TY - JOUR
T1 - EFFECTS ON VOLUME LOAD AND RATINGS OF PERCEIVED EXERTION IN INDIVIDUALS’ ADVANCED WEIGHT TRAINING AFTER TRANSCRANIAL DIRECT CURRENT STIMULATION
AU - Lattari, Eduardo
AU - Filho, Blair José Rosa
AU - Fonseca, Sidnei Jorge
AU - Murillo-Rodriguez, Eric
AU - Rocha, Nuno
AU - Machado, Sérgio
AU - Neto, Geraldo Albuquerque Maranhão
N1 - Publisher Copyright:
© 2018 National Strength and Conditioning Association.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Lattari, E, Rosa Filho, BJ, Fonseca Junior, SJ, Murillo-Rodriguez, E, Rocha, N, Machado, S, and Maranhão Neto, GA. Effects on volume load and ratings of perceived exertion in individuals’ advanced weight training after transcranial direct current stimulation. J Strength Cond Res 34(1): 89–96, 2020—The aim of this study was investigate the effects of transcranial direct current stimulation (tDCS) on volume load and ratings of perceived exertion. Fifteen young healthy individuals, aged between 20 and 30 years in advanced strength training were recruited. Test and retest of the 10 maximum repetitions (10RM) were performed to determine the reliability of load used. Subjects performed 3 experimental conditions in a randomized, double-blinded crossover design: anodic stimulation (a-tDCS), cathodic stimulation (c-tDCS), and sham (2 mA for 20 minutes targeting the dorsolateral prefrontal cortex left). Immediately after the experimental conditions, subjects completed 1 set of maximum repetitions with 10RM load (volume load) and answered to OMNI-RES (poststimulation) (level of significance p # 0.05). The volume load showed main effect for condition (F(2, 28) = 164.801; p, 0.001). In poststimulation, a-tDCS was greater than c-tDCS (p # 0.001) and sham (p # 0.001). For ratings of perceived exertion (OMNI-RES), the results showed main effect for condition (F(2, 28) = 9.768; p # 0.05). In poststimulation, c-tDCS was greater than a-tDCS (p # 0.05) and sham (p # 0.05). We conclude that the use of a-tDCS may promote increase in volume load for the LP45 exercise. Moreover, higher volume loads are necessary to maximize muscle strength and anabolism.
AB - Lattari, E, Rosa Filho, BJ, Fonseca Junior, SJ, Murillo-Rodriguez, E, Rocha, N, Machado, S, and Maranhão Neto, GA. Effects on volume load and ratings of perceived exertion in individuals’ advanced weight training after transcranial direct current stimulation. J Strength Cond Res 34(1): 89–96, 2020—The aim of this study was investigate the effects of transcranial direct current stimulation (tDCS) on volume load and ratings of perceived exertion. Fifteen young healthy individuals, aged between 20 and 30 years in advanced strength training were recruited. Test and retest of the 10 maximum repetitions (10RM) were performed to determine the reliability of load used. Subjects performed 3 experimental conditions in a randomized, double-blinded crossover design: anodic stimulation (a-tDCS), cathodic stimulation (c-tDCS), and sham (2 mA for 20 minutes targeting the dorsolateral prefrontal cortex left). Immediately after the experimental conditions, subjects completed 1 set of maximum repetitions with 10RM load (volume load) and answered to OMNI-RES (poststimulation) (level of significance p # 0.05). The volume load showed main effect for condition (F(2, 28) = 164.801; p, 0.001). In poststimulation, a-tDCS was greater than c-tDCS (p # 0.001) and sham (p # 0.001). For ratings of perceived exertion (OMNI-RES), the results showed main effect for condition (F(2, 28) = 9.768; p # 0.05). In poststimulation, c-tDCS was greater than a-tDCS (p # 0.05) and sham (p # 0.05). We conclude that the use of a-tDCS may promote increase in volume load for the LP45 exercise. Moreover, higher volume loads are necessary to maximize muscle strength and anabolism.
KW - dorsolateral prefrontal cortex
KW - electrical current
KW - noninvasive brain stimulation
KW - strength
KW - tDCS
UR - http://www.scopus.com/inward/record.url?scp=85054151091&partnerID=8YFLogxK
U2 - 10.1519/JSC.0000000000002434
DO - 10.1519/JSC.0000000000002434
M3 - Artículo
C2 - 29329154
AN - SCOPUS:85054151091
SN - 1064-8011
VL - 34
SP - 89
EP - 96
JO - Journal of Strength and Conditioning Research
JF - Journal of Strength and Conditioning Research
IS - 1
ER -