Our core is important: it helps support our spine and keep us upright. Why not show it some love? These 4 exercises are going to not only work your back, shoulders and arms but really focus your stabilizer muscles. Add these to your strength training days and you'll see a huge difference in no time! Pinched for time? You can totally do these on their What You Need:

• Hiit bar
• mat
• your sexy self
• Weighted vest

The Low Down: Go for 12-15 reps per exercise. 20-30 seconds rest after each. 2+ rounds  

Mountain Climbers

[caption id="attachment_70154" align="alignnone" width="800"] Begin in high plank, hand directly under shoulders and butt down[/caption] [caption id="attachment_70155" align="alignnone" width="800"] Keeping your butt level, lift one knee to your chest[/caption] [caption id="attachment_70156" align="alignnone" width="800"] Place your foot back to starting plank. Repeat with other leg. Both legs = 1 rep[/caption]

Full Burpee

[caption id="attachment_70157" align="alignnone" width="800"] Start by pencil jumping in to the air, feet together.[/caption] [caption id="attachment_70158" align="alignnone" width="800"] Land with knees soft and bent, both heels on the ground[/caption] [caption id="attachment_70159" align="alignnone" width="800"] Place both hands on the ground shoulder width apart[/caption] [caption id="attachment_70160" align="alignnone" width="800"] Jump back to high plank position without locking your elbows! Pull up through those arms using your muscles[/caption] [caption id="attachment_70161" align="alignnone" width="800"] Keeping your elbows directly at your side, bend to a tricep pushup[/caption] [caption id="attachment_70162" align="alignnone" width="800"] Jump your feet back to your hands. Repeat exercise from here starting with pencil jump[/caption]

Kayaks

[caption id="attachment_70163" align="alignnone" width="533"] Stand with your feet slightly apart. Make your your shoulders are rolled back and down and your butt is squeezed underneath you to engage your core. Arms begin bent at a 90 degree angle in front of you[/caption] [caption id="attachment_70164" align="alignnone" width="533"] Lock and load that core and "paddle" the bar to one side.[/caption] [caption id="attachment_70165" align="alignnone" width="533"] Just like you would a boat, make a large swooping paddle motion to the other side. 1 paddle on each side = 1 rep[/caption]

Weighted Plank Side Raise

[caption id="attachment_70166" align="alignnone" width="800"] Begin in low plank position. Elbows should be directly under you shoulders, back flat and pelvis rotated under and up. Rest the weight between your forearms.[/caption] [caption id="attachment_70167" align="alignnone" width="800"] Grab the weight and rotate in to side plank position. Your arm should be bent slightly. Squeeze your shoulder blades together.[/caption] [caption id="attachment_70166" align="alignnone" width="800"] Return, with control, to low plank. Repeat facing opposite direction. Both directions = 1 rep[/caption]