+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Corticospinal responses of resistance-trained and un-trained males during dynamic muscle contractions

Corticospinal responses of resistance-trained and un-trained males during dynamic muscle contractions

Journal of Electromyography and Kinesiology 23(5): 1075-1081

Little is known regarding the modulation and the plasticity of the neural pathway interconnecting elements of the central nervous system and skeletal muscle in resistant-trained individuals. The aim of the study was to compare corticospinal and spinal responses measured during dynamic muscle contractions of the tibialis anterior in resistance trained (RT) and un-trained (UT) males. Nine UT and 10 RT male volunteers reported to the laboratory 24h following a familiarisation session. Motor evoked potentials (MEPs) and the cortical silent period were evoked using transcranial magnetic stimulation at a range of contraction intensities and was delivered as the ankle passed 90° during shortening and lengthening contractions. The Hoffmann reflex (H-reflex) and V-waves were evoked with peripheral nerve stimulation. Despite the RT group being significantly stronger during shortening (28%; P=0.023: CI=1.27-15.1Nm), lengthening (25%; P=0.041: CI=0.27-17.0Nm) and isometric muscle actions (20%; P=0.041; CI=0.77-14.9Nm), no differences between the groups existed for corticospinal or spinal variables. Lack of detectable differences between RT and UT individuals may be linked to minimal exposure to task specific, isolated high intensity resistance training of the TA muscle.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 052365709

Download citation: RISBibTeXText

PMID: 23722116

DOI: 10.1016/j.jelekin.2013.04.014

Related references

Resting energy metabolism and cardiovascular disease risk in resistance-trained and aerobically trained males. Metabolism Clinical & Experimental 41(12): 1351-1360, 1992

Trained females exhibit less fatigability than trained males after a heavy knee extensor resistance exercise session. European Journal of Applied Physiology 119(1): 181-190, 2019

Changes in supraspinal and spinal excitability of the biceps brachii following brief, non-fatiguing submaximal contractions of the elbow flexors in resistance-trained males. Neuroscience Letters 607: 66-71, 2015

Differences in H-reflex between athletes trained for explosive contractions and non-trained subjects. European Journal of Applied Physiology and Occupational Physiology 61(1-2): 26-32, 1990

IGF-1 response to arm exercise with eccentric and concentric muscle contractions in resistance-trained athletes with left ventricular hypertrophy. International Journal of Sports Medicine 34(2): 116-122, 2013

Comparison of fatigue responses and rapid force characteristics between explosive- and traditional-resistance-trained males. European Journal of Applied Physiology 118(8): 1539-1546, 2018

Oxidative stress and antioxidant responses to progressive resistance exercise intensity in trained and untrained males. Biology of Sport 32(4): 321-328, 2015

Intraindividual variation of running economy in highly trained and moderately trained males. International Journal of Sports Medicine 18(2): 118-124, 1997

Neuromuscular fatigue during repeated exhaustive submaximal static contractions of knee extensor muscles in endurance-trained, power-trained and untrained men. Acta Physiologica Scandinavica 166(4): 319-326, 1999

Daily Overfeeding from Protein and/or Carbohydrate Supplementation for Eight Weeks in Conjunction with Resistance Training Does not Improve Body Composition and Muscle Strength or Increase Markers Indicative of Muscle Protein Synthesis and Myogenesis in Resistance-Trained Males. Journal of Sports Science and Medicine 15(1): 17-25, 2016

No Effect of Kinesiology Tape on Passive Tension, Strength or Quadriceps Muscle Activation of During Maximal Voluntary Isometric Contractions in Resistance Trained Men. International Journal of Sports Physical Therapy 13(4): 661-667, 2018

Fat mass and obesity associated (FTO) gene influences skeletal muscle phenotypes in non-resistance trained males and elite rugby playing position. Bmc Genetics 18(1): 4, 2017

Heavy Resistance Training and Supplementation With the Alleged Testosterone Booster Nmda has No Effect on Body Composition, Muscle Performance, and Serum Hormones Associated With the Hypothalamo-Pituitary-Gonadal Axis in Resistance-Trained Males. Journal of Sports Science and Medicine 13(1): 192-199, 2014

Effects of 8 weeks of Xpand® 2X pre workout supplementation on skeletal muscle hypertrophy, lean body mass, and strength in resistance trained males. Journal of the International Society of Sports Nutrition 10(1): 44, 2013

Accuracy of Body Mass Index in Classifying Overfatness in Resistance Trained and Non-resistance Trained Young Adults. Medicine & Science in Sports & Exercise 43(Suppl 1): 872-873, 2011