A comparison of ground reaction force components according to the foothold heights in 16-t truck during downward step

Ground reaction force patterns during walking were observed in 18 children 3 and 4 years of age. The children walked barefoot at a self-chosen walking pace. Selected variables representing the vertical, anteroposterior, and mediolateral force components were evaluated. The results indicated that children in this age range contact the ground with greater vertical force measures relative to body mass than do adults. In addition, the minimum vertical force was lower, the transition from braking to propulsion occurred earlier, and the mediolateral force excursions were higher than typically found in adults. When the children were divided into groups on the basis of sex, differences were observed between those groups. The boys exhibited a greater difference in the vertical peak forces, a lower minimum force, a greater braking force, and a higher mediolateral force excursion value. The results indicated that children display a different ground reaction force pattern than do adults and that differences between boys and girls may be observed as early as ages 3 and 4 years.

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Effect of Textured Foot Orthoses on the Ground Reaction Force Components in the Older Adults During Walking

Iranian Journal of Rehabilitation Research in Nursing ◽

10.29252/ijrn.7.1.23 ◽

2020 ◽

Vol 7 (1) ◽

pp. 23-32

Author(s):

Aydin Valizadeorang ◽

Arefe Mokhtari MalekAbadi ◽

Aydin Valizade Orang ◽

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...

Keyword(s):

Older Adults ◽

Ground Reaction Force ◽

Reaction Force ◽

Foot Orthoses ◽

Force Components

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Altered Vertical Ground Reaction Force Components While Walking in Individuals With Chronic Ankle Instability

International Journal of Athletic Therapy & Training ◽

10.1123/ijatt.2018-0117 ◽

2020 ◽

Vol 25 (1) ◽

pp. 27-30

Author(s):

Erik A. Wikstrom ◽

Kyeongtak Song ◽

Kimmery Migel ◽

Chris J. Hass

Keyword(s):

Ground Reaction Force ◽

Loading Rate ◽

Ankle Instability ◽

Reaction Force ◽

Chronic Ankle Instability ◽

Vertical Ground Reaction Force ◽

Time To Peak ◽

Vertical Ground ◽

Force Components

Aberrant loading is a mechanism by which individuals with chronic ankle instability (CAI) may negatively impact cartilage health and therefore long-term health outcomes. We aimed to quantify walking vertical ground reaction force (vGRF) component differences between those with and without CAI. Participants (n = 36) walked barefoot overground at a self-selected comfortable pace. Normalized peak vGRF, time to peak vGRF, and normalized loading rate were calculated. Higher normalized loading rates (CAI: 5.69 ± 0.62 N/BW/s; controls: 5.30 ± 0.44 N/BW/s, p = .034) and less time to peak vGRF (CAI: 1.48 ± 0.18 s; controls: 1.62 ± 0.16 s, p = .018) were observed in those with CAI. In conclusion, those with CAI demonstrate a higher normalized loading rate and less time to peak vGRF compared to controls.

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The effect of time restricted visual sensory input on asymmetry of ground reaction force components in female children

Journal of Bodywork and Movement Therapies ◽

10.1016/j.jbmt.2017.11.010 ◽

2018 ◽

Vol 22 (4) ◽

pp. 917-923 ◽

Cited By ~ 1

Author(s):

Mozhgan Faraji Aylar ◽

AmirAli Jafarnezhadgero ◽

Fatemeh Salari Esker ◽

Robert Barber ◽

D.G.E. Robertson

Keyword(s):

Ground Reaction Force ◽

Sensory Input ◽

Reaction Force ◽

Female Children ◽

Force Components

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GROUND REACTION FORCE ANALYSIS FOR ASSESSING THE DIFFERENCES BETWEEN NORMAL AND WADDLING GAIT PATTERNS

Biomedical Engineering Applications Basis and Communications ◽

10.4015/s1016237213500245 ◽

2013 ◽

Vol 25 (02) ◽

pp. 1350024

Author(s):

Mehdi Razeghi ◽

Mostafa Rostami ◽

Nima Jamshidi ◽

Hamed Ghomashchi

Keyword(s):

Muscular Dystrophy ◽

Ground Reaction Force ◽

Reaction Force ◽

Force Plate ◽

Case Series ◽

Normal Subjects ◽

Control Group ◽

Reaction Forces ◽

Force Components ◽

Plate Analysis

Background: The purpose of this case series was to quantify gait to study muscular dystrophy. In this research, the quantitative differences between normal and waddling gaits were assessed by force plate analysis. Methods: Nineteen myopathy patients and 20 normal subjects serving as the control group participated in this research. In this study, quantitative analyses of gait have been used to investigate the differences in mobility between normal subjects and myopathy patients. Patient data were collected from Iranian Muscular Dystrophy Association members, and normal data were extracted from students of Azad University. All of the gait tests were performed using a Kistler force platform. Participants walked at a self-selected speed, barefoot, independently, and without assistive devices. Results: Our findings indicate that there were no significant differences between the patients and the control group in the anterior–posterior components of the ground reaction forces; however, there were considerable differences in the force components between the groups in the medial-lateral and vertical directions of the ground reaction force. In addition, there were significant differences in the time parameters between the groups along the vertical and medial-lateral directions.

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