PMID- 33312276
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240330
IS  - 1640-5544 (Print)
IS  - 1899-7562 (Electronic)
IS  - 1640-5544 (Linking)
VI  - 74
DP  - 2020 Aug
TI  - Dynamic Strength Index: Relationships with Common Performance Variables and 
      Contextualization of Training Recommendations.
PG  - 59-70
LID - 10.2478/hukin-2020-0014 [doi]
AB  - The purposes of this study were to examine the relationships between dynamic 
      strength index (DSI) and other strength-power performance characteristics and to 
      contextualize DSI scores using case study comparisons. 88 male and 67 female NCAA 
      division I collegiate athletes performed countermovement jumps (CMJ) and 
      isometric mid-thigh pulls (IMTP) during a pre-season testing session as part of a 
      long-term athlete monitoring program. Spearman's correlations were used to assess 
      the relationships between DSI and CMJ peak force, height, modified reactive 
      strength index, peak power and IMTP peak force and rate of force development 
      (RFD). Very large relationships existed between DSI and IMTP peak force (r = 
      -0.848 and -0.746), while small-moderate relationships existed between DSI and 
      CMJ peak force (r = 0.297 and 0.313), height (r = 0.108 and 0.167), modified 
      reactive strength index (r = 0.174 and 0.274), and IMTP RFD (r = -0.341 and 
      -0.338) for men and women, respectively. Finally, relationships between DSI and 
      CMJ peak power were trivial-small for male (r = 0.008) and female athletes (r = 
      0.191). Case study analyses revealed that despite similar DSI scores, each 
      athlete's percentile rankings for each variable and CMJ force-time 
      characteristics were unique, which may suggest different training emphases are 
      needed. Based on the explained variance, an athlete's IMTP performance may have a 
      larger influence on their DSI score compared to the CMJ. DSI scores should be 
      contextualized using additional performance data to ensure each individual 
      athlete receives the appropriate training stimulus during different training 
      phases throughout the year.
CI  - (c) 2020 Timothy J. Suchomel, Christopher J. Sole, Christopher R. Bellon, Michael 
      H. Stone, published by Sciendo.
FAU - Suchomel, Timothy J
AU  - Suchomel TJ
AD  - Department of Human Movement Sciences, Carroll University, Waukesha, WI, USA.
FAU - Sole, Christopher J
AU  - Sole CJ
AD  - Department of Health and Human Performance, The Citadel - The Military College of 
      South Carolina, Charleston, SC, USA.
FAU - Bellon, Christopher R
AU  - Bellon CR
AD  - Department of Health and Human Performance, The Citadel - The Military College of 
      South Carolina, Charleston, SC, USA.
FAU - Stone, Michael H
AU  - Stone MH
AD  - Department of Sport, Exercise, Recreation, and Kinesiology, East Tennessee State 
      University, Johnson City, TN, USA.
LA  - eng
PT  - Journal Article
DEP - 20200831
PL  - Poland
TA  - J Hum Kinet
JT  - Journal of human kinetics
JID - 101513031
PMC - PMC7706654
OTO - NOTNLM
OT  - countermovement jump
OT  - isometric mid-thigh pull, strength
OT  - peak power
OT  - rate of force development
OT  - reactive strength index-modified
EDAT- 2020/12/15 06:00
MHDA- 2020/12/15 06:01
PMCR- 2020/08/31
CRDT- 2020/12/14 10:56
PHST- 2020/12/14 10:56 [entrez]
PHST- 2020/12/15 06:00 [pubmed]
PHST- 2020/12/15 06:01 [medline]
PHST- 2020/08/31 00:00 [pmc-release]
AID - hukin-2020-0014 [pii]
AID - 10.2478/hukin-2020-0014 [doi]
PST - epublish
SO  - J Hum Kinet. 2020 Aug 31;74:59-70. doi: 10.2478/hukin-2020-0014. eCollection 2020 
      Aug.