Evaluation of Reliability of Tensiomyography Measurement

Jung-Hoon Chai; Bo-Kyeong Kim; Hyuk-Jae Choi; Sang-Won Bae

doi:10.5763/kjsm.2018.36.3.143

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Chai, Kim, Choi, and Bae: Evaluation of Reliability of Tensiomyography Measurement

Clinical Article

Korean J Sports Med 2018;36(3):143-148.

Published online: 17 January 2018

DOI: https://doi.org/10.5763/kjsm.2018.36.3.143

Evaluation of Reliability of Tensiomyography Measurement

Jung-Hoon Chai¹, Bo-Kyeong Kim², Hyuk-Jae Choi³, Sang-Won Bae⁴

¹Department of Pharmacology, Eulji University, Daejeon

²Department of Sport and Leisure Studies, Korea University, Sejong

³Department of Sports Medicine, Soonchunhyang University, Asan

⁴Global Teun Teun Hospital, Daejeon, Korea

Correspondence: Sang-Won Bae Global Teun Teun Hospital, 516 Gyejok-ro, Dong-gu, Daejeon 34542, Korea Tel: +82-42-220-2315, Fax: +82-42-226-0128 E-mail: yodeo@hanmail.net ∗This work was supported by the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea (NRF-2015S1A5B5A07041728).

Received 12 July 2018 Revised 8 August 2018 Accepted 13 August 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

This study is designed to evaluate the reliability for studies of tensiomyography (TMG). TMG can evaluate muscle function noninvasively and selectively.

Methods

We measured 12 male volunteers (age, 26.5±7.6 years; height, 175.3±4.7 cm; weight, 78.8±13.3 kg) in this study and measured TMG during three occasions over 3 consecutive days. None of the participants has had any history of neuromuscular disorders or muscle diseases. Vastus lateralis, vastus medialis (VM), rectus femoris (RF) in quadriceps and biceps femoris, semitendinosus in hamstrings muscles were measured. Coefficient of variation (CV%) and intraclass correlation coefficient (ICC) have been calculated about maximal displacement (Dm, mm) and contraction time (Tc, ms) which are main parameters.

Results

Most of the ICC of Dm were over 0.8 and the highest among the muscles except both VM. And, most ICC of Tc was lower than Dm except both BF (right, 18.31; left, 15.03). But, the ICC of Tc was lower than Dm except left RF (0.890) and VM (0.859).

Conclusion

This study has shown that the Dm is high levels of the ICC and CV(%) in thigh muscle except VM. In the future, we plan to establish the method of measurement more clearly for reducing the errors of measurements. The technique of correct palpation of measurable muscles using TMG devices is also necessary.

Keywords: Contraction time, Maximal displacement, Reliability, Tensiomyography

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Fig. 1.

Composition of tensiomyography (TMG).

Fig. 2.

Tensiomyography parameters. Tc: contraction time, Tr: relaxation time, Ts: sustain time, Td: delay time, Dm: maximal displacement.

Fig. 3.

Tensiomyography measurements in (A) quadriceps and (B) hamstring muscles.

Table 1.

Physical characteristics (n=12)

Sex	Age (yr)	Height (cm)	Weight (kg)
Male	26.5±7.6	175.3±4.7	78.8±13.3

Values are presented as mean±standard deviation.

Table 2.

Maximal displacement (mm)

Side	Muscle		1st	2nd	3rd	Mean±SD	CV(%)	ICC (95% CI)
Left	Hamstrings	BF	6.86±2.66	7.24±2.88	7.09±2.35	7.06±2.57	14.28	0.832 (0.625–0.943)
		ST	8.66±2.18	8.38±2.33	8.54±2.36	8.53±2.23	9.68	0.853 (0.665–0.951)
	Quadriceps	RF	6.58±2.83	6.65±2.95	6.28±3.01	6.50±2.85	14.57	0.897 (0.754–0.966)
		VL	5.99±2.18	5.89±2.93	6.14±2.38	6.00±2.45	9.47	0.922 (0.809–0.975)
		VM	7.93±1.50	8.21±1.66	7.95±1.77	8.03±1.61	8.3	0.702 (0.405–0.892)
Right	Hamstrings	BF	6.77±3.16	6.56±3.13	6.29±3.12	6.54±3.06	13.93	0.911 (0.785–0.971)
		ST	7.72±2.23	8.14±2.49	7.60±2.69	7.82±2.42	10.99	0.839 (0.638–0.946)
	Quadriceps	RF	7.28±2.30	7.14±2.32	6.48±2.47	6.97±2.32	13.72	0.816 (0.595–0.937)
		VL	5.87±1.56	5.98±1.83	5.67±2.04	5.84±1.77	9.93	0.856 (0.670–0.952)
		VM	7.50±1.53	7.35±1.57	7.14±1.70	7.33±1.56	8.69	0.776 (0.523–0.922)

Values are presented as mean±standard deviation (SD).

CV: coefficient of variation, ICC: intraclass correlation coefficient, CI: confidence interval, BF: biceps femoris, ST: semitendinosus, RF: rectus femoris, VL: vastus lateralis, VM: vastus medialis.

Table 3.

Contraction time (ms)

Side	Muscle	1st	2nd	3rd	Mean±SD	CV(%)	ICC (95% CI)
Left	Hamstrings BF	39.23±14.63	44.96±19.66	40.47±14.07	41.56±16.04	18.31	0.559 (0.214–0.827)
	ST	46.49±9.21	44.45±9.29	43.77±11.08	44.91±9.68	10.09	0.682 (0.376–0.883)
	Quadriceps RF	28.44±7.06	29.01±6.10	29.00±6.89	28.82±6.51	6.62	0.890 (0.741–0.964)
	VL	23.20±2.87	25.01±6.74	24.57±2.60	24.26±4.43	8.53	0.537 (0.187–0.816)
	VM	23.43±2.98	23.60±295	23.71±3.16	23.58±2.95	4.2	0.859 (0.678–0.953)
Right	Hamstrings BF	37.24±10.50	35.42±9.77	36.95±17.75	36.54±12.82	15.03	0.533 (0.183–0.814)
	ST	45.99±6.54	49.93±7.84	43.38±10.63	46.43±8.70	11.65	0.413 (0.055–0.749)
	Quadriceps RF	27.78±5.15	27.54±6.21	25.36±4.72	26.89±5.35	8.48	0.783 (0.537–0.926)
	VL	26.12±5.58	26.89±7.38	25.96±35.40	26.32±6.01	8.84	0.753 (0.485–0.913)
	VM	23.79±2.11	23.74±2.09	24.12±2.62	23.88±2.23	4.44	0.698 (0.400–0.890)

Values are presented as mean±standard deviation (SD).

CV: coefficient of variation, ICC: intraclass correlation coefficient, CI: confidence interval, BF: biceps femoris, ST: semitendinosus, RF: rectus femoris, VL: vastus lateralis, VM: vastus medialis.

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