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Article: Adaptations of motoneuron properties to chronic compensatory muscle overload.
Full Text (publisher's website) ; Article Metadata ; Article Data (extracted) Krutki P; Hałuszka A; Mrówczyński W; Gardiner PF; Celichowski J J. Neurophysiol., 2015
Table 1.
Passive and threshold properties of motoneurones
| Slow | Fast | |||||
|---|---|---|---|---|---|---|
| Control | 5wkOL | 12wkOL | Control | 5wkOL | 12wkOL | |
| n | 16 | 14 | 15 | 41 | 35 | 35 |
| RMP, mV | 56.12 ± 6.74 | 56.25 ± 3.45 | 58.00 ± 5.62 | 61.64 ± 8.06 | 60.94 ± 7.89 | 58.24 ± 5.86 |
| AP amplitude, mV | 57.76 ± 5.91 | 58.21 ± 4.32 | 63.78 ± 11.64 | 68.21 ± 1.70 | 65.49 ± 10.21 | 65.20 ± 10.45 |
| AP duration, ms | 1.98 ± 0.34 | 1.99 ± 0.25 | 1.96 ± 0.33 | 1.70 ± 0.28 | 1.61 ± 0.23 | 1.60 ± 0.19 |
| AP rise time, ms | 1.02 ± 0.16 | 1.06 ± 0.14 | 1.04 ± 0.16 | 0.95 ± 0.14 | 0.86 ± 0.12** | 0.87 ± 0.11* |
| AHP amplitude, mV | 5.56 ± 2.62 | 4.86 ± 1.40 | 5.62 ± 2.23 | 2.93 ± 1.30 | 4.25 ± 1.63** | 3.90 ± 1.88* |
| AHP time-to-peak, ms | 10.80 ± 4.50 | 9.18 ± 0.92 | 10.44 ± 1.69 | 9.19 ± 2.58 | 7.94 ± 1.88 | 9.01 ± 2.24 |
| AHP-HDT, ms | 25.85 ± 5.08 | 26.81 ± 4.48 | 22.82 ± 2.71 | 12.35 ± 2.29 | 12.97 ± 2.01 | 13.01 ± 2.23 |
| IR, MΩ | 3.48 ± 1.46 | 3.06 ± 1.26 | 3.78 ± 1.60 | 1.94 ± 0.99 | 2.51 ± 1.39* | 2.43 ± 1.09* |
| Rheobase, nA | 2.68 ± 1.32 | 3.48 ± 1.58 | 2.93 ± 1.16 | 9.24 ± 4.57 | 6.62 ± 3.16* | 6.83 ± 4.22* |
| DT, nA | 8.82 ± 3.40 | 10.67 ± 3.22 | 9.10 ± 2.81 | 18.78 ± 7.29 | 16.98 ± 4.66 | 16.64 ± 6.71 |
| DT/rheobase | 3.40 ± 1.31 | 3.34 ± 1.02 | 3.20 ± 2.01 | 2.35 ± 1.07 | 2.68 ± 1.03 | 2.46 ± 1.57 |
Data are presented as means ± SD; n, no. of rats. 5wkOL, 5 wk overload; 12wkOL, 12 wk overload; RMP, resting membrane potential; AP, action potential; AHP, afterhyperpolarization; HDT, half-decay time; IR, input resistance; DT, doublet threshold. Comparisons between control, 5wkOL, and 12wkOL groups were made with the ANOVA Kruskal-Wallis test:
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↵* P < 0.05 and
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↵** P < 0.01.
Inferred neuron-electrophysiology data values
| Neuron Type | Neuron Description | Ephys Prop | Extracted Value | Standardized Value | Content Source |
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