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Prof David Howard's Outputs (79)

In vitro study of foot kinematics using a dynamic walking cadaver model (2007)
Journal Article
Nester, C., Liu, A., Ward, E., Howard, D., Cocheba, J., Derrick, T., & Patterson, P. (2007). In vitro study of foot kinematics using a dynamic walking cadaver model. Journal of Biomechanics, 40(9), 1927-1937. https://doi.org/10.1016/j.jbiomech.2006.09.008

There is a dearth of information on navicular, cuboid, cuneiform and metatarsal kinematics during walking and our objective was to study the kinematic contributions these bones might make to foot function. A dynamic cadaver model of walking was used... Read More about In vitro study of foot kinematics using a dynamic walking cadaver model.

Automated design of robust discriminant analysis classifier for foot pressure lesions using kinematic data (2005)
Journal Article
Goulermas, J., Findlow, A., Nester, C., Howard, D., & Bowker, P. (2005). Automated design of robust discriminant analysis classifier for foot pressure lesions using kinematic data. IEEE Transactions on Biomedical Engineering, 52(9), 1549-1562. https://doi.org/10.1109/TBME.2005.851519

In the recent years, the use of motion tracking systems for acquisition of functional biomechanical gait data, has received increasing interest due to the richness and accuracy of the measured kinematic information. However, costs frequently restrict... Read More about Automated design of robust discriminant analysis classifier for foot pressure lesions using kinematic data.

Finite element analysis of footwear and ground interaction (2005)
Journal Article
Sun, Z., Howard, D., & Moatamedi, M. (2005). Finite element analysis of footwear and ground interaction. Strain, 41(3), 113-117. https://doi.org/10.1111/j.1475-1305.2005.00205.x

Military boots are designed to prevent the soft tissue and skeletal structure of the feet from damage under heavy usage. Good slip-resistant tread patterns of the outer-sole are vital to minimise the risk or severity of slipping under demanding condi... Read More about Finite element analysis of footwear and ground interaction.

Optimization of legged robot locomotion by control of foot-force distribution (2004)
Journal Article
Jiang, W., Liu, A., & Howard, D. (2004). Optimization of legged robot locomotion by control of foot-force distribution. Transactions of the Institute of Measurement and Control, 26(4), 311-323. https://doi.org/10.1191/0142331204tm124oa

The contribution of this paper is the introduction of three new pseudo-inverse formulations for the real-time control of foot-force distribution in multi-legged walking machines. Three alternative locomotion performance objectives are proposed for th... Read More about Optimization of legged robot locomotion by control of foot-force distribution.

Kinematic design of crab-like legged vehicles
Journal Article
Liu, A., & Howard, D. Kinematic design of crab-like legged vehicles. Robotica, 19(01), 67-77. https://doi.org/10.1017/S0263574700002861

In this paper, the kinematic workspace characteristics of a
crab-like legged vehicle are investigated using a 2-D model.
The alternative kinematic configurations and their corresponding workspace constraints are discussed, and the
vehicle configurat... Read More about Kinematic design of crab-like legged vehicles.

Whole body inverse dynamics over a complete gait cycle based only on measured kinematics
Journal Article
Ren, L., Jones, R., & Howard, D. Whole body inverse dynamics over a complete gait cycle based only on measured kinematics. Journal of Biomechanics, 41(12), 2750-2759. https://doi.org/10.1016/j.jbiomech.2008.06.001

This paper presents a three-dimensional (3D) whole body multi-segment model for inverse dynamics analysis over a complete gait cycle, based only on measured kinematic data. The sequence of inverse dynamics calculations differs significantly from the... Read More about Whole body inverse dynamics over a complete gait cycle based only on measured kinematics.

Predicting lower limb joint kinematics using wearable motion sensors
Journal Article
Findlow, A., GOULERMAS, J., Nester, C., Howard, D., & Kenney, L. Predicting lower limb joint kinematics using wearable motion sensors. Gait & Posture, 28(1), 120-126. https://doi.org/10.1016/j.gaitpost.2007.11.001

The aim of this study was to estimate sagittal plane ankle, knee and hip gait kinematics using 3D angular velocity and linear acceleration data from motion sensors on the foot and shank. We explored the accuracy of intra-subject predictions (i.e., wh... Read More about Predicting lower limb joint kinematics using wearable motion sensors.

A comparison of feature extraction methods for the classification of dynamic activities from accelerometer data
Journal Article

Driven by the demands on healthcare resulting from the shift toward more sedentary lifestyles, considerable effort has been devoted to the monitoring and classification of human activity. In previous studies, various classification schemes and featur... Read More about A comparison of feature extraction methods for the classification of dynamic activities from accelerometer data.