The Effect of cessation of training on selected physiological and performance variables in female runners

dc.contributor.authorDoherty, Roisheen Andreaen_US
dc.date.accessioned2024-08-13T20:19:03Z
dc.date.available2024-08-13T20:19:03Z
dc.date.copyright1994en_US
dc.date.issued1994
dc.degree.departmentSchool of Physical Education
dc.degree.departmentSchool of Exercise Science, Physical and Health Education
dc.degree.levelMaster of Science M.Sc.en
dc.description.abstractThe purpose of this study was to examine the effect of 15 days of cessation of training on maximal oxygen consumption (VO₂max) and selected physiological functions as they relate to VO₂max in female middle distance runners with a training base of at least two years. Fifteen female runners participated in the study (20 (3) yrs, 57.3 (1.4) kg, 163.7 (1.0) cm, and 49.6 (0.8) mL·kg⁻¹·min⁻¹). One group ceased their training program for 15 days (CT, n=7) and one group maintained their training program (MT, n=8). The subjects were tested at day 0, 5, 10, and 15 to monitor body mass (kg), VO₂max (mL·kg⁻¹·min⁻¹), maximal heart rate (HR, bpm), cardiac output (Q, L·min⁻¹), stroke volume (SV, mL·beat⁻¹), arterial venous oxygen difference (a-v O₂ difference, mL·lOOmL⁻¹) and plasma concentration (PC, mL·lOOmL⁻¹). Body composition (SOS, mm) was examined at day 0 and day 15 and a running performance task (2400 m) was tested before day 0 and at day 16 of the study. Q, SV, and a-v O₂ difference were analysed via the CO₂ rebreathing method as described by Jones (1988). No significant changes in any of the variables were found at day 5. Ten days of no training resulted in a significant decrement in VO₂max of 3.8 mL·kg⁻¹·min⁻¹ in group CT. After fifteen days of no training, VO₂max was still significantly lower (p < 0.05) in comparison to the MT group. No significant changes were found in body mass, body composition, Q, SV, HRmax, a-v 02 difference, and PC after 15 days of no training. Running times increased significantly by 18.4 (7.1) seconds after 15 days which corresponded to the approximate 7. 8% mean decrease in VO₂max mL·kg⁻¹·min⁻¹. These findings suggest that in female runners, performance decrements found after 15 days of CT are likely due to declines in VO₂max.en
dc.format.extent71 pages
dc.identifier.urihttps://hdl.handle.net/1828/17670
dc.rightsAvailable to the World Wide Weben_US
dc.titleThe Effect of cessation of training on selected physiological and performance variables in female runnersen_US
dc.typeThesisen_US

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