Effects of Bikram Yoga Clothes on EEG Beta Spectrum

Hyojeong Lee; Yejin Lee

doi:10.2478/ftee-2022-0051

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Effects of Bikram Yoga Clothes on EEG Beta Spectrum

Fibres & Textiles in Eastern Europe

Volume 30 (2022): Issue 6 (December 2022)

By: Hyojeong Lee and Yejin Lee

Open Access

|Dec 2022

Figures & Tables

Clothing pressure measurement at chest (for the top) and at the hip (for the pants)

pressure distribution of tight fitting experimental clothes using a 3D virtual try-on program CLO 3D ver.5.2

Attachment of channel electrodes for EEG measurement

ANOVA measurement results for the pressure between the experimental yoga wears

The standardised design properties of yoga clothing, pressure and subjective preference

EEG measurement of RLB waves

Yoga wear	Brain area		Mean	Mean differences
					G3	Fp1	Pre- yoga	0.078	−0.004	−5.031^**
						Fp1	Post- yoga	0.074	−0.004	−5.031^**
Fz	Pre-	0.077	−0.003	−2.358^*
Fz	Post-	0.074	−0.003	−2.358^*
P7	Pre-	0.079	0.006	2.524^*
P7	Post-	0.085	0.006	2.524^*

Physical traits and clothing pressure of yoga wear materials

	Code	Fiber content (%)	Density (loop/5.0 cm)		Thickness (mm)	Qmax (W/cm²)	Absorption (mm/10 minutes)		Clothing pressure (kPa)
	Code	Fiber content (%)	Wale	Course	Thickness (mm)	Qmax (W/cm²)	Wale	Course
Tops	U1	Nylon 84, Polyurethane 16	124	308.8	0.82	0.125	53	81	0.59
Tops	U2	Viscose rayon 92, Polyurethane 8	96.4	121.6	0.78	0.108	29	48	0.44
Pants	B1	Nylon 72, Polyurethane 29	133.8	287.4	0.80	0.105	0	0	0.53
	B2	Nylon 92, Polyurethane 8	87.6	141.6	0.89	0.091	47	56	0.89

EEG measurements of RMB waves

Yoga wear	Brainarea	Mean		Mean differences	t
G1	Fp1	Pre-yoga	0.110	0.005	2.436^*
	Fp1	Post-yoga	0.115	0.005	2.436^*
	Fz	Pre-	0.109	0.007	2.659^*
	Fz	Post-	0.116	0.007	2.659^*
	F8	Pre-	0.116	0.006	2.798^*
	F8	Post-	0.122	0.006	2.798^*
	C3	Pre-	0.118	0.006	2.929^*
	C3	Post-	0.124	0.006	2.929^*
G3	P3	Pre-	0.118	0.007	2.625^*
	P3	Post-	0.124	0.007	2.625^*
	O1	Pre-	0.110	0.007	2.590^*
	O1	Post-	0.117	0.007	2.590^*
	C3	Pre-	0.114	0.011	4.198^**
	C3	Post-	0.125	0.011	4.198^**
	P7	Pre-	0.117	0.008	4.322^**
	P7	Post-	0.125	0.008	4.322^**
G4	F4	Pre-	0.120	0.004	4.663^**
	F4	Post-	0.124	0.004	4.663^**
	F7	Pre-	0.119	0.004	3.871^**
	F7	Post-	0.123	0.004	3.871^**
	C3	Pre-	0.119	0.005	3.894^**
	C3	Post-	0.124	0.005	3.894^**
	Fz	Pre-	0.116	0.006	5.030^**
	Fz	Post-	0.122	0.006	5.030^**
	Cz	Pre-	0.115	0.004	3.271^*
	Cz	Post-	0.119	0.004	3.271^*

EEG measurements of RHB waves

Yoga wear	Brain area	Mean		Mean differences	t
G1	F4	Pre-yoga	0.186	−0.007	−2.499^*
	F4	Post-yoga	0.179	−0.007	−2.499^*
	F8	Pre-	0.190	0.007	7.289^***
	F8	Post-	0.183	0.007	7.289^***
	Cz	Pre-	0.115	−0.004	3.271^*
	Cz	Post-	0.119	−0.004	3.271^*
G2	Cz	Pre-	0.187	−0.004	−3.271^*
G2	Cz	Post-	0.183	−0.004	−3.271^*
G3	Cz	Pre-	0.183	−0.004	−3.271^*
G3	Cz	Post-	0.176	−0.004	−3.271^*
G4	Fp1	Pre-	0.178	0.008	3.829^**
	Fp1	Post-	0.175	0.008	3.829^**
	Fp2	Pre-	0.170	0.008	3.068^*
	Fp2	Post-	0.172	0.008	3.068^*
	O1	Pre-	0.178	0.007	3.991^**
	O1	Post-	0.171	0.007	3.991^**
	O2	Pre-	0.177	0.005	2.801^*
	O2	Post-	0.172	0.005	2.801^*
	F7	Pre-	0.182	0.006	2.891^*
	F7	Post-	0.175	0.006	2.891^*
	F8	Pre-	0.184	0.009	3.113^*
	F8	Post-	0.176	0.009	3.113^*
	P8	Pre-	0.184	0.009	3.198^*
	P8	Post-	0.174	0.009	3.198^*
	Cz	Pre-	0.115	−0.004	−3.271^*
	Cz	Post-	0.119	−0.004	−3.271^*

Subjective preference concerning coolness and comfort

Environment	Item	Clothing	Rank 1 (n)	Rank 2 (n)	Rank 3 (n)	Rank 4 (n)	Total points
Standard	Coolness	G1	0	2	4	2	32
		G2	3	0	2	3	38
		G3	3	2	0	3	37
		G4	2	4	2	0	40
	Comfort	G1	1	0	2	5	29
		G2	0	1	4	3	30
		G3	1	6	1	0	40
		G4	6	1	1	0	45
Hot Chamber	Coolness	G1	1	1	4	2	33
		G2	1	1	2	4	31
		G3	3	3	1	1	40
		G4	3	3	1	1	40
	Comfort	G1	1	1	3	3	32
		G2	0	3	2	3	32
		G3	3	2	3	0	40
		G4	4	2	0	2	40

References

Authors

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Articles in this issue

DOI: https://doi.org/10.2478/ftee-2022-0051 | Journal eISSN: 2300-7354 | Journal ISSN: 1230-3666

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Language: English

Page range: 45 - 54

Published on: Dec 30, 2022

Published by: Łukasiewicz Research Network, Institute of Biopolymers and Chemical Fibres

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

EEG,

Related subjects:

Business and economics,

Business management,

Business informatics,

Process management,

Industrial chemistry,

Cellulose, paper and textiles,

Polymer science and technology,

Materials sciences,

Biomaterials and natural materials

© 2022 Hyojeong Lee, Yejin Lee, published by Łukasiewicz Research Network, Institute of Biopolymers and Chemical Fibres
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 30 (2022): Issue 6 (December 2022)

Effects of Bikram Yoga Clothes on EEG Beta Spectrum

Figures & Tables

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

EEG measurement of RLB waves

Physical traits and clothing pressure of yoga wear materials

EEG measurements of RMB waves

EEG measurements of RHB waves

Subjective preference concerning coolness and comfort

Paradigm

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