PMID- 32942648
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201020
IS  - 2075-4663 (Electronic)
IS  - 2075-4663 (Linking)
VI  - 8
IP  - 9
DP  - 2020 Sep 15
TI  - Effects of an Initial Muscle Strength Level on Sports Performance Changes in 
      Collegiate Soccer Players.
LID - 10.3390/sports8090127 [doi]
LID - 127
AB  - The purposes of this study were to investigate effects of partial block 
      periodized strength training on physical performance and to examine relationships 
      between initial muscle strength measured with isometric mid-thigh pull (IMTP) and 
      performance changes after 7 weeks of strength training. Seventeen collegiate male 
      soccer players participated. Initial muscle strength was determined using IMTP 
      while physical performance included 10 m and 20 m sprints and static vertical 
      jump with a polyvinyl chloride pipe (SJ0), 20 kg barbell (SJ20), and barbell 
      loaded to 40 kg bar (SJ40). Performance testing was performed at three points: 
      before first week (baseline), fourth week (T1), and seventh week (T2). 
      Statistically small to moderate changes were found from baseline to T2 in peak 
      power (PP; p < 0.001, ES = 0.49), net impulse (NI; p < 0.001, ES = 0.49), peak 
      velocity (PV; p < 0.001, ES = 0.62), allometrically scaled PP (PPa; p < 0.001, ES 
      = 0.62) in SJ20 and jump height (JH) in SJ40 (p < 0.001, ES = 0.36). Moderate to 
      large correlations were found between isometric peak force and the changes from 
      baseline to T2 in SJ20 PP (p = 0.04, r = -0.49), SJ20 PF (p = 0.03, r = -0.52), 
      PPa (p = 0.04, r = -0.50), and SJ20 allometrically scaled peak force (p = 0.04, r 
      = -0.49). Properly structured strength training maximizes task-specific physical 
      performance. Initial muscle strength negatively affects the magnitudes of 
      adaptations to physical performance.
FAU - Ishida, Ai
AU  - Ishida A
AD  - Center of Excellence for Sport Science and Coach Education, East Tennessee State 
      University, Johnson City, TN 37614, USA.
FAU - Rochau, Kyle
AU  - Rochau K
AD  - Center of Excellence for Sport Science and Coach Education, East Tennessee State 
      University, Johnson City, TN 37614, USA.
FAU - Findlay, Kyle P
AU  - Findlay KP
AUID- ORCID: 0000-0003-2478-8990
AD  - Center of Excellence for Sport Science and Coach Education, East Tennessee State 
      University, Johnson City, TN 37614, USA.
FAU - Devero, Brandon
AU  - Devero B
AD  - Center of Excellence for Sport Science and Coach Education, East Tennessee State 
      University, Johnson City, TN 37614, USA.
FAU - Duca, Marco
AU  - Duca M
AD  - Dipartimento di Scienze Biomediche per la Salute, Universita degli Studi di 
      Milano, 20129 Milan, Italy.
FAU - Stone, Michael H
AU  - Stone MH
AD  - Center of Excellence for Sport Science and Coach Education, East Tennessee State 
      University, Johnson City, TN 37614, USA.
LA  - eng
PT  - Journal Article
DEP - 20200915
PL  - Switzerland
TA  - Sports (Basel)
JT  - Sports (Basel, Switzerland)
JID - 101722684
PMC - PMC7552670
OTO - NOTNLM
OT  - athlete monitoring
OT  - block periodization
OT  - collegiate sports
OT  - specificity
OT  - strength training
COIS- The authors declare no conflict of interest.
EDAT- 2020/09/19 06:00
MHDA- 2020/09/19 06:01
PMCR- 2020/09/15
CRDT- 2020/09/18 01:02
PHST- 2020/08/08 00:00 [received]
PHST- 2020/09/04 00:00 [revised]
PHST- 2020/09/11 00:00 [accepted]
PHST- 2020/09/18 01:02 [entrez]
PHST- 2020/09/19 06:00 [pubmed]
PHST- 2020/09/19 06:01 [medline]
PHST- 2020/09/15 00:00 [pmc-release]
AID - sports8090127 [pii]
AID - sports-08-00127 [pii]
AID - 10.3390/sports8090127 [doi]
PST - epublish
SO  - Sports (Basel). 2020 Sep 15;8(9):127. doi: 10.3390/sports8090127.