Navigation Links
Tennis Elbow is Not Caused Due to Improperly Sized Tennis Racket Grip

Clinicians attending to patients suffering from tennis elbow ask them to alter the grip size of their racket to ease muscle fatigue.// A new study evaluating the muscle firing patterns in the forearm demonstrates that grip size has no bearing on the development of tendonitis.

Researchers apparently have "gotten a grip" on the relationship between the development of tennis elbow (tendonitis) and the size of the grip on the racket a player uses.

A grip that is either too big or too small for the player's hand is not a factor in whether or not a player may develop tennis elbow, according to a study published in the December issue of The American Journal of Sports Medicine. "An optimal grip size may influence the force with which a player hits the ball, but variations in grip size are unlikely to be contributing factors in overuse injuries such as tennis elbow," concludes George F. Hatch III, MD, currently of the Department of Orthopaedic Surgery, University of Southern California Keck School of Medicine, Los Angeles, and colleagues. (Dr. Hatch conducted the study while in training at the Kerlan-Jobe Orthopaedic Clinic in Los Angeles.)

"Clinicians who treat patients with tennis elbow often tell them to try a different size grip in order to alleviate muscle fatigue," says Dr. Hatch. "Our study demonstrates that those recommendations have no scientific basis. Therefore, it is reasonable to recommend whatever grip size feels most comfortable for them."

Tennis elbow (lateral epicondylitis) is the most common upper extremity complaint among recreational players, accounting for 75% to 85% of elbow injuries. Researchers believe it results from repetitive impacts between the ball and racket coupled with poor wrist stability especially during the backhand swing. The backhand stroke seems to be the culprit because it results in overexertion and micro-tearing within two primary muscles inside the forearm.

Hatch and coau thors at Kerlan-Jobe Orthopaedic Clinic studied 16 NCAA Division I and II tennis players (10 men, 6 women) with no prior history of elbow problems. Twelve players were right-handed; four left-handed. All players were proficient at using a one-handed backhand. Players' "recommended" grip size was determined using an industry standard: measuring the distance from the bottom lengthwise crease in the palm to the tip of the ring finger with a ruler.

The researchers inserted electrodes into five different muscles in each player's dominant arm to measure the firing pattern of their muscles (electromyogram, EMG). After a warm-up period, players then performed three single-handed backhand strokes using identical model rackets with three different grip sizes: the "recommended" grip size, a "small" grip size (1/4 inch smaller than recommended), and a "large" grip size (1/4 inch larger than recommended). One-quarter inch size variations were chosen because most commercially available adult-sized rackets have grip sizes ranging from 4 inches to 4 5/8 inches. A ball machine set at a constant speed and angle provided consistent ball delivery. Each player's strokes were captured on high speed video which was then synchronized with the corresponding EMG.

Of the five forearm muscles studied, none showed significant variations in firing patterns during three phases of the backhand stroke: accelerated forward motion of the racket, ball impact, and early follow-through. Close attention was paid to two specific muscles, the extensor carpi radialis brevis (ECRB) and the extensor digitorium communis (EDC), which are located beside each other in the forearm and originate from the bony prominence on the outside of the elbow. Overuse, microtrauma, and failed healing in both of these muscles can result in tendonitis. Yet larger and smaller grip sizes did not affect the activity of these two muscles, the authors found.

"Based on our data, we recommend recre ational tennis players use the currently accepted grip size measurement technique as a starting point in when picking a grip size," says Dr. Hatch. "However, the player should feel free to increase or decrease the size of the grip based upon what feels most comfortable. Previous studies have shown that improper form is one of the biggest risk factors for the development of tendonitis."


Related medicine news :

1. Tennis gives protection against heart disease lifelong
2. Tennis elbow not new among cricketers, say experts
3. Steroids Ineffective In Tennis Elbow
4. Watch Out! Sideswipe Elbow Injuries On The Rise
5. Steroids Ineffective In Tennis Elbow
6. Antibiotics Dangerous for Diarrhoea in Children Caused by E.Coli
7. Albendazole Effective In Reducing Seizures Caused By A Common Parasite
8. Birth Defects Caused By Drugs Used For Epilepsy
9. Alzheimers Disease Caused By Insulin Increase
10. Obesity Can Be Caused By Consumption Of Energy Drinks
11. Crohns Disease Could Be Caused By Gaps In The Intestinal Barrier
Post Your Comments:

(Date:11/25/2015)... ... November 25, 2015 , ... “While riding the bus, I ... Bronx, N.Y. “I thought there had to be a convenient and comfortable way to ... The PROTECTOR enables disabled individuals to safely travel during cold or inclement weather. In ...
(Date:11/25/2015)... , ... November 25, 2015 , ... ... (PHA) announces the nation’s Periwinkle Pioneers, individuals and groups responsible for advancing care ... disease. The Periwinkle Pioneers, nominated by the public, will receive special recognition throughout ...
(Date:11/25/2015)... ... November 25, 2015 , ... ... philanthropic seniors, is resulting in a way for homeless people to have a ... have launched a new initiative whereby they are repurposing plastic bags into sleeping ...
(Date:11/25/2015)... ... November 25, 2015 , ... Since its launch in 2012, ... adult stem cell therapies to patients with chronic degenerative medical conditions. Now, the ... Registered Trademark (RTM). , Organizations are required to hold a registered trademark in ...
(Date:11/24/2015)... ... November 25, 2015 , ... Genesis Chiropractic Software ... software creates an agreement between the practice owner and the patient that automatically ... notification, and projections. Click here to learn more. , ...
Breaking Medicine News(10 mins):
(Date:11/24/2015)... FRANCISCO , Nov. 24, 2015  Thanks to ... Dignity Health St. Mary,s Medical Center,s Sister Diane Grassilli ... breast imaging capabilities in San Francisco ... an anonymous friend, stepped forward with a gift of ... for Breast Digital Mammography with Tomosynthesis and Whole Breast ...
(Date:11/24/2015)... Colo. , Nov. 24, 2015  Array ... that its Chief Executive Officer, Ron Squarer ... Healthcare Conference in New York.  The public is ... webcast on the Array BioPharma website.Event:Piper Jaffray Annual ... , Wednesday, December 2, 2015Time:1:30 p.m. Eastern Time ...
(Date:11/24/2015)... HOUSTON, TX and VANCOUVER, Nov. 24, 2015 /PRNewswire/ ... EPI; NASDAQ: EPIX ) announced today that the ... clinical study of EPI-506 as a treatment for metastatic ... States and Canada.  --> ... --> In the Phase 1/2 clinical trial, ...
Breaking Medicine Technology: