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. 2001 Jun 1;533(Pt 2):367–377. doi: 10.1111/j.1469-7793.2001.0367a.x

Table 1.

Comparison of twitch and tetanus parameters in γ+/+ and γ−/− muscles

EDL (n = 8) Soleus (n = 7)
γ+/+ S.E.M. γ−/− S.E.M. γ+/+ S.E.M. γ−/− S.E.M.
Twitch
 Tension (mN)  23.27  1.46  20.38  2.34   8.98  0.70   8.48  0.53
 tpeak (ms)  18.16  1.10  16.80  1.04  51.21  4.73  58.43  6.66
 t1/2 (ms)  26.13  1.43  24.63  1.85  98.83 22.85 121.38 32.66
Tetanus
 Tension (mN) 179.89 13.43 154.57 15.01  96.54 12.78  78.29  8.49
 t1/2,contract (ms)  56.95  2.86  50.98  2.43 122.10  7.02 116.43  2.79
 t1/2,relax (ms)  36.93  0.56  38.61  0.74 147.47  7.23 164.61 16.51
Twitch/tetanus  0.131 0.005  0.131 0.006  0.103 0.037  0.112 0.006

For each genotype, 8 experiments were carried out on EDL and 7 experiments on soleus muscle. For single twitches values are: peak tension; tpeak, time to peak; and t1/2, half-time of relaxation. For tetani values are: maximal tension; t1/2,contract, time to half-maximal contraction within the 350 ms stimulation period; and t1/2,relax, time to half-relaxation after the end of stimulation.