Relative Energy Deficiency in Sport (RED-S) characterizes a range of negative health and performance outcomes that result from chronically low energy availability. RED-S concerns high performance junior and senior athletes across Canada and has a prevalence rate of 3-60%. Our ability to assess and diagnose RED-S remains poor. Accordingly, we aim to create the best parameters to diagnose and manage RED-S; along with information of the prevalence and severity across Canada and globally. These outcomes are expected to have a significant positive impact on the health and performance of Canadian athletes in preparation for the Olympic Games in 2022 and beyond.
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REDS clinical assessment tool and REDS risk score
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Menstrual function in females
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Triiodothyronine concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Estrogen concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Testosterone concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Luteinizing hormone concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Follicle-stimulating hormone concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Sex-hormone binding globulin concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Hemoglobin concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Ferritin concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Serum iron concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Total iron binding capacity
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Iron saturation
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Total cholesterol concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
LDL cholesterol concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
HDL cholesterol concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Triglycerides concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Bone mineral density
Timeframe: Baseline
Resting metabolic rate
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Aerobic capacity
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Strength
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Insulin like growth factor 1 concentrations
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Resting heart rate
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Blood pressure (systolic and diastolic)
Timeframe: Baseline and possibly change after 6 months for a subset of athletes
Bone stress injury history
Timeframe: Baseline and possibly change after 6 months for a subset of athletes