Fitness Trainer Niki Klasnic in Two-Piece Workout Gear Shares "Deep Core Workout"

Niki Klasnic is a very successful fitness trainer. She shares a lot of her workouts and fitness tips on Instagram. This has given her a large following. Recently, Klasnic shared a video on her page of herself doing core exercises with weights. She captioned the post, “As with so many things, it’s HOW you do it that makes the difference in the results. That’s something that is so important with core work in general.”

1. She Does Core Workouts

As you can see from her post, Klasnic likes to do core workouts to stay in shape. She shares a lot of core exercises on her page. According to The Mayo Clinic, this is very beneficial. “Core exercises train the muscles in your core to work in harmony. This leads to better balance and steadiness, also called stability. Stability is important whether you're on the playing field or doing regular activities. In fact, most sports and other physical activities depend on stable core muscles.”

2. She Uses Weights

Niki Klasnic/Instagram

Klasnic is seen using weights in her Instagram post. This can be very beneficial. The Mayo Clinic reports, “By stressing your bones, strength training can increase bone density and reduce the risk of osteoporosis. Strength training can help you manage or lose weight, and it can increase your metabolism to help you burn more calories. Strength training may enhance your quality of life and improve your ability to do everyday activities.”

3. She Takes Her Time

Niki Klasnic/Instagram

In her Instagram post’s caption, Klasnic talked about the importance of taking your time when doing exercises, especially core exercises. “It’s easy to fly through these and get just about nothing out of it. Alternatively, when we drop in, slow down and truly take the time to make sure our core is driving the exercise and stabilizing through the movement, something that seems really simple can be challenging.”

4. She Does Planks

Niki Klasnic/Instagram

Klasnic likes to do planks to stay in shape. In her Instagram post, she is seen doing side plank dips. NASM states that these can be very beneficial. “The side plank is an excellent exercise for activating and strengthening your Transverse Abdominis (deep abdominal muscle that supports your spine), but also your internal and external obliques, gluteus medius (outer hip muscle), infraspinatus, and teres minor (rotator cuff musculature), and the quadratus lumborum (muscle that supports the pelvis and spine). These are muscles that aren’t often challenged during daily life activities. An exercise like the side plank is a great way to target these often-underused muscles and create greater stability and strength in these above areas.”

5. She Does Cardio

Klasnic likes to do cardio exercises to stay in shape. She shared this post on Instagram of herself doing a cardio workout. Klasnic captioned it, “Sweaty sweaty cardio for you👌 the weights used here are light! Generally I recommend anywhere from 2 to a max of 10 lbs depending on the exercise. They’re not meant to be a strength challenge. Move with intention and land lightly here! You want to only move as quickly as you can keep good form, control and that light landing.”

Jena Sims Koepka is working on her core – in her exercise clothes. In a new social media post the golf wife shows off her strength and amazing body during an exercise circuit. “Cove + Core + Pulling,” she captioned the Instagram video, demonstrating every move in the video. How does she approach diet, fitness, and self-care and what is her core workout? Here is everything you need to know about her lifestyle habits.

1. F45 Workouts

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Jena is a fan of a popular workout method. “My favorite type of workout is F45,” she told FOX. “It’s just a 45-minute class. And I think I like it so much because they play amazing music and it’s so loud.”

2. Weight Lifting

“I’m not a calm, soothing Pilates, yoga princess. I’m like, ‘Scream at me.’ I want to be dripping sweat,” continued Sims. “I want loud music, heavy weights. For my body type, I like to lift weights because I don’t need to do a lot of cardio. I find that lifting weights has been the most beneficial,” she told Fox. “I've been working on just upping my weights a little bit,” she added to Daily Mail. “I can get into this sweet spot and get kind of in a plateau of working out, so I upped my weights after seeing her video because I was so impressed by what she did with her fitness. I'm trying to lift heavier. Trying to build a booty.”

3. Clean Eating

To get in shape for her Sports Illustrated photoshoot, Jena didn’t diet, “ all I'm doing is just eating as clean as I can, but I'm still splurging,” she told Daily Mail. “Like, I had four dinner rolls last night at this charity event as well as my meal.”

4. Pure Barre

Jena also likes to “mix it up” when it comes to exercise. She loves Pure Barre classes, a fusion of yoga, Pilates, and ballet and a “full body, low impact workout” for everybody, according to the brand.

5. Here is Her Core Workout

Here is her latest workout, “such a good series to work the pull muscles and the ABS,” she says.

1. roll up w/ leg extended
2. tailbone raises w/ ball between ankles and arms overhead
3. plank rows
4. assisted band pull ups

Madeline Custer, a dedicated fitness expert and influencer, is all about quality workouts and balanced nutrition. Recently, she shared a video on Instagram of her favorite core exercises, encouraging her followers to try moves like Superman, butterfly sit-ups, and dead bugs. “If #weeklymovesworkouts is your program of choice, you’ll be seeing this one in tomorrow’s workout,” she captioned, sparking excitement for the next session. Custer’s approach isn’t just about working hard—it’s about working smart, whether she’s focusing on deep core exercises or fueling up with protein-packed meals. Here’s a closer look at the habits that keep her in peak form.

1. She Does Core Workouts

In her Instagram post, Custer is seen doing core exercises. The Mayo Clinic says that it is extremely important to do workouts like these. “Your core is the central part of your body. It includes your pelvis, lower back, hips and stomach. The stomach muscles sometimes are called abs. Core exercises train the muscles in your core to work in harmony. This leads to better balance and steadiness, also called stability. Stability is important whether you're on the playing field or doing regular activities.”

2. She Focuses On Quality Workouts

Madeline Custer/Instagram

For Custer, working out means quality over quantity. Especially when it comes to core workouts. Custer talked about this in her post’s caption. “Once upon a time, I would train core up to 3 times a week. I’d do so many different exercises and often with very little intention or rationale behind my sessions. I now solely focus on deep core exercises and do less than half the amount I used to and place the majority of my focus on properly engaging my core during OTHER LIFTS 💪🏽”

3. She Does Workouts Until She Can’t

Custer shared her secrets to building muscle in the caption of this Instagram video. She says that she does some workouts until she can’t anymore. “Take your sets close to muscular failure! If it’s a well selected exercise that you have a good mind to muscle connection with, the rep range can vary a bit and still be effective! Combine the weights YOU have + number of reps it takes you to get to failure and the stimulus has been achieved ✅”

4. She Strength Trains

Madeline Custer/Instagram

In the previous Instagram video, Custer is seen using dumbbells. Strength training has a lot of benefits. ACE Fitness says, “Strength training with heavy weights improves muscle definition. Muscle definition occurs as the result of muscles remaining in a state of semi-contraction and heavy strength training recruits the larger type II muscle fibers responsible for a muscle’s appearance.”

5. She Eats Enough Protein

Custer makes sure to incorporate protein into her diet. She shared this video on Instagram of herself making chicken salad. Custer captioned it, “BUSY GIRLS NEED PROTEIN. LIKE THE POST ❤️and comment ‘LUNCH’ 🍗for the recipe that has been making my weekends so easy and delicious with a fall twist!….But mostly, 130-140 grams of protein clicks away so fast when you have a plate template in mind. Mine is usually 25-30% lean protein, 25-30% complex carbs, then almost the rest of the plate with fruits and veggies with some awesome supplementary fats taking up about 15%. Back to chicken salad — thanks @erinliveswhole for the classic version that I’ve tweaked a bit! — I’ve been eating with pop corners chips, on Hawaiian rolls, rice cakes, by the spoonful.”