Knee extension training device
A knee extension training device is provided with knee abutment rolls, heel abutment rolls and feet anchor rolls to facilitate a user from standing on the device in an upright manner with the knees, the heels, and the feet abutting the respective abutment rolls such that knee extension stretching and flexion exercise can be carried out by utilizing the user's own body weight.
This invention relates to devices for facilitating a user to carry out exercises of knee training by flexing and stretching to strengthening the knee joints.
People in occupations requiring repetitive kneeling, squatting, lifting of heavy weights, or athletes particularly in soccer, tennis, or long-distance running are prone to develop osteoarthritis of the knees. They experience decrease in the range of motion as well as significant stiffness and pain in the knee joints.
Regular moderate exercise or training can provide treatment to strengthen joints and to reduce pain and it can decrease the risk of osteoarthritis. The treatment plan will typically include a combination of the following regime: reducing body weight, exercise, and ingesting pain relievers and anti-inflammatory and non-steroidal drugs. Strengthening the muscles around the knees is an effective way to make the joint more stable and to facilitate the decrease of pain.
SUMMARY OF THE INVENTIONThe object of the present invention is to utilize the person's own body weight to perform knee extension training exercise for strengthening the quadriceps muscles so as to reduce stiffness and pain in the knee joints. Such strengthening is achieved with the fulcrum principle by maintaining the feet, ankle and legs of the person stationary with the support of adjustable knees, ankles, and feet braces in the form of abutment rolls while using the person's own body weight to perform stretching or extension and flexion of the knees.
The device for carrying out the above object comprises an adjustable base frame assembly provided with an adjustable body support assembly, an adjustable ankle support assembly, and an adjustable foot support or anchor assembly. The device facilitates the exercise of alternating flexion and extension of the knees to result in increase in strength and agility of the quadriceps muscles thus improving the stability of the knee joints without applying axial loading to the joints and without causing wear and tear on the knee joint cartilage.
The device allows the user to minimize axial loading of the knee joints while still benefitting from increase of the knee range of motion and the strengthening of the quadriceps muscles.
In the drawings which illustrate the essence of the invention,
The principle and method of knee stretching is shown in
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Two feet anchor rolls 26 and 27 are mounted to the lower end portion of the vertical mounting rod 10 with a lower collar 28. The feet anchor rolls 26 and 27 and the lower collar 28 have similar construction as knee abutment rolls 15 and 16 and upper collar 20. The lower collar 28 may be slidably adjustable to mount the two feet anchor rolls 26 and 27 at a selected position and latched fixedly in place by the spring-bias plunger 29 for abutting the upper of the feet of the user standing in the device of the present invention as best shown in
Two heel abutment rolls 30 and 31 are mounted on the front rod 13 of the inverted U-shaped mounting bracket 11 with a third collar 32 having a latching plunger 33. The heel abutment rolls and the third collar 32 have the same constructions as the knee abutment rolls 15 and 16 as well as the feet anchor rolls 26 and 27 and the upper and lower collars 20 and 28. As shown in
As best shown in
Basic knee training exercise may be conducted with simplified versions of the device according to the present invention as shown in
In the second embodiment as shown in
Claims
1. A knee extension training device comprising:
- a base supporting frame,
- a first vertical mounting rod located at a front portion of said base supporting frame,
- a second vertical mounting rod located at a rear portion of said base supporting frame and spaced from said first vertical mounting rod,
- a plurality of first mounting openings formed on said first vertical mounting rod,
- a plurality of second mounting openings also formed on said second vertical mounting rod,
- a first annular mounting collar having a central opening and two diametrically opposite through openings, said first annular mounting collar being slidably mountable on said first vertical mounting rod with said central opening therein engaging with said first vertical mounting rod,
- two knee abutment rolls mounted at diametrically opposite sides of said first annular mounting collar,
- a first securing plunger provided at said first annular mounting collar for latching said first annular mounting collar at a selected position on said first vertical mounting rod,
- a second annular mounting collar having a central opening and two diametrically opposite through openings, said second annular mounting collar being slidably mountable on said second vertical mounting rod,
- two heel abutment rolls mounted at diametrically opposite sides of said second annular mounting collar, and
- a second securing plunger provided at said second annular mounting collar for latching said second annular mounting collar at a selected position on said second vertical mounting rod.
2. A knee extension training device according to claim 1 wherein said first vertical mounting rod is a tubular rod extending in an upright manner on said base support frame and said first mounting openings are round openings formed on a front surface along a straight line of an upper portion of said first vertical mounting rod, and said second mounting openings are openings formed on a front surface along a straight line of a lower portion of said second mounting rod.
3. A knee extension training device according to claim 2 wherein said first securing plunger is a T-shaped pin extending through said first annular collar and having an inner end portion engaging with a selected one of said first mounting openings.
4. A knee extension training device comprising:
- a base supporting frame,
- a vertical mounting rod located at a front portion of said base supporting frame,
- a plurality of first mounting openings formed along a straight line on a front surface of an upper portion of said vertical mounting rod,
- a first mounting collar slidably mounted on said vertical mounting rod,
- two knee abutment rolls mounted on said first mounting collar and extending outward in diametrically opposite sides of said first mounting collar,
- a first securing plunger mounted on said first mounting collar, said first securing plunger having an inner end portion extending transversely through said first mounting collar to engage with a selected one opening of said first mounting openings,
- a rear mounting bracket located in an upright manner at a rear portion of said base supporting frame, said rear mounting bracket having a vertical arm,
- a plurality of second mounting openings formed along a straight line on a front surface of said vertical arm,
- a second mounting collar slidably mounted on said vertical arm of said rear mounting bracket,
- a second securing plunger mounted on said second mounting collar, said second securing plunger having an inner end portion extending transversely through said second mounting collar to engage with a selected one opening of said plurality of of second mounting openings,
- two heel abutment rolls mounted on said second mounting collar and extending outward in diametrically opposite sides of said second mounting collar,
- a third mounting collar slidably mounted on said vertical mounting rod and located at a lower portion of said vertical mounting rod,
- two feet abutment rolls mounted on said third mounting collar and extending outward in diametrically opposite sides of said third mounting collar,
- a third securing plunger mounted on said third mounting collar and operative for latching said third mounting collar at a selected position on said vertical mounting rod.
5. A knee extension training device according to claim 4 including a fourth mounting collar slidably mounted to said vertical mounting rod, a seat assembly mounted to said fourth mounting collar.
6. A knee extension training device according to claim 5 wherein said seat assembly includes two elongated arms having a lower end secured to said fourth mounting collar and an outer end secured to a bottom surface of a seat support plate, a seat hingedly mounted to said seat support plate, and said seat having two side arms.
7. A knee extension training device according to claim 6 including a fifth mounting collar slidably mounted on said vertical mounting rod and located below said fourth mounting collar to provide additional support for said seat assembly.
8. A knee extension training device according to claim 7 wherein said knee abutment rolls, heel abutment rolls, and feet anchor rolls are elongated bars having a soft material wrapped on their outer surface.
9. A knee extension training device according to claim 8 wherein said vertical mounting rod is a tubular rod and said rear bracket is a generally inverted U-shaped bracket having a vertical front leg, and said heel abutment rolls are mounted on said vertical front leg.
10. A knee extension training device according to claim 9 wherein said first securing plunger, said second securing plunger, said third securing plunger, and said fourth securing plunger are T-shaped pins mounted with a bias spring in respective mounting collars, and an inner end portion of said plunger is normally extending through respective mounting collars to engage with selected mounting openings for latching said mounting collars at selected positions.
11. A knee extension training device according to claim 1 wherein said first mounting rod is a vertical front leg of a generally U-shaped bracket, and said second mounting rod is a vertical rear leg of said U-shaped bracket.
12. A knee extension training device according to claim 1 wherein said first mounting rod is a vertical front leg of a J-shaped bracket and said front leg extending above said base frame in and overhanging spaced manner, and said second mounting rod is a vertical rear leg of said J-shaped bracket, said vertical rear leg being mounted to said base frame,
13. A knee extension training device according to claim 12 including two inverted L-shaped bars having a horizontal arm attached to an outer end of each one of said abutment rolls, and a downwardly extending outer end of said inverted L-shaped bars being slidably engageable with an upstanding sleeve on said base frame.
14. A knee extension training device according to claim 13 including a plurality of through openings formed on said outer end of said inverted L-shaped bars, a mounting through opening formed in said sleeve, a mounting pin insertable through said mounting through opening and a selected one of said through openings on said outer end of said inverted L-shaped bars to latch said inverted L-shaped bar to said sleeve.
Type: Application
Filed: Feb 4, 2020
Publication Date: Aug 5, 2021
Inventors: Eduard Levin (Thornhill), Jeff Sawyer , Gleb Gluhovsky (Olathe, KS)
Application Number: 16/873,114