{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T11:24:15Z","timestamp":1789125855496,"version":"build-2803163510"},"reference-count":36,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2024,9,21]],"date-time":"2024-09-21T00:00:00Z","timestamp":1726876800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["European Journal of Sport Science"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We examined the effect of prolonged tennis playing on lower limb muscles' activity during the execution of first and second tennis serves. Ten male competitive tennis players executed five first and second serves before (pretest) and after (posttest) a 3\u2010h tennis match. Surface electromyographic (EMG) activity of four lower limb muscles (<jats:italic>vastus lateralis<\/jats:italic>, <jats:italic>rectus femoris<\/jats:italic>, <jats:italic>gastrocnemius lateralis<\/jats:italic>, and <jats:italic>soleus<\/jats:italic> muscles) on each leg was recorded along with maximum ball velocity measured by a radar gun and peak vertical forces recorded by a force platform. For the <jats:italic>vastus lateralis<\/jats:italic>, <jats:italic>gastrocnemius lateralis<\/jats:italic>, and <jats:italic>soleus<\/jats:italic> muscles of the left leg as well as the <jats:italic>vastus lateralis<\/jats:italic> muscle of the right leg, EMG amplitude decreased from pre\u2010 to posttests (<jats:italic>p<\/jats:italic>\u00a0\u2264\u00a00.033). These reductions in the EMG signal were generally more pronounced in the first serve (i.e., ranging from \u221210% to \u221240%) compared to the second serve (0% to \u221225%). Maximum ball velocity for both first (159\u00a0\u00b1\u00a012 vs. 154\u00a0\u00b1\u00a012\u00a0km\/h) and second (126\u00a0\u00b1\u00a020 vs. 125\u00a0\u00b1\u00a015\u00a0km\/h) serves remained unchanged from pre\u2010 to posttests (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.638) Similarly, peak vertical forces did not differ between pretest and posttest for both first (1.78\u00a0\u00b1\u00a00.30 vs. 1.72\u00a0\u00b1\u00a00.29 body weight) and second (1.62\u00a0\u00b1\u00a00.25 vs. 1.75\u00a0\u00b1\u00a00.23 body weight) serves (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.730). In conclusion, a 3\u2010h tennis match led to decreased activation levels in various leg muscles during serves, particularly in first serves compared to second serves. Despite consistent maximum ball velocity and peak vertical forces, these reductions in EMG signals suggest that skilled tennis players may adopt compensatory strategies after prolonged play.<\/jats:p>","DOI":"10.1002\/ejsc.12199","type":"journal-article","created":{"date-parts":[[2024,9,21]],"date-time":"2024-09-21T15:39:12Z","timestamp":1726933152000},"page":"1472-1479","source":"Crossref","is-referenced-by-count":3,"title":["How does prolonged tennis playing affect lower limb muscles' activity during first and second tennis serves?"],"prefix":"10.1002","volume":"24","author":[{"given":"Clint","family":"Hansen","sequence":"first","affiliation":[{"name":"Department of Neurology University Hospital Schleswig\u2010Holstein  Kiel Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caroline","family":"Teulier","sequence":"additional","affiliation":[{"name":"CIAMS Universit\u00e9 Paris\u2010Saclay  Orsay France"},{"name":"CIAMS Universit\u00e9 d'Orl\u00e9ans  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