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Br J Sports Med. 2003 Dec;37(6):543-5.

Whole body muscle hypertrophy from resistance training: distribution and total mass.

Author information

1
Tokyo Metropolitan University, Exercise and Sport Science, Minami-Ohsawa, Hachioji, Tokyo, Japan. abebe@comp.metro-u.ac.jp

Abstract

OBJECTIVE:

To examine the absolute and relative changes in skeletal muscle (SM) size using whole body magnetic resonance imaging (MRI) in response to heavy resistance training (RT).

METHOD:

Three young men trained three days a week for 16 weeks.

RESULTS:

MRI measured total SM mass and fat free mass (FFM) had increased by 4.2 kg and 2.6 kg respectively after resistance training.

CONCLUSIONS:

RT induces larger increases in SM mass than in FFM. RT induced muscle hypertrophy does not occur uniformly throughout each individual muscle or region of the body. Therefore the distribution of muscle hypertrophy and total SM mass are important for evaluating the effects of total body RT on muscle size.

PMID:
14665598
PMCID:
PMC1724694
[Indexed for MEDLINE]
Free PMC Article

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