Trunk and Shoulder Kinematic and Kinetic and Electromyographic Adaptations to Slope Increase during Motorized Treadmill Propulsion among Manual Wheelchair Users with a Spinal Cord Injury

Table 2

Description of self-selected comfortable propulsion speed, experimental tasks completed, and rate of perceived exertion.

Participants	Self-selected speed; (m/s)	Slopes					Rate of perceived exertion (/10)
		0°	2.7°	3.6°	4.8°	7.1°	0°	2.7°	3.6°	4.8°	7.1°
1	1.11	✓	✓	✓	✓	✓	0.9	7.4	5.5	8.1	9.5
2	1.65	✓	✓	✓	✓		0.1	2.2	0.3	0.3	—
3	1.05	✓	✓	✓	✓	✓	1.3	1.3	3.9	4.4	7.1
4	1.18	✓	✓	✓	✓	✓	0.8	1.7	3.7	4.8	7.8
5	1.20	✓	✓	✓	✓	✓	1.7	4.8	2.5	5.9	7.9
6	0.91	✓	✓	✓			3.0	6.3	7.7	—	—
7	1.48	✓	✓				0.9	9.7	—	—	—
8	1.16	✓	✓	✓			0	0.3	0.9	—	—
9	1.04	✓	✓	✓	✓		1.8	3.8	3.3	4.2	—
10	1.27	✓	✓	✓	✓	✓	0	0	0	0	0
11	1.39	✓	✓	✓	✓	✓	1.0	1.5	3.3	2.7	3.2
12	0.99	✓	✓	✓	✓		1.1	4.1	4.0	7.5	—
13	1.06	✓	✓				4.2	8.8	—	—	—
14	1.25	✓	✓	✓	✓	✓	1.2	5.2	6.7	6.4	8.5
15	1.03	✓	✓	✓	✓		0.0	0.6	1.9	3.6	—
16	1.07	✓	✓	✓	✓	✓	0.7	3.4	4.6	6.6	9.2
17	1.06	✓	✓	✓	✓	✓	0.7	6.2	2.6	6.5	8.9
18	1.11	✓	✓	✓	✓	✓	2.9	4.6	6.1	6.6	7.3
Mean	1.17	= 18	= 18	= 16	= 14	= 10	1.2	3.9	3.5	4.7	6.8
SD	0.18						1.1	2.9	2.2	2.5	3.0