Method of preparing a golf training surface

Abstract

A spray comprising a powder-like substance may be used to mark a golf training surface. The powder-like substance may be moved by contact with a golf club during a golf swing to generate visual feedback. The visual feedback may indicate one or more characteristics associated with the golf swing.

Description

TRAQ.003WO PATENT APPLICATIONMETHOD OF PREPARING A GOLF TRAINING SURFACEREFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 674,673 filed July 23, 2024, the entire disclosure of which is hereby incorporated by reference herein in its entirety.BACKGROUNDField

[0002] The disclosed technology generally relates to sports training aids, and more particularly to golf training aids to provide visual feedback on swing mechanics and ground interaction.Description of the Related Art

[0003] Traditional golf training aids often involve physical devices or high-tech equipment that can be cumbersome, expensive, and intimidating for amateur golfers. Golfers will place the focus on ball flight to measure the success of their practice and swings. Therefore, rather than ball flight, evaluating interaction of the club with the ground can provide a more accurate way to determine the effectiveness of their practice and evaluate their swing. Thus, a simple, safe, and affordable method for obtaining visual feedback on golf swing and ground interaction is needed.SUMMARY

[0004] The present disclosure provides methods of generating visual feedback indicative of a golf swing characteristic.

[0005] In one aspect, a method of generating visual feedback of a golf swing characteristic according to the present disclosure comprises providing a spray configured to temporarily mark a golf training surface without permanently staining the golf training surface, wherein the spray comprises a powder-like substance. The method further comprises coating the golf training surface with the powder-like substance using the spray. The method further comprises performing a golf swing on the golf training surface using a golf club, wherein thegolf swing moves at least some of the powder-like substance from an original location on the golf training surface, wherein the movement of at least some of the powder-like substance from the golf training surface generates a visual feedback indicative of a swing characteristic associated with the golf swing.

[0006] In another aspect, a method of preparing a golf training surface comprises providing a powder-like substance configured to temporarily mark a golf training surface without permanently staining the golf training surface. The method further comprises applying the powder-like substance to the golf training surface such that the powder-like substance is configured to be removable by a physical contact with a golf club. The method further comprises performing a golf swing on the golf training surface using the golf club, such that the golf club contacts the golf training surface and moves at least some of the powder-like substance from its original location on the golf training surface; wherein the movement of at least some of the powder-like substance from the golf-training surface generates a visual feedback indicative of a swing characteristic associated with the golf swing.

[0007] In some embodiments, the golf training surface may include artificial turf. In some embodiments, the golf training surface may include grass. In some embodiments, the powder-like substance adheres to the golf training surface. The powder-like substance may adhere to the golf training surface with a strength that prevents the powder-like substance from being moved by the force of wind. In some embodiments, the powder-like substance may be removed from the surface by physical contact with an object. In some embodiments, the powder-like substance is configured to adhere to the golf training surface for no longer than two weeks in the absence of physical contact with an object. In some embodiments, the movement of at least some of the powder-like substance may be caused by the physical contact of a golf club with a golf training surface.

[0008] In some embodiments, a visual feedback is generated immediately after performing a golf swing. In some embodiments, the visual feedback may be observed to determine one or more metrics associated with the visual feedback. In some embodiments, the metrics may include, but are not limited to a starting point, a trajectory or direction, a depth, an impact angle, a length, and an ending point. In some embodiments, one or more of the metrics may be used to indicate a swing characteristic or pattern associated with the golf swing. In some embodiments, the visual feedback indicates a swing path of the golf swing. In someembodiments, the visual feedback indicates an impact zone of the golf club with the golf training surface. In some embodiments, the visual feedback indicates an angle of attack of the golf swing. In some embodiments, the visual feedback indicates a club face angle of the golf club during an impact with the golf training surface. In some embodiments, visual feedback indicates a level of follow through of the golf swing.

[0009] In some embodiments, the next golf swing may be adjusted based on the indications provided by the visual feedback. In some embodiments, the next golf swing may be performed without reapplying the powder-like substance to the golf training surface. However, in some embodiments, the powder-like substance may be reapplied to the golf training surface prior to performing the next swing.BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1A is a top view of a golf training surface coated with a powder-like substance, according to embodiments, prior to a golf swing.

[0011] FIG. IB is a top view of the golf training surface coated with the powder- like substance, according to embodiments, after the golf swing has been performed on the golf training surface.

[0012] FIG. 2 shows possible visual feedback generated by a golf swing using a golf club on a golf training surface coated with a powder-like substance, according to embodiments.

[0013] FIG. 3A illustrates visual feedback generated by different golf swings indicating a swing path of the golf swings.

[0014] FIG. 3B illustrates visual feedback generated by different golf swings indicating an impact zone of a golf club on a golf training surface.

[0015] FIG. 3C illustrates visual feedback generated by different golf swings indicating an angle of attack of the golf swing using a golf club.

[0016] FIG. 3D illustrates visual feedback generated by different golf swings indicating a face angle of a golf club upon contact with a golf training surface.

[0017] FIG. 3E illustrates visual feedback generated by different golf swings indicating a level of follow through of the golf swing.

[0018] FIG. 4 is a flow diagram of a method of generating a visual feedback of a golf swing characteristic using a powder-like substance.DETAILED DESCRIPTION

[0019] Golf stands as one of the only sports where the majority of players train under significantly different conditions than those that they face during official play. For example, players that are training their golf swing will often use turf mats at golf ranges, in contrast to the grass and dirt used on the course. However, a golf club often glides along turf during a golf swing, while it does not on grass. Thus, golfers will often struggle on the course to replicate their success from training at the range.

[0020] Numerous golf instructors and professionals have emphasized the importance of perfecting golf ball impact in training. However, perfecting golf ball impact requires players to obtain feedback on their golf swings, allowing them to correct and adjust their swing as needed. There are several golf training aids available to assist golfers in improving their golf stroke.

[0021] For example, some golf professionals may use launch monitors, which are electronic devices that use radar technology to track ball flight characteristics and collect data on golf swings. However, this training aid can be highly expensive and cumbersome to use for an amateur golf player. Another existing golf training aid is impact mats that use special fabric to leave a mark where an impact occurs. However, many impact mats fail to properly mimic hitting conditions, decreasing their effectiveness as a training tool. Some golfers also use alignment aids, which are physical objects that help golfers to adjust their position during a golf swing. However, many non-professional golfers may be intimidated by this training aid, due to the high possibility of hitting the alignment aid during a golf swing and causing injury to themselves or damage to the equipment. Thus, an effective golf training aid that is inexpensive, simple, and safe is needed.

[0022] The present disclosure provides methods of generating visual feedback by applying a powder-like substance to a surface and causing a movement of at least some of the powder-like substance from its original location. The visual feedback may indicate how a foreign object has interacted with a marked area of the surface. In some embodiments, the method may be performed on a golf training surface. The golf training surface may be anysurface that is used to perform a golf swing on. In some embodiments, the golf training surface may be artificial turf. In some embodiments, the golf training surface may be natural grass. In some embodiments, the method may be performed on a concrete or asphalt surface.

[0023] The method may comprise providing a powder or powder-like substance. In some embodiments, the powder-like substance may be configured to be applied to a surface without permanently staining the surface or leaving a residue. In some embodiments, the powder-like substance may adhere to the surface such that it is not removed absent an interaction with a foreign physical object or chemical. For example, the powder-like substance may adhere to the surface until it comes into contact with a swinging golf club or is washed away using water. In some embodiments, the powder-like substance may adhere to the surface such that it is not moved by the force of winds up to 10 mph, 20 mph, 30 mph, 40 mph or any speed within a range defined by any of these values. In some embodiments, the powder-like substance may adhere to the surface such that it is not moved by light rain.

[0024] The method may comprise applying the powder-like substance to a surface. The powder-like substance may be applied where an object is expected to contact the surface. In some embodiments, the powder-like substance may be applied to a golf training surface. In some embodiments, the powder-like substance may be applied to a tennis court surface or a construction site surface. The powder-like substance may be applied in any suitable size or shape to allow a desired object to contact the applied substance. In some embodiments, the powder-like substance may be applied in any size or shape suitable to generate a desired visual feedback from an object contacting the applied substance. For example, the powder-like substance may be applied in a shape including, but not limited to, a square, rectangle, circle, or line. In some embodiments, the powder-like substance may be applied to a surface by coating the surface with a spray comprising the powder-like substance. The spray may be an aerosol spray. In some embodiments, the spray may comprise the powder-like substance along with a propellant in a canister. The spray may be used to coat a desired portion of the surface with the powder-like substance. The propellant may comprise, but is not limited to, butane, isobutane, propane, or some mixture thereof. In some embodiments, the powder-like substance may comprise a dye, such that the powder-like substance may be provided in different colors.

[0025] The method may comprise causing at least some of the powder-like substance to be moved from its original location on the surface. The movement of at least someof the powder-like substance may generate a visual feedback indicating a characteristic of how a foreign object has interacted with the surface. For example, the method may comprise performing a golf swing using a golf club on a golf training surface. The golf club may be any physical object used to perform a golf swing. In some embodiments, the golf club may be any object suitably used for a golf swing. For example, the golf club may be a wood, an iron, a wedge, a hybrid, a putter, a chipper, or any other variations of golf club. The golf swing may be performed on a target disposed on or around the golf training surface. In some embodiments, a target may be disposed on the golf training surface. In some embodiments, the target may be a small object disposed on top of the golf training surface. In some embodiments, the target may be a golfball. In some embodiments, the target may be an area of the golf training surface without a separate physical object.

[0026] In some embodiments, the golf swing may be performed on a target within a portion of the golf training surface having the powder-like substance. In some embodiments, the golf swing may move at least some the powder-like substance from an original location on the golf training surface. In some embodiments, the movement of at least some of the powder- like substance may generate a visual feedback indicative of a swing characteristic associated with the golf swing.

[0027] FIG. 1A illustrates a top view of a golf training surface 100 that has been coated with a powder-like substance 104, according to embodiments, prior to a golf swing. The coating 108 may be sized and shaped in any suitable way to allow contact with the golf club during a golf swing. In some embodiments, the coating 108 may be in the shape of a rectangle. In some embodiments, the coating 108 may cover the entire golf training surface 100. In some embodiments, the method may comprise causing a golf swing target 112, such as a golf ball, to be placed on the golf training surface. In some embodiments, the target 112 may be placed on top of the coating. In some embodiments, the target 112 may be placed near or around the coating.

[0028] FIG. IB illustrates a top view of a golf training surface 100 with a coating 108 of the powder-like substance 104, according to embodiments, after a golf swing has been performed on the coated area of the golf training surface 100. The arrow 116 indicates the general direction of the golf swing. The golf swing performed on the coated golf training surface may generate a visual feedback 120 indicative of the path of the golf swing. In someembodiments, the visual feedback 120 may be generated immediately after the golf swing has been performed. The visual feedback 120 may be generated by the physical contact of the golf club with the coating 108 of powder-like substance 104 on the golf training surface 100. The physical contact of the golf club with the powder-like substance 104 on the golf training surface 100 may move at least some of the powder-like substance 104 from an original location on the golf training surface 100 to generate the visual feedback 120. The visual feedback 120 may display the interaction of the golf club with the golf training surface 100 and thus reflect the movement of the golf club during the golf swing. In some embodiments, the generated visual feedback 120 may be indicative of a golf swing characteristic, including but not limited to, swing path, impact zone, angle of attack, club face angle, and follow through.

[0029] FIG. 2 illustrates a top view of a visual feedback 120 generated by a golf swing using a golf club on a golf training surface 100 coated with a powder-like substance 104, according to embodiments. In some embodiments, the visual feedback 120 may provide one or more metrics associated with the golf swing to indicate a golf swing characteristic. As indicated in FIG. 2, in some embodiments, the visual feedback may indicate a starting point 200, a direction 204, a depth 208, an impact angle 212, a length 216, and an ending point 220. In some embodiments, the visual feedback 120 may be used by the golfer to adjust their golf swing in real time.

[0030] FIG. 3A illustrates visual feedback generated by different golf swings indicating a swing path of the golf swings. The arrows 116 may indicate the general direction of the golf swing. The swing path may include a direction of the golf club during the golf swing. In some embodiments, the swing path may also indicate a trajectory of the golf swing. The swing path may be crucial for golfers to correct directional errors in their swing. In some embodiments, the visual feedback may itself have a trajectory or direction that indicates the swing path of the golf swing. In some embodiments, the visual feedback may indicate an outside-in swing path, such as the visual feedback 304. In some embodiments, the visual feedback may indicate a straight swing path, such as the visual feedback 308. In some embodiments, the visual feedback may indicate an inside-out swing path, such as the visual feedback 312.

[0031] FIG. 3B illustrates visual feedback generated by different golf swings indicating an impact zone of a golf club on a golf training surface 100. The arrows 116 mayindicate the general direction of the golf swing. The impact zone may be observed relative to the position of the target on the golf training surface. The impact zone may include the point where the golf club make initial contact with the golf training surface. Observing the impact zone relative to a target position may help golfers identify issues with timing and position during a golf swing. FIG. 3B illustrates the target position 316; however, in most cases, the target would no longer remain at this position once the visual feedback is generated. In some embodiments, the visual feedback may have a starting point that indicates the impact zone. For example, referring to FIG. 3B, the dashed line 320 illustrates that the golf swing associated with the visual feedback 324 had an impact zone closer to the target than the golf swing associated with the visual feedback 328.

[0032] FIG. 3C illustrates visual feedback generated by different golf swings indicating an angle of attack of the golf swing using a golf club. The arrows 116 may indicate the general direction of the golf swing. The angle of attack includes the steepness or shallowness of the golf club at an initial contact with the golf training surface. Adjusting the angle of attack may help golfers achieve a cleaner golf swing. In some embodiments, the depth or intensity of the visual feedback may indicate the angle of attack. For example, referring to FIG. 3C, the visual feedback 332 having a deeper mark, may indicate a steeper angle of attack than the visual feedback 336.

[0033] FIG. 3D illustrates visual feedback generated by different golf swings indicating a club face angle of a golf club upon contact with a golf training surface 100. The arrows 116 may indicate the general direction of the golf swing. The club face angle may be the angle of the club face upon initial contact with the golf training surface. A closed club face faces a direction to the left of the general direction arrow 116, a square club face faces the same direction as the general direction arrow 116, and an open club face faces a direction to the right of the general direction arrow 116. The visual feedback may indicate the club face angle by the angle at the starting point of the visual feedback. Adjusting the club face angle may help golfers achieve the desired trajectory or direction of a target of their golf swing. Referring to FIG. 3D, the obtuse angle 342 at the starting point of the visual feedback may indicate a closed club face, as shown by the visual feedback 340. In another example, the 90° angle 342’ at the starting point of the visual feedback may indicate a square club face, as shown by the visual feedback 344. In another example, the acute angle 342” may indicate an open club face, asshown by the visual feedback 348. Although the examples in FIG. 3D illustrate the visual feedback 340, 344, and 348 extending in the same direction as the indicated club face, embodiments are not so limited. For example, in some embodiments, the angle at the starting point of the visual feedback may indicate a closed club face facing the left, but the direction of the entire visual feedback, indicating swing path, may go towards the right.

[0034] FIG. 3E illustrates visual feedback generated by different golf swings indicating a level of follow through of the golf swing. The arrows 116 may indicate the general direction of the golf swing. Improving the quality of follow through can help golfers achieve a golf swing with increased power and control. The visual feedback may have a length and an ending point that indicates the level of follow through of the golf swing. In some embodiments, the length may be the distance between the starting point and ending point of the visual feedback. For example, referring to FIG. 3E, the visual feedback 352 may indicate a different level of follow through than the visual feedback 356, as the length 360 of the visual feedback 352 is longer than the length 364 of the visual feedback 356. In some embodiments, observing the ending point relative to a target position, such as a golf ball, prior to the golf swing may indicate the quality of the follow through. For example, referring to FIG. 3E, the longer length 368 between the target position 316 and the ending point for the visual feedback 352 may indicate a different quality of follow through than the length 372 of visual feedback 356.

[0035] FIG. 4 illustrates a flow diagram of a method of generating a visual feedback of a golf swing characteristic using a powder-like substance, according to some embodiments. The method is described with reference to the golf training surface of FIGS. 1A and IB. The method may include, but is not limited to, the following steps.

[0036] The method may comprise providing 404 a spray configured to temporarily mark a golf training surface without permanently staining the golf training surface or without rendering it difficult to restore the golf training surface to a condition prior to the spraying (e.g., without using a paint-like substance that is difficult to remove or not easily removable from the golf training surface). The spray may comprise a powder-like substance, or variations thereof, as described herein. In some embodiments, the method may comprise providing the powder-like substance in an alternative form than a spray, wherein the substance is configured to temporarily mark a golf training surface without permanently staining the golf training surface.

[0037] The method may further comprise coating 408 the golf training surface with the powder-like substance using the spray. The spray may further comprise one or more of a propellant or a dye. In some embodiments, this step may comprise applying the powder-like substance to the golf training surface by other means of application. The coated area of the golf training surface may be of any size or shape suitable for generating a visual feedback relating to the golf swing. The coated area of the golf training surface may be varied depending, for example, on the desired information to be collected.

[0038] In some embodiments, the method may comprise causing a target, such as a golf ball, to be placed on top of the golf training surface. In some preferred embodiments, the golf ball may be placed anywhere on top of the coating of the powder-like substance. However, in some embodiments, the golf ball may be placed adjacent to the coating of the powder-like substance. In some embodiments, the method does not comprise causing an object to be placed on top of the golf training surface. In such embodiments, the target may be an area of the coated golf training surface. For example, a golfer may practice golf swings with a golf club but without hitting any golfballs.

[0039] The method may further comprise performing 412 a golf swing on the golf training surface using a golf club. In some embodiments, the golf swing moves at least some of the powder-like substance from an original location on the golf training surface. The movement of the powder-like substance may be caused by the physical contact of the golf club with the coating on the golf training surface. The movement of at least some of the powder- like substance may generate a visual feedback indicative of a golf swing characteristic associated with the performed golf swing, as described in embodiments herein. In some embodiments, the visual feedback is generated immediately after performing the golf swing.

[0040] In some embodiments, the method may further comprise observing the visual feedback to obtain one or more metrics associated with the visual feedback. In some embodiments, the metrics may include, but are not limited to, a starting point, a trajectory or direction, a depth, an impact angle, a length, and an ending point. In some embodiments, the method may comprise using the one or more metrics to indicate a swing characteristic or pattern associated with the golf swing. The visual feedback may indicate swing characteristics such as, but not limited to, swing path, impact zone, angle of attack, club face angle, and followthrough. The method may further comprise adjusting a next golf swing based on the swing characteristic or pattern indicated by the visual feedback.

[0041] The method may comprise reapplying 416 the powder-like substance may be to the golf training surface after the golf swing. In some embodiments, the method may further comprise reapplying the powder-like substance to the golf training surface prior to the next golf swing. However, in some embodiments, the next golf swing may be performed without reapplying the powder-like substance to generate a second visual feedback. In some embodiments, the method may further comprise performing the next golf swing on a different area of the golf training surface with the powder-like substance.

[0042] Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise,” “comprising,” “include,” “including” and the like are to be construed in an inclusive sense, as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to.” The word “coupled,” as generally used herein, refers to two or more elements that may be either directly connected, or connected by way of one or more intermediate elements. Likewise, the word “connected,” as generally used herein, refers to two or more elements that may be either directly connected, or connected by way of one or more intermediate elements. Additionally, the words “herein,” “above,” “below,” and words of similar import, when used in this application, shall refer to this application as a whole and not to any particular portions of this application. Where the context permits, words in the above Detailed Description using the singular or plural number may also include the plural or singular number, respectively. The word “or” in reference to a list of two or more items, that word covers all of the following interpretations of the word: any of the items in the list, all of the items in the list, and any combination of the items in the list.

[0043] Moreover, conditional language used herein, such as, among others, “can,” “could,” “might,” “may,” “e.g.,” “for example,” “such as” and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements and / or states. Thus, such conditional language is not generally intended to imply that features, elements and / or states are in any way required for one or more embodiments or whether these features, elements and / or states are included or are to be performed in any particular embodiment.

[0044] While certain embodiments have been described, these embodiments have been presented by way of example only and are not intended to limit the scope of the disclosure. Indeed, the novel apparatus, methods, and systems described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions, and changes in the form of the methods and systems described herein may be made without departing from the spirit of the disclosure. For example, while features are presented in a given arrangement, alternative embodiments may perform similar functionalities with different components and / or sensor topologies, and some features may be deleted, moved, added, subdivided, combined, and / or modified. Each of these features may be implemented in a variety of different ways. Any suitable combination of the elements and acts of the various embodiments described above can be combined to provide further embodiments. The various features and processes described above may be implemented independently of one another or may be combined in various ways. All possible combinations and subcombinations of features of this disclosure are intended to fall within the scope of this disclosure.

Claims

WHAT IS CLAIMED IS:

1. A method of generating visual feedback of a golf swing characteristic comprising: providing a spray configured to temporarily mark a golf training surface without permanently staining the golf training surface, wherein the spray comprises a powder- like substance; coating the golf training surface with the powder-like substance using the spray; and performing a golf swing on the golf training surface using a golf club, wherein the golf swing moves at least some of the powder-like substance from an original location on the golf training surface; wherein the movement of the at least some of the powder-like substance from the golf training surface generates a visual feedback indicative of a swing characteristic associated with the golf swing.

2. The method of Claim 1, wherein the golf training surface comprises artificial turf.

3. The method of Claim 1, wherein the powder-like substance is configured to adhere to the golf training surface.

4. The method of Claim 3, wherein the powder-like substance is configured to adhere to the golf training surface with a strength that prevents the powder-like substance from being moved by the force of winds up to 30 mph.

5. The method of Claim 1, wherein the powder-like substance is configured to be movable from the golf training surface by a physical contact with a moving object.

6. The method of Claim 5, wherein the movement of the at least some of the powder-like substance is caused by a physical contact of the golf club with the powder-like substance on the golf training surface.

7. The method of Claim 1, wherein the powder-like substance is configured to be removable from the golf training surface using water.

8. The method of Claim 1, wherein the visual feedback is generated immediately after the golf swing.

9. The method of Claim 1, wherein the visual feedback indicates a swing path of the golf swing.

10. The method of Claim 9, wherein the visual feedback indicates an impact zone of the golf club with the golf training surface.

11. The method of Claim 1 , wherein the visual feedback indicates an angle of attack of the golf swing.

12. The method of Claim 1, wherein the visual feedback indicates a club face angle of the golf club during an impact with the golf training surface.

13. The method of Claim 1, wherein the visual feedback indicates a level of follow through of the golf swing.

14. The method of Claim 1, further comprising observing the visual feedback.

15. The method of Claim 14, further comprising generating, based on the visual feedback, another visual feedback different from the visual feedback using another golf swing different from the golf swing.

16. The method of Claim 1, wherein the method further comprises reapplying the powder-like substance to the golf training surface prior to performing a next golf swing.

17. A method of preparing a golf training surface comprising: providing a powder-like substance configured to temporarily mark a golf training surface without permanently staining the golf training surface; applying the powder-like substance to the golf training surface such that the powder-like substance is configured to be movable by a physical contact with a golf club; and performing a golf swing on the golf training surface using the golf club, such that the golf club contacts the golf training surface and moves at least some of the powder-like substance from its original location on the golf training surface; wherein the movement of at least some of the powder-like substance from the golf-training surface generates a visual feedback indicative of a swing characteristic associated with the golf swing.

18. The method of Claim 17, wherein the golf training surface comprises artificial turf.

19. The method of Claim 17, wherein the powder-like substance is configured to adhere to the golf training surface.

20. The method of Claim 19, wherein the powder-like substance is configured to adhere to the golf training surface with a strength that prevents the powder-like substance from being moved by the force of winds up to 30 mph.

21. The method of Claim 17, wherein the powder-like substance is configured to be removable from the golf training surface using water.

22. The method of Claim 17, wherein the visual feedback is generated immediately after the golf swing.

23. The method of Claim 17, wherein the visual feedback indicates a swing path of the golf swing.

24. The method of Claim 17, wherein the visual feedback indicates an impact zone of the golf club with the golf training surface.

25. The method of Claim 17, wherein the visual feedback indicates an angle of attack of the golf swing.

26. The method of Claim 17, wherein the visual feedback indicates a club face angle of the golf club during an impact with the golf training surface.

27. The method of Claim 17, wherein the visual feedback indicates a level of follow through of the golf swing.

28. The method of Claim 17, further comprising observing the visual feedback.

29. The method of Claim 28, further comprising generating, based on the visual feedback, another visual feedback different from the visual feedback using another golf swing different from the golf swing.

30. The method of Claim 17, wherein the method further comprises reapplying the powder-like substance to the golf training surface prior to performing a next golf swing.

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