January 1, 1992Journal of Cardiopulmonary Rehabilitation
A Function of Pretraining Concentration
Key result
Endurance training lowers total cholesterol, with higher baseline levels predicting greater reductions.
- r = -0.512
- P<0.05
- n=542
Why the study?
Previous endurance training studies lacked sufficient sample size to adequately assess changes in total cholesterol concentrations after training as a function of pretraining values.
Does endurance training reduce total cholesterol concentrations in apparently healthy adults?
Comparison
Pretraining total cholesterol concentrations and changes after endurance training
Design
Retrospective cohort study
Follow-up
16 to 20 weeks
Authors
Discussion
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Implication
May support endurance training for cholesterol reduction in healthy adults; leaves open causality pending randomized confirmation.
Study Design
Type
Cohort (n=542)
Structured PICO
Does endurance training reduce total cholesterol concentrations in apparently healthy adults?
P
Population
542 apparently healthy adults aged 20 to 75 years who completed 16 to 20 weeks of endurance training.
E
Exposure
16 to 20 weeks of endurance training consisting of individualized aerobic exercise (walking, walk-jog, or running) at approximately 75% to 85% maximal heart rate reserve for 30 to 50 minutes four times per week.
O
Outcome
Changes in total cholesterol concentrations (ΔTC) subsequent to endurance exercise training.surrogate
Main Result
Effect estimate: r = -0.512
p-value: p=<0.05
Endurance training significantly reduces total cholesterol levels, with the magnitude of reduction being dependent on pretraining cholesterol concentrations.
Cite This Study
Whaley et al. (1992) conducted a cohort in Healthy adults (n=542). Endurance training vs. Pretraining baseline was evaluated on Change in total cholesterol concentrations (ΔTC) (r = -0.512, p=<0.05). Endurance training significantly reduced total cholesterol, with higher pretraining cholesterol levels predicting greater reductions (r = -0.512, P < 0.05).