Changes in angular momentum during the golf swing and their association with club head speed

2019 ◽  
Vol 20 (1) ◽  
pp. 42-52
Author(s):  
Yoka Izumoto ◽  
Toshiyuki Kurihara ◽  
Takahiko Sato ◽  
Sumiaki Maeo ◽  
Takashi Sugiyama ◽  
...  
Proceedings ◽  
2018 ◽  
Vol 2 (6) ◽  
pp. 241
Author(s):  
Kazuki Furukawa ◽  
Nobutaka Tsujiuchi ◽  
Akihito Ito ◽  
Kenta Matsumoto ◽  
Masahiko Ueda ◽  
...  
Keyword(s):  

2014 ◽  
Vol 72 ◽  
pp. 144-149 ◽  
Author(s):  
Andrew Morrison ◽  
Denise McGrath ◽  
Eric Wallace
Keyword(s):  

2021 ◽  
Author(s):  
Conor P. O’Brien

Golf participation has increased significantly over the past 50 years. Injury rates have mirrored this increase with amateur and elite golfers suffering a similar injury incidence to rugby players. The upper limb is the second most common anatomical site of injury in this population. Wrist injury and specifically the ulnar side of the leading wrist is the most prevalent. Leading wrist injuries affect the tendons, fibrocartilage, bones and neural structures that are located on the ulnar side of the wrist and hand as well as the soft tissue aponeurosis and bony and ligamentous canals that traverse the wrist joint. The most commonly injured lateral wrist structure is the Extensor Carpi Ulnaris tendon. This is particularly liable to injury due to the forces placed on it during the golf swing. Other structures on the medial side of the leading wrist associated with golf related injury and pathology include Triangular Fibro-cartilage, the hamate bone, the bony canals through which the nerves travel, as well as the flexor aponeurosis and Flexor Carpi Ulnaris tendon. Risk injury to the medial aspect of the leading wrist is increased by the newer golfing theories and techniques which endeavour to create increase golf club head speeds by storing greater energy by a phenomenon called “lag”. Lag results in greater speed as the club head releases at impact but results in injury to the medial wrist anatomical structures. Swing biomechanics, and their alteration and augmentation are a major factor in medial wrist injury. Diagnosis of these pathologies requires careful history and examination, as well as the use of radiology and electrodiagnostic medicine to confirm the pathology and degree. Treatment is targeted to the specific disability. Classical treatments are mostly employed and usually involve rest and anti-inflammatory treatments. Newer therapies such as Platelet Rich Plasma injection and Deep Oscillation therapy have proven beneficial. Splinting is often employed on return to play. Early diagnosis and cessation of the offending activity often allays the need for surgery. The rhyme that “minutes to diagnosis means weeks to recovery” is particularly apt for medial wrist golf injuries. Surgery will be required in long standing or chronic cases. Return to play, unlike many sports injuries, will require careful golf biomechanical assessment and alteration in swing dynamics. The objective of this chapter is to identify how the new biomechanical manipulation of the wrist and specifically the leading wrist has resulted in increased injuries to this anatomical structure. The type of injury, diagnosis and treatment is discussed in detail. Club head speed is generated through a combination of improved golf club equipment, golf payer fitness and manipulation of the golf club by the left wrist resulting in increased golf club lag and torque which all contribute to wrist injuries.


1996 ◽  
Vol 12 (4) ◽  
pp. 449-469 ◽  
Author(s):  
Steven M. Nesbit ◽  
Terry A. Hartzell ◽  
John C. Nalevanko ◽  
Ryan M. Starr ◽  
Mathew G. White ◽  
...  

This paper discusses the inertia tensors of iron golf club heads and their influence on the swing of a golfer and the behavior of the golf club. Inertia tensors of various five-iron club head configurations were determined using solid modeling and were compared with equivalent solid ellipsoids. A golf swing and club behavior analysis was performed using a computer model comprised of a 3D parametric flexible model of a golf club driven with data from a recorded golf swing, and an impact function. The impact results were verified experimentally. The analysis without impact determined that altering club head inertia had a minor effect on the torque required to swing the club and the deflections of the club head at the time of impact. The analysis with an eccentric impact found that altering club head inertia had a major effect on transmitted forces and torques and a moderate effect on deflection of the club head.


2011 ◽  
Vol 2011 (0) ◽  
pp. 140-145
Author(s):  
Hiroki HASHIMOTO ◽  
Mutsuko NOZAWA ◽  
Shinsuke YOSHIOKA ◽  
Mitsuo OTSUKA ◽  
Tadao ISAKA

2014 ◽  
Vol 14 (1) ◽  
pp. 54-63 ◽  
Author(s):  
J. Sinclair ◽  
G. Currigan ◽  
D.J. Fewtrell ◽  
P.J. Taylor
Keyword(s):  

Author(s):  
Sérgio Marta ◽  
João Rocha Vaz ◽  
Luís Silva ◽  
Maria António Castro ◽  
Pedro Pezarat Correia

This chapter reports the golf swing EMG studies using amplitude, timing parameters and approaches to neuromuscular patterns recognition through EMG. The golf swing is a dynamic multi-joint movement. During each swing phase different activation levels occur, the combination of each muscle in amplitude provides an increased club head speed for the ball to travel to the hole. The timing when the maximum peak of each muscle occurs can be an important factor to understand the injury related mechanics and to prescribe strength programs. Most muscle studies describe their maximum activation level during the forward swing and acceleration phases, providing a controlled antigravity movement and acceleration of the club. The initial contraction time corresponds to the onset that can be used to describe the organization of the neuromuscular patterns during a task. This time parameter was used in golf to relate injuries to skilled or less skilled golfers. The way to retrieve this time parameter may be reached through new approaches but no gold standard algorithm definition has been found yet. To better understand the neuromuscular patterns new algorithms based on the dynamical systems theory are now used.


Author(s):  
Koon Kiat Teu ◽  
Wangdo Kim ◽  
Franz Konstantin Fuss ◽  
John Tan

This paper presents a different approach of recording and analysing the swing. The method involved utilizing electrogoniometer (biometrics, UK) to obtain the joint angles throughout the motion and by using Dual Euler velocity analysis, the velocity of the measured segment can be estimated. The results are then processed to ascertain individual segmental contribution to the final club head velocity.


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