Deadlifts Before Cycling: Why Heavy Lifting Fails to Boost Endurance Performance

DeKalb, United States, Source:

The concept of Post-Activation Performance Enhancement (PAPE) has long been a staple in strength and conditioning protocols. Athletes frequently utilize heavy resistance exercises, such as squats or deadlifts, immediately prior to explosive movements like sprinting or jumping, under the assumption that the neural activation from the heavy lift will translate into superior power output. However, the application of PAPE strategies to endurance sports remains scientifically ambiguous. A recent study published in the journal Sports investigates whether acute hex-bar deadlift (HBD) exercise can enhance subsequent cycling performance and skeletal muscle oxygenation, challenging the universal applicability of this warm-up technique.

Researchers from Northern Illinois University and Aurora University conducted a randomized crossover trial involving twenty-five healthy young adults, comprising fifteen men and ten women. The primary objective was to determine if performing three sets of five repetitions at 70–80% of one-repetition maximum on a hex-bar deadlift would improve time-to-exhaustion during severe-intensity cycling compared to a dynamic stretching routine. The protocol included an eight-minute recovery period between the pre-exercise intervention and the cycling task, allowing for physiological stabilization while maintaining potential neural priming effects.

The findings revealed no significant difference in severe-intensity time-to-exhaustion between the HBD group and the dynamic stretching control group. Participants completed the cycling task in approximately 394 seconds after deadlifting and 381 seconds after stretching, a variance that was statistically insignificant. Furthermore, secondary physiological outcomes, including heart rate, arterial blood pressure, pulmonary oxygen uptake (V̇O2), and vastus lateralis muscle oxygen saturation (SmO2), showed no meaningful changes attributable to the deadlift condition. Kinetics of SmO2 and the area under the curve remained unchanged across both moderate and severe intensity efforts.

These results suggest that acute heavy lower-body resistance training does not confer an endurance advantage for cycling in healthy adults. Contrary to the initial hypothesis, the neural drive generated by the hex-bar deadlift did not enhance muscle oxygenation or tolerance to high-intensity aerobic effort. This indicates that while PAPE may be effective for power-dependent activities, it is likely ineffective for endurance-based modalities where metabolic efficiency and oxygen utilization are the limiting factors. Coaches and athletes should reconsider incorporating heavy deadlifts immediately before endurance sessions, as they may offer no performance benefit and could potentially induce unnecessary fatigue without the promised enhancement in muscular oxygenation.