Table 2.

Concepts of knee injury-related fear generated from co-occurrence networks and key words in context concordance.

Concepts	Words	Frequency (%)
Quick response to the opponent	defence	25 (31.7%)
	opponent
	stop
	quick
	cutting
	response
	stop
	hold
Ball-related play	ball	19 (24.1%)
	chase
	catch
	shoot
	rebound
	dash
	motion
	hold
Jump-landing	jump	17 (21.4%)
	landing
	single-leg
	heading
Contact	against person	11 (13.9%)
	contact
	knee
	play
	movement
Athletic movement	block	8 (10.1%)
	side
	step
	drive
	kick
Loss of balance	balance	6 (7.6%)
	fall
	loss
	direction
	foot

There were 11 (13.9%) responses that did not correspond to the concept.

Frequency includes duplicate responses, so the total exceeds 100%.