"The Effect of an Eight-Week Jump Training Program on Markers of Bone T" by Christina R. Erickson

Document Type

Thesis - University Access Only

Award Date

2008

Degree Name

Master of Science (MS)

Department / School

Health, Physical Education, and Recreation

Abstract

Purpose: This study was designed to investigate the effect of an eight-week jump training program on markers of bone turnover. Furthermore, we observed the effect of completing the jumps in one daily session or partitioning them into two sessions with a 6 to 8 hour recovery period between bouts. We hypothesized jumping twice a day would elicit a greater increase in markers of bone formation and a greater decrease in markers of bone resorption than once a day.
Methods: Fifteen healthy males were divided two experimental groups, jumping once daily (J1x) or jumping twice daily (J2x) with the same number of total daily jumps. Blood samples were collected at baseline, week 4, and week 8 to determine serum concentrations of bone specific alkaline phosphate (BAP) and C-terminal telopeptides of type I collagen (CTx). Results: There was a significant effect of time (p=0.005) for changes in serum concentrations of BAP with the 8-week values being significantly higher than baseline values (J1x, 2.7 + 1.4 ug/L; J2x 3.5 + 1.3 ug/L). J2x had an overall mean change significantly different from zero. Change in serum concentration of CTx during the 8 weeks were (Control, -4.9 ± 3.3 ng/mL; J1 x, 1.6 ± 3.1 ng/mL; and J2x, -3.8 ± 2.5 ng/mL).
Conclusion: The data is indicative of an osteogenic effect of high impact jump exercise programs on bone tissue. Additionally, recovery periods between jumping sessions on the same day may result in a greater degree of bone formation and a lesser degree of bone resorption.

Key Words: BONE SPECIFIC ALKALINE PHOSPHATE, C-TERMINAL TELOPEPTIDES OF TYPE I COLLAGEN, EXERCISE, JUMPING, BONE TURNOVER

Library of Congress Subject Headings

Jumping -- Physiological aspects

Bones -- Growth

Bone resorption

Format

application/pdf

Number of Pages

60

Publisher

South Dakota State University

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