Study on the Influence of Elastic Compression Pants Elasticity and Movement Speed on Human Joint Protection

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Influence significance of individual differences on the gait cycle

Movement Speed	Influence significance	Elastic pants	Non-elastic pants
5km/h	H(K)	11.231	4.231
	Value P	0.005*	0.141
8km/h	H(K)	14.665	14.416
	Value P	0.000*	0.000*
11km/h	H(K)	2.897	13.786
	Value P	0.403	0.000*

Body shape parameters of subjects (n=3)

Subjects	HT/(cm)	WT/(kg)	WC/(cm)	HC/(cm)	TC/(cm)	KC/e(cm)	AC/(cm)	BMI
S1	163.1	47.8	64.0	88.0	53.0	35.4	24.3	17.99
S2	164.0	49.2	68.0	89.0	56.0	36.0	25.1	18.29
S3	162.6	47.5	64.5	87.6	53.5	35.0	24.5	17.96
Mean	163.0	48.2	65.5	88.2	54.2	35.5	24.6	18.08
SD	(0.6)	(0.8)	(4.75)	(0.5)	(1.7)	(0.3)	(0.2)	(0.35)

Rigid body and corresponding names of the marker point

Corresponding part	Marker point name
Hip joint	HP (hip point)
Knee joint (lateral and interior)	KP (knee point), KL (knee lateral), KI (knee interior),
Ankle (lateral and interior)	AL (ankle lateral), AI (ankle interior),

Influence significance of individual differences on AKJ

Movement speed	Influence significance	Elastic pants	Non-elastic pants
5km/h	H(K)	25.525	16.423
	Value P	0.000*	0.007*
8km/h	H(K)	12.798	20.121
	Value P	0.020*	0.000*
11km/h	H(K)	0.163	26.085.
	Value P	0.949	0.000*

Experimental compression pants

	CP1	CP2	CP3	CS
Fabric	85% nylon15% spandex	80% nylon20% spandex	76% nylon24% spandex	100%cotton
Knee circumference /cm	30	28	26	40
Applied percentage of fabric stretch/%	Wale: 63.5Course: 76.3	Wale: 78.1Course: 81.6	Wale: 84.2Course: 86.8	Wale: 46.3Course: 50.5

Significance test of movement speed and fabric elasticity

Evaluation parameter	Average gait cycle	Max-AKJ	Min-AKJ
Elastic pants	0.000*	0.000*	0.000*
Non-elastic pants	0.000*	0.000*	0.000*
Speed (5km/h)	0.000*	0.009*	0.000*
Speed (8km/h)	0.008*	0.000*	0.026*
Speed (11km/h)	0.000*	0.018*	0.000*