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Full-Text Articles in Medicine and Health Sciences

Effects Of Hormonal Changes Throughout The Menstrual Cycle On Joint Laxity In Females, John C. Roberts Jul 2001

Effects Of Hormonal Changes Throughout The Menstrual Cycle On Joint Laxity In Females, John C. Roberts

Human Movement Sciences & Special Education Theses & Dissertations

The objective of this study was to examine the levels of estrogens, progesterone, LH, FSH, estradiol and testosterone and their relation to ACL laxity throughout the menstrual cycle. Subjects were tested at the onset of menses, the first day of ovulation (days 8–17) and day 23 at the mid-luteal phase. A Pearson Product Moment Correlation Coefficient revealed that there were no statistically significant relationships between laxity measurements, of the KT-2000 or radiographic comparisons, and elevated concentrations of any of the hormones. LH was observed in the follicular phase, at the onset of menses, to have a negative correlation with only …


The Effects Of Four Gymnastics Skills On Vertebral Column Hyperextension In Young Female Gymnasts, Tonia Mcclure Burke Jan 2001

The Effects Of Four Gymnastics Skills On Vertebral Column Hyperextension In Young Female Gymnasts, Tonia Mcclure Burke

Human Movement Sciences & Special Education Theses & Dissertations

There is very limited information available on the effects of gymnastics skills on spinal hyperextension. Eleven young female gymnasts between the ages of 11 and 15 participated in this study. The subjects height and weight were taken then they were screened for musculoskeletal injuries, normal abdominal and back extensor strength, normal hip flexor and hamstring flexibility, spondylolisthesis, and scoliosis. Hyperextension of the spinal column was measured during normal standing, hyperextending the spine in standing, and during four different gymnastics skills, using the Peak5 motion analysis system. Each subject performed five acceptable trials of four different gymnastics skill including a back …