| TNF | High | Low | Levels of significance | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CSAF | Large | Middle | Small | Large | Middle | Small | ||||
| Group | HL(n=9) | HM(n=33) | HS(n=64) | LL(n=39) | LM(n=61) | LS(n=33) | TNF | CSAF | TNF×CSAF | |
| Muscle fiber number (×1000) | ||||||||||
| Total fiber number | 1203b(46.1)A | 1303b(24.3) | 1381a(17.3) | 900.3d(23.2) | 984.9c(18.4) | 1041c(24.5) | *** | *** | NS | |
| Type I number | 129a(13.1) | 117a(6.9) | 108ab(4.9) | 91c(6.6) | 96bc(5.2) | 94bc(7.0) | *** | NS | NS | |
| Type IIA number | 173a(16.6) | 143ab(8.8) | 128bc(6.2) | 104d(8.4) | 114cd(6.6) | 98d(8.8) | *** | * | NS | |
| Type IIB number | 905c(45.3) | 1043b(23.9) | 1146a(17.0) | 705c(22.8) | 775d(18.1) | 849c(24.0) | *** | *** | NS | |
| Muscle fiber number percentage (%) | ||||||||||
| Type I fiber | 10.58a(1.29) | 9.03ab(0.68) | 7.90b(0.48) | 10.62a(0.65) | 9.84ab(0.52) | 9.24ab(0.68) | NS | * | NS | |
| Type IIA fiber | 14.45a(1.45) | 10.78bc(0.77) | 9.06c(0.55) | 11.51ab(0.73) | 11.58ab(0.58) | 9.28c(0.77) | NS | *** | NS | |
| Type IIB fiber | 75.30d(1.81) | 80.23bc(0.95) | 83.05a(0.68) | 77.90cd(0.91) | 78.62cd(0.72) | 81.47ab(0.96) | NS | *** | NS | |
| Cross sectional area of muscle fiber (um2) | ||||||||||
| Mean area | 5083b(113.8) | 4314c(60.2) | 3520e(42.8) | 5390a(57.4) | 4371c(45.5) | 3701d(60.4) | ** | *** | NS | |
| Type I fiber area | 3594a(191.4) | 3176ab(101.2) | 2678c(71.9) | 3587a(96.5) | 3143b(76.5) | 2838c(101.6) | NS | *** | NS | |
| Type IIA fiber area | 3102a(169.5) | 2718b(89.6) | 2111c(63.7) | 3237a(85.4) | 2625b(67.7) | 2222c(89.9) | NS | *** | NS | |
| Type IIB fiber area | 5709a(155.6) | 4658b(82.2) | 3758d(58.4) | 6000a(78.4) | 4798b(62.1) | 3975c(82.6) | ** | *** | NS | |
| Muscle fiber area percentage (%) | ||||||||||
| Type I fiber | 7.45(0.86) | 6.58(0.45) | 5.95(0.32) | 6.90(0.43) | 6.96(0.34) | 6.90(0.46) | NS | NS | NS | |
| Type IIA fiber | 8.62a(0.99) | 6.84ab(0.52) | 5.46c(0.37) | 6.88ab(0.50) | 6.90ab(0.40) | 5.69b(0.53) | NS | *** | NS | |
| Type IIB fiber | 83.92c(1.30) | 86.58bc(0.69) | 88.59a(0.49) | 86.22bc(0.66) | 86.14bc(0.52) | 87.41ab(0.69) | NS | *** | NS | |