{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,29]],"date-time":"2026-03-29T10:33:58Z","timestamp":1774780438517,"version":"3.50.1"},"reference-count":36,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>Moran, J, Vali, N, Tallent, J, Howe, L, Clemente, FM, Chaabene, H, and Ramirez-Campillo, R. Evaluating the effects of consecutive phases of plyometric jump training on athletic performance in male soccer players: The effect of training frequency and volume manipulations. <jats:italic toggle=\"yes\">J Strength Cond Res<\/jats:italic> 38(6): 1082\u20131089, 2024\u2014This 14-week, 2-phase study aimed to determine the relative effects of 1 day or 2 days of volume-matched plyometric training on athletic performance (10- and 40-m sprints, change of direction [COD], and vertical jump [VJ]) in male soccer players (phase 1). The objective of phase 2 was to determine the relative effects of higher- and lower-volume plyometric training protocols in maintaining any previously attained increases in athletic performance from phase 1. A randomized parallel-group trial design was utilized. In phase 1, subjects (<jats:italic toggle=\"yes\">n<\/jats:italic> = 24; mean age: 19.5 \u00b1 1.2 years; mean height: 179.7 \u00b1 7.1 cm; mean weight: 69.8 \u00b1 6.9 kg) were randomly allocated to 1 of 2 groups to receive either 1 day or 2 days of volume- and intensity-matched plyometric training for a 7-week period. For the second 7-week period (phase 2), half of each group was randomized into either a lower-volume or higher-volume plyometric training group. In phase 1, both the 1-day group and the 2-day group attained comparably significant (<jats:italic toggle=\"yes\">p<\/jats:italic> &lt; 0.001) increases in performance in all fitness tests ranging from effect sizes (ESs) (<jats:italic toggle=\"yes\">d<\/jats:italic>) of 0.4 (95% confidence interval: 0.11 to 0.70) for 10-m sprint to 1.51 (0.42\u20132.60) for VJ. There were no significant differences between the performance increases in the 2 groups. In phase 2, neither group increased or decreased performance, maintaining all previously attained increases with only trivial ESs observed (\u22120.02 [\u22120.58 to 0.53] to 0.11 [\u22120.38 to 0.61]). Increases in 10- and 40-m sprint speed, COD speed, and VJ height can be achieved and maintained with as little as 1 plyometric training session per week. Sessions can include 120 jumps to induce increases of the reported magnitudes, with 60 jumps to maintain these increases thereafter, in male soccer players.<\/jats:p>","DOI":"10.1519\/jsc.0000000000004756","type":"journal-article","created":{"date-parts":[[2024,3,15]],"date-time":"2024-03-15T17:00:45Z","timestamp":1710522045000},"page":"1082-1089","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Evaluating the Effects of Consecutive Phases of Plyometric Jump Training on Athletic Performance in Male Soccer Players: The Effect of Training Frequency and Volume Manipulations"],"prefix":"10.1519","volume":"38","author":[{"given":"Jason","family":"Moran","sequence":"first","affiliation":[{"name":"School of Sport, Rehabilitation, and Exercise Sciences, University of Essex, Colchester, United Kingdom;"}]},{"given":"Norodin","family":"Vali","sequence":"additional","affiliation":[{"name":"Department of Exercise Physiology, Shahid Rajaee Teacher Training University, Tehran, Iran;"}]},{"given":"Jamie","family":"Tallent","sequence":"additional","affiliation":[{"name":"School of Sport, Rehabilitation, and Exercise Sciences, University of Essex, Colchester, United Kingdom;"},{"name":"Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia;"}]},{"given":"Louis","family":"Howe","sequence":"additional","affiliation":[{"name":"School of Sport, Rehabilitation, and Exercise Sciences, University of Essex, Colchester, United Kingdom;"}]},{"given":"Filipe Manuel","family":"Clemente","sequence":"additional","affiliation":[{"name":"Escola Superior Desporto e Lazer, Instituto Polit\u00e9cnico de Viana do Castelo, Viana do Castelo, Portugal;"},{"name":"Gdansk University of Physical Education and Sport, Gda\u0144sk, Poland;"},{"name":"Sport Physical Activity and Health Research & Innovation Center, Viana do Castelo, Portugal;"}]},{"given":"Helmi","family":"Chaabene","sequence":"additional","affiliation":[{"name":"Division of Training and Movement Sciences, Research Focus Cognition Sciences, University of Potsdam, Potsdam, Germany;"},{"name":"Higher Institute of Sports and Physical Education, Kef, University of Jendouba, Tunisia; and"}]},{"given":"Rodrigo","family":"Ramirez-Campillo","sequence":"additional","affiliation":[{"name":"Exercise and Rehabilitation Sciences Institute. 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