Table 5.

Tendon tap and TVRs from biceps and triceps during four assessment sessions in nine participants with SCI

	First Ax		Second Ax		Third Ax		Fourth Ax
P	Biceps	Triceps	Biceps	Triceps	Biceps	Triceps	Biceps	Triceps
1	TTR: √	TTR: √	TTR: √	TTR: √	TTR: √	TTR: √	TTR: √	TTR: √
	TVR: √	TVR: √	TVR: √	TVR: √	TVR: √	TVR: NR	TVR: √	TVR: NR
2	TTR: √	TTR: √	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR
	TVR: √	TVR: √	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR
3	TTR: MLR	TTR: MLR	Not assessed		Not assessed		Not assessed
	TVR: MLR	TVR: MLR
4	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR
	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR
5	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR
	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR
6	TTR: NR	TTR: √	TTR: NR	TTR: √	TTR: NR TVR: NR	TTR: √	TTR: few Rs	TTR: √
	TVR: NR	TVR: √	TVR: NR	TVR: √		TVR: √	TVR: √	TVR: √
7	TTR: NR TVR: NR	TTR: NR TVR: NR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR
			TVR: NR	TVR: NR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: NR
8	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	TTR: MLR	Not assessed
	TVR: NR	TVR: NR	TVR: MLR	TVR: MLR	TVR: MLR	TVR: MLR
9	TTR: MLR	TTR: MLR	Not assessed		Not assessed		Not assessed
	TVR: MLR	TVR: MLR

The TTR and TVR responses are two markers that can be used to investigate the existence of supraspinal influences over the motor circuitry of the examined muscle. As it can be seen, participant 2, had normal TTR and TVR in both biceps and triceps, but he lost these responses over time. MLR indicates the loss of inhibitory supraspinal influences on these muscles.

P: participant; TTR: tendon-tap response; TVR: tonic vibratory response; MLR: multi-level response; R: response; NR: no response; √: normal response.