An overview of podiatric biomechanics theory and its relation to selected gait dysfunction

Harradine, Paul; Bevan, Lawrence; Carter, Nik

doi:10.1016/j.physio.2005.10.003

Cited by 23 publications

(15 citation statements)

References 19 publications

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“…It is less prevalent in older ages since it becomes corrected by age [2][3][4]. Foot pronation is a risk factor for mechanical dysfunctions and injuries in the upper joints such as ankle, knee and hip joints [5,6]. In theory, foot pronation creates tibia internal rotation, hip internal rotation [7], knee valgus and pelvis anterior and ipsilateral tilt [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fatigue on Knee Kinematics and Kinetics During Walking in Individuals With Flat Feet

Farahpour

Sharifmoradi

Azizi

2017

PTJ

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Flat feet associates with altered knee kinematics, kinetics, as well as knee pain. Fatigue of plantar intrinsic foot muscles may increase the navicular drop. However, it is unclear how fatigue influences the knee pain in individuals with flat feet. The purpose of this study was to assess the effect of fatigue on knee kinematics and kinetics in flat feet people during walking. Methods: This is a quasi-experimental research. Ten individuals with flat feet (Mean±SD age: 24.4±2.16 y; Mean±SD height: 177.2±4.31 cm; Mean±SD mass: 81.9±17.4 kg) and 10 normal subjects (Mean±SD age: 25.28±6.33 y; Mean±SD height: 168.61±27.71 cm; Mean±SD mass: 78.13±26.93 kg) were participated in this study. A Vicon motion analysis system (100 Hz) with four cameras and two Kistler force plates (1000 Hz) were used to measure knee kinematics and kinetics during gait before and after fatigue. For between group and within group comparisons, the Independent t test and repeated measures analysis of variance were used, respectively. SPSS (V. 22) was used to analyze data with the significance level of P<0.05. Results: Knee range of motion of flat feet group in frontal plane (9.37±2.54 degree) was significantly higher than that of healthy group (P=0.01) in the pretest. In the flat feet group, the knee moment in sagittal, frontal, and horizontal plan was significantly greater than those in the healthy group by 0.86 (P=0.002), 0.25 (P=0.016) and 0.19 (P=0.000) Nm/BW, respectively in the pretest. Adductor moment increased after fatigue protocol in the healthy group by 0.08 Nm/BW. Conclusion: Before exhaustion, the knee moments in sagittal, frontal, and horizontal planes in the flat feet group were significantly higher than that in the healthy group. In the flat feet group, fatigue resulted in a decrease on the knee flexion and abduction moments and increase in knee ROM in sagittal and frontal plane in the flat foot group. The decreased knee muscle moments may result in an increased loading on the knee joint. It appears that extreme exhausting activity might place the knees of flat feet individuals at the risk of pathology and injury.

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Section: Introductionmentioning

confidence: 99%

Effect of Fatigue on Knee Kinematics and Kinetics During Walking in Individuals With Flat Feet

Farahpour

Sharifmoradi

Azizi

2017

PTJ

View full text Add to dashboard Cite

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“…Generalised excessive or prolonged foot pronation has been implicated in numerous functional changes to the lower limb resulting in overuse injuries affecting the lower back, hip, knee, lower leg, ankle, and foot [1,2]. The proposed mechanism of injury is via the propagation of abnormal functional mechanics proximally [3].…”

Section: Introductionmentioning

confidence: 99%

Proximal and distal contributions to lower extremity injury: A review of the literature

2012

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“…Constant impact on the plantar aspect by the GRF increases the occurrence of injuries such as heel pain, pelvic malalignment, and plantar fasciitis [6]. Previous studies have identified that functional disorders in the foot could cause lower back, hip, knee, and ankle joint injuries [7, 8]. Persons with flat feet might develop hallux valgus, plantar fasciitis, metatarsal pain, knee and back pain, and other problems without proper treatment [9].…”

Section: Introductionmentioning

confidence: 99%

How Arch Support Insoles Help Persons with Flatfoot on Uphill and Downhill Walking

Huang

Kim

Song

et al. 2017

Journal of Healthcare Engineering

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The main purpose of this study was to investigate the effect of arch support insoles on uphill and downhill walking of persons with flatfoot. Sixteen healthy college students with flatfoot were recruited in this study. Their heart rate, peak oxygen uptake (VO2), and median frequency (MDF) of surface electromyogram were recorded and analyzed. Nonparametric Wilcoxon signed-rank test was used for statistical analysis. The main results were as follows: (a) peak VO2 significantly decreased with arch support insoles compared with flat insoles during uphill and downhill walking (arch support insole versus flat insole: uphill walking, 20.7 ± 3.6 versus 31.6 ± 5.5; downhill walking, 10.9 ± 2.3 versus 16.9 ± 4.2); (b) arch support insoles could reduce the fatigue of the rectus femoris muscle during downhill walking (MDF slope of arch support insole: 0.03 ± 1.17, flat insole: −6.56 ± 23.07); (c) insole hardness would increase not only the physical sensory input but also the fatigue of lower-limb muscles particularly for the rectus femoris muscle (MDF slope of arch support insole: −1.90 ± 1.60, flat insole: −0.83 ± 1.10) in persons with flatfoot during uphill walking. The research results show that arch support insoles could effectively be applied to persons with flatfoot to aid them during uphill and downhill walking.

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An overview of podiatric biomechanics theory and its relation to selected gait dysfunction

Cited by 23 publications

References 19 publications

Effect of Fatigue on Knee Kinematics and Kinetics During Walking in Individuals With Flat Feet

Effect of Fatigue on Knee Kinematics and Kinetics During Walking in Individuals With Flat Feet

Proximal and distal contributions to lower extremity injury: A review of the literature

How Arch Support Insoles Help Persons with Flatfoot on Uphill and Downhill Walking

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