PMID- 30874884
OWN - NLM
STAT- MEDLINE
DCOM- 20190827
LR  - 20210109
IS  - 1439-6327 (Electronic)
IS  - 1439-6319 (Linking)
VI  - 119
IP  - 6
DP  - 2019 Jun
TI  - Cross-education: effects of age on rapid and maximal voluntary contractile 
      characteristics in males.
PG  - 1313-1322
LID - 10.1007/s00421-019-04123-8 [doi]
AB  - PURPOSE: The purpose of this study was to determine the effect of age on the 
      cross-education of rapid and maximal contractile properties for the knee 
      extensors. METHODS: Young (n = 10; age = 21.1 +/- 1.7 years) and older (n = 10; 
      age = 65.3 +/- 8.3 years) males performed unilateral isokinetic resistance training 
      (RT) of the knee extensors for 4 weeks. Maximal voluntary isokinetic (45 degrees  s(-1) 
      and 300 degrees  s(-1)) and isometric testing was conducted for the trained and untrained 
      leg before and after RT. Peak torque (PT) and acceleration were obtained from 
      isokinetic testing as well as torque at 30 ms (TQ(30)) and 100 ms (TQ(100)) from 
      the 45 degrees  s(-1) contraction. PT and rate of torque development were recorded from 
      the isometric contractions. RESULTS: Independent of age, isometric PT (10.1%; 
      p = 0.006) as well as PT and acceleration at 300 degrees  s(-1) (6.7%; p = 0.008 and 
      4.0%; p = 0.016, respectively) increased in the untrained leg. At 45 degrees  s(-1), 
      acceleration was increased (3.6%; p = 0.021), but PT remained unchanged 
      (p = 0.227). TQ(100) increased similarly between groups (4.5%; p = 0.014), but 
      TQ(30) increased only in the older group (9.5%; p = 0.022). CONCLUSIONS: 
      Cross-education of rapid and maximal contractile parameters can be achieved early 
      during unilateral RT independent of age. These findings indicate the potential 
      for particular unilateral RT protocols to be used for older adults in 
      rehabilitative settings to offset disuse-related reductions in contractile 
      function, which are most dramatic in this population.
FAU - Hester, Garrett M
AU  - Hester GM
AD  - Department of Exercise Science and Sport Management, Kennesaw State University, 
      520 Parliament Garden Way NW, Kennesaw, GA, 30144, USA.
FAU - Magrini, Mitchel A
AU  - Magrini MA
AD  - Applied Neuromuscular Physiology Laboratory, Oklahoma State University, 192 CRC, 
      Stillwater, OK, 74078, USA.
FAU - Colquhoun, Ryan J
AU  - Colquhoun RJ
AD  - Applied Neuromuscular Physiology Laboratory, Oklahoma State University, 192 CRC, 
      Stillwater, OK, 74078, USA.
FAU - Barrera-Curiel, Alejandra
AU  - Barrera-Curiel A
AD  - Applied Neuromuscular Physiology Laboratory, Oklahoma State University, 192 CRC, 
      Stillwater, OK, 74078, USA.
FAU - Estrada, Carlos A
AU  - Estrada CA
AD  - Applied Neuromuscular Physiology Laboratory, Oklahoma State University, 192 CRC, 
      Stillwater, OK, 74078, USA.
FAU - Olmos, Alex A
AU  - Olmos AA
AD  - Department of Exercise Science and Sport Management, Kennesaw State University, 
      520 Parliament Garden Way NW, Kennesaw, GA, 30144, USA.
FAU - Bailly, Alyssa R
AU  - Bailly AR
AD  - Department of Exercise Science and Sport Management, Kennesaw State University, 
      520 Parliament Garden Way NW, Kennesaw, GA, 30144, USA.
FAU - Ha, Phuong L
AU  - Ha PL
AD  - Department of Exercise Science and Sport Management, Kennesaw State University, 
      520 Parliament Garden Way NW, Kennesaw, GA, 30144, USA.
FAU - DeFreitas, Jason M
AU  - DeFreitas JM
AUID- ORCID: 0000-0002-5108-8079
AD  - Applied Neuromuscular Physiology Laboratory, Oklahoma State University, 192 CRC, 
      Stillwater, OK, 74078, USA. jason.defreitas@okstate.edu.
LA  - eng
PT  - Journal Article
DEP - 20190314
PL  - Germany
TA  - Eur J Appl Physiol
JT  - European journal of applied physiology
JID - 100954790
SB  - IM
MH  - *Adaptation, Physiological
MH  - Aged
MH  - Aging/*physiology
MH  - Humans
MH  - *Isometric Contraction
MH  - Male
MH  - Middle Aged
MH  - *Muscle Strength
MH  - Muscle, Skeletal/growth & development/physiology
MH  - Young Adult
OTO - NOTNLM
OT  - Acceleration
OT  - Aging
OT  - Knee extensors
OT  - Rate of torque development
OT  - Resistance training
EDAT- 2019/03/16 06:00
MHDA- 2019/08/28 06:00
CRDT- 2019/03/16 06:00
PHST- 2018/08/29 00:00 [received]
PHST- 2019/03/08 00:00 [accepted]
PHST- 2019/03/16 06:00 [pubmed]
PHST- 2019/08/28 06:00 [medline]
PHST- 2019/03/16 06:00 [entrez]
AID - 10.1007/s00421-019-04123-8 [pii]
AID - 10.1007/s00421-019-04123-8 [doi]
PST - ppublish
SO  - Eur J Appl Physiol. 2019 Jun;119(6):1313-1322. doi: 10.1007/s00421-019-04123-8. 
      Epub 2019 Mar 14.