Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
 
FIND ARTICLES

jssm
jssm

Journal of Sports Science and Medicine
ISSN: 1303 - 2968
       SCImago 2016     SJR: 0.981   Cites per Doc. 2-Year: 2.04    3-Year: 2.17
JCReports 2016
    IF 2-Year: 1.797    3-Year: 1.970    5-Year: 2.061    Average Citations PI: 7.7
 
©Journal of Sports Science and Medicine (2017) 16, 391 - 395
Research article
Moderate Intensity Cycling Exercise after Upper Extremity Resistance Training Interferes Response to Muscle Hypertrophy but Not Strength Gains
Shigeto Tomiya1, Naoki Kikuchi2,, Koichi Nakazato3

1 Faculty of Health Sciences, Kyorin University, Tokyo, Japan
2 Department of Training Science, Nippon Sport Science University, Tokyo, Japan
3 epartment of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan

Naoki Kikuchi
✉ PhD, CSCS*D Department of Training Science, Nippon Sport Science University 158-8508, 7-1-1, Fukasawa, Setagaya-ku, Tokyo, Japan
Email: n.kikuchi@nittai.ac.jp

Received:
19-04-2017 -- Accepted: 06-07-2017 --
Published (online): 08-08-2017

ABSTRACT

The purpose of the present study was to examine the effect of 30-min moderate intensity cycling exercise immediately after upper-body resistance training on the muscle hypertrophy and strength gain. Fourteen subjects were randomly divided between two groups. One group performed moderate intensity (55% of maximum oxygen consumption [VO2max], 30 min) cycle training immediately after arm resistance training as concurrent training (CT; n = 7, age: 21.8 ± 0.7 years, height: 1.68 ± 0.06 m, weight: 60.3 ± 7.4 kg); the second group performed the same endurance and arm RT on separate days as control group (SEP; n=7, age: 22.1 ± 0.7 years, height: 1.76 ± 0.05 m, weight: 63.8 ± 3.6 kg). The supervised progressive RT program was designed to induce muscular hypertrophy (3-5 sets of 10 repetitions) with bilateral arm-curl exercise using 75% of the one repetition maximum (1RM) with 2-min rest intervals. The RT program was performed for 8 weeks, twice per week. Muscle cross-sectional area (CSA), 1RM, and VO2max were measured pre- and post-training. Significant increases in muscle CSA from pre- to post-training were observed in both the SEP (p = 0.001, effect size [ES] = 0.84) and the CT groups (p = 0.004, ES = 0.45). A significant increase in 1RM from pre- to post-training was observed in the SEP (p = 0.025, ES = 0.91) and CT groups (p = 0.001, ES = 2.38). There were no interaction effects (time × group) for CSA, 1RM, or VO2max. A significantly higher percentage change of CSA was observed in the SEP group (12.1 ± 4.9%) compared to the CT group (5.0 ± 2.7%, p = 0.029), but no significant difference was observed in the 1RM (SEP: 19.8 ± 16.8%, CT: 24.3 ± 11.1%). The data suggest that significant improvement of CSA and strength can be expected with progressive resistance training with subsequent endurance exercise performed immediately or on a different day. Changes in CSA might be affected by subsequent cycling exercise after 8 weeks of training.

Key words: Concurrent training, systemic, strength, muscle hypertrophy, arm-curl exercise
Key Points
Moderate intensity cycling exercise immediately after upper-body resistance training influences the magnitude of muscle hypertrophy and relative value of CSA changes.
There was no statistically significant difference in the % change in 1RM between groups after concurrent strength training and moderate intensity endurance training.
Timing of endurance training could alter the degree of muscular growth induced by resistance training.

 


  

Article Tools
How to Cite
Citations in ScholarGoogle 
Statistics
Article views from publication date
Abstract :1551
Full-text :1109
Pdf :194
Total :2854
New content alert
 
JSSM | Copyright 2001-2017 | All rights reserved. | LEGAL NOTICES | Publisher
It is forbidden the total or partial reproduction of this web site and the published materials, the treatment of its database, any kind
of transition and for any means, either electronic, mechanic or other methods, without the previous written permission of the JSSM.