dc.contributor.author | Humphries, B | |
dc.contributor.author | Newton, R | |
dc.contributor.author | Bronks, R | |
dc.contributor.author | Marshall-Gradisnik, Sonya | |
dc.contributor.author | McBride, Jeff | |
dc.contributor.author | Triplett-McBride, T | |
dc.contributor.author | Hakkinen, Kejo | |
dc.contributor.author | Kraemer, William J | |
dc.contributor.author | Humphries, N | |
dc.date.accessioned | 2013-07-05 | |
dc.date.accessioned | 2014-09-24T04:58:35Z | |
dc.date.accessioned | 2017-03-01T23:54:08Z | |
dc.date.available | 2017-03-01T23:54:08Z | |
dc.date.issued | 2000 | |
dc.date.modified | 2014-09-24T04:58:35Z | |
dc.identifier.issn | 0195-9131 | |
dc.identifier.uri | http://hdl.handle.net/10072/63126 | |
dc.description.abstract | Purpose: This study examined the effects of 24 wk of high intensity strength
training or low intensity walking on lumbar bone mineral density (BMD), muscular strength, and calcium turnover in Australian women
either taking hormone replacement therapy (HRT) or not taking HRT. Methods: A subject pool of 64 women between 45–65 yr and
randomly allocated into weights (N 5 21), walking (N 5 20), weightsHRT (N 5 14), and walkingHRT (N 5 9) groups completed this
study. All subjects trained twice weekly in either a 50-min walking or weight-training program (60–90% 1RM). Measurements
included maximal isometric knee strength, 1RM bench press, 1RM squat, isokinetic back strength, lumbar (L2-L4) BMD, serum
osteocalcin, and urinary deoxypyridinoline crosslinks (Dpd). Results: No significant group differences in BMD were evident at the
completion of training. However, a significant (P , 0.05) within group change was apparent for the walking group since BMD
decreased 1.3% below baseline testing. Osteocalcin levels increased significantly (P , 0.05) in the walking (22%) group. Maximal
bench press and squat strength improved significantly (P , 0.05) in the weights (25.8% and 37.7%) and weightsHRT (25.4% and
35.7%) groups. The weights group also increased significantly (P , 0.05) in isokinetic back strength (22.2%). Conclusion: It was
concluded that short-term high intensity resistance training provides an effective means for increasing muscular strength in women
between 45 and 65 yr. The training effects on lumbar BMD were not apparent in the present study. | |
dc.description.peerreviewed | Yes | |
dc.description.publicationstatus | Yes | |
dc.publisher | The American College of Sports Medicine | |
dc.publisher.place | Indiana | |
dc.publisher.uri | http://journals.lww.com/acsm-msse/Abstract/2000/06000/Effect_of_exercise_intensity_on_bone_density,.2.aspx | |
dc.relation.ispartofpagefrom | 1043 | |
dc.relation.ispartofpageto | 1050 | |
dc.relation.ispartofissue | 6 | |
dc.relation.ispartofjournal | Medicine and Science in Sports and Exercise | |
dc.relation.ispartofvolume | 32 | |
dc.subject.fieldofresearch | Exercise Physiology | |
dc.subject.fieldofresearch | Human Movement and Sports Sciences | |
dc.subject.fieldofresearch | Medical Physiology | |
dc.subject.fieldofresearch | Public Health and Health Services | |
dc.subject.fieldofresearchcode | 110602 | |
dc.subject.fieldofresearchcode | 1106 | |
dc.subject.fieldofresearchcode | 1116 | |
dc.subject.fieldofresearchcode | 1117 | |
dc.title | Effect of exercise intensity on bone density, strength, and calcium turnover in older women | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | c1x | |
gro.faculty | Griffith Health Faculty | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Marshall-Gradisnik, Sonya M. | |