Table 2a. Mean values±s.e.m. of PCr, ATP, γ-ATP, and Pi content, as well as calculated pH in skeletal muscle.
| Muscle | Baseline | Decrease | 0 minute | 30 minutes | P-value (effect of time) | P-value (group effect) |
|---|---|---|---|---|---|---|
| PCr | ||||||
| Low weight | 2272.7±106.6 | 2270.7±116.3 | 2170.0±96.6 | 2211.3±103.5 | ||
| Normal weight | 2424.7±110.4 | 2460.0±125.4 | 2395.3±89.8 | 2346.7±89.0 | 0.044* | 0.239 |
| Obese | 2208.0±95.8 | 2178.0±79.5 | 2153.3±84.2 | 2106.7±87.9 | ||
| ATP | ||||||
| Low weight | 714.7±28.3 | 734.2±33.0 | 698.8±26.0 | 707.6±28.3 | ||
| Normal weight | 789.5±37.0 | 778.0±36.1 | 771.0±27.2 | 760.0±28.1 | 0.221 | 0.039* |
| Obese | 665.±28.3 | 669.4±32.3 | 653.6±27.3 | 662.7±40.3 | ||
| γ-ATP | ||||||
| Low weight | 728.2±30.4 | 784.3±47.0 | 718.5±32.3 | 758.8±41.2 | ||
| Normal weight | 807.5±52.8 | 784.0±39.0 | 783.4±27.3 | 766.6±33.4 | 0.380 | 0.017* |
| Obese | 653.5±34.0 | 652.7±53.8 | 621.4±38.3 | 638.9±43.2 | ||
| Pi | ||||||
| Low weight | 412.5±17.1 | 439.6±15.7 | 437.3±19.2 | 427.0±24.5 | ||
| Normal weight | 382.3±19.5 | 421.1±20.8 | 413.1±20.7 | 394.7±18.8 | 0.011* | 0.051 |
| Obese | 355.2±20.3 | 383.0±18.6 | 380.1±19.2 | 363.9±19.7 | ||
| pH | ||||||
| Low weight | 6.97±0.01 | 6.96±0.01 | 6.96±0.01 | 6.96±0.01 | ||
| Normal weight | 6.96±0.01 | 6.97±0.01 | 6.96±0.01 | 6.97±0.01 | 0.392 | 0.417 |
| Obese | 6.94±0.01 | 6.96±0.00 | 6.96±0.00 | 0.95±0.01 | ||
ATP, adenosine triphosphate; PCr, phosphocreatine; Pi, inorganic phosphate. Asterisks mark significant analyses of variance effects (*P<0.05).