We have all
experienced that post sprint panting as our body breathes out carbon dioxide
created during the anaerobic effort of the sprint. Most of us have been taught to “stand-up
straight and put your palms on the back of year head” and told to “stop bending
over”. The message is that it is
better to stand up and keep your hands on your head during recovery from hard
intervals.
However – is
this really true? The answer is a
resounding NO! A research study focused
on this question and examined the effects of two different recovery postures –
hands on head (HH) and hands on knees (HK) during high-intensity interval
training (HIIT).
The researches
look at college varsity soccer players who did four 4-minute running intervals
at 90-95% of maximum heart rate, with 3 minutes of passive recovery between
intervals. Key findings of the study
include:
1.
Improved
heart rate recovery with the HK (hands on knees) posture compared to HH (hands
on heads) posture.
2.
Great
tidal volume (amount of air moved in and out of the lungs) with HK compared to
HH.
3.
Increased
volume of carbon dioxide elimination with HK compared to HH.
The
researchers concluded that hands on knees posture allow for more efficient
recovery. The take home message is that
your natural instinct to bend over and put hands on your knees IS better! It allows your lungs to function much
better by expanding the ribcage.
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