Table I.

Raw average maximum and minimum principal strain values in the supraspinatus tendon

	Joint Position	Load	Intact	33% Tear	66% Tear	100% Tear
Average Maximum Principal Strain	0° rotation	30N	3.58 ± 1.41	4.47 ± 1.56	4.88 ± 2.33	5.12 ± 2.89
		60N	5.30 ± 1.70	5.97 ± 1.80	6.38 ± 2.47	7.29 ± 3.71
		90N	6.36 ± 1.82	7.01 ± 1.87	7.48 ± 2.61	8.71 ± 4.18
	30° internal	30N	5.22 ± 4.09	5.14 ± 4.24	5.28 ± 4.78	5.94 ± 5.75
		60N	7.77 ± 5.19	7.23 ± 5.27	7.50 ± 5.69	8.10 ± 6.70
		90N	9.43 ± 5.64	8.59 ± 5.74	8.88 ± 6.10	9.47 ± 7.11
	30° external	30N	4.75 ± 2.56	5.58 ± 3.21	5.54 ± 3.27	5.65 ± 5.33
		60N	6.51 ± 3.75	7.64 ± 4.34	7.55 ± 4.62	8.29 ± 6.29
		90N	7.79 ± 4.43	9.02 ± 4.89	8.81 ± 5.49	10.63 ± 7.21
Average Minimum Principal Strain	0° rotation	30N	−2.49 ± 2.36	−3.59 ± 3.38	−3.61 ± 2.61	−4.64 ± 2.73
		60N	−4.26 ± 3.41	−5.92 ± 4.61	−5.94 ± 3.68	−7.49 ± 4.12
		90N	−5.59 ± 3.98	−7.48 ± 5.10	−7.68 ± 4.11	−9.38 ± 4.80
	30° internal	30N	−4.20 ± 3.03	−4.29 ± 2.50	−4.03 ± 2.48	−4.18 ± 1.92
		60N	−7.92 ± 3.24	−7.63 ± 3.18	−7.25 ± 2.93	−7.66 ± 2.52
		90N	−11.21 ± 3.15	−10.27 ± 3.22	−9.71 ± 3.01	−10.14 ± 3.07
	30° external	30N	−2.85 ± 2.21	−3.08 ± 1.46	−2.68 ± 1.95	−3.92 ± 2.73
		60N	−4.11 ± 3.10	−4.61 ± 2.17	−4.08 ± 3.01	−6.47 ± 3.95
		90N	−4.84 ± 3.73	−5.52 ± 2.86	−4.87 ± 3.79	−8.34 ± 4.64