title: Effects of high versus low-intensity resistance training on bone mineral density in young males.
abstract: The purpose of this study was to investigate the effect of high-intensity and low-intensity resistance training upon bone mineral density (BMD) by comparing the BMD of young male powerlifters (n = 5), recreational trainees (n = 5), and controls (n = 5). Lumbar spine (L2-L4), proximal femur, and whole body BMDs were measured using dual-energy X-ray absorptiometry (DXA). The high-intensity group showed a significantly greater BMD when the whole body and trochanter regions were measured than the low-intensity and control group. The BMD of the lumbar spine, femoral neck, and Ward's triangle was greater in the high-intensity group compared with the control group. There was no significant BMD difference between the low-intensity and control group except at the trochanter region. These results suggest that high-intensity resistance training is effective for increasing BMD, but low-intensity resistance training is not.
authors.affiliation: Body Design Medical Institute, Ikuno, Osaka, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Tsuzuku
authors.forename: H
authors.initials: H
authors.lastname: Shimokata
authors.forename: Y
authors.initials: Y
authors.lastname: Ikegami
authors.forename: K
authors.initials: K
authors.lastname: Yabe
authors.forename: R D
authors.initials: RD
authors.lastname: Wasnich
mesh_terms: D015502:Absorptiometry, Photon; D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D015519:Bone Density / Q000502:physiology*; D005269:Femur / Q000000981:diagnostic imaging / Q000378:metabolism*; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000378:metabolism*; D008297:Male; D014891:Weight Lifting / Q000502:physiology*