Longer sprint intervals can improve muscle oxygen utilization compared to shorter intervals
Briefly

Sprint interval training (SIT) optimization can significantly benefit modern populations by tailoring training regimens using duration and repetitions for improved physiological responses.
Researchers from Waseda University conducted SIT experiments to showcase its benefits led by Dr. Takaki Yamagishi and Professor Yasuo Kawakami, aiming to enhance athletic performance and well-being.
Read at ScienceDaily
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