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The effects of resistance exercise o...

Vincent, Kevin Robert.

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The effects of resistance exercise on lipid peroxidation, bone metabolism, and physical performance in adults aged 60--85 years.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The effects of resistance exercise on lipid peroxidation, bone metabolism, and physical performance in adults aged 60--85 years./
Author:	Vincent, Kevin Robert.
Description:	193 p.
Notes:	Chair: Randy W. Braith.
Contained By:	Dissertation Abstracts International60-09B.
Subject:	Biology, Animal Physiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9946060
ISBN:	0599479043

The effects of resistance exercise on lipid peroxidation, bone metabolism, and physical performance in adults aged 60--85 years.
Vincent, Kevin Robert.

The effects of resistance exercise on lipid peroxidation, bone metabolism, and physical performance in adults aged 60--85 years. - 193 p.

Chair: Randy W. Braith.

Thesis (Ph.D.)--University of Florida, 1999.

The purpose of this investigation was to examine the effects of circuit resistance exercise training (CWT) at two different intensity levels on physical function, bone metabolism, and lipid peroxidation. in elderly persons. Sixty-two men and women (age 68.1 ± 6.3 yr.) completed the study. Participants were randomized into three groups: high intensity (HEX, 80% of 1RM for 8 repetitions, n = 22), low-intensity (LEX, 50% of 1RM for 13 repetitions, n = 24) and control (CON, n = 16). HEX and LEX groups trained 3x/wk for 6 months using 11 machines. AD groups were tested pre- and post-training for aerobic capacity (VO2peak), treadmill time to exhaustion, 1RM on the chest press, leg press, leg curl, leg extension, seated row, overhead press, biceps curl, and triceps dip, chest press and leg press endurance, time to walk up one flight of stairs, regional bone mineral density (BMD), serum markers of bone metabolism, and serum lipid peroxidation (LIPOX). Both training groups significantly increased 1RM strength for all 8 exercises (p < 0.05). Total strength increased 17.2 and 17.8% for the LEX and HEX groups, respectively (p < 0.05). VO2peak increased 23.5 and 20. 1% for the LEX and HEX groups, respectively (p < 0.05). Treadmill time increased 26.4 (p < 0.05) and 23.3% for the LEX and HEX groups, respectively. Time to ascend one fight of stairs decreased by 7.3 (p < 0.05) and 5.79% for the LEX and HEX groups, respectively. Chest press endurance increased by 75.5 and 68.0%, and leg press endurance increased by 79.2 and 105% for the LEX and HEX groups, respectively (p < 0.05). Femoral neck (BMD) increased significantly for the HEX group (p < 0.05). Osteocalcin increased significantly for the LEX and HEX groups, and alkaline phosphatase increased for the HEX group (p < 0.05). Both the LEX and HEX groups demonstrated significantly lower levels of LIPOX immediately after the graded exercise test when compared to CON (p < 0.05). The results of this study indicate that one set of either low- (50% IRM) or high- (80% 1RM) intensity resistance exercise is sufficient to increase strength VO2peak, regional BMD, bone turnover, and decrease exercise-induced LIPOX in older adults.

ISBN: 0599479043Subjects--Topical Terms:

1017835
Biology, Animal Physiology.

The effects of resistance exercise on lipid peroxidation, bone metabolism, and physical performance in adults aged 60--85 years.
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100 1 $a Vincent, Kevin Robert. $3 1255054
245 1 0 $a The effects of resistance exercise on lipid peroxidation, bone metabolism, and physical performance in adults aged 60--85 years.
300 $a 193 p.
500 $a Chair: Randy W. Braith.
500 $a Source: Dissertation Abstracts International, Volume: 60-09, Section: B, page: 4513.
502 $a Thesis (Ph.D.)--University of Florida, 1999.
520 $a The purpose of this investigation was to examine the effects of circuit resistance exercise training (CWT) at two different intensity levels on physical function, bone metabolism, and lipid peroxidation. in elderly persons. Sixty-two men and women (age 68.1 ± 6.3 yr.) completed the study. Participants were randomized into three groups: high intensity (HEX, 80% of 1RM for 8 repetitions, n = 22), low-intensity (LEX, 50% of 1RM for 13 repetitions, n = 24) and control (CON, n = 16). HEX and LEX groups trained 3x/wk for 6 months using 11 machines. AD groups were tested pre- and post-training for aerobic capacity (VO2peak), treadmill time to exhaustion, 1RM on the chest press, leg press, leg curl, leg extension, seated row, overhead press, biceps curl, and triceps dip, chest press and leg press endurance, time to walk up one flight of stairs, regional bone mineral density (BMD), serum markers of bone metabolism, and serum lipid peroxidation (LIPOX). Both training groups significantly increased 1RM strength for all 8 exercises (p < 0.05). Total strength increased 17.2 and 17.8% for the LEX and HEX groups, respectively (p < 0.05). VO2peak increased 23.5 and 20. 1% for the LEX and HEX groups, respectively (p < 0.05). Treadmill time increased 26.4 (p < 0.05) and 23.3% for the LEX and HEX groups, respectively. Time to ascend one fight of stairs decreased by 7.3 (p < 0.05) and 5.79% for the LEX and HEX groups, respectively. Chest press endurance increased by 75.5 and 68.0%, and leg press endurance increased by 79.2 and 105% for the LEX and HEX groups, respectively (p < 0.05). Femoral neck (BMD) increased significantly for the HEX group (p < 0.05). Osteocalcin increased significantly for the LEX and HEX groups, and alkaline phosphatase increased for the HEX group (p < 0.05). Both the LEX and HEX groups demonstrated significantly lower levels of LIPOX immediately after the graded exercise test when compared to CON (p < 0.05). The results of this study indicate that one set of either low- (50% IRM) or high- (80% 1RM) intensity resistance exercise is sufficient to increase strength VO2peak, regional BMD, bone turnover, and decrease exercise-induced LIPOX in older adults.
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650 4 $a Gerontology. $3 533633
650 4 $a Health Sciences, Medicine and Surgery. $3 1017756
650 4 $a Health Sciences, Recreation. $3 1018003
650 4 $a Health Sciences, Rehabilitation and Therapy. $3 1017926
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