Fitness training apparatus and system

Abstract

A fitness training apparatus comprising a controller configured to communicate instructions to a load generator to apply a selectively adjustable load to at least one retractable line provided in or on a base, the retractable line having a free end region, the at least one retractable line being extendible from a retracted state to an extended state upon application of a force to the free end region, wherein the load applied to the at least one retractable line acts against the force applied to the free end region. The controller is configured to perform operations comprising setting a target speed band for the at least one retractable line, receiving a speed of the at least one retractable line, and responsive to comparing the speed to the target speed band, modifying the selectively adjustable load to the at least one retractable line to maintain the target speed band.

1 . A fitness training apparatus comprising:
 a controller configured to communicate instructions to a load generator to apply a selectively adjustable load to at least one retractable line provided in or on a base, the retractable line having a free end region, the at least one retractable line being extendible from a retracted state to an extended state upon application of a force to the free end region, wherein the load applied to the at least one retractable line acts against the force applied to the free end region, wherein the controller is configured to perform operations comprising:
 setting a target speed band for the at least one retractable line; 
 receiving a speed of the at least one retractable line; and 
 responsive to comparing the speed of the at least one retractable line to the target speed band, modifying the selectively adjustable load to the at least one retractable line to maintain the target speed band. 
   
     
     
         2 . The fitness training apparatus of  claim 1 , wherein the controller comprises one or more sensors for sensing use or operation of the at least one retractable line, including sensing the speed of the at least one retractable line. 
     
     
         3 . The fitness training apparatus of  claim 1 , wherein the controller comprises one or more sensors for sensing use or operation of the at least one retractable line, including sensing one or more of a current position, a motion, a speed, or an extension of the at least one retractable line, wherein the controller is configured to adjust the load applied to the at least one retractable line by the load generator in dependence on the use or operation of the at least one retractable line. 
     
     
         4 . The fitness training apparatus of  claim 1 , wherein the controller is configured for communication with a user device for one or more of input of training settings by the user or displaying training information to the user during training. 
     
     
         5 . The fitness training apparatus of  claim 4 , wherein the user device comprises software executing on the user device for communication with the controller. 
     
     
         6 . The fitness training apparatus of  claim 1 , wherein the controller is configured to set the speed band responsive to receiving an input of a velocity target training setting, 
     
     
         7 . The fitness training apparatus of  claim 1 , wherein the target speed band is defined by a minimum velocity and a maximum velocity. 
     
     
         8 . The fitness training apparatus of  claim 1 , wherein modifying the selectively adjustable load to maintain the target speed band comprises varying the load according to a function. 
     
     
         9 . The fitness training apparatus of  claim 8 , wherein the function comprises a linear function. 
     
     
         10 . The fitness training apparatus of  claim 8 , wherein function comprises a log function. 
     
     
         11 . The fitness training apparatus of  claim 1 , wherein the one or more sensors comprise at least a rotary encoder for detecting rotation of a spool or drum for determining the speed of the at least one retractable line as it is extended from or retracted onto the spool or drum. 
     
     
         12 . The fitness training apparatus of  claim 1 , wherein the controller modifies the load applied to the at least one retractable line at regular intervals or at discrete times. 
     
     
         13 . The fitness training apparatus of  claim 1 , wherein the at least one retractable line is connected with at least one end of a bar to enable performance of squat exercises. 
     
     
         14 . The fitness training apparatus of  claim 1 , wherein a handle is connected to the free end of the at least one retractable line, wherein the handle comprises a cuff to enable performance of arm curl exercises. 
     
     
         15 . A method, comprising:
 setting, by a controller of a fitness training apparatus, a target speed band for a retractable line of the fitness training apparatus;   receiving, by a controller of a fitness training apparatus and from a sensor device, a speed of the retractable line;   responsive to comparing the speed of the retractable line to the target speed band, modifying, by the controller of the fitness training apparatus, a selectively adjustable load to the retractable line to maintain the target speed band, wherein modifying the selectively adjustable load comprises communicating instructions to a load generator to modify the selectively adjustable load to the retractable line.   
     
     
         16 . The method of  claim 15 , wherein setting the target speed band comprises receiving, from a user device, instructions to apply a targeted velocity mode for the fitness training apparatus. 
     
     
         17 . The method of  claim 15 , wherein wherein modifying the selectively adjustable load to maintain the target speed band comprises varying the load according to a function. 
     
     
         18 . The method of  claim 17 , wherein the function comprises a linear function. 
     
     
         19 . The method of  claim 17 , wherein function comprises a log function. 
     
     
         20 . The method of  claim 15 , wherein the sensor comprises a rotary encoder for detecting rotation of a spool or drum for determining the speed of the retractable line as it is extended from or retracted onto the spool or drum.