Abstract Archive

Nihon Kendo Kata, a form of practice where two individuals act out a predetermined protocol, is applied to assess skill level (dan grade) during the assessment for rank promotion in Kendo, a Japanese martial art. It is crucial to assess form for coaching using objective and quantitative methods. The...

Why do cyclists sway their bicycle from side to side when riding out of the saddle? We tested the theory that lateral bicycle sway may decrease the work performed by the rider on their center of mass (CoM) and also impact the contribution of power at the hip, knee and ankle during standing cycling. ...

The purpose of this study was to examine the shock attenuation of the initial peak vertical force and the rate of loading between barefoot, traditional bowling shoes with minimalist midsole design and modified bowling shoes with E-TPU midsole design. The results indicated that the bowling footwear w...

Humans rapidly adapt gait to minimize energetic cost, but no direct metabolic sensors can account for this. Dynamic walking principles and tibialis anterior (TA) muscle activation profiles suggest it may be used in indirect sensing of energetic losses during the collisional phase of walking. Prelimi...

This presents the capabilities and recent features of ArtiSynth (www.artisynth.org), a free, open source 3D modeling system developed at the University of British Columbia to support combined multibody and finite element (FEM) simulation. It provides a large selection of modeling components together...

The accuracy of wearable sensors for measuring kinematics during return-to-play testing has not been established. This study compared a commercially available wearable sensor system to video motion analysis for six different activities. There was generally good agreement between the two systems, wit...

The windlass and the arch-spring are two fundamental models that describe foot function during locomotion. However, the windlass mechanism requires that the plantar fascia is stiff and doesn’t strain, while the arch-spring describes a straining tissue. To examine how these two mechanisms function ...

Stability in flight is essential for performance and safety in ski jumping. However, the effect of vertical axial wind on the flight stability in ski jumping remains unknown. In this study, the effect of vertical axial wind on the flight stability was analyzed by computational fluid dynamics (CFD) s...

The purpose of this study was to examine the effectiveness of different aquatic activity instructional methods for autistic children for motor skills development. Autistic children were evaluated over a three-week period of swim lessons between an upper extremity instructional method vs a lower extr...

Most frequent ligament injuries at the lower limb occur at the ankle and, despite the numerous studies, controversies still exist regarding their stabilizing function. Furthermore, the functions of some ligaments are still unknown because of access difficulties. Therefore, the aim of this study was ...

Although transient behavior has been reported for commonly used center of pressure parameters, the physiological relevance of this behavior is unclear. This study investigated these transient effects during eyes open and eyes closed stance in a healthy population. Although initial transient effects ...

Fixed speed treadmills are commonly used in the clinical and research setting but fail to simulate the variation inherent to natural gait that occurs with overground walking (OGW) at a quasi-steady pace for a high number of gait cycles. The self-paced treadmill (SPT) allows for user-driven variation...

Maximal (average) mechanical power output during cycling is constrained by many (bio-)mechanical factors. Here, we set out to find the maximal power that can be produced by the muscles of the lower limb during a fully constrained periodic movement. We used a musculoskeletal model capable of matching...

The purpose of this study was to investigate the effect of Kinesio taping on the functional movement for healthy athletes. 29 athletes were recruited and randomly distributed to the Kinesio group and the placebo group. The Deep Squat test and Inline Lunge test of Functional Movement Screen (FMS) wer...

Cam femoroacetabular impingement (FAI) is a common cause of hip injuries, instability, and early joint degeneration. Early surgical intervention attempts to improve hip function, by restoring mobility and alleviating symptoms, but it is unclear how the morphology and capsule influence joint mechanic...

The effect of infant positioning on the neck, back and lower limb muscle activity (2-6 months) was explored. Surface EMG data while lying prone was compared to lying supine, held in arms, in a baby carrier, and in a car seat. Infants exhibited significantly lower muscle activity in the car seat, com...

Double-bundle (DB) anterior cruciate ligament (ACL) reconstruction is thought to improve kinematic outcomes after ACL reconstruction. Using a dynamic stereo X-ray (DSX) system, the side-to-side (SS) kinematic differences between 29 single bundle (SB) and 28 DB ACL reconstructed participants during d...

The purpose of this study was to investigate bilateral lower extremity (hip, knee, ankle) and distal lead foot kinematics during transition step negotiation in young women (YA) and older women with (OFH) and without (ONF) a fall history. Participants in the YA (n=6), OFH (n=4), and ONF (n=3) groups ...

Deceleration-focused shoulder exercises are becoming integrated into both baseball and softball programs. These exercises address the imbalance between the shoulder internal and external rotator muscles. The effects of a deceleration-focused shoulder exercise program has yet to be examined among the...

Injury to the anterior cruciate ligament (ACL) results in lingering quadriceps deficits leading to long-term dysfunction. A simple screening tool such as the Y Balance Test (YBT) may provide a surrogate measure of strength deficits. Quadriceps strength and dynamic balance using the YBT were assessed...