Table 2

Neuromuscular parameters recorded during brief explosive maximal plantar flexions prior to (pre) and following (post, 24 and 48 h) match-play tennis in COOL and HOT conditions

NeuromuscularAssessment time point
ParametersConditionPrePost24 h48 h
MVC torque (Nm)COOL83.5±11.975.8±10.3*80.4±11.283.0±14.3
HOT**81.1±9.470.0±15.7*75.1±13.475.3±9.8
Peak RTD (Nm/s)COOL372±67372±73381±82353±83
HOT330±65324±64359±107380±106
RMSMAX (mV)COOL0.227±0.0700.239±0.0860.238±0.1000.245±0.095
HOT0.223±0.0840.214±0.0750.248±0.0850.232±0.088
M-wave (mV)COOL7.1±2.66.8±2.37.7±1.77.7±2.1
HOT7.2±2.47.3±1.87.7±1.87.3±2.3
RMSMAX/M-wave (au)COOL0.034±0.0090.036±0.0110.032±0.0130.033±0.012
HOT0.032±0.0120.030±0.0080.033±0.0110.033±0.012
  • Values are expressed as means±SD.*p<0.05, significantly different from pre.

  • †p<0.05, significantly different from COOL.

  • MVC torque, maximal voluntary contraction torque; RMSMAX, M-wave and RMSMAX/M-wave represent the average of root mean square, maximal M-waves and normalised electromyogram activities of soleus and gastrocnemius lateralis muscles; Peak RTD, peak rate of torque development.