PMID- 31136544
OWN - NLM
STAT- MEDLINE
DCOM- 20210202
LR  - 20210210
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 34
IP  - 10
DP  - 2020 Oct
TI  - Relationships Between Highly Skilled Golfers' Clubhead Velocity and Vertical 
      Ground Reaction Force Asymmetry During Vertical Jumps and an Isometric Midthigh 
      Pull.
PG  - 2824-2831
LID - 10.1519/JSC.0000000000003191 [doi]
AB  - Wells, JET, Mitchell, ACS, Charalambous, LH, and Fletcher, IM. Relationships 
      between highly skilled golfers' clubhead velocity and vertical ground reaction 
      force asymmetry during vertical jumps and an isometric midthigh pull. J Strength 
      Cond Res 34(10): 2824-2831, 2020-Clubhead velocity (CHV) is a commonly measured 
      variable within golf due to strong associations with increased drive distance. 
      Previous research has revealed significant relationships between CHV and vertical 
      ground reaction force (vGRF) variables during bilateral tasks including a 
      countermovement jump (CMJ), squat jump (SJ), drop jump (DJ), and isometric 
      midthigh pull (IMTP). Asymmetries have been linked to performance outcomes in a 
      number of sports; however, few studies have assessed asymmetries within golf. The 
      current study, therefore, examined the relationships between CHV and vGRF 
      asymmetries for CMJ positive impulse, SJ positive impulse, DJ positive impulse, 
      and IMTP peak force (PF). Furthermore, the level of agreement for asymmetries 
      between protocols was assessed by using Kappa coefficients. Fifty highly skilled 
      (handicap </=5) male golfers attended laboratory and range-based testing sessions. 
      Positive impulse and PF were measured using a dual force platform system, with 
      CHV measured using a TrackMan 3e launch monitor. There was no significant 
      relationship (r = -0.14 to 0.22) between CHV and each of the vGRF asymmetry 
      measures. Of the golfers tested, 26 had a "real" asymmetry in the CMJ, 18 had a 
      "real" asymmetry in the SJ, 25 had a "real" asymmetry in the DJ, and 27 had a 
      "real" asymmetry in the IMTP. Kappa coefficients indicated that asymmetries 
      rarely favored the same limb (k = 0.06 to 0.39) with asymmetries varying for 
      individual golfers between protocols. As such, asymmetries are neither beneficial 
      nor detrimental to CHV but are inherently individual and dependent on the task.
FAU - Wells, Jack E T
AU  - Wells JET
AD  - The Professional Golfers' Association, National Training Academy, Ping House, The 
      Belfry, United Kingdom; and.
AD  - School of Sport Science and Physical Activity, Institute for Sport and Physical 
      Activity Research, University of Bedfordshire, Bedford, United Kingdom.
FAU - Mitchell, Andrew C S
AU  - Mitchell ACS
AD  - School of Sport Science and Physical Activity, Institute for Sport and Physical 
      Activity Research, University of Bedfordshire, Bedford, United Kingdom.
FAU - Charalambous, Laura H
AU  - Charalambous LH
AD  - School of Sport Science and Physical Activity, Institute for Sport and Physical 
      Activity Research, University of Bedfordshire, Bedford, United Kingdom.
FAU - Fletcher, Iain M
AU  - Fletcher IM
AD  - School of Sport Science and Physical Activity, Institute for Sport and Physical 
      Activity Research, University of Bedfordshire, Bedford, United Kingdom.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Cross-Sectional Studies
MH  - Golf/*physiology
MH  - Humans
MH  - Male
MH  - Muscle Strength/*physiology
MH  - Posture
MH  - Thigh/*physiology
MH  - Young Adult
EDAT- 2019/05/29 06:00
MHDA- 2021/02/03 06:00
CRDT- 2019/05/29 06:00
PHST- 2019/05/29 06:00 [pubmed]
PHST- 2021/02/03 06:00 [medline]
PHST- 2019/05/29 06:00 [entrez]
AID - 00124278-202010000-00015 [pii]
AID - 10.1519/JSC.0000000000003191 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2020 Oct;34(10):2824-2831. doi: 
      10.1519/JSC.0000000000003191.