This invention discloses an exercise machine with adjustable resistance. The exercise machine includes a fluid container, one or more paddles, a driving device, and an adjusting device. The one or more paddles are arranged in the fluid container into which a fluid is poured. The driving device comprises an adjusting rod to couple with the one or more paddles. The driving device transmits a user's force for driving the one or more paddles to rotate. The adjusting device can adjust a depth of the one or more paddles in the fluid, so as to provide differing degrees of resistance for the one or more paddles.

This invention discloses an exercise machine with adjustable resistance. The exercise machine includes a fluid container, one or more paddles, a driving device, and an adjusting device. The one or more paddles are arranged in the fluid container into which a fluid is poured. The driving device comprises an adjusting rod to couple with the one or more paddles. The driving device transmits a user's force for driving the one or more paddles to rotate. The adjusting device can adjust a depth of the one or more paddles in the fluid, so as to provide differing degrees of resistance for the one or more paddles.

A device to aid a swimmer in training includes a piece of swimwear and a plurality of flow resistance increasing structures attached to the swimwear. The flow resistance increasing structures include a fill material constructed with a polymerized, monofilament material. The polymerized, monofilament material can include tulle.

An oral device includes an intraoral bolus simulator comprising an exterior surface and having an interior volume Tillable with a fluid. An extraoral user interface extends from the bolus simulator, and can be used to locate or position the intraoral bolus simulator. In various embodiments, the fluid may be a gas or a liquid, or combinations thereof. In other embodiments, an oral device includes an extraoral handle, a shield connected to the handle, a tether extending from the shield, and a bolus simulator connected to the tether.

A training guidance instrument 200 includes a pressor part 2091, a heel placing part 2092A, and a control unit including rotary members 210 and 214, support members 211 and 215, rotary parts 202A and 202B, support members 212 and 216, and telescopic members 219 and 220. The control unit is configured to move the heel placing part 2092A toward the ground in response to application of a force Pw2 toward the ground which is stronger than upward force applied on the heel placing part 2092A when the heel placing part 2092A is positioned above and away from the ground and move the heel placing part 2092A upward in response to application of weaker force toward the ground than the force Pw2 on the heel placing part 2092A, while the second joint and third joints of the toes of the trainee are pressed by the pressor part 2091 and the heel is placed on the heel placing part 2092A.

A stationary exercise machine according to the present disclosure may include a frame, a crankshaft rotatably supported by the frame, first and second lower linkages, and first and second crank arms connected to opposite sides of the crankshaft such that rotation of either of the crank arms causes rotation of the crankshaft. The lower linkages may be operatively connected to the crankshaft and to a respective one of first and second pedals. Each of the lower linkages may include a reciprocating member operatively connecting one of the pedals with one of the crank arms. Each of the lower linkages may include an adjustable linkage connected between the reciprocating member and the respective crank arm, the adjustable linkage may vary a distance between an output end of the reciprocating member and an input end of the crank arm. Each of the pedals may be pivotally connected to the respective reciprocating members.

According to some embodiments, an apparatus for oral-motor and oral pharyngeal exercise may include an at least partially flexible, collapsible chamber formed to fit within a patient's mouth. An aperture may be formed in a flexible surface of the collapsible chamber to allow gas to flow into and out of an interior of the collapsible chamber. Moreover, a substantially inflexible wall of the collapsible chamber may be located opposite the aperture. According to some embodiments, the substantially inflexible wall incudes a coupling portion affixed to the flexible surface of the collapsible chamber and having a cleaning opening (e.g., an opening for optional cleaning). A cap portion may be adapted to be removably attached to the coupling portion to seal the interior of the collapsible chamber when attached.

A Pivoting Stepper Apparatus comprising a Frame Structure Member, a Foot Engagement Member, and an optional Resistance Member. The Frame Structure Member is comprised basically of a Base Frame Member and a Guide Platform Member. The Foot Engagement Member is pivotally mounted to the Base Frame Member and mainly comprises two Foot Support Members pivotally coupled together by a lever assembly such that they move in reciprocating upward and downward motions. The lever assembly is a dual lever assembly which keeps the Foot Support Member in a relatively horizontal positon while moving upward and downward. The Foot Support Members operatively engage the Guide Platform Member, with the upward and downward movements of the Foot Support Members create the pivoting movement of the Foot Engagement Member, and vice versa. The optional Resistance Member provides resistance in the pivoting motion of the Foot Engagement Member, and thus also in the upward and downward movements of the Foot Support Members.

A monitoring system includes a shoe and a sole integrated into the shoe. The monitoring system also includes a connection mechanism attached to an underside of the sole and is shaped to connect the sole to a pedal. A pressure sensor is incorporated into the shoe that senses a force exerted on the pedal when the shoe is connected to the pedal through the connection mechanism.

A system and method of using an exercise system having a resistance structure of handles connected to cables, which cables are connected to at least one pneumatic cylinder that creates resistance, wherein the resistance is adjusted by the user via actuators in the handles, so that the user does not need to release the handles to adjust the resistance. The system is typically supported by a frame to surround the user, and the pneumatic cylinder may be connected to an equalizing tank that may be housed within or integrated into the frame. The system may include a monitor to visually display system parameters and other information to the user. The system may calculate resistance and work done by the user by measuring piston displacement and speed, as well as using accelerometers or other devices integrated into the handles.