The credibility of Instagram-based information on strength and conditioning in tennis


  • Ivo Manzoni Faculty of Kinesiology University of Zagreb
  • Dario Novak Faculty of Kinesiology University of Zagreb



tennis, credibility of information, strength and conditioning, Instagram


Background: Social networks are an important and widely used resource for training information for many people. However, the content on these platforms regarding the recommendations for strength and conditioning in relation to tennis has not yet been fully evaluated. We investigated the credibility of Instagram-based information on the strength and conditioning development specifically in relation to tennis. Methods: Three experts with more then ten years of scientific and professional experience in the field of tennis (39.6±7.4 years of age) evaluated the credibility of the Instagram-based content of five selected accounts based on three aspects: information based on scientific knowledge, the practical applicability of information and the demonstration quality of the presented exercises. We calculated the means (AS) and standard deviations (SD) for each criterion. Results: The results of this research indicate a very low level of credibility in relation to the data published on social networks. The information is inaccurate and poorly verified, and as such is not a reliable source and selection for the purpose of strength and conditioning progress in tennis. Conclusion: Only validated training approaches and exercises that leverage players’ fitness abilities might serve as an avenue for strength and conditioning promotion in tennis.


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Author Biography

Dario Novak, Faculty of Kinesiology University of Zagreb



Black, N.M., Sullivan, S.J., Mani, R. (2018). A biopsychosocial understanding of lower back pain: content analysis of online information. European Journal of Pain, 22(4):728-744.

Butler, L., Foster, N.E. (2003). Back pain online: a cross-sectional survey of the quality of web-based information on low back pain. Spine, 15; 28(4):395- 401.

Chesney, T. (2006). An empirical examination of Wikipedia's credibility. First Monday.

Dean, B. (2020). Social network usage & growth statistics: How many people use social media in 2021. Published August, 12. 2020.

Fernandez-Fernandez, J., Sanz, D., Sarabia, J.M., Mova, M. (2015). The effects of sport-specific drills training or high-intensity interval training in youth tennis players. International Journal of Sport Physiology and Performance, 12(1):90-98.

Ferreira, G., Traeger, A. C., Machado, G., O'Keeffe, M., Maher, C.G. (2019). Credibility, accuracy, and comprehensiveness of internet-based information about low back pain: a systematic review. Journal of medical Internet research, 7; 21(5). doi: 10.2196/13357.

Haguentauer, M, Fargier, P., Legreneur, P., Dufour, A.B., Cogerino, G., Begon, M, Monteil, K.M. (2005). short-term effects of using verbal instructions and demonstration at the beginning of learning a complex skill in figure skating. Perceptual Motor Skills, 100, 171-191.

Hendrick, P.A., Ahmed, O.H., Bankier, S.S., Chan, T.J., Crawford, S.A., Ryder, C.R., et al. (2012). Acute low back pain information online: an evaluation of quality, content accuracy and readability of related websites. Manual Therapy, 17(4):318-324.

Johnson, T. J., Kaye, B. K. (2004). Wag the blog: how reliance on traditional media and the Internet influence credibility perceptions of weblogs among blog users. Journalism and Mass Communication Quarterly, 81(3); 622–642.

Kaplan, A. M., Haenlein, M. (2010). Users of the world, unite! The challenges and opportunities of social media. Business Horizons, 53(1);59-68.

Li, L., Irvin, E., Guzmán, J., Bombardier, C. (2001). Surfing for back pain patients: the nature and quality of back pain information on the Internet. Spine, 26(5):545-557.

Warren, J., Farrow, D. (2013). The Importance of a Sport-Specific Stimulus for Training Agility. Strength and Conditioning Journal, 35 (2):39-43.



How to Cite

Manzoni, I., & Novak, D. . (2022). The credibility of Instagram-based information on strength and conditioning in tennis. ITF Coaching & Sport Science Review, 30(86), 18–21.