P 160 - Non-linear analysis of trunk movement of air defense staff: Pilot study
Measurements of acceleration of a person ’s body segment by wearable MoCap system is one of the most important tool to investigate a movement activity. However, the aim of our study is to assess the ability of the trunk movement activity assessment by non-linear method to identify and differences in traffic density and hours of shift wor k. Poincaré plot with five minute intervals in four hour length data was used to calculate the standard deviations SD1 and SD2. Also, air traffic density with five minute intervals in four hour length data was calculated. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: A. D ’Angeles, P. Kutilek, V. Krivanek, J. Farlik, J. Hejda, P. Volf, P. Smrcka, R. Doskocil, J. Casar Tags: Short communication Source Type: research

P 162 - Qualitative and quantitative comparative study of accelerometer cut-points to evaluate physical activity in children with cerebral palsy
To evaluate the physical activity in free-living environment, we can used accelerometer. For children with cerebral palsy, we have tried to determine the best algorythm to evaluate the level of physical activity. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: A.-L. Guinet, E. Desailly Source Type: research

P 175 - Robotic-assisted locomotion training improves walking abilities in children with bilateral cerebral palsy
Cerebral palsy (CP) is the most common cause of movement disorders in childhood and is associated with abnormal muscle tone, low range of motion, and muscle weakness. These impairments are described as limiting factors to walk, leading to a reduced walking speed and endurance [1]. Since two decades, robotic-assisted devices (e.g., Lokomat), which provide movement assistance (Guidance) and a body-weight support (BWS) during walking, are considered as a promising approach for gait rehabilitation in people with neurologic impairment [2]. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: Yosra Cherni, Laurent Ballaz, Genevi ève Girarin-Vignola, Mickael Begon Tags: Short communication Source Type: research

P 078 – How does hypermobility affect lower extremity function for children with increased femoral anteversion?
Increased femoral anteversion (IFA) and joint hypermobility are commonly seen together in pediatric clinics. Femoral anteversion and joint hypermobility may contribute falling and fatigue in activities, as well as causing abnormal gait patterns [1]. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: G. Leblebici, E. Akalan, A. Apti, S. Kuch ımov, A. Kurt, K. Onerge Tags: Short communication Source Type: research

P 109 – Changes in leg alignment after total hip replacement detected with the EOS system
Goal of a total hip replacement (THR) is to reduce pain and improve quality of life. The THR should not change the morphology too much, in respect to the situation before surgery as well as to the contralateral leg. To receive reliable information about the leg alignment before and after THR, a measurement method with minimal systematic errors needs to be chosen. Radiographic measurements of the leg alignment are highly influenced by the positioning of the leg, leading to potential measurement errors [1]. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: S. van Drongelen, B. Fey, F. Stief, H. Kaldowski, D. Ipek, A. Meurer Tags: Short communication Source Type: research

P 151 – Reliability of variables measured with an Android device during a modified timed up and go test in patients with Alzheimer’s disease
The alteration of the frontal cognitive capacities, mainly the executive function, reduces the allocation of attentional resources in the brain, which compromises the gait stability and postural control, increasing the risk of falls [1,2]. For this reason, it is important to have tools that objectively assess these tasks in people with Alzheimer disease (AD). Further, the evaluation is essential to be objective since the recall required to answer questionnaires may be altered. The main objective is to analyze the reliability of the variables calculated with a system based in an Android device in the performance of a modifi...
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: J. L ópez-Pascual, J. Hurtado Abellán, M. Inglés, G. Espí-López, P. Serra-Añó Tags: Short communication Source Type: research

P 094 – Sit-to-stand of rheumatoid arthritis post-menopausal women vs. healthy post-menopausal – Antero-posterior displacement of centre of gravity and centre of pressure
Sit-to-stand (STS) ability is essential for daily life. The reliability of ground reaction forces parameters during STS was studied [1] and STS stabilization could differentiate elderly who had past fall events [2]. Rheumatoid arthritis (RA) patients presented an increased fall risk [3], and the lower muscle strength [4] and the increased disability [5] yielded by these patients may lead to falls during STS events [2,6]. The relation established between centre of gravity projection (CoGP) and centre of pressure (CoP) is a critical parameter during STS [6]. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: P. Aleixo, T. Atalaia, J. Vaz Patto, J. Abrantes Tags: Short communication Source Type: research

P 152 – Gender differences in three dimensional gait analysis data from pediatric athletes
Gender can affect the skeletal and muscle morphology. Also, the walking patterns between male and female individuals can be different. Aim of this study was to compare the three dimensional gait analysis vairables between male and female pediatric athletes. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: I.A. Bayhan, C. G önen Aydin Tags: Short communication Source Type: research

P 110 – Lower limb muscle volume estimation from maximum cross-sectional area and muscle length in cerebral palsy and typically developing individuals
This study demonstrates that muscle volume may be estimated accurately in typically developing individuals and individuals with cerebral palsy by a combination of anatomical cross-sectional area and muscle length. 2D ultrasound may be a convenient method of making these measurements routinely in the clinic. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: I. Vanmechelen, A. Shortland, J. Noble Tags: Short communication Source Type: research

Association between gait mechanics and ultrasonographic measures of femoral cartilage thickness in individuals with ACL reconstruction
Individuals with anterior cruciate ligament reconstruction (ACLR) are at greater risk for accelerated post-traumatic knee osteoarthritis (KOA) [1]. Previous research indicates that approximately 50% of individuals with ACLR have KOA within 10 years of reconstruction surgery [1], and KOA risk is 3 times greater in the involved compared to uninvolved limb [2]. KOA is commonly assessed using imaging techniques such as magnetic resonance imaging, or radiograph [3]. However, these methods have limitations that preclude them from practical use for the purpose of identifying the progression of KOA, including lack of portability, ...
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: Derek N. Pamukoff, Melissa M. Montgomery, Skylar Holmes, Tyler J. Moffit, Steven A. Garcia, Michael N. Vakula Tags: Full length article Source Type: research

Biomechanical Evaluation of Virtual Reality-based Turning on a Self-Paced Linear Treadmill
Recent studies on gait disorders in patients with Parkinson ’s disease (PD) and stroke have found that patients have difficulties during gait transitions such as step initiation, termination, and turning. They often exhibit increased tremor, hesitation, a loss of stability, or even falls. This phenomenon is termed freezing of gait (FOG) [1–3] known to be caused by problems in the basal ganglia circuit [1,4–6]. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: Keonyoung Oh, Christopher J. Stanley, Diane L. Damiano, Jonghyun Kim, Jungwon Yoon, Hyung-Soon Park Tags: Full length article Source Type: research

P 072 - Describing the influences of using insoles on gait parameters in children with increased femoral anteversion and pes-planovalgus: plot study
Increased femoral anteversion (IFA) is a transverse plane problem that may lead to alterations on lower body kinematics during walking [1,2]. Internal tibial and femoral torsion increase internal rotatory force on the talus which may cause pes-planovalgus (PPV)[3]. Considering the high correlation between IFA and PPV, supporting accurate foot posture with insole might make improvement on IFA individuals [4]. There is no study analyzing kinematic influences of insole on walking of children with IFA and PPV. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: H. Evrendilek, N.E. Akalan, R. Sert, S. Kuchimov, G. Karaca, G. Ert ürk, F. Bilgili, P. Lucareli Tags: Short communication Source Type: research

How Does Hypermobility Affect Lower Extremity Function For Children with Increased Femoral Anteversion?
Increased femoral anteversion (IFA) and joint hypermobility are commonly seen together in pediatric clinics. Femoral anteversion and joint hypermobility may contribute falling and fatigue in activities, as well as causing abnormal gait patterns [1]. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: G. Leblebici, E. Akalan, A. Apti, S. Kuch ımov, A. Kurt, K. Onerge Tags: Short communication Source Type: research

P 084 - Using kinematic data for automatic detection of gait events in novice walking infants
Gait analysis relies on the accurate identification of events such as foot-contact and foot-off. In a standard gait laboratory force plates would be used to identify these, in other environments kinematic data are used. O ’Connor et al. [1] developed a kinematic gait detection algorithm based on foot velocity (FVA) for use in paediatric gait and proved it more reliable than other options in 2-13 year old. This utilises heel and toe markers to generate a foot centre and utilises characteristics of its velocities t o define “heel-strike” and “toe-off”. (Source: Gait and Posture)
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: C. Price, A. Martinez Santos, C. Nester Tags: Short communication Source Type: research

P 090 – Main factors affecting the arch structure of children: a follow-up study using a mixed linear model of repeated data
Previous studies have showed that body mass and age exerted high effects on the development of arch structure in children [1,2]. Limitations of these studies, e.g., no follow-up check and inappropriate statistical analyses, etc., can adversely affect the results. Consequently, no consensus has been reached to determine to what extent these factors can affect the arch structure of children. Research on relevant factors affecting the arch structure of children needs further clarification. Therefore, we chose to perform a longitudinal investigation on the change of arch structure of children with the body mass index (BMI) cha...
Source: Gait and Posture - July 24, 2018 Category: Orthopaedics Authors: S. Yan, B. Shi, L. Yang Tags: Short communication Source Type: research