Short bursts of biking make older men less tired and calmer inside
Three-week sprint interval training (SIT) reduces cell-free DNA and low-frequency fatigue but does not induce VO2max improvement in older men
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Older men did 3 weeks of super short, super hard bike sprints. Their bodies showed less stress signal in blood and bounced back faster from muscle tiredness. But their heart/lung fitness didn’t get better — unlike young men, who got stronger.
Surprising Findings
Older men’s aerobic capacity (VO2max) didn’t improve after 3 weeks of SIT, while young men’s did—even though both groups did identical workouts.
Everyone assumes high-intensity training boosts cardio fitness universally. This study shows aging may block that adaptation, challenging the 'one-size-fits-all' fitness model.
Practical Takeaways
Older adults can do 4–6 rounds of 30-second all-out bike sprints (with 4-min rest) 3x/week to reduce muscle fatigue and cellular stress—even if they don’t get faster.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Older men did 3 weeks of super short, super hard bike sprints. Their bodies showed less stress signal in blood and bounced back faster from muscle tiredness. But their heart/lung fitness didn’t get better — unlike young men, who got stronger.
Surprising Findings
Older men’s aerobic capacity (VO2max) didn’t improve after 3 weeks of SIT, while young men’s did—even though both groups did identical workouts.
Everyone assumes high-intensity training boosts cardio fitness universally. This study shows aging may block that adaptation, challenging the 'one-size-fits-all' fitness model.
Practical Takeaways
Older adults can do 4–6 rounds of 30-second all-out bike sprints (with 4-min rest) 3x/week to reduce muscle fatigue and cellular stress—even if they don’t get faster.
Publication
Journal
European Journal of Applied Physiology
Year
2023
Authors
Ema Juškevičiūtė, E. Neuberger, N. Eimantas, T. Venckūnas, S. Kamandulis, Perikles Simon, M. Brazaitis
Related Content
Claims (6)
Doing just a few minutes of super-intense bursts of exercise—like sprinting or jumping—several times a day can make you stronger and better at using oxygen, even if you’ve been totally inactive.
Older men in their 60s and 70s didn’t get better at using oxygen during exercise after three weeks of intense sprinting, but younger men did—so aging might make it harder for your body to improve aerobic fitness from short, intense workouts.
After a super intense sprint workout, your body releases a tiny bit of DNA into your blood — and the more tired your muscles feel afterward, the more DNA shows up. This could mean that measuring this DNA helps doctors tell how hard your muscles were pushed.
After just three weeks of short, intense bursts of running, older men had less of a biological marker in their blood that signals stress or damage in the body—this might mean their bodies are under less strain as they age.
After just three weeks of short, intense bike or sprint workouts, older men between 63 and 72 got better at bouncing back from muscle tiredness caused by repeated hard exercise — their muscles recovered faster and felt stronger afterward.