Anterior hip joint force increases with hip extension, decreased gluteal force, or decreased iliopsoas force.
Abnormal or excessive force on the anterior hip joint may cause anterior hip pain, subtle hip instability and a tear of the acetabular labrum. We propose that both the pattern of muscle force and hip joint position can affect the magnitude of anterior joint force and thus possibly lead to excessive force and injury. The purpose of this study was to determine the effect of hip joint position and of weakness of the gluteal and iliopsoas muscles on anterior hip joint force. We used a musculoskeletal model to estimate hip joint forces during simulated prone hip extension and supine hip flexion under four different muscle force conditions and across a range of hip extension and flexion positions. Weakness of specified muscles was simulated by decreasing the modeled maximum force value for the gluteal muscles during hip extension and the iliopsoas muscle during hip flexion. We found that decreased force contribution from the gluteal muscles during hip extension and the iliopsoas muscle during hip flexion resulted in an increase in the anterior hip joint force. The anterior hip joint force was greater when the hip was in extension than when the hip was in flexion. Further studies are warranted to determine if increased utilization of the gluteal muscles during hip extension and of the iliopsoas muscle during hip flexion, and avoidance of hip extension beyond neutral would be beneficial for people with anterior hip pain, subtle hip instability, or an anterior acetabular labral tear.
Lewis
Cara L
CL
Human Neuromechanics Laboratory, Division of Kinesiology, University of Michigan, 401 Washtenaw Avenue, Ann Arbor, MI 48109-2214, USA. lewis@wustl.edu
Sahrmann
Shirley A
SA
Moran
Daniel W
DW
D003198:Computer Simulation; D006621:Hip Joint / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D004856:Postural Balance / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology*; D013314:Stress, Mechanical
Arthroscopy. 2001 Feb;17(2):181-8
11172248
J Biomech. 1995 Aug;28(8):999-1005
7673268
J Biomech. 2001 Jul;34(7):883-93
11410172
J Biomech. 1993 Aug;26(8):969-90
8349721
J Bone Joint Surg Br. 1991 May;73(3):423-9
1670443
Br J Sports Med. 2003 Feb;37(1):84-8
12547752
Clin Orthop Relat Res. 2001 Dec;(393):25-37
11764355
Clin Sports Med. 2001 Oct;20(4):779-90
11675886
Arthroscopy. 2005 May;21(5):580-5
15891725
Clin Sports Med. 2006 Apr;25(2):309-26, ix-x
16638494
Comput Aided Surg. 2000;5(2):108-19
10862133
Arthroscopy. 2000 Jan-Feb;16(1):11-5
10627339
Arthritis Care Res. 1997 Oct;10(5):308-19
9362597
J Biomech. 1981;14(11):793-801
7334039
Clin Sports Med. 2001 Oct;20(4):817-29
11675889
IEEE Trans Biomed Eng. 1990 Aug;37(8):757-67
2210784
Braz J Phys Ther. 2017 Nov - Dec;21(6):391-399
29097026
Langenbecks Arch Surg. 2004 Feb;389(1):53-9
14625775
Arthroscopy. 1999 Mar;15(2):132-7
10210068
Phys Ther. 2006 Jan;86(1):110-21
16386066