TY - JOUR
T1 - Greater Relative First and Second Lactate Thresholds in Females Compared With Males
T2 - Consideration for Exercise Prescription
AU - Benítez-Muñoz, José Antonio
AU - Rojo-Tirado, Miguel Ángel
AU - Benito Peinado, Pedro José
AU - Murias, Juan M.
AU - González-Lamuño, Domingo
AU - Cupeiro, Rocío
N1 - Publisher Copyright:
© 2025 Human Kinetics, Inc.
PY - 2025/1
Y1 - 2025/1
N2 - Purpose: To investigate differences between females and males at lactate thresholds 1 (LT1) and 2 (LT2). Methods: Twenty-four female and twenty male participants performed an incremental cycle-ergometer test until exhaustion, where LT1 and LT2 were determined in each volunteer. Results: Power output at LT1 and LT2 was lower in females than in males (P < .001). In addition, power output relative to peak power was higher in females at LT1 and LT2 (P < .001). However, heart rate was higher in females than males at LT1 and LT2 (P = .008). Furthermore, the heart rate relative to maximal heart rate was higher in females compared with males at LT1 and LT2 (P = .002). Conclusion: Females and males may be in a different metabolic situation at the same percentage of maximum. This study helps to reduce sex bias in science, and future guidelines should consider establishing exercise prescription recommendations according to sex. Clinical Trial: NCT06104150.
AB - Purpose: To investigate differences between females and males at lactate thresholds 1 (LT1) and 2 (LT2). Methods: Twenty-four female and twenty male participants performed an incremental cycle-ergometer test until exhaustion, where LT1 and LT2 were determined in each volunteer. Results: Power output at LT1 and LT2 was lower in females than in males (P < .001). In addition, power output relative to peak power was higher in females at LT1 and LT2 (P < .001). However, heart rate was higher in females than males at LT1 and LT2 (P = .008). Furthermore, the heart rate relative to maximal heart rate was higher in females compared with males at LT1 and LT2 (P = .002). Conclusion: Females and males may be in a different metabolic situation at the same percentage of maximum. This study helps to reduce sex bias in science, and future guidelines should consider establishing exercise prescription recommendations according to sex. Clinical Trial: NCT06104150.
KW - LT
KW - heart rate
KW - power
KW - sex
KW - women
UR - http://www.scopus.com/inward/record.url?scp=85213718529&partnerID=8YFLogxK
U2 - 10.1123/ijspp.2024-0079
DO - 10.1123/ijspp.2024-0079
M3 - Article
AN - SCOPUS:85213718529
SN - 1555-0265
VL - 20
SP - 30
EP - 36
JO - International Journal of Sports Physiology and Performance
JF - International Journal of Sports Physiology and Performance
IS - 1
ER -