I was talking about this with cyclists regarding late race surges and sprints. Or just trying to "hang on" to the front pack so as not to be dropped. This is assuming you are not cardio / aerobically limited, or too drowning in lactate. Might be more useful in cycling than running, but i guess in tactical scenarios it might be useful.
Got various articles, but just use AI ba........
Yes, heavy Bulgarian split squat (BSS) strength training is highly effective at improving late-marathon durability and performance, specifically helping runners maintain pace and form after mile 20. By strengthening the muscles, tendons, and ligaments through unilateral load, BSS reduces late-race muscle breakdown, improves running economy, and mitigates injury risk.
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Here is how heavy BSS training improves late-marathon durability:
- Targets "Late-Race" Muscles: Running is fundamentally a series of single-leg hops. Bulgarian split squats build strength, stability, and control through the hips, knees, and ankles—the precise areas that fatigue and cause form breakdown (e.g., knee drop, hip instability) late in a race.
- Improves Injury Resilience: Every step in a marathon generates ground reaction forces 2–5 times body weight. Heavy BSS builds "armor" in the glutes (specifically the gluteus medius for hip stability), quadriceps, and hamstrings, protecting joints and tendons from overuse injuries like runner's knee or IT band syndrome.
- Corrects Imbalances: Because BSS forces each leg to work independently, it prevents the stronger leg from masking the weaknesses of the other, ensuring both legs can withstand the 26.2-mile load.
- Increases Energy Efficiency (Running Economy): Stronger muscles require less energy to maintain the same pace. Studies have shown that heavy strength training (like BSS) can improve running economy by 2–8%.
- Provides Eccentric Control: Performing heavy, controlled eccentrics (lowering phase) in the BSS builds tendon capacity, which is crucial for absorbing impact and prevents the typical late-race slowdown.
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