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Titolo:
Giving way event during a combined stepping and crossover cutting task in an individual with anterior cruciate ligament deficiency
Autore:
Houck, J; Yack, HJ;
Indirizzi:
Ithaca Coll, Sch Hlth Sci & Human Performance, Dept Phys Therapy, Rochester, NY 14623 USA Ithaca Coll Rochester NY USA 14623 Phys Therapy, Rochester, NY 14623 USA Univ Iowa, Grad Program Phys Therapy, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 am Phys Therapy, Iowa City, IA 52242 USA
Titolo Testata:
JOURNAL OF ORTHOPAEDIC & SPORTS PHYSICAL THERAPY
fascicolo: 9, volume: 31, anno: 2001,
pagine: 481 - 489
SICI:
0190-6011(200109)31:9<481:GWEDAC>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
KNEE-JOINT; PIVOT SHIFT; IN-VIVO; ACTIVE INDIVIDUALS; QUADRICEPS FEMORIS; KINEMATIC ANALYSIS; ACL INJURY; REHABILITATION; RECONSTRUCTION; STABILITY;
Keywords:
anterior cruciate ligament deficiency; kinematics; knee kinetics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
75
Recensione:
Indirizzi per estratti:
Indirizzo: Houck, J Ithaca Coll, Sch Hlth Sci & Human Performance, Dept Phys Therapy,300 E River Rd Suite 1-101, Rochester, NY 14623 USA Ithaca Coll 300 E River Rd Suite 1-101 Rochester NY USA 14623 USA
Citazione:
J. Houck e H.J. Yack, "Giving way event during a combined stepping and crossover cutting task in an individual with anterior cruciate ligament deficiency", J ORTHOP SP, 31(9), 2001, pp. 481-489

Abstract

Study Design: Case study. Objective: To compare knee kinematics and moments of nongiving way trials to a giving way trial during a combined stepping and crossover cutting activity. Background: The knee kinematics and moments associated with giving way episodes suggest motor control strategies that lead to instability and recovery of stability during movement. Methods and Measures: A 27-year-old woman with anterior cruciate ligament deficiency reported giving way while performing a combined stepping and crossover cutting activity. A motion analysis system recorded motion of the pelvis, femur, tibia, and foot using 3 infrared emitting diodes placed on each segment at 60 Hz. Force plate recordings at 300 Hz were combined with limb inertial properties and position data to estimate net knee joint moments. The stance time, foot progression angle, and cutting angle were also included to evaluate performance between trials. Results: Knee internal rotation during the giving way trial increased 3.2 degrees at 54% of stance relative to the nongiving way trials. Knee flexionduring the giving way trial increased to 33.1 degrees at 66% of stance, and the knee moment switched from a nominal flexor moment to a knee extensor moment at 64% of stance. The knee abductor moment and external rotation moment during the giving way trial deviated in early stance. Conclusions: The observed response to the giving way event suggests that increasing knee flexion may enhance knee stability for this subject. The transverse and frontal plane moments appear important in contributing to the giving way event. Further research that assists clinicians in understanding how interventions can impact control of movements in these planes is necessary.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 11:41:08