메뉴 건너뛰기




Volumn 25, Issue 3, 2013, Pages 271-276

A longitudinal evaluation of maturational effects on lower extremity strength in female adolescent athletes

Author keywords

Adolescent; female; puberty physiology; strength

Indexed keywords

ADOLESCENT; ADOLESCENT DEVELOPMENT; ATHLETE; CHILD; FEMALE; HIP; HUMAN; KNEE; LEG; LONGITUDINAL STUDY; MUSCLE STRENGTH; PHYSIOLOGY; QUADRICEPS FEMORIS MUSCLE; SKELETAL MUSCLE; WOUNDS AND INJURIES; ARTICLE; INJURY;

EID: 84879994959     PISSN: 08985669     EISSN: 1538005X     Source Type: Journal    
DOI: 10.1097/PEP.0b013e31828e1e9d     Document Type: Article
Times cited : (49)

References (50)
  • 1
    • 61349109482 scopus 로고    scopus 로고
    • Longitudinal assessment of noncontact anterior cruciate ligament injury risk factors during mat-urationinafemaleathlete: Acasereport
    • Myer GD, Ford KR, Divine JG, et al. Longitudinal assessment of noncontact anterior cruciate ligament injury risk factors during mat- urationinafemaleathlete: acasereport. J Athl Train. 2009;44(1):101-109.
    • (2009) J Athl Train. , vol.44 , Issue.1 , pp. 101-109
    • Myer, G.D.1    Ford, K.R.2    Divine, J.G.3
  • 2
    • 0022481625 scopus 로고
    • Sports-related injuries in children. A study oftheir characteristics, frequency, and severity, with comparison to other types ofaccidental injuries
    • Tursz A, Crost M. Sports-related injuries in children. A study oftheir characteristics, frequency, and severity, with comparison to other types ofaccidental injuries. Am J Sports Med. 1986;14(4):294-299.
    • (1986) Am J Sports Med. , vol.14 , Issue.4 , pp. 294-299
    • Tursz, A.1    Crost, M.2
  • 3
    • 77955664553 scopus 로고    scopus 로고
    • The incidence and poten-tial pathomechanics of patellofemoral pain in female athletes
    • Myer GD, Ford KR, Barber Foss KD, et al. The incidence and poten-tial pathomechanics of patellofemoral pain in female athletes. Clin Biomech (Bristol, Avon). 2010;25(7):700-707.
    • (2010) Clin Biomech (Bristol, Avon). , vol.25 , Issue.7 , pp. 700-707
    • Myer, G.D.1    Ford, K.R.2    Barber Foss, K.D.3
  • 4
    • 0028799401 scopus 로고
    • Knee injury patterns among men and women in collegiate basketball and soccer. NCAA data and review ofliterature
    • Arendt E, Dick R. Knee injury patterns among men and women in collegiate basketball and soccer. NCAA data and review ofliterature. Am J Sports Med. 1995;23(6):694-701.
    • (1995) Am J Sports Med. , vol.23 , Issue.6 , pp. 694-701
    • Arendt, E.1    Dick, R.2
  • 5
    • 0022528454 scopus 로고
    • Athleticinjuries: Comparisonbyage, sport, and gender
    • De Haven KE, Lintner DM.Athleticinjuries: comparisonbyage, sport, and gender. Am J Sports Med. 1986;14(3):218-224.
    • (1986) Am J Sports Med. , vol.14 , Issue.3 , pp. 218-224
    • De Haven, K.E.1    Lintner, D.M.2
  • 6
    • 0002297057 scopus 로고    scopus 로고
    • Anterior cruciate ligament injury in female athletes: Epi-demiology
    • Ireland ML. Anterior cruciate ligament injury in female athletes: epi-demiology. J Athl Train. 1999;34(2):150-154.
    • (1999) J Athl Train. , vol.34 , Issue.2 , pp. 150-154
    • Ireland, M.L.1
  • 8
    • 0036099986 scopus 로고    scopus 로고
    • Diagnosis and treatment ofpatients with patellofemoral pain
    • Fulkerson JP. Diagnosis and treatment ofpatients with patellofemoral pain. Am J Sports Med. 2002;30(3):447-456.
    • (2002) Am J Sports Med. , vol.30 , Issue.3 , pp. 447-456
    • Fulkerson, J.P.1
  • 9
    • 0032425593 scopus 로고    scopus 로고
    • Patellofemoral pain syndrome in athletes: A 5.7-year retrospective follow-up study of250 athletes
    • Blond L, Hansen L. Patellofemoral pain syndrome in athletes: a 5.7-year retrospective follow-up study of250 athletes. Acta Orthop Belg. 1998;64(4):393-400.
    • (1998) Acta Orthop Belg. , vol.64 , Issue.4 , pp. 393-400
    • Blond, L.1    Hansen, L.2
  • 10
    • 77958160053 scopus 로고    scopus 로고
    • Biomechanical measures during landing and postural stability predict second anterior cruciate ligament injury after anterior cruciate ligament reconstruction and return to sport
    • Paterno MV, Schmitt LC, Ford KR, et al. Biomechanical measures during landing and postural stability predict second anterior cruciate ligament injury after anterior cruciate ligament reconstruction and return to sport. Am J Sports Med. 2010;38(10):1968-1978.
    • (2010) Am J Sports Med. , vol.38 , Issue.10 , pp. 1968-1978
    • Paterno, M.V.1    Schmitt, L.C.2    Ford, K.R.3
  • 11
    • 77953538131 scopus 로고    scopus 로고
    • Differences in tibial ro-tation during walking in ACL reconstructed and healthy contralateral knees
    • Scanlan SF, Chaudhari AM, Dyrby CO, et al. Differences in tibial ro-tation during walking in ACL reconstructed and healthy contralateral knees. J Biomech. 2010;43(9):1817-1822.
    • (2010) J Biomech. , vol.43 , Issue.9 , pp. 1817-1822
    • Scanlan, S.F.1    Chaudhari, A.M.2    Dyrby, C.O.3
  • 12
    • 24344482432 scopus 로고    scopus 로고
    • Is anterior knee pain a predispos- ingfactortopatellofemoralosteoarthritis?
    • Utting MR, Davies G, Newman JH. Is anterior knee pain a predispos-ingfactortopatellofemoralosteoarthritis? Knee. 2005;12(5):362-365.
    • (2005) Knee. , vol.12 , Issue.5 , pp. 362-365
    • Utting, M.R.1    Davies, G.2    Newman, J.H.3
  • 13
    • 62249162274 scopus 로고    scopus 로고
    • Gait mechanics influence healthy cartilage morphology and osteoarthritis of the knee
    • Andriacchi TP, Koo S, Scanlan SF. Gait mechanics influence healthy cartilage morphology and osteoarthritis of the knee. J Bone Joint Surg Am. 2009;91(suppl 1):95-101.
    • (2009) J Bone Joint Surg Am. , vol.91 , Issue.SUPPL. 1 , pp. 95-101
    • Andriacchi, T.P.1    Koo, S.2    Scanlan, S.F.3
  • 14
    • 80051901369 scopus 로고    scopus 로고
    • Whentoinitiateintegrative neuromuscular training to reduce sports-related injuries and enhance health in youth?
    • Myer GD, Faigenbaum AD, Ford KR, et al. Whentoinitiateintegrative neuromuscular training to reduce sports-related injuries and enhance health in youth? Curr Sports Med Rep. 2011;10(3):155-166.
    • (2011) Curr Sports Med Rep. , vol.10 , Issue.3 , pp. 155-166
    • Myer, G.D.1    Faigenbaum, A.D.2    Ford, K.R.3
  • 15
    • 80054037442 scopus 로고    scopus 로고
    • Exercise deficit disorder in youth: A hidden truth
    • Faigenbaum AD, Stracciolini A, Myer GD. Exercise deficit disorder in youth: a hidden truth. Acta Paediatr. 2011;100(11):1423-1425.
    • (2011) Acta Paediatr. , vol.100 , Issue.11 , pp. 1423-1425
    • Faigenbaum, A.D.1    Stracciolini, A.2    Myer, G.D.3
  • 16
    • 3543040003 scopus 로고    scopus 로고
    • Decrease in neuromuscular control about the knee with maturation in female athletes
    • Hewett TE, Myer GD, Ford KR. Decrease in neuromuscular control about the knee with maturation in female athletes. J Bone Joint Surg Am. 2004;86-A(8):1601-1608.
    • (2004) J Bone Joint Surg Am. , vol.86 A , Issue.8 , pp. 1601-1608
    • Hewett, T.E.1    Myer, G.D.2    Ford, K.R.3
  • 17
    • 33646337929 scopus 로고    scopus 로고
    • Maturation leads to gen-der differences in landing force and vertical jump performance: A longitudinal study
    • Quatman CE, Ford KR, Myer GD, et al. Maturation leads to gen-der differences in landing force and vertical jump performance: a longitudinal study. Am J Sports Med. 2006;34(5):806-813.
    • (2006) Am J Sports Med. , vol.34 , Issue.5 , pp. 806-813
    • Quatman, C.E.1    Ford, K.R.2    Myer, G.D.3
  • 18
    • 77955664483 scopus 로고    scopus 로고
    • Longitudinal effects of maturation on lower extremityjoint stiffness in adolescent athletes
    • Ford KR, Myer GD, Hewett TE. Longitudinal effects of maturation on lower extremityjoint stiffness in adolescent athletes. Am J Sports Med. 2010;38(9):1829-1837.
    • (2010) Am J Sports Med. , vol.38 , Issue.9 , pp. 1829-1837
    • Ford, K.R.1    Myer, G.D.2    Hewett, T.E.3
  • 19
    • 77957370738 scopus 로고    scopus 로고
    • Longitudinal sex differences during landing in knee abduction in young athletes
    • Ford KR, Shapiro R, Myer GD, et al. Longitudinal sex differences during landing in knee abduction in young athletes. Med Sci Sports Exerc. 2010;42(10):1923-1931.
    • (2010) Med Sci Sports Exerc. , vol.42 , Issue.10 , pp. 1923-1931
    • Ford, K.R.1    Shapiro, R.2    Myer, G.D.3
  • 20
    • 11344257359 scopus 로고    scopus 로고
    • Gender differences in the kinematics of unanticipated cutting in young athletes
    • Ford KR, Myer GD, Toms HE,. Gender differences in the kinematics of unanticipated cutting in young athletes. Med Sci Sports Exerc. 2005;37(1):124-129.
    • (2005) Med Sci Sports Exerc. , vol.37 , Issue.1 , pp. 124-129
    • Ford, K.R.1    Myer, G.D.2    Toms, H.E.3
  • 21
    • 33645745504 scopus 로고    scopus 로고
    • Gender differences in hip adduction motion and torque during a single-leg agility maneuver
    • Hewett TE, Ford KR, Myer GD, et al. Gender differences in hip adduction motion and torque during a single-leg agility maneuver. J Orthop Res. 2006;24(3):416-421.
    • (2006) J Orthop Res. , vol.24 , Issue.3 , pp. 416-421
    • Hewett, T.E.1    Ford, K.R.2    Myer, G.D.3
  • 23
    • 0033825556 scopus 로고    scopus 로고
    • Motor skills of typically developing adoles-cents: Awkwardness or improvement?
    • Davies PL, Rose JD. Motor skills of typically developing adoles-cents: awkwardness or improvement? Phys Occup Ther Pediatr. 2000;20(1):19-42.
    • (2000) Phys Occup Ther Pediatr. , vol.20 , Issue.1 , pp. 19-42
    • Davies, P.L.1    Rose, J.D.2
  • 24
    • 42649118803 scopus 로고    scopus 로고
    • The effects of gender and pubertal status on generalized joint laxity in young athletes
    • Quatman CE, Ford KR, Myer GD, et al. The effects of gender and pubertal status on generalized joint laxity in young athletes. J Sci Med Sport. 2008;11(3):257-263.
    • (2008) J Sci Med Sport. , vol.11 , Issue.3 , pp. 257-263
    • Quatman, C.E.1    Ford, K.R.2    Myer, G.D.3
  • 25
    • 66649113164 scopus 로고    scopus 로고
    • The relationship ofham-strings and quadriceps strength to anterior cruciate ligament injury in female athletes
    • Myer GD, Ford KR, Barber Foss KD, et al. The relationship ofham-strings and quadriceps strength to anterior cruciate ligament injury in female athletes. Clin J Sport Med. 2009;19(1):3-8.
    • (2009) Clin J Sport Med. , vol.19 , Issue.1 , pp. 3-8
    • Myer, G.D.1    Ford, K.R.2    Barber Foss, K.D.3
  • 27
    • 46749099327 scopus 로고    scopus 로고
    • Investigating isolated neu-romuscular control contributions to non-contact anterior cruciate ligament injury risk via computer simulation methods
    • Mc Lean SG, Huang X, van den Bogert AJ. Investigating isolated neu-romuscular control contributions to non-contact anterior cruciate ligament injury risk via computer simulation methods. Clin Biomech (Bristol, Avon). 2008;23(7):926-936.
    • (2008) Clin Biomech (Bristol, Avon). , vol.23 , Issue.7 , pp. 926-936
    • Mc Lean, S.G.1    Huang, X.2    Van Den Bogert, A.J.3
  • 28
    • 49849088975 scopus 로고    scopus 로고
    • Hamstrings to quadriceps peak torque ratios diverge between sexes with increasing isokinetic angular velocity
    • Hewett TE, Myer GD, Zazulak BT. Hamstrings to quadriceps peak torque ratios diverge between sexes with increasing isokinetic angular velocity. J Sci Med Sport. 2008;11(5):452-459.
    • (2008) J Sci Med Sport. , vol.11 , Issue.5 , pp. 452-459
    • Hewett, T.E.1    Myer, G.D.2    Zazulak, B.T.3
  • 29
    • 44149094478 scopus 로고    scopus 로고
    • A longitudinal examination of hip abduction strength in adolescent males and females
    • Brent JL, Myer GD, Ford KR, et al. A longitudinal examination of hip abduction strength in adolescent males and females. Med Sci Sports Exerc. 2008;39(5):550-551.
    • (2008) Med Sci Sports Exerc. , vol.39 , Issue.5 , pp. 550-551
    • Brent, J.L.1    Myer, G.D.2    Ford, K.R.3
  • 30
    • 47349119910 scopus 로고    scopus 로고
    • A pilot study to determine the effect of trunk and hip focused neuromuscular training on hip and knee isokinetic strength
    • Myer GD, Brent JL, Ford KR, et al. A pilot study to determine the effect of trunk and hip focused neuromuscular training on hip and knee isokinetic strength. Br J Sports Med. 2008;42(7):614-619.
    • (2008) Br J Sports Med. , vol.42 , Issue.7 , pp. 614-619
    • Myer, G.D.1    Brent, J.L.2    Ford, K.R.3
  • 31
    • 84875007974 scopus 로고    scopus 로고
    • The effect of sex and age on isokinetic hip-abduction torques
    • Brent J, Myer GD, Ford KR, et al. The effect of sex and age on isokinetic hip-abduction torques. J Sport Rehabil. 2012;22(1): 41-46.
    • (2012) J Sport Rehabil. , vol.22 , Issue.1 , pp. 41-46
    • Brent, J.1    Myer, G.D.2    Ford, K.R.3
  • 32
    • 0021685399 scopus 로고
    • Mechanical factors in the incidence of knee pain in adolescents and young adults
    • Fairbank JC, Pynsent PB, van Poortvliet JA, et al. Mechanical factors in the incidence of knee pain in adolescents and young adults. J Bone Joint Surg Br. 1984;66(5):685-693.
    • (1984) J Bone Joint Surg Br. , vol.66 , Issue.5 , pp. 685-693
    • Fairbank, J.C.1    Pynsent, P.B.2    Van Poortvliet, J.A.3
  • 33
    • 15744368166 scopus 로고    scopus 로고
    • Biomechanical measures ofneu-romuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes: A prospective study
    • Hewett TE, Myer GD, Ford KR, et al. Biomechanical measures ofneu-romuscular control and valgus loading of the knee predict anterior cruciate ligament injury risk in female athletes: a prospective study. Am J Sports Med. 2005;33(4):492-501.
    • (2005) Am J Sports Med. , vol.33 , Issue.4 , pp. 492-501
    • Hewett, T.E.1    Myer, G.D.2    Ford, K.R.3
  • 34
    • 31444440215 scopus 로고    scopus 로고
    • Anterior cruciate ligament injuries in female athletes: Part 1, mechanisms and risk factors
    • Hewett TE, Myer GD, Ford KR. Anterior cruciate ligament injuries in female athletes: part 1, mechanisms and risk factors. Am J Sports Med. 2006;34(2):299-311.
    • (2006) Am J Sports Med. , vol.34 , Issue.2 , pp. 299-311
    • Hewett, T.E.1    Myer, G.D.2    Ford, K.R.3
  • 35
    • 0034170875 scopus 로고    scopus 로고
    • Motor performance status in 10 to 17-year-old Estonian girls
    • Loko J, Aule R, Sikkut T, et al. Motor performance status in 10 to 17-year-old Estonian girls. Scand JMed Sci Sports. 2000;10(2):109-113.
    • (2000) Scand JMed Sci Sports. , vol.10 , Issue.2 , pp. 109-113
    • Loko, J.1    Aule, R.2    Sikkut, T.3
  • 36
    • 84862895808 scopus 로고    scopus 로고
    • A system-atic review of sensorimotor function during adolescence: A devel-opmental stage of increased motor awkwardness?
    • Quatman-Yates CC, Quatman CE, Meszaros AJ, et al. A system-atic review of sensorimotor function during adolescence: a devel-opmental stage of increased motor awkwardness?. Br J Sports Med. 2012;46(9):649-655.
    • (2012) Br J Sports Med. , vol.46 , Issue.9 , pp. 649-655
    • Quatman-Yates, C.C.1    Quatman, C.E.2    Meszaros, A.J.3
  • 38
    • 0034939877 scopus 로고    scopus 로고
    • The development ofbalance control in children: Comparisons of EMG and kinetic vari-ables and chronological and developmental groupings
    • Sundermier L, Woollacott M, Roncesvalles N, et al. The development ofbalance control in children: comparisons of EMG and kinetic vari-ables and chronological and developmental groupings. Exp Brain Res. 2001;136(3):340-350.
    • (2001) Exp Brain Res. , vol.136 , Issue.3 , pp. 340-350
    • Sundermier, L.1    Woollacott, M.2    Roncesvalles, N.3
  • 39
    • 0034933728 scopus 로고    scopus 로고
    • Neuromotor development from 5 to 18 years. Part 1: Timed performance
    • Largo RH, Caflisch JA, Hug F, et al. Neuromotor development from 5 to 18 years. Part 1: timed performance. Dev Med Child Neurol. 2001;43(7):436-443.
    • (2001) Dev Med Child Neurol. , vol.43 , Issue.7 , pp. 436-443
    • Largo, R.H.1    Caflisch, J.A.2    Hug, F.3
  • 40
    • 0037809549 scopus 로고    scopus 로고
    • Neuromotor development from kindergarten age to adolescence: Developmental course and variabil-ity
    • Largo RH, Fischer JE, Rousson V. Neuromotor development from kindergarten age to adolescence: developmental course and variabil-ity. Swiss Med Wkly. 2003;133(13/14):193-199.
    • (2003) Swiss Med Wkly. , vol.133 , Issue.13-14 , pp. 193-199
    • Largo, R.H.1    Fischer, J.E.2    Rousson, V.3
  • 41
    • 0034784580 scopus 로고    scopus 로고
    • Non-linear development of postural control and strategy use in young children: A longitudinal study
    • Kirshenbaum N, Riach CL, Starkes JL. Non-linear development of postural control and strategy use in young children: a longitudinal study. Exp Brain Res. 2001;140(4):420-431.
    • (2001) Exp Brain Res. , vol.140 , Issue.4 , pp. 420-431
    • Kirshenbaum, N.1    Riach, C.L.2    Starkes, J.L.3
  • 42
    • 80053603817 scopus 로고    scopus 로고
    • Integrative training for chil-dren and adolescents: Techniques and practices for reducing sports-related injuries and enhancing athletic performance
    • Myer GD, Faigenbaum AD, Chu DA, et al. Integrative training for chil-dren and adolescents: techniques and practices for reducing sports-related injuries and enhancing athletic performance. Phys Sportsmed. 2011;39(1):74-84.
    • (2011) Phys Sportsmed. , vol.39 , Issue.1 , pp. 74-84
    • Myer, G.D.1    Faigenbaum, A.D.2    Chu, D.A.3
  • 43
    • 15744369503 scopus 로고    scopus 로고
    • Neuromuscular training im-proves performance and lower-extremity biomechanics in female ath-letes
    • Myer GD, Ford KR, Palumbo JP, et al. Neuromuscular training im-proves performance and lower-extremity biomechanics in female ath-letes. J Strength Cond Res. 2005;19(1):51-60.
    • (2005) J Strength Cond Res. , vol.19 , Issue.1 , pp. 51-60
    • Myer, G.D.1    Ford, K.R.2    Palumbo, J.P.3
  • 44
    • 32944478839 scopus 로고    scopus 로고
    • The effects of ply-ometric versus dynamic stabilization and balance training on lower extremity biomechanics
    • Myer GD, Ford KR, Mc Lean SG, et al. The effects of ply-ometric versus dynamic stabilization and balance training on lower extremity biomechanics. Am J Sports Med. 2006;34(3): 490-498.
    • (2006) Am J Sports Med. , vol.34 , Issue.3 , pp. 490-498
    • Myer, G.D.1    Ford, K.R.2    Mc Lean, S.G.3
  • 45
    • 34249027978 scopus 로고    scopus 로고
    • Differential neuromuscular train-ing effects on ACL injury risk factors in "high-risk" versus "low-risk" athletes
    • Myer GD, Ford KR, Brent JL, et al. Differential neuromuscular train-ing effects on ACL injury risk factors in "high-risk" versus "low-risk" athletes. BMCMusculoskelet Disord. 2007;8(39):1-7.
    • (2007) BMCMusculoskelet Disord. , vol.8 , Issue.39 , pp. 1-7
    • Myer, G.D.1    Ford, K.R.2    Brent, J.L.3
  • 46
    • 0029807567 scopus 로고    scopus 로고
    • Plyometric training in female athletes. Decreased impact forces and increased hamstring torques
    • Hewett TE, Stroupe AL, Nance TA, et al. Plyometric training in female athletes. Decreased impact forces and increased hamstring torques. Am J Sports Med. 1996;24(6):765-773.
    • (1996) Am J Sports Med. , vol.24 , Issue.6 , pp. 765-773
    • Hewett, T.E.1    Stroupe, A.L.2    Nance, T.A.3
  • 47
    • 84870369307 scopus 로고    scopus 로고
    • Compliance with neuro-muscular training on ACL injury risk reduction in female athletes: A meta-analysis
    • Sugimoto D, Myer GD, Bush HM, et al. Compliance with neuro-muscular training on ACL injury risk reduction in female athletes: a meta-analysis. J Athl Train. 2012;47(6):714-723.
    • (2012) J Athl Train. , vol.47 , Issue.6 , pp. 714-723
    • Sugimoto, D.1    Myer, G.D.2    Bush, H.M.3
  • 48
    • 64549086729 scopus 로고    scopus 로고
    • Preseason neuromuscular exercise program reduces sports-related knee pain in female adoles-centathletes
    • La Bella CR, Huxford MR, Smith TL, et al. Preseason neuromuscular exercise program reduces sports-related knee pain in female adoles-centathletes. Clin Pediatr (Phila). 2009;48(3):327-330.
    • (2009) Clin Pediatr (Phila). , vol.48 , Issue.3 , pp. 327-330
    • La Bella, C.R.1    Huxford, M.R.2    Smith, T.L.3
  • 49
    • 0141865658 scopus 로고    scopus 로고
    • Valgus knee motion during landing in high school female and male basketball players
    • Ford KR, Myer GD, Hewett TE. Valgus knee motion during landing in high school female and male basketball players. Med Sci Sports Exerc. 2003;35(10):1745-1750.
    • (2003) Med Sci Sports Exerc. , vol.35 , Issue.10 , pp. 1745-1750
    • Ford, K.R.1    Myer, G.D.2    Hewett, T.E.3
  • 50
    • 28444445629 scopus 로고    scopus 로고
    • A comparison of dynamic coronal plane excursion between matched male and female athletes when performing single leg landings
    • Ford KR, Myer GD, Smith RL, et al. A comparison of dynamic coronal plane excursion between matched male and female athletes when performing single leg landings. Clin Biomech (Bristol, Avon). 2006;21(1):33-40.
    • (2006) Clin Biomech (Bristol, Avon). , vol.21 , Issue.1 , pp. 33-40
    • Ford, K.R.1    Myer, G.D.2    Smith, R.L.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.