# US 9,873,017 B2 · Apparatus and methods for exercising a limb of a user > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,873,017 B2 - Document ID: US9873017B2 - Status: Granted - Kind: B2 - Application number: 14/715,274 - Filed: 2015-05-18 - Published: 2016-11-24 - Granted: 2018-01-23 - Earliest claimed: 2015-05-18 - Applicants: Gregory Barel - Inventors: Gregory Barel - Web page: https://patentgrep.com/patent/US9873017B2 ## CPC - A63B 23/08: for ankle joints - A63B 21/0552: {Elastic ropes or bands} - A63B 21/0557: {Details of attachments, e.g. clips or clamps} - A63B 21/4011: {to the lower limbs (means for physically limiting movements of body parts A63B69/0057)} - A63B 21/4015: {to the foot} - A63B 21/4025: {Resistance devices worn on the user's body (A63B21/065 takes precedence)} - A63B 21/4034: {for operation by feet} - A63B 23/10: for feet or toes - A63B 21/04: attached to static foundation {, e.g. a user} - A63B 21/0407: {Anchored at two end points, e.g. installed within an apparatus} - A63B 2210/50: Size reducing arrangements for stowing or transport - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract At least one elastic link may be simultaneously coupled to two different portions of a limb of a user in order to provide resistance to the limb when the limb attempts to change the distance between the two different portions of the limb. ## Claims ### Claim 1 Apparatus for use on a user's leg with respect to a stationary surface, wherein the user's leg comprises a cnemis, a foot, and an ankle joint that couples the cnemis to the foot, the apparatus comprising: an anchor component operative to be coupled to the cnemis at a first cnemis location along a length of the cnemis; a base component comprising a base body extending between a first base end and a second base end, the base body operative to be positioned between the foot and the stationary surface; an extender component comprising an extender body extending between a first extender portion that is coupled to the anchor component and a second extender portion that is coupled to the base component; and an elastic band comprising: a first portion of the elastic band that is operative to be coupled to the anchor component; and a second portion of the elastic band that is operative to be coupled to the base component, wherein: when the anchor component is coupled to the cnemis at the first cnemis location and the base body is positioned between the foot and the stationary surface and the first portion of the elastic band is coupled to the anchor component and the second portion of the elastic band is coupled to the base component, an elastic portion of the elastic band is operative to provide resistance when the foot attempts to push the second base end towards the stationary surface; the elastic band is a closed loop; the first portion of the elastic band is coupled to the anchor component by passing through a closed ring of the anchor component; and the second portion of the elastic band is operative to be removably coupled to the base component by looping under a portion of the base body such that the second portion of the elastic band is positioned between the base body and the stationary surface. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the second extender portion is rotatably coupled to the base component so that the base body is operative to rotate with respect to the extender body about an axis of rotation. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the base body is operative to rotate with respect to the extender body about the axis of rotation to a first orientation so that at least a portion of the base body contacts a portion of the anchor component. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein at least one of the anchor component and the elastic band is operative to hold the base body at the first orientation when the base body is not positioned between the foot and the stationary surface. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the apparatus further comprises another elastic band comprising: a first portion of the other elastic band that is operative to be coupled to the anchor component; and a second portion of the other elastic band that is operative to be coupled to the base component. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein: when the anchor component is coupled to the cnemis at the first cnemis location and the base body is positioned between the foot and the stationary surface and the first portion of the elastic band is coupled to the anchor component and the first portion of the other elastic band is coupled to the anchor component and the second portion of the elastic band is coupled to the base component and the second portion of the other elastic band is coupled to the anchor component, the elastic band and the other elastic band are operative to provide a first resistance when the foot attempts to push the second base end towards the stationary surface; when the anchor component is coupled to the cnemis at the first cnemis location and the base body is positioned between the foot and the stationary surface and the first portion of the elastic band is coupled to the anchor component and the first portion of the other elastic band is coupled to the anchor component and the second portion of the elastic band is coupled to the base component and the second portion of the other elastic band is not coupled to the anchor component, the elastic band is operative to provide a second resistance when the foot attempts to push the second base end towards the stationary surface; and the second resistance is less than the first resistance. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the extender body prevents the anchor component from moving away from the first cnemis location when the anchor component is coupled to the cnemis at the first cnemis location and the base body is positioned between the foot and the stationary surface. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein: the second extender portion is coupled to the base component proximate the first base end; and the second portion of the elastic band is operative to be coupled to the base component proximate the second base end. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein: the first extender portion is coupled to a first side of the anchor component; the apparatus further comprises another extender component comprising another extender body extending between another first extender portion that is coupled to a second side of the anchor component and another second extender portion that is coupled to the base component; and when the anchor component is coupled to the cnemis at the first cnemis location, the first side of the anchor component is adjacent a first side of the cnemis and the second side of the anchor component is adjacent a second side of the cnemis that is opposite the first side of the cnemis. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein: the apparatus further comprises another elastic band that is a closed loop; a first portion of the other elastic band is coupled to the anchor component by passing through a second closed ring of the anchor component; and a second portion of the other elastic band is operative to be removably coupled to the base component by looping about a portion of a hook of the base component. ### Claim 11 (depends on 1) The apparatus of claim 1, wherein the portion of the base body comprises a channel along a bottom surface of the base component for retaining at least a portion of the second portion of the elastic band when the second portion of the elastic band is coupled to the base component. ### Claim 12 (depends on 1) The apparatus of claim 1, wherein, when the anchor component is coupled to the cnemis at the first cnemis location and the base body is positioned between the foot and the stationary surface and the foot holds the first base end against the stationary surface and the first portion of the elastic band is coupled to the anchor component and the second portion of the elastic band is coupled to the base component, the elastic portion of the elastic band is operative to provide resistance when the foot attempts to push the second base end towards the stationary surface. ### Claim 13 A method for exercising a user's limb using an exercise apparatus that comprises an anchor component and a plurality of bands, wherein each band of the plurality of bands comprises a band body that extends between a first band portion that is coupled to the anchor component and a second band portion, wherein the user's limb comprises a first limb portion, a second limb portion, and a joint limb portion between the first limb portion and the second limb portion, wherein the first limb portion is a cnemis, wherein the second limb portion is a foot, wherein the joint limb portion is an ankle joint, and wherein the method comprises: coupling the anchor component to the first limb portion at a first limb position along the first limb portion; coupling the second band portion of each band of a subset of bands of the plurality of bands to the second limb portion by looping the second band portion of each band of the subset of bands about the second limb portion, such that the second band portion of every band of the subset of bands of the plurality of bands is the only portion of the plurality of bands coupled to the the second limb portion; and after both of the couplings, providing a resistance with the band body of each band of the subset of bands of the plurality of bands to the user's limb when the user's limb increases the distance between the first limb position and a portion of the second limb portion using the joint limb portion. ### Claim 14 (depends on 13) The method of claim 13, further comprising: after the providing, coupling the second band portion of each band of another subset of bands of the plurality of bands to the second limb portion, such that the second band portion of every band of the other subset of bands of the plurality of bands is the only portion of the plurality of bands coupled to the the second limb portion; and after the coupling of the second band portion of each band of the other subset and while the anchor component remains coupled to the first limb portion at the first limb position along the first limb portion, providing another resistance with the band body of each band of the other subset of bands of the plurality of bands to the user's limb when the user's limb increases the distance between the first limb position and the portion of the second limb portion using the joint limb portion, wherein: the other subset is different than the subset; and the other resistance is different than the resistance.