Biomaterial Database

Implementation of open and closed kinetic chain quadriceps strengthening exercises after anterior cruciate ligament reconstruction. 2001

M D Ross, and C R Denegar, and J A Winzenried

Department of Physical Therapy, 27th Medical Group, Cannon Air Force Base, NM 88103, USA.

When working with athletes that have recently undergone anterior cruciate ligament (ACL) reconstructive surgery, a common goal of athletic trainers, strength and conditioning coaches, physicians, and physical therapists is to restore quadriceps strength while protecting the reconstructed ACL and patellofemoral joint from unnecessary stresses. Quadriceps strengthening exercises are often referred to as occurring in the open kinetic chain (OKC) or closed kinetic chain (CKC). Currently, there is little agreement in the literature as to whether only CKC exercises or a combination of OKC and CKC exercise should be performed after ACL reconstruction to strengthen the quadriceps. We believe that a combination of OKC and CKC exercises can be used to effectively and safely strengthen the quadriceps after ACL reconstruction. The purposes of this review are to examine the scientific literature currently available for the effects of OKC and CKC exercise on ACL strain and patellofemoral joint stress, and to present a sound rationale for using a combination of OKC and CKC exercises for quadriceps strengthening after ACL reconstruction. On the basis of our review, both OKC and CKC exercises can be modified and implemented for quadriceps strengthening after ACL reconstruction without causing excessive ACL strain or patellofemoral joint stress.

UI	MeSH Term	Description	Entries
D007718	Knee Injuries	Injuries to the knee or the knee joint.	Injuries, Knee,Injury, Knee,Knee Injury
D010806	Physical Education and Training	Instructional programs in the care and development of the body, often in schools. The concept does not include prescribed exercises, which is EXERCISE THERAPY.	Education, Physical,Physical Education,Physical Education, Training
D011184	Postoperative Period	The period following a surgical operation.	Period, Postoperative,Periods, Postoperative,Postoperative Periods
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000070598	Anterior Cruciate Ligament Injuries	Sprain or tear injuries to the ANTERIOR CRUCIATE LIGAMENT of the knee.	ACL Injuries,ACL Tears,Anterior Cruciate Ligament Injury,Anterior Cruciate Ligament Tear,Anterior Cruciate Ligament Tears,ACL Injury,ACL Tear,Injuries, ACL,Injury, ACL,Tear, ACL,Tears, ACL
D013314	Stress, Mechanical	A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.	Mechanical Stress,Mechanical Stresses,Stresses, Mechanical
D015397	Program Evaluation	Studies designed to assess the efficacy of programs. They may include the evaluation of cost-effectiveness, the extent to which objectives are met, or impact.	Evaluation, Program,Family Planning Program Evaluation,Program Appropriateness,Program Effectiveness,Program Sustainability,Appropriateness, Program,Effectiveness, Program,Evaluations, Program,Program Evaluations,Program Sustainabilities,Sustainabilities, Program,Sustainability, Program
D015444	Exercise	Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure.	Aerobic Exercise,Exercise, Aerobic,Exercise, Isometric,Exercise, Physical,Isometric Exercise,Physical Activity,Acute Exercise,Exercise Training,Activities, Physical,Activity, Physical,Acute Exercises,Aerobic Exercises,Exercise Trainings,Exercise, Acute,Exercises,Exercises, Acute,Exercises, Aerobic,Exercises, Isometric,Exercises, Physical,Isometric Exercises,Physical Activities,Physical Exercise,Physical Exercises,Training, Exercise,Trainings, Exercise
D016059	Range of Motion, Articular	The distance and direction to which a bone joint can be extended. Range of motion is a function of the condition of the joints, muscles, and connective tissues involved. Joint flexibility can be improved through appropriate MUSCLE STRETCHING EXERCISES.	Passive Range of Motion,Joint Flexibility,Joint Range of Motion,Range of Motion,Flexibility, Joint
D016118	Anterior Cruciate Ligament	A strong ligament of the knee that originates from the posteromedial portion of the lateral condyle of the femur, passes anteriorly and inferiorly between the condyles, and attaches to the depression in front of the intercondylar eminence of the tibia.	Cruciate Ligament, Anterior,Anterior Cranial Cruciate Ligament,Cranial Cruciate Ligament,Anterior Cruciate Ligaments,Cranial Cruciate Ligaments,Cruciate Ligament, Cranial,Cruciate Ligaments, Anterior,Cruciate Ligaments, Cranial,Ligament, Anterior Cruciate,Ligament, Cranial Cruciate,Ligaments, Anterior Cruciate,Ligaments, Cranial Cruciate