Inter-limb asymmetry is defined as the performance imbalance of a limb with respect to other one. Studies demonstrated how plyometric training could minimize inter-limb by reducing asymmetries and relative risk musculoskeletal injuries. Among different modalities, SuperJump® represented reliable method. This study aimed evaluate acute effects on dynamic balance Unilateral Asymmetry Bilateral In...

The design, fabrication and testing of a 5 5 micromachined tactile sensor array for the detection of an extremely small force (micrometer-Newton range) has been discussed. An anisotropic etching of silicon substrate of a MUMPs process chip forms a central contacting pads that are trampoline-shape suspended structures and sensor beams. A piezoresistive layer of polysilicon embedded in sensor bea...

A review is presented of the importance of the moment of inertia (MOI) to the performance of a sporting instrument. It is shown that for a given coefficient of restitution (COR), both the intrinsic power and the swing speed of a tennis racquet or baseball bat correlate strongly with the MOI about an axis through the handle and only weakly with the mass. It is further shown that for non-wood bas...

A transversal of a hypergraph is a set of vertices meeting all the hyperedges. A k-fold transversal of a hypergraph is a set of vertices such that every hyperedge has at least k elements of. In this paper, we prove that a k-fold transversal of a balanced hypergraph can be expressed as a union of k pairwise disjoint transversals and such partition can be obtained in polynomial time. We give an N...

The matching preclusion number of a graph is the minimum number of neither edges whose deletion in a graph has a neither perfect matching nor an almost perfect matching. For many interconnection networks, the optimal sets are precisely those induced by a single vertex. Recently the conditional matching preclusion number of a graph was introduced to look for sets beyond those induced by a single...

We propose a framework to reconstruct human motion based on monocular camera video and motion database. In this framework, we use silhouettes for rough motion estimation based on a set of discriminative features and search motion database to find out the exact motion clips that meet with the video content. We model motion as a first-order Markov process. The transition probabilities between mot...

A novel method to identify trampoline skills using a single video camera is proposed herein. Conventional computer vision techniques are used for identification, estimation, and tracking of the gymnast’s body in a video recording of the routine. For each frame, an open source convolutional neural network is used to estimate the pose of the athlete’s body. Body orientation and joint angle estima...