The present invention discloses a swinging hula hoop, including a hula hoop body, the hula hoop body including a plurality of connecting pieces detachably connected end to end, and a side of the connecting piece close to the waist of a human body being provided with a first kneading device configured to transversely knead and massage the waist of the human body when the hula hoop is used; the first kneading device includes: a roller carrier provided on the side of the connecting piece close to the waist of the human body; and at least one first massage roller rotatably provided on the roller carrier and configured to transversely knead and massage the waist of the human body.

The present invention relates to improvements in or relating to tremor stabilisation apparatus and methods, in particular to gyroscopic devices for use in controlling tremors of parts of the body and for reducing effects of tremors on the human body. The apparatus includes a wearable element and at least one gyroscopic device mounted or mountable to the wearable element, the gyroscopic device including a gyroscope and a gyroscope housing. The at least one gyroscopic device may be mounted within the housing such that the gyroscope may precess with respect to the housing. The mount may include a hinge to which the gyroscope is mounted and a hinge plate or hinge mount to which the hinge is mounted for rotation with respect to the gyroscope housing, such as a turntable mounted to the gyroscope housing. The gyroscopic devices may include a control arrangement to control the precession of the gyroscope.

An exercise management device using a hula hoop having a device for measuring spinning direction and exercise amount includes: an annular body part; a sensor unit including a gyro sensor, an acceleration sensor, and a gravity sensor; a hula hoop including a control unit including a MICOM for receiving and analyzing a data value detected by the sensor unit to calculate and obtain exercise information, a communication unit having a Bluetooth chip for transmitting the exercise information or the data value, and a power unit for switching on/off the control unit; and a wireless communication device having a dedicated program for receiving the exercise information or the data value transmitted from the communication unit and displaying the exercise information.

Martial arts conditioning apparatus and methods of manufacture and use. In one embodiment, the martial arts conditioning apparatus includes a mounting post that includes a kicking post, the kicking post including a hemispherical structure disposed on a shaft of the kicking post; a base support structure that is configured to be mated with the hemispherical structure, the base support structure including a surface that is coupled to the martial arts conditioning apparatus via one or more of a first resistive apparatus and/or a first dampening apparatus; a multi-rod height adjuster assembly that is disposed adjacent the base support structure; and a resistive ball-socket mechanism that is coupled to the multi-rod height adjuster assembly via the use of a coupling mechanism.

Martial arts conditioning apparatus and methods of manufacture and use. In one embodiment, the martial arts conditioning apparatus includes a mounting post that includes a kicking post, the kicking post including a hemispherical structure disposed on a shaft of the kicking post; a base support structure that is configured to be mated with the hemispherical structure, the base support structure including a surface that is coupled to the martial arts conditioning apparatus via one or more of a first resistive apparatus and/or a first dampening apparatus; a multi-rod height adjuster assembly that is disposed adjacent the base support structure; and a resistive ball-socket mechanism that is coupled to the multi-rod height adjuster assembly via the use of a coupling mechanism.

A treadmill belt guard includes a weighted cylindrical body, a first arm, a second arm, a first adaptor, a second adaptor, a first interlocking fastener, and a second interlocking fastener. The first arm is externally connected onto a lateral surface of the weighted cylindrical body. The second arm is externally connected onto the lateral surface of the weighted cylindrical body. The first arm and the second arm are positioned parallel to each other. The first adaptor is terminally mounted to the first arm through the first interlocking fastener. The first arm is positioned in between the first adaptor and the weighted cylindrical body. The second adaptor is terminally mounted to the second arm through the second interlocking fastener. The second arm is positioned in between the second adaptor and the weighted cylindrical body.

A personal exercise device comprising a hoop-form tube containing ball weights for circulation, a handlebar cross-bridge spanning the tube diametrically and formed by a pair of bars extending side-by-side in spaced-apart, parallel relation across the tube. Pairs of elongate hand-grips are mounted transversely on the cross-bars such that the hand-grips can be grasped to orbit the device overhead to inevitably train core muscles of the trunk/torso when training muscles of the body extremities such as the arms and shoulders. The hand-grips can be parallel for exercising core muscles on opposite sides of the boy evenly; divergent for a semi-supinated grip; or convergent for a semi-pronated grip. Alternative handlebars are a single, zig-zag bar with hand grips on successive straight portions; a circular/wheel with hand-grips at intervals, mounted concentrically within the hoop by resilient supports bridging the hoop and handlebar; two arcuate bars spanning the hoop with hand-grips at intervals.

A resistive motion support mechanism joined to a mounting surface and to a base shaft for providing resistive support to the mounting surface as the mounting surface undergoes one or both of rotational and tilt movement relative to the base, the motion support mechanism including a support bearing connected to the mounting surface and to the base shaft which permits one or both of tilting and rotational motion of the mounting surface relative to the base; a pivot ball functionally attached to a portion of the base shaft; a resilient ring within a housing circumscribing the base shaft such that the resilient member is compressed between the housing and the base shaft by the relative movement between the base shaft and the mounting surface to provide a resistive force on the base shaft to resist the one or both of rotational and tilt movement; and, various means for varying the resistive force.

Methods and systems according to embodiments of the invention provide for a framework for privacy-preserving machine learning which can be used to obtain solutions for training linear regression, logistic regression and neural network models. Embodiments of the invention are in a three-server model, wherein data owners secret-share their data among three servers who train and evaluate models on the joint data using three-party computation (3PC). Embodiments of the invention provide for efficient conversions between arithmetic, binary, and Yao 3PC, as well as techniques for fixed-point multiplication and truncation of shared decimal values. Embodiments also provide customized protocols for evaluating polynomial piecewise functions and a three-party oblivious transfer protocol.

An exercise management device using a hula hoop having a device for measuring spinning direction and exercise amount includes: an annular body part; a sensor unit including a gyro sensor, an acceleration sensor, and a gravity sensor; a hula hoop including a control unit including a MICOM for receiving and analyzing a data value detected by the sensor unit to calculate and obtain exercise information, a communication unit having a Bluetooth chip for transmitting the exercise information or the data value, and a power unit for switching on/off the control unit; and a wireless communication device having a dedicated program for receiving the exercise information or the data value transmitted from the communication unit and displaying the exercise information.