Table 2.

HR-LPL activity in skeletal muscle after unilateral hindlimb inactivity

	Soleus (% of control)	Red quadriceps (% of control)	Diaphragm (% of control)
Ambulatory control	100 ± 12	100 ± 16	100 ± 15
Contralateral leg	85 ± 9	108 ± 15	—
12 h after tenotomy to Achilles tendon‡	6 ± 2*†	20 ± 4*†	80 ± 18

^‡There was tenotomy of the soleus tendon but no tenotomy of the red quadriceps (RQ) tendon. RQ was obtained from the most deep and red region of the three vastus muscles. The foot of the one leg with tenotomy was not weight-bearing and thus the RQ muscle was unloaded in that leg, and this RQ muscle provided and oppurtunity to study unilateral unloading. Tenotomy was performed on one hindlimb by cutting the distal soleus tendon (n = 6).

^*P < 0.01 between unloaded and control muscles,

^†P < 0.01 between paired unloaded and loaded contralateral muscles in the same rats.