Gait ground reaction force characteristics of low back pain patients with pronated foot and able-bodied individuals with and without foot pronation

2016 ◽  
Vol 49 (9) ◽  
pp. 1705-1710 ◽  
Author(s):  
Nader Farahpour ◽  
AmirAli Jafarnezhad ◽  
Mohsen Damavandi ◽  
Abbas Bakhtiari ◽  
Paul Allard
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Ground Reaction Force ◽  
Reaction Force ◽  
Low Back ◽  
Foot Pronation ◽  
Pain Patients ◽  
Force Characteristics

Effect of Lower Limb Muscle Fatigue on Ground Reaction Force Components During Landing in People With Nonspecific Chronic Low Back Pain

2019 ◽  
Vol 28 (8) ◽  
pp. 847-853
Author(s):  
Ali Jalalvand ◽  
Mehrdad Anbarian
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Muscle Fatigue ◽  
Ground Reaction Force ◽  
Lower Limb ◽  
Healthy Subjects ◽  
Reaction Force ◽  
Low Back ◽  
Force Development ◽  
Force Components

Context: The link between landing parameters and lower limb muscle fatigue in association with chronic low back pain (CLBP) is not well understood. Objective: To examine the effects of fatigue on the ground reaction force components during landing in people with nonspecific CLBP. Design: Quasi-experimental study. Setting: Clinical biomechanics laboratory. Participants: A total of 44 subjects were equally divided into a healthy group and a group with CLBP. Main Outcome Measures: The ground reaction force along anterior–posterior (y) and medial–lateral (x) and vertical (z) axes, time to peak (TTP), the rate of force development, and impulses for all axes were calculated. A repeated-measures analysis of variance (group × fatigue) was used to compare the data among groups. Results: In the unfatigued conditions, the amplitudes of Fy3, Fz2, and TTP of Fy1, Fy2, Fz1, Fz2, Fz3, Fz4, rate of force development in Y in the CLBP subjects are significantly different than those in the healthy subjects (P < .05). In the fatigued conditions, the amplitudes of Fz2, Fz3, Fz4, and TTP of Fy2, Fy3, Fy4, Fz2, impulses of X2, Z in the CLBP group were significantly different than those in the healthy subjects (P < .05). Within-group comparisons of measured Fx1, Fy1, Fy2, Fz2, Fz4 and TTP of Fx1, Fy1, Fy2, Fz2, Fz3, Fz4, impulses of X2, z were significantly different from prefatigue to postfatigue in the healthy group (P < .05). Within-group comparisons of measured Fx1, Fy1, Fz1, Fz2 and TTP of Fx5, Fz1, impulses of X2 were significantly differed from prefatigue to postfatigue in the CLBP group (P < .05). Conclusions: It seems that TTP of ground reaction force variables in CLBP may have clinical values for rehabilitation. Muscle fatigue altered landing performance. However, patients with CLBP will respond differently to lower-extremity fatigue. These altered variables in patients with low back pain are the cause of future injuries or lower-extremity injuries that need to be addressed in further studies.

scholarly journals Lower Extremity Fatigue, Sex, and Landing Performance in a Population With Recurrent Low Back Pain

2015 ◽  
Vol 50 (4) ◽  
pp. 378-384 ◽  
Author(s):  
Ram Haddas ◽  
C. Roger James ◽  
Troy L. Hooper
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Lower Extremity ◽  
Ground Reaction Force ◽  
Knee Flexion ◽  
Reaction Force ◽  
Initial Contact ◽  
Low Back ◽  
Lower Extremity Injuries ◽  
Extremity Injuries

Context Low back pain and lower extremity injuries affect athletes of all ages. Previous authors have linked a history of low back pain with lower extremity injuries. Fatigue is a risk factor for lower extremity injuries, some of which are known to affect female athletes more often than their male counterparts. Objective To determine the effects of lower extremity fatigue and sex on knee mechanics, neuromuscular control, and ground reaction force during landing in people with recurrent low back pain (LBP). Design Cross-sectional study. Setting A clinical biomechanics laboratory. Patients or Other Participants Thirty-three young adults with recurrent LBP but without current symptoms. Intervention(s) Fatigue was induced using a submaximal free-weight squat protocol with 15% body weight until task failure was achieved. Main Outcome Measure(s) Three-dimensional knee motion, knee and ankle moments, ground reaction force, and trunk and lower extremity muscle-activity measurements were collected during 0.30-m drop vertical-jump landings. Results Fatigue altered landing mechanics, with differences in landing performance between sexes. Women tended to have greater knee-flexion angle at initial contact, greater maximum knee internal-rotation angle, greater maximum knee-flexion moment, smaller knee-adduction moment, smaller ankle-inversion moment, smaller ground reaction force impact, and earlier multifidus activation. In men and women, fatigue produced a smaller knee-abduction angle at initial contact, greater maximum knee-flexion moment, and delays in semitendinosus, multifidus, gluteus maximus, and rectus femoris activation. Conclusions Our results provide evidence that during a fatigued 0.30-m landing sequence, women who suffered from recurrent LBP landed differently than did men with recurrent LBP, which may increase women's exposure to biomechanical factors that can contribute to lower extremity injury.

Role of growth plate (apophyseal ring fracture) in causing modic type changes in pediatric low back pain patients

2021 ◽  
Author(s):  
Hiroaki Manabe ◽  
Toshinori Sakai ◽  
Yasuyuki Omichi ◽  
Kosuke Sugiura ◽  
Masatoshi Morimoto ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Growth Plate ◽  
Low Back ◽  
Ring Fracture ◽  
Modic Type ◽  
Pain Patients ◽  
Apophyseal Ring Fracture

scholarly journals Brain-Derived Neurotrophic Factor and Immune Cells in Osteoarthritis, Chronic Low Back Pain, and Chronic Widespread Pain Patients: Association with Anxiety and Depression

Medicina ◽  
2021 ◽  
Vol 57 (4) ◽  
pp. 327
Author(s):  
Dominique Josephine Dimmek ◽  
Christoph Korallus ◽  
Sabine Buyny ◽  
Gutenbrunner Christoph ◽  
Ralf Lichtinghagen ◽  
...  
Keyword(s):  
Chronic Pain ◽  
Low Back Pain ◽  
Back Pain ◽  
Immune Cells ◽  
Chronic Widespread Pain ◽  
Anxiety And Depression ◽  
Low Back ◽  
Widespread Pain ◽  
Chronic Pain Patients ◽  
Pain Patients

Background and Objectives: Musculoskeletal dysfunction can induce several types of chronic pain syndromes. It is of particular interest to elucidate the pathomechanism of different forms of chronic pain. It is possible that patients who have developed chronic widespread pain (CWP) may endure different pathomechanisms as compared to those who suffer from local pain (osteoarthritis, OA) and regional pain (chronic low back pain, cLBP), especially with regard to pain regulation and its related biomediators. The aim of this study was to determine the differences in pathomechanisms among these patients by measuring pain-related biomediators, particularly brain-derived neurotrophic factor (BDNF). Additionally, subpopulations of immune cells were determined in parallel. Materials and Methods: Patients and healthy subjects (HSs) were recruited (age and gender-matched). BDNF was measured from serum samples of patients and HSs and the data of body composition parameters were recorded. Additionally, both patients and HSs were asked to fill in questionnaires related to pain intensity, anxiety, and depression. Results: Our results highlight that the levels of both free and total BDNF are significantly lower in pain patients compared to HSs, with p values of 0.041 and 0.024, respectively. The number of CD3− CD56bright natural killer (NK) cells shows significant differences between the groups. Comparing all chronic pain patients with HSs reveals a significantly lower number of CD4+ CD8+ T cells (p = 0.031), CD3− CD56bright NK cells (p = 0.049) and CD20+ CD3− cells (p = 0.007). Conclusions: To conclude, it seems that a general conformity between the pathomechanisms of different chronic pain diseases exists, although there are unique findings only in specific chronic pain patients.

scholarly journals Predictive factors of high societal costs among chronic low back pain patients

2019 ◽  
Vol 24 (2) ◽  
pp. 325-337 ◽  
Author(s):  
Elizabeth N. Mutubuki ◽  
Mariette A. Luitjens ◽  
Esther T. Maas ◽  
Frank J. P. M. Huygen ◽  
Raymond W. J. G. Ostelo ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Predictive Factors ◽  
Chronic Low Back Pain ◽  
Low Back ◽  
Societal Costs ◽  
Pain Patients
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