RED-S in Women Rowers

She lost her period two years ago and thought it was normal for female athletes. It is not. Amenorrhea is a warning sign that energy availability has dropped below the threshold her body needs for reproductive function — and if reproductive hormones are compromised, so are bone density, immune function, metabolic rate, and cardiovascular health. Every system is paying for the energy she is not consuming. Flowbase RED-S Screening HEALTH FIRST Automated screening for RED-S warning signs with clinical referral guidance. RED-S Warning Sign Cascade Low energy → Menstrual disruption → Bone loss → Multi-system impairment < 30 kcal/kg FFM/day Irregular or absent periods Declining 10 systems impaired

The updated IOC consensus on RED-S (Mountjoy et al., 2018) expanded the former Female Athlete Triad concept to recognize that energy deficiency impairs not just menstrual and bone health, but also metabolic rate, immunity, protein synthesis, cardiovascular function, and psychological wellbeing. Female rowers in weight-class events face compounded risk due to chronic energy restriction layered on top of high training demands. ∧ Flowbase RED-S in Women RowersRelative Energy Deficiency in Sport disproportionately affects female rowers. It is not an eating disorder — it is a physiological state that impairs 10 body systems simultaneously. Noah Wickliffe, M.S. · Founder, MyoSport Inc. · 7 min read

Ackerman et al. (2019) demonstrated that female athletes with functional hypothalamic amenorrhea (absence of periods due to low energy availability) had 10% lower bone mineral density than eumenorrheic teammates, with a stress fracture incidence 4× higher. In rowing — where the ribcage is under repetitive loading stress — low bone density translates directly to rib stress fractures, one of the sport's most common injuries. Treatment requires increasing energy availability above 45 kcal/kg FFM/day, which typically means adding 500–800 kcal/day to current intake. Return of menstrual function is the primary recovery marker and may take 3–12 months. All female rowers — especially those in lightweight programs — should be screened for RED-S using the RED-S CAT (Clinical Assessment Tool) at least annually. “A missed period is not a sign of athletic dedication — it is a red flag that your body is shutting down non-essential functions to survive. Listen to the signal.” — Noah Wickliffe, Flowbase Performance Series 4×Higher stress fracture rate in amenorrheic athletes 10%Lower bone density with menstrual dysfunction 45 kcalPer kg FFM target for RED-S recovery

The Flowbase AI Coach screens for RED-S warning signs including menstrual irregularity, declining performance despite maintained training, recurrent injury, and low energy availability. It provides clinical referral guidance and tracks recovery metrics once treatment begins. The AI Coach serves as an early-warning system for RED-S — catching the signs before irreversible bone loss or long-term hormonal damage occurs. Screen for RED-S Confidential RED-S screening with clinical guidance and recovery tracking.