PMID- 30589722
OWN - NLM
STAT- MEDLINE
DCOM- 20190813
LR  - 20190813
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 33
IP  - 3
DP  - 2019 Mar
TI  - Variations in Verbal Encouragement Modify Isokinetic Performance.
PG  - 708-716
LID - 10.1519/JSC.0000000000002998 [doi]
AB  - Rendos, NK, Harriell, K, Qazi, S, Regis, RC, Alipio, TC, and Signorile, JF. 
      Variations in verbal encouragement modify isokinetic performance. J Strength Cond 
      Res 33(3): 708-716, 2019-Verbal instruction and encouragement are common in 
      exercise testing; however, the verbiage used during exercise testing is rarely 
      controlled despite the likelihood it may affect the participant's performance. 
      Although variations in verbal cuing based on rate and intensity have been 
      examined during isometric contractions, they have not been examined during 
      isokinetic testing, which is a standardized assessment of muscle performance in 
      athletic, rehabilitation, and research settings. This study examined the effects 
      of 4 variations in verbal encouragement during isokinetic knee flexion and 
      extension exercises. Twenty-three healthy participants (aged 19-34 years) 
      completed 4 isokinetic testing sessions on a Biodex isokinetic dynamometer. Each 
      session consisted of 5, 10, and 15 repetitions at 1.05 rad.s (60 degrees .s), 3.14 rad.s 
      (180 degrees .s), and 5.24 rad.s (300 degrees .s), respectively, separated by 5-minute passive 
      recoveries. The variations in verbal encouragement randomized during each testing 
      session used the following statements: (a) "as fast as you can" (FAST); (b) "as 
      hard as you can" (HARD); (c) "as hard and as fast as you can" (BOTH); and (d) no 
      verbal encouragement (NO CUE). Repeated-measures analyses of variance with a 
      Bonferroni post hoc analysis revealed that the FAST and BOTH verbal cues produced 
      greater work, peak torque, and power at all 3 speeds of isokinetic testing. These 
      findings indicate the verbal cues "as fast as you can" and "as hard and as fast 
      as you can" should be used to maximize performance during isokinetic testing.
FAU - Rendos, Nicole K
AU  - Rendos NK
AD  - Andrews Research & Education Foundation, Gulf Breeze, Florida.
AD  - Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sport Sciences, University of Miami, Coral Gables, Florida.
FAU - Harriell, Kysha
AU  - Harriell K
AD  - Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sport Sciences, University of Miami, Coral Gables, Florida.
FAU - Qazi, Shayaan
AU  - Qazi S
AD  - Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sport Sciences, University of Miami, Coral Gables, Florida.
FAU - Regis, Rebeca C
AU  - Regis RC
AD  - Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sport Sciences, University of Miami, Coral Gables, Florida.
FAU - Alipio, Taislaine C
AU  - Alipio TC
AD  - Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sport Sciences, University of Miami, Coral Gables, Florida.
FAU - Signorile, Joseph F
AU  - Signorile JF
AD  - Laboratory of Neuromuscular Research and Active Aging, Department of Kinesiology 
      and Sport Sciences, University of Miami, Coral Gables, Florida.
AD  - Center on Aging, Miller School of Medicine, University of Miami, Miami, Florida.
LA  - eng
PT  - Journal Article
PT  - Randomized Controlled Trial
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
MH  - Adult
MH  - *Communication
MH  - Cues
MH  - Exercise/physiology
MH  - Exercise Test
MH  - Female
MH  - Humans
MH  - Isometric Contraction/*physiology
MH  - Male
MH  - Torque
MH  - Young Adult
EDAT- 2018/12/28 06:00
MHDA- 2019/08/14 06:00
CRDT- 2018/12/28 06:00
PHST- 2018/12/28 06:00 [pubmed]
PHST- 2019/08/14 06:00 [medline]
PHST- 2018/12/28 06:00 [entrez]
AID - 10.1519/JSC.0000000000002998 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2019 Mar;33(3):708-716. doi: 10.1519/JSC.0000000000002998.