Comparison of shock transmission and forearm electromyography between experienced and recreational tennis players during backhand strokes

Shun Hwa Wei, Jinn Yen Chiang, Tzyy-Yuang Shiang, Hsiao Yun Chang

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Objective: To test the hypothesis that recreational tennis players transmit more shock impact from the racket to the elbow joint than experienced tennis players during the backhand stroke. Also, to test whether recreational tennis players used higher electromyographic (EMG) activities in common wrist extensor and flexor around epicondylar region at follow-through phase. Design: A repeated-measure, cross-sectional study. Setting: National College of Physical Education and Sports at Taipei, Taiwan. Participants: Twenty-four male tennis players with no abnormal forearm musculoskeletal injury participated in the study. According to performance level, subjects were categorized into 2 groups: experienced and recreational. Main Outcome Measurements: Impact transmission and wrist extensor-flexor EMG for backhand acceleration, impact, and follow-through phases were recorded for each player. An independent t test with a significance level of 0.05 was used to examine mean differences of shock impact and EMG between the 2 test groups. One-way ANOVA associated with Tukey multiple comparisons was used to identify differences among different impact locations and EMG phases. Results: Experienced athletes reduced the racket impact to the elbow joint by 89.2%, but recreational players reduced it by only 61.8%. The largest EMG differences were found in the follow-through phase (P < 0.05). Experienced athletes showed that their extensor and flexor EMGs were at submaximal level for follow-through phase, whereas recreational players maintained their flexor and extensor EMGs at either supramaximal or maximal level. Conclusions: Our results support the hypothesis that recreational players transmit more shock impact from the racket to the elbow joint and use larger wrist flexor and extensor EMG activities at follow-through phase of the backhand stroke. Follow-through control is proposed as a critical factor for reduction of shock transmission. Clinicians or trainers should instruct beginners to quickly release their grip tightness after ball-to-racket impact to reduce shock impact transmission to the wrist and elbow.

Original languageEnglish
Pages (from-to)129-135
Number of pages7
JournalClinical Journal of Sport Medicine
Volume16
Issue number2
DOIs
Publication statusPublished - 2006 Mar 1

Fingerprint

Tennis
Electromyography
Forearm
Shock
Wrist
Elbow Joint
Stroke
Athletes
Forearm Injuries
Racquet Sports
Physical Education and Training
Hand Strength
Elbow
Taiwan
Sports
Analysis of Variance
Cross-Sectional Studies

Keywords

  • Electromyography
  • Lateral epicondylitis
  • Tennis
  • Vibration

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Comparison of shock transmission and forearm electromyography between experienced and recreational tennis players during backhand strokes. / Wei, Shun Hwa; Chiang, Jinn Yen; Shiang, Tzyy-Yuang; Chang, Hsiao Yun.

In: Clinical Journal of Sport Medicine, Vol. 16, No. 2, 01.03.2006, p. 129-135.

Research output: Contribution to journalArticle

@article{028ed7188818442d983bbe8e5cf87fca,
title = "Comparison of shock transmission and forearm electromyography between experienced and recreational tennis players during backhand strokes",
abstract = "Objective: To test the hypothesis that recreational tennis players transmit more shock impact from the racket to the elbow joint than experienced tennis players during the backhand stroke. Also, to test whether recreational tennis players used higher electromyographic (EMG) activities in common wrist extensor and flexor around epicondylar region at follow-through phase. Design: A repeated-measure, cross-sectional study. Setting: National College of Physical Education and Sports at Taipei, Taiwan. Participants: Twenty-four male tennis players with no abnormal forearm musculoskeletal injury participated in the study. According to performance level, subjects were categorized into 2 groups: experienced and recreational. Main Outcome Measurements: Impact transmission and wrist extensor-flexor EMG for backhand acceleration, impact, and follow-through phases were recorded for each player. An independent t test with a significance level of 0.05 was used to examine mean differences of shock impact and EMG between the 2 test groups. One-way ANOVA associated with Tukey multiple comparisons was used to identify differences among different impact locations and EMG phases. Results: Experienced athletes reduced the racket impact to the elbow joint by 89.2{\%}, but recreational players reduced it by only 61.8{\%}. The largest EMG differences were found in the follow-through phase (P < 0.05). Experienced athletes showed that their extensor and flexor EMGs were at submaximal level for follow-through phase, whereas recreational players maintained their flexor and extensor EMGs at either supramaximal or maximal level. Conclusions: Our results support the hypothesis that recreational players transmit more shock impact from the racket to the elbow joint and use larger wrist flexor and extensor EMG activities at follow-through phase of the backhand stroke. Follow-through control is proposed as a critical factor for reduction of shock transmission. Clinicians or trainers should instruct beginners to quickly release their grip tightness after ball-to-racket impact to reduce shock impact transmission to the wrist and elbow.",
keywords = "Electromyography, Lateral epicondylitis, Tennis, Vibration",
author = "Wei, {Shun Hwa} and Chiang, {Jinn Yen} and Tzyy-Yuang Shiang and Chang, {Hsiao Yun}",
year = "2006",
month = "3",
day = "1",
doi = "10.1097/00042752-200603000-00008",
language = "English",
volume = "16",
pages = "129--135",
journal = "Clinical Journal of Sport Medicine",
issn = "1050-642X",
publisher = "Lippincott Williams and Wilkins",
number = "2",

}

TY - JOUR

T1 - Comparison of shock transmission and forearm electromyography between experienced and recreational tennis players during backhand strokes

AU - Wei, Shun Hwa

AU - Chiang, Jinn Yen

AU - Shiang, Tzyy-Yuang

AU - Chang, Hsiao Yun

PY - 2006/3/1

Y1 - 2006/3/1

N2 - Objective: To test the hypothesis that recreational tennis players transmit more shock impact from the racket to the elbow joint than experienced tennis players during the backhand stroke. Also, to test whether recreational tennis players used higher electromyographic (EMG) activities in common wrist extensor and flexor around epicondylar region at follow-through phase. Design: A repeated-measure, cross-sectional study. Setting: National College of Physical Education and Sports at Taipei, Taiwan. Participants: Twenty-four male tennis players with no abnormal forearm musculoskeletal injury participated in the study. According to performance level, subjects were categorized into 2 groups: experienced and recreational. Main Outcome Measurements: Impact transmission and wrist extensor-flexor EMG for backhand acceleration, impact, and follow-through phases were recorded for each player. An independent t test with a significance level of 0.05 was used to examine mean differences of shock impact and EMG between the 2 test groups. One-way ANOVA associated with Tukey multiple comparisons was used to identify differences among different impact locations and EMG phases. Results: Experienced athletes reduced the racket impact to the elbow joint by 89.2%, but recreational players reduced it by only 61.8%. The largest EMG differences were found in the follow-through phase (P < 0.05). Experienced athletes showed that their extensor and flexor EMGs were at submaximal level for follow-through phase, whereas recreational players maintained their flexor and extensor EMGs at either supramaximal or maximal level. Conclusions: Our results support the hypothesis that recreational players transmit more shock impact from the racket to the elbow joint and use larger wrist flexor and extensor EMG activities at follow-through phase of the backhand stroke. Follow-through control is proposed as a critical factor for reduction of shock transmission. Clinicians or trainers should instruct beginners to quickly release their grip tightness after ball-to-racket impact to reduce shock impact transmission to the wrist and elbow.

AB - Objective: To test the hypothesis that recreational tennis players transmit more shock impact from the racket to the elbow joint than experienced tennis players during the backhand stroke. Also, to test whether recreational tennis players used higher electromyographic (EMG) activities in common wrist extensor and flexor around epicondylar region at follow-through phase. Design: A repeated-measure, cross-sectional study. Setting: National College of Physical Education and Sports at Taipei, Taiwan. Participants: Twenty-four male tennis players with no abnormal forearm musculoskeletal injury participated in the study. According to performance level, subjects were categorized into 2 groups: experienced and recreational. Main Outcome Measurements: Impact transmission and wrist extensor-flexor EMG for backhand acceleration, impact, and follow-through phases were recorded for each player. An independent t test with a significance level of 0.05 was used to examine mean differences of shock impact and EMG between the 2 test groups. One-way ANOVA associated with Tukey multiple comparisons was used to identify differences among different impact locations and EMG phases. Results: Experienced athletes reduced the racket impact to the elbow joint by 89.2%, but recreational players reduced it by only 61.8%. The largest EMG differences were found in the follow-through phase (P < 0.05). Experienced athletes showed that their extensor and flexor EMGs were at submaximal level for follow-through phase, whereas recreational players maintained their flexor and extensor EMGs at either supramaximal or maximal level. Conclusions: Our results support the hypothesis that recreational players transmit more shock impact from the racket to the elbow joint and use larger wrist flexor and extensor EMG activities at follow-through phase of the backhand stroke. Follow-through control is proposed as a critical factor for reduction of shock transmission. Clinicians or trainers should instruct beginners to quickly release their grip tightness after ball-to-racket impact to reduce shock impact transmission to the wrist and elbow.

KW - Electromyography

KW - Lateral epicondylitis

KW - Tennis

KW - Vibration

UR - http://www.scopus.com/inward/record.url?scp=33646368155&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646368155&partnerID=8YFLogxK

U2 - 10.1097/00042752-200603000-00008

DO - 10.1097/00042752-200603000-00008

M3 - Article

C2 - 16603882

AN - SCOPUS:33646368155

VL - 16

SP - 129

EP - 135

JO - Clinical Journal of Sport Medicine

JF - Clinical Journal of Sport Medicine

SN - 1050-642X

IS - 2

ER -