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Table 1 Potentiated low- and high-frequency doublets of leg muscles’ values in the runners and control participants before (Pre) and after (Post) the mountain ultra-marathon

From: The increase in hydric volume is associated to contractile impairment in the calf after the world’s most extreme mountain ultra-marathon

 

Runners (n = 11)

Control subjects (n = 8)

Pre

Post

Pre

Post

Knee extensor (KE)

 Potentiated low-frequency doublets-PS10 (N)

143 ± 11

119 ± 15**

140 ± 8

172 ± 10†

 Potentiated high-frequency doublets-PS100 (N)

141 ± 8

119 ± 11**

157 ± 7

159 ± 11†

 PS10/PS100

1.01 ± 0.03

0.98 ± 0.07

0.90 ± 0.07

1.08 ± 0.02

Plantar flexor (PF)

 Potentiated low-frequency doublets-PS10 (Nm)

47 ± 4

36 ± 3**

44 ± 5

38 ± 6**

 Potentiated high-frequency doublets-PS100 (Nm)

46 ± 4

36 ± 2*

44 ± 9

38 ± 7**

 PS10/PS100

1.03 ± 0.04

0.99 ± 0.02

1.01 ± 0.04

1.00 ± 0.05

  1. Values are expressed as the mean ± SEM
  2. PS10/PS100 low- to high-frequency doublet peak force ratio
  3. * p < 0.05, ** p < 0.01 for differences between Post- and Pre-values
  4. † p < 0.05 for differences between runners and control subjects
  5. Differences between Post- and Pre-values
  6. KE PS10 in control: p = 0.0580
  7. KE PS100 in control: p = 0.7781
  8. PF PS10 in control: p = 0.0085
  9. PF PS100 in control: p = 0.0064
  10. KE PS10 in runners: p = 0.0029
  11. KE PS100 in runners: p = 0.0058
  12. PF PS10 in runners: p = 0.0030
  13. PF PS100 in runners: p = 0.0202
  14. Interactions group/time
  15. PF PS10: p = 0.1433/PF PS100: p = 0.4666
  16. KE PS10: p = 0.0004/KE PS100: p = 0.0406
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Extreme Physiology & Medicine

ISSN: 2046-7648

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