Push-ups, even when performed with your knees on the ground, are one of the best exercises to strengthen and sculpt your arms and upper back.  This variation that involves bending your elbows behind you and moving down and up very slowly is intense, and targets the triceps so you'll tone your upper arms even faster!

• Begin in plank position with the arms and body straight, shoulders over the wrists.  Keep the core engaged.  If you need to, go ahead and rest your knees on the ground.
• Bend the elbows behind you and count to five as you slowly lower your chest to the floor.  Keep your upper arms tight to your body so your elbows are against your ribs on both sides.
• Slowly straighten the arms, counting for another five, coming back to plank position.
• This counts as one rep.  Do as many reps as you can with correct form.

Britney Spears is at it again, hanging out upside down on her hands in this gorgeous handstand variation.  It's part scorpion and part split!  If you've ever tried doing a handstand against the wall, you know how challenging it is and a great workout for your upper body.  Britney is so strong and flexible — it's inspiring us to try!

Adding resistance is the perfect way to take a workout from good to downright excellent, and with the help of travel-friendly equipment like mini bands, it's hard to find a reason to not add it, right?

These looped versions of classic resistance bands usually come in sets of four with varying levels of difficulty — light, medium, heavy, x-heavy — so it's easy to gauge just how much of a challenge you're adding.  If you're not sure where to start, don't worry!  We've rounded up five feasible HIIT workouts you can try, courtesy of some of the most popular Latina fitness influencers on Instagram, including Puerto Rican trainer Idalis Velazquez.  Whether you're working your glutes or doing a full-body circuit, keep scrolling to try them out.  Then, crank up our workout playlist.

Total Body

Core

Booty

Outdoor

Shop For Your Own Set of Mini Bands

SKLZ Mini Resistance Bands ($20)

Belus Set of Four Exercise Resistance Bands With Carry Bag and eBook ($14, originally $25)

Sports Research Sweet Sweat Mini Loop Bands ($15)

Just when we thought we were excited to tackle our fitness New Year's resolutions, we saw this deer who was so eager to start, he busted through a gym's entrance for a quick two-minute workout.  According to video footage from a Gold's Gym location in Anderson, SC, a deer broke through the gym's window and ran through the facility, startling muscular clients, but also impressing everyone with his speedy moves.

"He thought we said a buck could join, but it's a buck to join," the gym joked on its Facebook page.  The deer put on quite the show, hurdling over weights and machines like a gold medal Olympian, but apparently he didn't like what he saw because he was in and out of the gym very quickly.  Luckily, no one was hurt while the deer turned the gym into an obstacle course, and it was reported that the deer exited through the window he initially broke in through.

Watch the video above for some pre-New Year's motivation, and then, find out why you should follow the deer and start your resolutions now!

Too tired to run outside or even walk to your car to drive to the gym?  Do this four-move cardio workout that will have your heart pumping and your muscles burning.

Directions:  Complete this workout five times.  Explanations of how to perform each exercise are below.  Have fun!

30 Air Squats
15 Plank Jacks
30 Air Squats
15 Frogger Hops
30 Air Squats
15 Mountain Climbers

Air Squats

• Begin with your feet slightly wider than hip-width apart and toes pointed slightly outward.
• Keeping your weight in your heels, sit back into your deep squat as you raise your arms overhead.
• Return to standing while lowering your arms to your sides.  This completes one rep.
• Do 30 reps.

Plank Jacks

• Begin in the plank position, with your shoulders over your wrists, your body in one straight line, and your feet together.
• Like the motion of jumping jacks, jump your legs wide apart and then back together to complete a rep.  Jump as quickly as you want, but keep your pelvis steady and don't let your booty rise toward the ceiling.
• Do a total of 15 reps.

Air Squats

• Complete another 30 reps.

Frogger

• Begin in a plank position.  Jump your feet to the outside of your hands, coming into a deep squat and keeping your hands on the floor.
• Jump your feet back to a plank.
• Do 15 jumps.

Air Squats

• Last set of 30 reps.

Mountain Climbers

• Come back into plank.  With your core engaged, bring your right knee forward under your chest, with the toes just off the ground.  Return to your basic plank.  Switch legs, bringing the left knee forward.
• Keep switching legs and begin to pick up the pace until it feels like running in place in a plank position.
• Do 15 reps.