Acute influences of tennis services on cardiac output and brachial hemodynamics in young male tennis players

Shoya Mori, Keisei Kosaki*, Ryohei Tagata, Kayoko Kon, Risa Yasuda, Natsumi Nishitani, Tomoko Ishizu, Seiji Maeda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Objectives: This study aimed to examine the influences of tennis service exercise on cardiac output (CO) and bilateral brachial hemodynamics in young tennis players. Design: Experimental study. Methods: Ten young male tennis players (21 ± 2 years of age) participated. Each performed 100 tennis services without a return shot for experimental tennis exercise. Cardiovascular hemodynamic variables, including bilateral brachial blood flow (BF), shear rate (SR), blood pressure, and CO, were collected under three conditions: 1) baseline, 2) immediately after the tennis services (post), and 3) 1 h after the tennis services (1-hour). The positive incremental area under the curve (iAUC) for brachial hemodynamic variables was calculated. Results: Immediately after the 100 tennis services, CO, brachial BF, SR, and brachial vascular conductance (VC) in the dominant and non-dominant arms increased (p < 0.05). At the 1-hour condition, CO returned to baseline; the brachial BF, SR, and VC in the non-dominant arm returned to baseline levels, whereas the same variables in the dominant arm remained increased. The iAUC for brachial BF and VC in the dominant arm was higher than that in the non-dominant arm. Furthermore, the brachial BF/CO ratio index in the dominant arm increased at the post and 1-hour conditions, whereas that in the non-dominant arm was unchanged. Conclusions: Tennis service exercise specifically increases brachial BF, SR, and VC in the dominant arm, independent of increased CO. Our findings contribute to unveiling the underlying mechanisms of brachial artery adaptations in tennis players.

Original languageEnglish
Pages (from-to)973-978
Number of pages6
JournalJournal of Science and Medicine in Sport
Issue number12
Publication statusPublished - 2022 Dec


  • Athlete artery
  • Blood flow
  • Brachial artery
  • Cardiac output
  • Tennis
  • Tennis service

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation


Dive into the research topics of 'Acute influences of tennis services on cardiac output and brachial hemodynamics in young male tennis players'. Together they form a unique fingerprint.

Cite this