the trunk rotation conditioning device of this invention provides the following . the user is in a weight bearing position that simulates a stance in many sports ( e . g ., golf , baseball or hockey ). the angle of the inclination ( posture ) is adjustable about a pivot to accommodate individual variation in the standing position . fig1 is a side view illustrating the basic elements of the trunk rotation conditioning device , as well as the position of the user and how it can accommodate to user size . in the preferred embodiment of a golf exercise apparatus , the device provides resistance during an exercise emulating a golf swing of a golfer to strengthen muscles of the axial skeleton and lower extremities of the performing golfer . fig1 shows exercise apparatus 10 that provides resistance during an exercise using dynamic movement for shoulder , hip , knee , back and abdominal musculature to strengthen muscles of the axial skeleton and lower extremities of performing user 12 . apparatus 10 comprises support base 14 , member 16 pivotally mounted to the support base , variable resistance , torso pivotally mounted axial shaft 18 coupled to pivotally mounted member 16 , shoulder harness 22 connected to torso axial shaft 18 , hip harness 24 connected to pelvis axial shaft 20 , torso independent torque resistor 26 connected to torso axial shaft 18 , and pelvis , independent torque resistor 28 connected to pelvis axial shaft 20 . the angle of inclination ( posture ) is adjustable along axis a - a ′. fig1 illustrates the standing neutral position of the user in the device . the user is strapped at the shoulder and hip using restraints which are connected rigidly to the arms that rotate about the axis “ a ” at pivots points . the length of these arms is adjustable to accommodate users of different sizes / heights . fig1 also shows controller 140 and computer 142 operating exercise apparatus 10 through conventional circuitry , not shown . controller 140 and computer 142 are wired to their respective drives , sensors and actuators in apparatus 10 through conventional circuitry , not shown . fig2 is a side view in perspective illustrating the hips and shoulders of user 12 . the hip and shoulder turn are shown in greater detail in fig3 . apparatus 10 includes a support base , a member pivotally mounted to the support base ; a torso pivotally mounted axial shaft coupled to the pivotally mounted member ; and a pelvis pivotally mounted axial shaft coupled to the pivotally mounted member as described for fig1 . fig3 is a front view of the prospective illustration showing a shoulder and hip turn to the left . the user locates himself / herself in this posture within machine 10 such that the axis a - a ′ of rotation of the exercise motion passes through user &# 39 ; s 12 spine , the desired axis of rotation of the hips and shoulders . fig3 shows shoulder harness portion 22 l and hip harness portion 24 l turned upwardly and to the left . also shown in shoulder harness portion 22 r and hip harness portion 24 r turned downwardly and to the left . fig2 and 3 illustrate the torso and pelvis rotation of the user towards the left . a shoulder harness is connected to the torso axial shaft ; and a hip harness is connected to the pelvis axial shaft . a torso , independent force resistor is connected to the torso axial shaft and includes a means for providing resistance in at least two directions . the hips and shoulders are provided with variable resistance about the pivots in the form of disc brakes ( fig4 ). these brakes can be in the form of dry friction , fluid damping , eddy currents , or magneto - heterodyne . the braking will provide resistance in either direction across the range of possible movement . fig3 is a front view that illustrates torso and pelvis rotation of the user towards the left . a pelvis , independent force resistor also is connected to the pelvis axial shaft , and includes a means providing resistance in at least two directions . in a preferred embodiment , the apparatus includes a means to independently lock the torso shaft in a neutral position and a means to independently lock the pelvis shaft in a neutral position . linear potentiometers are provided at the pivots points to measure the angular position of the torso and pelvis . load cells are located at the pivots to measure the exerted force of the user , independently at the torso and pelvis . fig4 is a view showing the hydraulic disk brakes . in another embodiment , magnetic brakes will be shown that provide the resistance to rotation at the torso and pelvis resistance arm axes of movement . the machine has the following additional attributes . the resistance of the shoulders and hips are independently adjustable , and will be user determined and controlled , via a control panel within reach of the user while in the device . the torso and pelvis pivot arms can be independently locked in the neutral position in order to isolate the exercise to the other element . fig4 shows resistor 26 and 28 in greater detail . resistors 26 and 28 each comprise caliper 30 , pivot arm 32 , rotor 34 and torque and angle measurement device 36 . these connect shaft 18 and 20 to member 16 through housing 38 . a real - time digital display unit will be provided to the user regarding the position and torque exerted by the torso and pelvis . the maximum difference between the torso and pelvis angle will be calculated and displayed for each exercise cycle . fig4 also shows axial assembly 19 in greater detail . axial assembly 19 connects arm 18 and arm 20 to member 16 through housing 38 . fig8 also shows adjustable torso angle control 17 connected to member 16 via housing 38 . fig5 illustrates shoulder turn according to this invention . the exercise apparatus provides resistance during an exercise using dynamic therapeutic movement for shoulder , hip , knee , back and abdominal musculature to strengthen muscles of the axial skeleton and lower extremities of a performing user . it includes a means for providing adjustable resistance in all directions and adjustable assisted stretching in all directions . fig6 illustrates side to side and front to back rotation according to this invention . the method includes steps of : providing an exercise apparatus that provides resistance during an exercise using dynamic therapeutic movement for shoulder , hip , knee , back and abdominal musculature to strengthen muscles of the axial skeleton and lower extremities of a performing user ; and providing adjustable resistance in all directions and adjustable assisted stretching in all directions . fig7 is a front view showing the preferred embodiments including back supports and a real time display unit . fig7 shows shoulder harness 22 , upper back support 72 , lower back support 74 , real time display unit 76 and support base 14 . display unit 76 preferably is positioned where the user may view the display . display unit 76 is connected to controller 140 and computer 142 through conventional circuitry , not shown . fig8 is a sectional view showing the preferred embodiments of magnetic brakes and an adjustable torso angle control . fig8 shows upper back arm 18 and lower back arm 20 connected to magnetic brakes 80 and 82 . magnetic brakes 80 and 82 replaces the disc or resistance brakes shown in fig4 . member 16 supports and houses magnetic brakes 80 and 82 . member 16 also supports and houses control 84 which provides an adjustable torso angle to apparatus 10 . adjustable torso angle 84 comprises a lever , slot and rod for controlling torso angle . fig9 is a sectional view showing the preferred embodiment of a control for the adjustable lower back support . fig9 shows adjustable lower back control 90 connected and positioned between lower back arm 20 and lower back support 74 . controls 92 provide adjustments for the hip size of the user . fig1 is a section view showing the preferred embodiment of a ratchet for the shoulder harness . fig1 shows ratchet 100 for shoulder harness 22 and upper back support 72 . fig1 is a section view showing the preferred embodiment of real time position display unit 76 . display unit 76 includes run screen 110 , current status screen 112 , cycle in use screen 114 , soft key functions 116 and conventional key pad 118 . fig1 is a sectional view showing the preferred embodiment of magnetic brake controls . fig1 shows control unit 140 including magnetic brake controls 120 and 122 . controls 120 and 122 are connected to control unit 140 , computer 142 and magnetic brakes 80 and 82 through conventional circuitry , not shown . in one embodiment , we employ a computer chip that tracks all aspects of performance over time . in this embodiment , a means measures at least one or all aspects of performance and converts the performance into an electrical signal representative of the performance being monitored . a programmed microprocessor including the computer chip is configured to identify the signal representative of the performance being monitored . the programmed microprocessor also is configured to identify and store the parameter ( performance ) being monitored . this enhanced version allows the professional to track their students . it also is used for the physical therapist and chiropractor to monitor a patient . in another embodiment , shoulder harness 22 is not a true harness connected to a user &# 39 ; s shoulders by a means such as a strap or belt . preferably , shoulder harness 22 has a distal end with handles attached thereto . the user grasps the handles during use of apparatus 10 . in still another embodiment , base 14 includes sensors which provide signals to the programmed microprocessor . these , for example , would help a pga professional , to monitor a student &# 39 ; s weight shift during a golf swing . knowing if a right handed golfer &# 39 ; s weight is on the inside of the right foot at the top of the back swing would be a valuable teaching tool . monitoring a weight shift to the outside of the left foot at the completion of the follow through would be equally valuable . the above detailed description of the present invention is given for explanatory purposes . it will be apparent to those skilled in the art that numerous changes and modifications can be made without departing from the scope of the invention . accordingly , the whole of the foregoing description is to be construed in an illustrative and not a limitative sense , the scope of the invention being defined solely by the appended claims .
this trunk rotation device uses dynamic movement of one &# 39 ; s body such as , shoulder , hip , knee , back , thigh , and abdominal musculature . the device provides a method for exercising the spinal column and the muscles of the torso , including those in the abdominal lumbar and thoracic regions involving rotational torque . in a preferred embodiment , the device is a golf exercise and flexibility apparatus . the golf exercise apparatus provides resistance to a golfer during a golf swing to strengthen and condition the muscles of the axial skeleton of the golfer in a functional posture .