Effects of whole-body low-intensity resistance training with slow movement and tonic force generation on muscular size and strength in young men

Michiya Tanimoto, Kiyoshi Sanada, Kenta Yamamoto, Hiroshi Kawano, Yuko Gando, Izumi Tabata, Naokata Ishii, Motohiko Miyachi

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

Tanimoto, M, Sanada, K, Yamamoto, K, Kawano, H, Gando, Y, Tabata, I, Ishii, N, and Miyachi, M. Effects of whole-body low-intensity resistance training with slow movement and tonic force generation on muscular size and strength in young men. J Strength Cond Res 22(6): 1926-1938, 2008-Our previous study showed that relatively low-intensity (-50% one-repetition maximum [1 RM]) resistance training (knee extension) with slow movement and tonic force generation (LST) caused as significant an increase in muscular size and strength as high-intensity (∼80% 1 RM) resistance training with normal speed (HN). However, that study examined only local effects of one type of exercise (knee extension) on knee extensor muscles. The present study was performed to examine whether a whole-body LST resistance training regimen is as effective on muscular hypertrophy and strength gain as HN resistance training. Thirty-six healthy young men without experience of regular resistance training were assigned into three groups (each n = 12) and performed whole-body resistance training regimens comprising five types of exercise (vertical squat, chest press, latissimus dorsi pull-down, abdominal bend, and back extension: three sets each) with LST (-55-60% 1 RM, 3 seconds for eccentric and concentric actions, and no relaxing phase); HN (∼80-90% 1 RM, 1 second for concentric and eccentric actions, 1 second for relaxing); and a sedentary control group (CON). The mean repetition maximum was eight-repetition maximum in LST and HN. The training session was performed twice a week for 13 weeks. The LST training caused significant (p < 0.05) increases in whole-body muscle thickness (6.8 ± 3.4% in a sum of six sites) and 1 RM strength (33.0 ± 8.8% in a sum of five exercises) comparable with those induced by HN training (9.1 ± 4.2%, 41.2 ± 7.6% in each measurement item). There were no such changes in the CON group. The results suggest that a whole-body LST resistance training regimen is as effective for muscular hypertrophy and strength gain as HN resistance training.

Original languageEnglish
Pages (from-to)1926-1938
Number of pages13
JournalJournal of strength and conditioning research
Volume22
Issue number6
DOIs
Publication statusPublished - 2008 Nov
Externally publishedYes

Keywords

  • Continuous muscular activity
  • Intramuscular hypoxic environment
  • Muscular hypertrophy
  • Resistance training regimens

ASJC Scopus subject areas

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

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