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Article

Phase-Specific Changes in Rate of Force Development and Muscle Morphology Throughout a Block Periodized Training Cycle in Weightlifters

1
Center of Excellence for Sport Science and Coach Education, Department of Sport, Exercise, Recreation, and Kinesiology, East Tennessee State University, Johnson, TN 37614, USA
2
Department of Coaching and Teaching Studies, West Virginia University, Morgantown, WV 26505, USA
*
Author to whom correspondence should be addressed.
Sports 2019, 7(6), 129; https://doi.org/10.3390/sports7060129
Submission received: 9 May 2019 / Revised: 22 May 2019 / Accepted: 24 May 2019 / Published: 28 May 2019

Abstract

The purpose of this study was to investigate the kinetic and morphological adaptations that occur during distinct phases of a block periodized training cycle in weightlifters. Athlete monitoring data from nine experienced collegiate weightlifters was used. Isometric mid-thigh pull (IMTP) and ultrasonography (US) results were compared to examine the effects of three specific phases of a training cycle leading up to a competition. During the high volume strength-endurance phase (SE) small depressions in rate of force development (RFD) but statistically significant (p ≤ 0.05) increases in vastus lateralis cross-sectional area (CSA), and body mass (BM) were observed. The lower volume higher intensity strength-power phase (SP) caused RFD to rebound above pre-training cycle values despite statistically significant reductions in CSA. Small to moderate increases only in the earlier RFD time bands (<150 ms) occurred during the peak/taper phase (PT) while CSA and BM were maintained. Changes in IMTP RFD and CSA from US reflected the expected adaptations of block periodized training phases. Changes in early (<100 ms) and late (≥150 ms) RFD time bands may not occur proportionally throughout different training phases. Small increases in RFD and CSA can be expected in well-trained weightlifters throughout a single block periodized training cycle.
Keywords: periodization; athlete monitoring; muscle; rate of force development; isometric mid-thigh pull periodization; athlete monitoring; muscle; rate of force development; isometric mid-thigh pull

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MDPI and ACS Style

Suarez, D.G.; Mizuguchi, S.; Hornsby, W.G.; Cunanan, A.J.; Marsh, D.J.; Stone, M.H. Phase-Specific Changes in Rate of Force Development and Muscle Morphology Throughout a Block Periodized Training Cycle in Weightlifters. Sports 2019, 7, 129. https://doi.org/10.3390/sports7060129

AMA Style

Suarez DG, Mizuguchi S, Hornsby WG, Cunanan AJ, Marsh DJ, Stone MH. Phase-Specific Changes in Rate of Force Development and Muscle Morphology Throughout a Block Periodized Training Cycle in Weightlifters. Sports. 2019; 7(6):129. https://doi.org/10.3390/sports7060129

Chicago/Turabian Style

Suarez, Dylan G., Satoshi Mizuguchi, William Guy Hornsby, Aaron J. Cunanan, Donald J. Marsh, and Michael H. Stone. 2019. "Phase-Specific Changes in Rate of Force Development and Muscle Morphology Throughout a Block Periodized Training Cycle in Weightlifters" Sports 7, no. 6: 129. https://doi.org/10.3390/sports7060129

APA Style

Suarez, D. G., Mizuguchi, S., Hornsby, W. G., Cunanan, A. J., Marsh, D. J., & Stone, M. H. (2019). Phase-Specific Changes in Rate of Force Development and Muscle Morphology Throughout a Block Periodized Training Cycle in Weightlifters. Sports, 7(6), 129. https://doi.org/10.3390/sports7060129

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