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\title{Science AMA Series: I'm Martin Gibala, a professor at McMaster
University in Hamilton, Ontario. My new book, The One-Minute Workout,
considers the new science of time-efficient exercise to promote health
and fitness. AMA!}



\author[1]{Martin_Gibala }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 24, 2026}


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\begin{abstract}
Hi Reddit! I'm Martin Gibala, PhD, professor and chair of the
kinesiology department at McMaster University in Hamilton, Ontario. I
conduct research on the physiological and health benefits of interval
training and how this time-efficient exercise method compares to
traditional endurance training. In my decades of study in this field,
I've conducted extensive research on the science of ultralow-volume
exercise and time-efficient workouts. Inspired by my own struggle to fit
regular exercise into a busy schedule, I set out to find the most
effective protocols that take up the smallest amount of time, while
still offering the benefits of a traditional session at the gym. It
became clear that short, intense bursts of exercise are the most potent
form of workout available. One of my recent studies, published in PLOS
One, found that sedentary people derived the benefits of 50 minutes of
traditional continuous exercise with a 10-minute interval workout that
involved just one minute of hard exercise. Study participants who
trained three times per week for twelve weeks experience the same
improvements in key markers of health and fitness, despite a five-fold
lower exercise volume and time commitment in the interval group. My new
book, The One-Minute Workout, distills complex science into practical
tips and strategies that people can incorporate in their everyday lives.
It includes twelve interval workouts, all based on scientific studies,
that can be applied to a wide range of individuals and starting fitness
levels. From elderly and deconditioned people who are just beginning an
exercise regimen to athletes and weekend warriors, there is an interval
training protocol that can boost health and performance in a
time-efficient manner. Ask me anything about the science of exercise and
in particular how to incorporate time-efficient training strategies into
your day. Signing out for now! Thank you so much for having me and for
all your great questions.%
\end{abstract}%



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