Showing papers in "Clinical Biomechanics in 2004"

TL;DR: This work explains and underscores the use of principal component analysis in clinical biomechanics as an expedient, unbiased means for reducing high-dimensional data sets to a small number of modes or structures, as well as for teasing apart structural and variable components in such data sets.

TL;DR: Sagittal plane knee joint forces cannot rupture the anterior cruciate ligament during sidestep cutting, and modifying sagittal plane biomechanics will thus unlikely contribute to the prevention of anterior Cruciates ligament injuries.

TL;DR: Investigating the relationship between changes in thickness and EMG activity in the transversus abdominis muscle of healthy subjects and the reliability of ultrasound measurements using different modes and transducers found changes in Thickness can be used to indicate changes in the electrical activity in this muscle.

TL;DR: Subjects with knee osteoarthritis demonstrated less excursion of the knee in the sagittal plane from heelstrike to peak flexion before midstance (i.e. during loading) and reduced peak vertical ground reaction forces relative to body weight.

TL;DR: Two conditions were associated with higher plantar pressures in the older adults studied: faster speeds and barefoot walking.

TL;DR: This study proves that healthy adults would walk differently according to their gender when walked barefoot at their comfortable speed and assumes that the difference is due to gender features of the gait-related anatomy and habits.

TL;DR: A comprehensive evaluation of custom designs using in-shoe pressure measurement should ideally be conducted before dispensing insoles to diabetic patients with neuropathy and foot deformity.

TL;DR: The difficulties in maintaining the static position in elderly seems dependent on the reduced initial decrease in force variability and/or musculoskeletal components, and it is suggested that the first 5 s are crucial when assessing balance during one-leg stance.

TL;DR: This study indicates that an unharmed lateral hinge largely dictates the stability after high tibial osteotomy, and the TomoFix plate provides superior stability in both compression and torsion compared to the Puddu Plate.

TL;DR: Identifying the landing strategy differences between female and male college volleyball players may provide detailed perspective about the load distribution in lower extremity joints for determining major factors affecting the increased incidence of anterior cruciate ligament injuries in females.

TL;DR: The stereoradiographic 3D-reconstruction method allows for a significant reduction of the whole reconstruction time, with regard to previously described methods, and was found to be comparable to the accuracy of previous methods.

TL;DR: The static pedobarographic evaluation revealed significantly higher values in terms of forefoot peak pressure, total plantar force and total contact area in the feet of class 1 obesity subjects when only middle foot peak pressure was found to be higher in class 1 obese subjects than controls as a dynamic pedobarography parameter.

TL;DR: The expectations of excessive motion and muscle effort in the pes planus group were therefore not substantiated and the main implications of the differences were for restraint of motion.

TL;DR: Male and female collegiate soccer players demonstrate similar hip and knee joint mechanics while performing a randomly cued cutting maneuver, and gender differences in lower extremity mechanics when performing sport specific tasks are identified.

TL;DR: Roll-over shapes provide insight into the workings of various lower limb systems by taking a new look at existing gait data, helping to develop a better understanding of able-bodied and disabled human walking, and leading to the design of improved rehabilitation devices, surgeries, and therapies.

TL;DR: The results showed that decreasing the Young's modulus of plantar fascia would increase the strains of the long and short plantar and spring ligaments significantly and should be well-planned to minimise the effect on its structural integrity to reduce the risk of developing arch instability and subsequent painful foot syndrome.

TL;DR: The timing of the changes in the forces applied to the unstable ankle joint during jump landing suggest that they are caused by a motor control deficit, which is likely to result in repeated injury due to significant increase in stress on ankle joint structures duringjump landing.

TL;DR: The knee flexor musculature in males is less extensible and displays greater active and passive stiffness compared to females, however, these differences may be functions of greater mass and height in males.

TL;DR: An overview of current applications of artificial neural networks in the area of clinical biomechanics is provided, some limitations, and some proven benefits are discussed.

TL;DR: People with patella alta may be predisposed to patellofemoral dysfunction through elevations in joint stress and treatments aimed at increasing the load-bearing surface area between the patellA and femur, such as bracing, may be beneficial in this patient population.

TL;DR: An analysis of research on the biomechanics of head injury with an emphasis on the tolerance of the skull to lateral impacts using unembalmed and embalmed and intact and isolated specimens subjected to static and various types of dynamic loading.

TL;DR: This update will serve as a review of the current state of thought regarding lower extremity joint coupling during running as greater insight into the role of joint coupling in injuries is gained, more optimal intervention and prevention strategies can be developed to minimize injury risk.

TL;DR: A database of ranges of motion and external forces and moments has been established to support the development of biomechanical models of the upper limb.

TL;DR: The deficient knee was significantly more locally unstable than the contralateral knee, and the altered local stability may render the deficient knee less adaptable to the ever-changing environmental demands.

TL;DR: The results indicate that a 25% maximal isometric contraction of the neck extensors for 10 and 15 min duration produced significant changes in some posturographic parameters in young healthy males, contributing to the understanding of functional aspects of cervical muscle fatigue.

TL;DR: It was concluded that increased myoelectric silence during prolonged cyclicflexion-extension demonstrates an enhanced flexion-relaxation phenomenon which reduces lumbar stability and may be detrimental to low back health.

TL;DR: In females, pelvic floor muscles have the capacity to increase stiffness of the pelvic ring, and these muscles can generate a backward rotation of the sacrum in both sexes.

TL;DR: Prophylactic reinforcement of the femur could become a treatment option to solve the problems with osteoporotic hip fractures in patients at risk and the feasibility and mechanical effectiveness of the in vitro procedure could be demonstrated.

TL;DR: Variability of EMG data and kinematics may explain pain-dependent alterations of motor control, which in turn might contribute to a further understanding of the development of movement impairments in low back pain.

TL;DR: Musculoskeletal parameters for predicting muscle forces can be adequately measured in a cadaver model using a bootstrap computational simulation for detecting optimal muscle length as a function of sample size and effect size.