Further potentiation of dynamic muscle strength after resistance training

Naokazu Miyamoto, Taku Wakahara, Ryoichi Ema, Yasuo Kawakami

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

PURPOSE: One bout of 5-6 s of maximal voluntary isometric contraction (MVC) is known to enhance subsequent dynamic joint performance such as dynamic joint torque and power with maximal voluntary effort. On the other hand, such a muscle contraction can also induce muscle fatigue. It is then possible that individual differences in fatigue resistance is a factor that affects the balance between potentiation and fatigue. Here, we examined the effect of chronic heavy-resistance training on the extent and time course of the potentiation of maximal voluntary dynamic torque. METHODS: Before and after a 12-wk intervention, maximal voluntary concentric knee extension torque at 210 ·s was measured in the following sequence: before and immediately after a 5-s MVC of knee extension and 1, 3, and 5 min thereafter. The training group performed heavy-resistance training exercise of knee extension consisting of five sets of eight repetitions with 80% of one-repetition maximum, three sessions a week during the intervention period. RESULTS: Before the resistance training intervention, maximal voluntary concentric torque was significantly enhanced only at 1 and 3 min post-MVC. After the 12-wk resistance training, the maximal voluntary concentric torque was potentiated also immediately after the conditioning MVC and was further increased at 1-min point. CONCLUSION: These findings indicate that the contraction-induced potentiation of maximal voluntary dynamic torque is pronounced in strength-trained individuals.

Original languageEnglish
Pages (from-to)1323-1330
Number of pages8
JournalMedicine and Science in Sports and Exercise
Volume45
Issue number7
DOIs
Publication statusPublished - 2013 Jul

Fingerprint

Resistance Training
Torque
Muscle Strength
Isometric Contraction
Knee
Fatigue
Muscle Fatigue
Muscle Contraction
Individuality
Joints

Keywords

  • maximal voluntary concentric torque
  • muscle fatigue
  • Postactivation potentiation
  • quadriceps femoris
  • twitch contraction
  • warm-up

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Further potentiation of dynamic muscle strength after resistance training. / Miyamoto, Naokazu; Wakahara, Taku; Ema, Ryoichi; Kawakami, Yasuo.

In: Medicine and Science in Sports and Exercise, Vol. 45, No. 7, 07.2013, p. 1323-1330.

Research output: Contribution to journalArticle

Miyamoto, Naokazu ; Wakahara, Taku ; Ema, Ryoichi ; Kawakami, Yasuo. / Further potentiation of dynamic muscle strength after resistance training. In: Medicine and Science in Sports and Exercise. 2013 ; Vol. 45, No. 7. pp. 1323-1330.
@article{45dbf4294f394ed5a488ce1b2be5f7a4,
title = "Further potentiation of dynamic muscle strength after resistance training",
abstract = "PURPOSE: One bout of 5-6 s of maximal voluntary isometric contraction (MVC) is known to enhance subsequent dynamic joint performance such as dynamic joint torque and power with maximal voluntary effort. On the other hand, such a muscle contraction can also induce muscle fatigue. It is then possible that individual differences in fatigue resistance is a factor that affects the balance between potentiation and fatigue. Here, we examined the effect of chronic heavy-resistance training on the extent and time course of the potentiation of maximal voluntary dynamic torque. METHODS: Before and after a 12-wk intervention, maximal voluntary concentric knee extension torque at 210 ·s was measured in the following sequence: before and immediately after a 5-s MVC of knee extension and 1, 3, and 5 min thereafter. The training group performed heavy-resistance training exercise of knee extension consisting of five sets of eight repetitions with 80{\%} of one-repetition maximum, three sessions a week during the intervention period. RESULTS: Before the resistance training intervention, maximal voluntary concentric torque was significantly enhanced only at 1 and 3 min post-MVC. After the 12-wk resistance training, the maximal voluntary concentric torque was potentiated also immediately after the conditioning MVC and was further increased at 1-min point. CONCLUSION: These findings indicate that the contraction-induced potentiation of maximal voluntary dynamic torque is pronounced in strength-trained individuals.",
keywords = "maximal voluntary concentric torque, muscle fatigue, Postactivation potentiation, quadriceps femoris, twitch contraction, warm-up",
author = "Naokazu Miyamoto and Taku Wakahara and Ryoichi Ema and Yasuo Kawakami",
year = "2013",
month = "7",
doi = "10.1249/MSS.0b013e3182874c0e",
language = "English",
volume = "45",
pages = "1323--1330",
journal = "Medicine and Science in Sports and Exercise",
issn = "0195-9131",
publisher = "Lippincott Williams and Wilkins",
number = "7",

}

TY - JOUR

T1 - Further potentiation of dynamic muscle strength after resistance training

AU - Miyamoto, Naokazu

AU - Wakahara, Taku

AU - Ema, Ryoichi

AU - Kawakami, Yasuo

PY - 2013/7

Y1 - 2013/7

N2 - PURPOSE: One bout of 5-6 s of maximal voluntary isometric contraction (MVC) is known to enhance subsequent dynamic joint performance such as dynamic joint torque and power with maximal voluntary effort. On the other hand, such a muscle contraction can also induce muscle fatigue. It is then possible that individual differences in fatigue resistance is a factor that affects the balance between potentiation and fatigue. Here, we examined the effect of chronic heavy-resistance training on the extent and time course of the potentiation of maximal voluntary dynamic torque. METHODS: Before and after a 12-wk intervention, maximal voluntary concentric knee extension torque at 210 ·s was measured in the following sequence: before and immediately after a 5-s MVC of knee extension and 1, 3, and 5 min thereafter. The training group performed heavy-resistance training exercise of knee extension consisting of five sets of eight repetitions with 80% of one-repetition maximum, three sessions a week during the intervention period. RESULTS: Before the resistance training intervention, maximal voluntary concentric torque was significantly enhanced only at 1 and 3 min post-MVC. After the 12-wk resistance training, the maximal voluntary concentric torque was potentiated also immediately after the conditioning MVC and was further increased at 1-min point. CONCLUSION: These findings indicate that the contraction-induced potentiation of maximal voluntary dynamic torque is pronounced in strength-trained individuals.

AB - PURPOSE: One bout of 5-6 s of maximal voluntary isometric contraction (MVC) is known to enhance subsequent dynamic joint performance such as dynamic joint torque and power with maximal voluntary effort. On the other hand, such a muscle contraction can also induce muscle fatigue. It is then possible that individual differences in fatigue resistance is a factor that affects the balance between potentiation and fatigue. Here, we examined the effect of chronic heavy-resistance training on the extent and time course of the potentiation of maximal voluntary dynamic torque. METHODS: Before and after a 12-wk intervention, maximal voluntary concentric knee extension torque at 210 ·s was measured in the following sequence: before and immediately after a 5-s MVC of knee extension and 1, 3, and 5 min thereafter. The training group performed heavy-resistance training exercise of knee extension consisting of five sets of eight repetitions with 80% of one-repetition maximum, three sessions a week during the intervention period. RESULTS: Before the resistance training intervention, maximal voluntary concentric torque was significantly enhanced only at 1 and 3 min post-MVC. After the 12-wk resistance training, the maximal voluntary concentric torque was potentiated also immediately after the conditioning MVC and was further increased at 1-min point. CONCLUSION: These findings indicate that the contraction-induced potentiation of maximal voluntary dynamic torque is pronounced in strength-trained individuals.

KW - maximal voluntary concentric torque

KW - muscle fatigue

KW - Postactivation potentiation

KW - quadriceps femoris

KW - twitch contraction

KW - warm-up

UR - http://www.scopus.com/inward/record.url?scp=84880636107&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880636107&partnerID=8YFLogxK

U2 - 10.1249/MSS.0b013e3182874c0e

DO - 10.1249/MSS.0b013e3182874c0e

M3 - Article

VL - 45

SP - 1323

EP - 1330

JO - Medicine and Science in Sports and Exercise

JF - Medicine and Science in Sports and Exercise

SN - 0195-9131

IS - 7

ER -