 2Sports Medicine Biodynamics Center and Human Performance Laboratory, Cincinnati, Ohio; 3The Michele Center for Sports Injury Prevention, Waltham, Massachusetts; 4Division of Sports Medicine, Boston Children's Hospital, Boston, Massachusetts; 5Department of Pediatrics and Orthopaedic Surgery, University of Cincinnati, Cincinnati, Ohio; 6Department of Biostatistics, College of Public Health, University of Kentucky, Lexington, Kentucky; 7Sports Medicine Sports Health & Performance Institute, The Ohio State University, Columbus, Ohio; 8Athletic Training Division, The Ohio State University, Columbus, Ohio; and 9Departments of Physiology and Cell Biology, Orthopaedic Surgery Family Medicine and Biomedical Engineering, Sports Medicine, The Ohio State University, Columbus, Ohio.
authors.forename: Dai
authors.initials: D
authors.lastname: Sugimoto
authors.forename: Gregory D
authors.initials: GD
authors.lastname: Myer
authors.forename: Heather M
authors.initials: HM
authors.lastname: Bush
authors.forename: Timothy E
authors.initials: TE
authors.lastname: Hewett
mesh_terms: D000293:Adolescent; D005260:Female; D006615:Hip; D006801:Humans; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010349:Patient Compliance; D064797:Physical Conditioning, Human / Q000379:methods / Q000502:physiology*; D011446:Prospective Studies; D013848:Thigh; D019415:Torque; D060726:Torso
references.citation: Scand J Med Sci Sports. 2008 Oct;18(5):605-14
references.pmid: 18208428
references.citation: Clin J Sport Med. 2004 Mar;14(2):88-94
references.pmid: 15014342
references.citation: J Orthop Sports Phys Ther. 2003 Nov;33(11):671-6
references.pmid: 14669962
references.citation: Am J Sports Med. 2012 Feb;40(2):300-6
references.pmid: 22064608
references.citation: Med Sci Sports Exerc. 2012 Jan;44(1):135-45
references.pmid: 21705921
references.citation: Am J Sports Med. 2005 Jul;33(7):1003-10
references.pmid: 15888716
references.citation: BMC Musculoskelet Disord. 2007 May 08;8:39
references.pmid: 17488502
references.citation: J Athl Train. 2009 Jan-Feb;44(1):7-13
references.pmid: 19180213
references.citation: Clin Biomech (Bristol, Avon). 2006 Jan;21(1):33-40
references.pmid: 16198030
references.citation: Am J Sports Med. 1996 Nov-Dec;24(6):765-73
references.pmid: 8947398
references.citation: J Athl Train. 2009 Sep-Oct;44(5):490-6
references.pmid: 19771287
references.citation: Am J Sports Med. 2011 Jan;39(1):154-63
references.pmid: 20929936
references.citation: J Orthop Sports Phys Ther. 2008 Aug;38(8):448-56
references.pmid: 18678957
references.citation: Am J Sports Med. 2009 Nov;37(11):2108-16
references.pmid: 19797162
references.citation: J Athl Train. 2011 Mar-Apr;46(2):142-9
references.pmid: 21391799
references.citation: Clin Biomech (Bristol, Avon). 2010 Aug;25(7):700-7
references.pmid: 20466469
references.citation: Am J Sports Med. 2005 Apr;33(4):492-501
references.pmid: 15722287
references.citation: J Strength Cond Res. 2006 May;20(2):345-53
references.pmid: 16686562
references.citation: J Athl Train. 2012 Nov-Dec;47(6):714-23
references.pmid: 23182020
references.citation: Clin Sports Med. 2008 Jul;27(3):425-48, ix
references.pmid: 18503876
references.citation: J Orthop Sports Phys Ther. 2005 May;35(5):292-9
references.pmid: 15966540
references.citation: Br Med Bull. 2009;92:95-121
references.pmid: 19783530
references.citation: Arch Orthop Trauma Surg. 2005 Nov;125(9):614-21
references.pmid: 15703919
references.citation: Br J Sports Med. 2010 Sep;44(11):787-93
references.pmid: 20551159
references.citation: J Strength Cond Res. 2005 Feb;19(1):51-60
references.pmid: 15705045
references.citation: Med Sci Sports Exerc. 2007 Aug;39(8):1227-32
references.pmid: 17762354
references.citation: J Orthop Sports Phys Ther. 2011 Aug;41(8):560-70
references.pmid: 21654093
references.citation: Phys Ther Sport. 2011 Aug;12(3):133-9
references.pmid: 21802040
references.citation: Clin J Sport Med. 2003 Mar;13(2):71-8
references.pmid: 12629423
references.citation: Br J Sports Med. 2009 Jun;43(6):417-22
references.pmid: 19372088