Fig 7. Measurements of TA muscle CSA at the step-level section located 5.5 mm deep from the anterior edge of the muscle at 2 weeks and 4 weeks.

At 2 weeks the CSA of the TA muscles in the no treatment (gel only) and OA treatment groups was decreased to 63–93% of the CSA of the TA muscle from an age and gender matched normal rat at the same step-level. At 4 weeks the CSA of the TA muscles in the no treatment (gel only) and OA treatment groups was similarly decreased to 60–90% of the CSA of the TA muscle from an age and gender matched normal rat at the same step-level.