What question did this study set out to answer?

To investigate changes in heart rate and blood pressure variability at supine rest and during a head-up tilt test induced by heavy training and overtraining in female endurance athletes.

January 1, 2000International Journal of Sports Medicine

Heart Rate and Blood Pressure Variability During Heavy Training and Overtraining in the Female Athlete

View Full Paper

Ask AI

Bookmark

Why the study?

Does heavy training and overtraining alter heart rate and blood pressure variability in female endurance athletes?

Population

15 young female endurance athletes (9 in experimental group, 6 in control group)

Comparison

Heavy training vs Control athletes with corresponding training…

Design

Cohort

Follow-up

6-9 weeks

Authors

UUusitaloResearch Institute for Olympic Sports UUusitaloTampere University Hospital RRuskoResearch Institute for Olympic Sports

Discussion

Member takes

Implication

Heavy training may heighten sympathetic modulation in female athletes; leaves open utility for overtraining monitoring and needs prospective trials.

Key Points

To investigate changes in heart rate and blood pressure variability at supine rest and during a head-up tilt test induced by heavy training and overtraining in female endurance athletes.
Assessed 15 female endurance athletes, divided into an experimental training group (ETG, n=9) and a control group (n=6) over a 6–9 week intervention.
ETG increased training volume by 125% at 70–90% VO2max and by 100% at <70% VO2max, while controls increased volume by 5% and 10%, respectively.
Measured VO2max, R-R interval (RRI) variability, blood pressure variability, and orthostatic responses via a head-up tilt test.
In 5 overtrained athletes, VO2max decreased from 53.0 ± 2.2 to 50.2 ± 2.3 ml·kg⁻¹·min⁻¹ (p < 0.01), while overall group VO2max did not change.
In the ETG, resting supine low-frequency power of RRI variability increased from 6 ± 1 to 9 ± 2 ms² × 10² (p < 0.05), and the 30/15 index decreased after assuming upright posture (p = 0.05).
Changes in VO2max correlated directly with changes in total power of standing RRI variability (r = 0.74, p < 0.05), while heart rate responses to prolonged standing varied individually among overtrained athletes.

Structured PICO

Does heavy training and overtraining alter heart rate and blood pressure variability in female endurance athletes?

Population

15 young female endurance athletes (9 in experimental group, 6 in control group)

Intervention

Heavy training (increased training volume at 70-90% VO2max by 125% and <70% VO2max by 100% over 6-9 weeks)

Comparator

Control athletes with corresponding training volume increases of 5% and 10%

Outcome

Changes in heart rate and blood pressure variability during supine rest and in response to head-up tiltsurrogate

Heavy training in female athletes increases cardiac sympathetic modulation during supine rest and alters baroreflex-mediated responses to upright posture.

Cite This Study

Uusitalo et al. (2000) studied this question.

synapsesocial.com/papers/6a8174139e5e8e4efb4d5c8f https://doi.org/10.1055/s-2000-8853

View Full Paper

Ask AI

Bookmark

Implication

Heavy training may heighten sympathetic modulation in female athletes; leaves open utility for overtraining monitoring and needs prospective trials.

Heart Rate and Blood Pressure Variability During Heavy Training and Overtraining in the Female Athlete

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Heart Rate and Blood Pressure Variability During Heavy Training and Overtraining in the Female Athlete

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider