运动时间 29：23 分钟

运动工具：2个哑铃

• Dumbbell floor press if you can’t do it try using lighter weight and be sure not to lift your lower back off the floor and keep the abs constantly tight
• Crunch cross outstretched leg ; Never lift your lower back off the floor and switch side ,Don’t use the resting arm to help
• Spine stretching ; ( double knee to chest)
• Twist on the ground ; if you can’t do it try resting your lower back on the floor and keep only shoulders raised be sure only rotate your torso

注意：无