Table 1
Details of the clothing samples
| Fiber content | Thickness (mm) | Air permeability (mm/s) | Rate of warp elongation under 1kg pulling force (%) | Style illustration | |
|---|---|---|---|---|---|
| Sample A | 50% cotton, 45% polyester, 5% spandex | 0.42 | 120 | 4.5 |
|
| Sample B | 100 % cotton | 0.38 | 146 | --- |
|
Table 2
Yoga practice protocol
| List of yogasanas postures | Starting to final (s) | Posture maintenance (s) | Rest between repetition (s) | Total duration (s) |
|---|---|---|---|---|
| Standing still | 5 | 15 | 30 | 150 |
| High lunge pose | 15 | 15 | 30 | 180 |
| Deep knee bending pose | 15 | 15 | 30 | 180 |
| Extended triangle pose | 15 | 15 | 30 | 180 |
| Forward bending pose | 15 | 15 | 30 | 180 |
| Twisted pose | 15 | 15 | 30 | 180 |
| Arm raised pose | 15 | 15 | 30 | 180 |
| Leg press pose | 15 | 15 | 30 | 180 |

Fig. 1
Clothing displacement measurement by Optotrak certus motion capture system. 1, Sensor control unit; 2, Computer for data recording and saving; 3, Subject; 4, Infrared-emitting diode; 5, NDI sensors
Table 3
Rating scales of the clothing subjective sensations
| Scale | Clothing fitness sensation | Clothing friction sensation | Clothing pulling sensation |
|---|---|---|---|
| 5 | Very tight | -- | -- |
| 4 | Tight | Very big friction | Very big pulling |
| 3 | Slightly tight | Big friction | Big pulling |
| 2 | Normal | Small friction | Small pulling |
| 1 | Loose | Slight friction | Slight pulling |
| 0 | Very loose (no feeling of clothing contact of pressure) | No friction | No pulling |

Fig. 2
Important factors of the yoga clothing chosen by the interviewees

Fig. 3
Clothing regions of importance chosen by the interviewees. a) upper body clothing; b) lower body clothing

Fig. 4
Clothing pressure at different postures. “*” means a significant difference at p<0.05 level.

Fig. 5
Change rate of clothing vertical displacement during the posture of high lunge pose

Fig. 6
Change rate of clothing vertical displacement in deep knee bend pose

Fig. 7
Change rate of clothing vertical displacement at the posture of extended triangle pose

Fig. 8
Ratings of clothing subjective sensation. “*” means a significant difference at p<0.05 level.