in the hormone relaxin, which prepares your pelvis for the delivery).One study concluded that women who run during pregnancy are not at any greater risk of injury but, all the same, you should be cautious, especially when running on uneven ground. And be aware
WHY? Some swimmers make the mistake of allowing their whole arm to rotate fully in a ‘windmill’ motion. Another common mistake is to bend the elbow but let your arms go too wide. To avoid this, practise swimming with an exaggerated high elbow position when your arm