Prevention and Treatment of Throwing-Arm Injuries

Duda, Marty

doi:10.1080/00913847.1985.11708821

Cited by 13 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…34 These two muscles undergo high decelerative eccentric muscle contractions to preserve healthy joint movement. 35 Adequate strength and range of motion (ROM) in the rotator cuff muscles are essential in preventing Reference Time (s) [ overhead overuse injuries as they are vital in stabilising and movement throughout the extreme ROM experienced during tennis strokes-specifically the service motion. 29 36 The speed of the serve or throwing motion depends partly on a rapid and forceful concentric internal rotation in the acceleration phase of the serve.…”

Section: Strengthmentioning

confidence: 99%

“…29 36 The speed of the serve or throwing motion depends partly on a rapid and forceful concentric internal rotation in the acceleration phase of the serve. 35 The eccentric phase of training may specifically affect the decelerative phase, which may determine the trajectory and velocity components of performance. 37 Both eccentric and concentric isokinetic shoulder training have resulted in significant power gains, particularly at fast functional velocities, as well as large increases in the explosiveness of the rotator cuff muscles.…”

Section: Strengthmentioning

confidence: 99%

See 1 more Smart Citation

Applied physiology of tennis performance

2006

View full text Add to dashboard Cite

Competitive tennis play requires a combination of the major physiological variables; however, the specifics of these variables have yet to be determined appropriately. General strength and flexibility training have been suggested as being beneficial for performance and injury prevention, yet specific guidelines are lacking. This paper provides a review of specific studies that relate to competitive tennis, and highlights the need for tennis-specific training as opposed to generalised physical training. It identifies specific studies that support the premise that tennis has physiological requirements which need to be understood when designing training and research programmes.

show abstract

Section: Strengthmentioning

confidence: 99%

Section: Strengthmentioning

confidence: 99%

Applied physiology of tennis performance

2006

View full text Add to dashboard Cite

show abstract

“…Overuse injuries of the shoulder joint may arise following accumulation of soft tissue microtrauma associated with overhead throwing motions (Akuthota, Chou, Drake, Nadler, & Toledo, 2004), and injuries of the shoulder joint are influenced by the types of throwing and level of muscle activity (Cook, Gray, Savinar-Nogue, & Medeiros, 1987;David et al, 2000;Fleisig, Barrentine, Zheng, Escamilla, & Andrews, 1999). Previous studies agree that many throwing injuries occur during the followthrough phase in which horizontal extensor and external rotator muscles are contracting eccentrically to decelerate the limb after the ball has been released (Duda, 1985;Kelly, Backus, Warren, & Williems, 2002;Page et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Electromyography activities for shoulder muscles over various movements on different torque changes

Park

Nho

Chang

et al. 2011

European Journal of Sport Science

View full text Add to dashboard Cite

The aim of the present study was to investigate the patterns of shoulder muscle activation and joint torques during maximal effort eccentric contractions with shoulder extension, abduction, and diagonal movements on the isokinetic device. Participants in this investigation were nine men and four women with no history of shoulder injury or disorders. They all participated in overhead sports at least three days a week, and volunteered to participate in this study for shoulder isokinetic muscle strength testing. They performed eccentric muscle action with shoulder flexion, abduction, and diagonal movements at velocities of 60 rad×s (1 and 180 rad × s (1 , which was followed alternately by passive shoulder flexion, abduction and diagonal movement at a velocity of 30 rad × s (1 , and total range of motion was standardised to 908. Electromyography (EMG) and torque values were calculated to every 108, except for the start and end 58 during each task. During each test, the isokinetic force output and muscle activation were synchronised. EMG data were normalised by percentage of maximum voluntary isometric contraction (%MVIC). EMG signals were recorded by surface EMG from the anterior deltoid (AD), middle deltoid (MD), posterior deltoid (PD), upper trapezius (UT), middle trapezius (MT), and biceps brachii (BB) muscles during this test. All of the muscle patterns were significantly decreased at the last compared with the initial part during eccentric shoulder flexion movement, except for the BB muscle (P B 0.05). AD and BB muscles played a similar role when peak torque was generated under load during eccentric muscle action with varying shoulder movements. PD and UT muscle activities were significantly lower than the other muscle activities during eccentric contraction with shoulder flexion and abduction movements, and the PD and UT muscles played a significant role in conjunction with MD and MT muscles in varying degrees during eccentric contraction with shoulder diagonal movements at 180 rad×s (1 (P B 0.05). Our study demonstrated that MT muscle activity was greatly influenced when torque values showed a peak moment under load during maximum effort, eccentric contraction with shoulder abduction and diagonal movements. However, the MD, PD, UT, and MT muscle activities had no great influence when peak torque was generated under load during eccentric muscle action with shoulder diagonal movement at high velocity. The present study suggested that varying eccentric muscle activity patterns may be needed to investigate proper training and functional contributions of upper extremity muscles to stabilisation of the shoulder joint when peak torque was generated under load.

show abstract