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Phys. Ther. Korea 2020; 27(3): 163-170

Published online August 20, 2020

https://doi.org/10.12674/ptk.2020.27.3.163

© Korean Research Society of Physical Therapy

팔꿉관절 가쪽 부위에 적용한 다이아몬드 테이핑이 정상인의 공동폄근 힘줄의 두께와 악력, 손목 폄력에 미치는 영향

박소현1, 김선엽1,2

1대전대학교 대학원 물리치료학과, 2대전대학교 보건의료과학대학 물리치료학과

Effects of Diamond Taping Applied Around the Lateral Elbow on Common Extensor Tendon Thickness, Grip Strength and Wrist Extension Force in Healthy Subjects

So-hyun Park1 , PT, BHSc, Suhn-yeop Kim1,2 , PT, PhD

1Department of Physical Therapy, Graduate School, Daejeon University, 2Department of Physical Therapy, College of Health and Medical Science, Daejeon University, Daejeon, Korea

Correspondence to: Suhn-yeop Kim
E-mail: kimsy@dju.kr
https://orcid.org/0000-0002-0558-7125

Received: June 4, 2020; Revised: July 1, 2020; Accepted: July 16, 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0)which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background: The characteristics of lateral epicondylitis (LE) are muscle strength weakness and increased common extensor tendon (CET) thickness. Ultrasonography has recently been used to evaluate tendinopathy. Diamond taping (DT) is commonly used to manage patients with LE. However, no previous studies have investigated the effects of DT on CET thickness.
Objects: The aim of this study was to investigate the effects of DT applied around the lateral elbow on CET thickness, grip strength, and wrist extension force in healthy subjects.
Methods: The subjects were 26 adults (13 male) in their twenties. First, the CET thickness was measured at rest. The CET thickness was measured by using ultrasonography at two points. The subjects were then instructed to perform maximal grip activities or maximal wrist extension activities before and after DT around the lateral elbow. The DT technique was applied using non-elastic tape. While the subjects performed maximal grip activities, the investigator measured the maximum grip strength (MGS) and CET thickness. Likewise, while the subjects performed maximal wrist extension activities, the investigator measured the maximum wrist extension force (MWEF) and CET thickness.
Results: The MGS showed a statistically significant improvement after DT taping application in men (p < 0.05). The MWEF showed a statistically significant improvement after DT application in male (p < 0.01) and female (p < 0.05). When performing the activities, the CET thickness increased compared to that at rest. However, CET thickness didn’t show a statistically significant improvement before and after DT.
Conclusion: This study shows that DT applied around the lateral elbow is effective in improving MGS and MWEF. However, it does not affect CET thickness.

Keywords: Common extensor tendon, Diamond taping, Grip, Non-elastic, Ultrasonography, Wrist extension force

Article

ARTICLE

Phys. Ther. Korea 2020; 27(3): 163-170

Published online August 20, 2020 https://doi.org/10.12674/ptk.2020.27.3.163

Copyright © Korean Research Society of Physical Therapy.

팔꿉관절 가쪽 부위에 적용한 다이아몬드 테이핑이 정상인의 공동폄근 힘줄의 두께와 악력, 손목 폄력에 미치는 영향

박소현1, 김선엽1,2

1대전대학교 대학원 물리치료학과, 2대전대학교 보건의료과학대학 물리치료학과

Received: June 4, 2020; Revised: July 1, 2020; Accepted: July 16, 2020

Effects of Diamond Taping Applied Around the Lateral Elbow on Common Extensor Tendon Thickness, Grip Strength and Wrist Extension Force in Healthy Subjects

So-hyun Park1 , PT, BHSc, Suhn-yeop Kim1,2 , PT, PhD

1Department of Physical Therapy, Graduate School, Daejeon University, 2Department of Physical Therapy, College of Health and Medical Science, Daejeon University, Daejeon, Korea

Correspondence to:Suhn-yeop Kim
E-mail: kimsy@dju.kr
https://orcid.org/0000-0002-0558-7125

Received: June 4, 2020; Revised: July 1, 2020; Accepted: July 16, 2020

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0)which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background: The characteristics of lateral epicondylitis (LE) are muscle strength weakness and increased common extensor tendon (CET) thickness. Ultrasonography has recently been used to evaluate tendinopathy. Diamond taping (DT) is commonly used to manage patients with LE. However, no previous studies have investigated the effects of DT on CET thickness.
Objects: The aim of this study was to investigate the effects of DT applied around the lateral elbow on CET thickness, grip strength, and wrist extension force in healthy subjects.
Methods: The subjects were 26 adults (13 male) in their twenties. First, the CET thickness was measured at rest. The CET thickness was measured by using ultrasonography at two points. The subjects were then instructed to perform maximal grip activities or maximal wrist extension activities before and after DT around the lateral elbow. The DT technique was applied using non-elastic tape. While the subjects performed maximal grip activities, the investigator measured the maximum grip strength (MGS) and CET thickness. Likewise, while the subjects performed maximal wrist extension activities, the investigator measured the maximum wrist extension force (MWEF) and CET thickness.
Results: The MGS showed a statistically significant improvement after DT taping application in men (p < 0.05). The MWEF showed a statistically significant improvement after DT application in male (p < 0.01) and female (p < 0.05). When performing the activities, the CET thickness increased compared to that at rest. However, CET thickness didn’t show a statistically significant improvement before and after DT.
Conclusion: This study shows that DT applied around the lateral elbow is effective in improving MGS and MWEF. However, it does not affect CET thickness.

Keywords: Common extensor tendon, Diamond taping, Grip, Non-elastic, Ultrasonography, Wrist extension force

Fig 1.

Figure 1.Study design. CET, common extensor tendon; MGS, maximum grip strength; MWEF, maximum wrist extension force.
Physical Therapy Korea 2020; 27: 163-170https://doi.org/10.12674/ptk.2020.27.3.163

Fig 2.

Figure 2.Diamond taping.
Physical Therapy Korea 2020; 27: 163-170https://doi.org/10.12674/ptk.2020.27.3.163

Fig 3.

Figure 3.Common extensor tendon (CET) thickness measurement. (A) Photograph of arm and longitudinal probe position, (B) longitudinal sonogram illustrating 2 different point for measuring CET thickness.
Physical Therapy Korea 2020; 27: 163-170https://doi.org/10.12674/ptk.2020.27.3.163

Table 1 . General characteristics of subjects.

VariablesMale (n = 13)Female (n = 13)
Age (y)22.85 ± 3.2621.08 ± 1.04
Height (cm)177.46 ± 6.60161.31 ± 5.92
Weight (kg)73.62 ± 11.0756.69 ± 5.42
BMI (kg/m2)23.30 ± 2.7821.78 ± 1.59

Values are presented as mean ± standard deviation. BMI, body mass index.


Table 2 . Comparison of MGS and MWEF in pre and post Diamond taping (N = 26).

VariablesPre-tapingPost-tapingDifftF
MGSMale48.83 ± 9.7650.15 ± 9.86–1.31 ± 1.80–2.643*0.913
Female43.88 ± 6.8444.41 ± 7.88–0.53 ± 2.36–0.805
MWEFMale29.20 ± 5.6530.25 ± 5.341.05 ± 1.19–3.193**0.757
Female25.91 ± 4.5827.62 ± 3.41–1.71 ± 2.46–2.513*

Values are presented as mean (%weight) ± standard deviation. MGS, maximum grip strength; MWEF, maximum wrist extension force. *p < 0.05, **p < 0.01.


Table 3 . Comparison of CET thickness during exerting MGS in pre and post Diamond taping.

Measurement pointRestPre-tapingPost-tapingFF (G × T)
1 cmMale4.46 ± 0.785.39 ± 0.66a5.50 ± 0.78a19.800*0.346
Female4.08 ± 0.514.85 ± 0.61a5.04 ± 0.54a20.162*
PlateauMale4.47 ± 0.835.59 ± 0.75a5.60 ± 0.92a13.312*0.858
Female4.03 ± 0.514.80 ± 0.66a4.92 ± 0.79a46.644*

Values are presented as mean (mm) ± standard deviation. CET, common extensor tendon; MGS, maximum grip strength. aThere is a significant difference from rest, p < 0.01. *p < 0.01.


Table 4 . Comparison of CET thickness during exerting MWEF in pre and post Diamond taping.

Measurement pointRestPre-tapingPost-tapingFF (G × T)
1 cmMale4.46 ± 0.785.21 ± 0.49a5.13 ± 0.81a14.667*0.180
Female4.08 ± 0.514.69 ± 0.60a4.71 ± 0.74a7.785*
PlateauMale4.47 ± 0.835.33 ± 0.66a5.07 ± 0.82a9.700*0.387
Female4.03 ± 0.514.72 ± 0.74a4.69 ± 0.81a8.421

Values are presented as mean (mm) ± standard deviation. CET, common extensor tendon; MWEF, maximum wrist extension force. aThere is a significant difference from rest, p < 0.05. *p < 0.01.