Se vår nyeste video om "Secrets of Abdominal Training"
In english: See our newest video about "Secrets of Abdominal Training".
In english: See our newest video about "Secrets of Abdominal Training".
Skrevet av Fred Koch kl: 15:46
Every human movement, whether simple or complex, is a sequence of skeletal muscle contractions woven seamlessly together by means of a complex inter-play between the body's muscles and the nervous system.
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