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Kim Kardashian flaunted her toned physique as she gave her fans a closer look at her fitness regime at the gym for 'leg day' on her Instagram stories on Tuesday. 

The SKIMS founder, 43 - who put on a busty display at Michael Rubin's 4th Of July bash - uploaded both clips and photos as she appeared to use a form of muscle stimulation on her upper thighs. 

The mother-of-four notably works closely with celebrity personal trainer, Seneda Greca - who is also known for working with other stars such as supermodel Miranda Kerr. 

In the first reel, Kim filmed only her legs as she stretched out on a mat with patches placed around each of her thighs that were seemingly hooked up to a stimulator machine. 

'How we do our leg days now @seneda.grace,' the TV personality added in text towards the bottom of the video. 

Kim Kardashian, 43, flaunted her toned physique as she gave her fans a closer look at her fitness regime at the gym for 'leg days' on her Instagram stories on Tuesday

Kim Kardashian, 43, flaunted her toned physique as she gave her fans a closer look at her fitness regime at the gym for 'leg days' on her Instagram stories on Tuesday

The SKIMS founder uploaded both clips and photos as she appeared to use a form of muscle stimulation on her upper thighs

The SKIMS founder uploaded both clips and photos as she appeared to use a form of muscle stimulation on her upper thighs

'Yeah, you can go a little higher,' the reality star could be heard saying as her personal trainer continued to turn a knob on the stimulator. 

'S***,' Kim expressed after a few seconds passed and her muscles began to tighten. 'Four is good. I'll start squatting and move it up to six.' 

Electrical stimulation is a form of treatment that can be used in physical therapy and also 'helps strengthen muscles, block pain signals, and improve blood circulation,' per Very Well Health.  

The next clip showed the businesswoman filming herself in the reflection of a mirror while surrounded by gym equipment. 

She wore a fitted, brown sports bra as well as a pair of matching shorts from Seneda's own clothing brand: Zentoa. According to the official website, the seamless shorts are currently priced at $59.99. 

Kim also slipped into a pair of open-toed, comfy slippers while her dark locks were pulled back and styled into a simple ponytail. 

'All right guys, so this is how I'm doing my workouts as we've been building my thighs,' she explained to her 361 million followers.

'I don't know if you guys have noticed. I've gained some healthy weight, especially in my thighs. And this is what we've been doing.'

In the first reel, Kim filmed only her legs as she stretched out on a mat with patches placed around each of her thighs that were seemingly hooked up to a stimulator machine

In the first reel, Kim filmed only her legs as she stretched out on a mat with patches placed around each of her thighs that were seemingly hooked up to a stimulator machine

The next clip showed the businesswoman filming herself in the reflection of a mirror while surrounded by gym equipment

The next clip showed the businesswoman filming herself in the reflection of a mirror while surrounded by gym equipment

Lastly, the star posed for another picture inside the gym during the fitness routine and penned, 'to @seneda.greca for making me do such heavy weights! But at least I look cute in my @zentoa fit'

Lastly, the star posed for another picture inside the gym during the fitness routine and penned, 'to @seneda.greca for making me do such heavy weights! But at least I look cute in my @zentoa fit'

She also wrote in text towards the bottom: 'Our leg days are working! We've been on a mission @seneda.greca.' 

The Kardashians star then shared a close up snap of her upper thighs as she sat at a weight machine with the patches still placed on her thighs. 

Lastly, the star posed for another picture inside the gym during the fitness routine and penned, 'to @seneda.greca for making me do such heavy weights! But at least I look cute in my @zentoa fit.' 

Kim often shares a look at her grueling workout sessions on Instagram, and a few months earlier in May, she could be seen at the gym doing squats and also using weights.

At the time, she was also using the WeRise App - which was founded by her personal trainer, Seneda Greca. 

In one reel, the media personality wrote, 'I clearly don't always listen to her lol,' referencing to Greca when it came to certain workout instructions. 

Earlier this month, Seneda made an appearance on Jay Shetty's On Purpose podcast where she gave tips for staying fit and keeping to a routine. She also gushed about Kim's dedication when it comes to working out. 

'She shows up on time and is ready to go, never does she complain or back away from something.' 

Kim often shares a look at her grueling workout sessions on Instagram, and a few months earlier in May, she could be seen at the gym doing squats and also using weights

Kim often shares a look at her grueling workout sessions on Instagram, and a few months earlier in May, she could be seen at the gym doing squats and also using weights

Earlier this month, Seneda made an appearance on Jay Shetty's On Purpose podcast where she gave tips for staying fit and keeping to a routine. She also gushed about Kim's dedication when it comes to working out

Earlier this month, Seneda made an appearance on Jay Shetty's On Purpose podcast where she gave tips for staying fit and keeping to a routine. She also gushed about Kim's dedication when it comes to working out

In regards to working with celebrities, Seneda explained, 'I believe in working with these people that have such high influence because of the impact that they will have on the larger population.' 

'Through them I can send a message of strength for women, so strength is beautiful, strength is confidence - whatever that looks like.' 

She continued, 'Strength doesn't have to to come with big muscles but if I can send that message of strength to especially young women than my purpose is fulfilled.'  

On how to kickstart a fitness journey, the trainer - who currently boasts 5.5 million Instagram followers - stated, 'I always say start small. One step at a time.' 

She also said that starting out with five minute workouts is an important step. 'That's what's key about making fitness a long a lifelong activity, because I see it as not a sprint - it's a lifelong marathon...' 

Along with focusing on her health and fitness, Kim has been filtering through a busy schedule. 

Earlier this month, she notably made an appearance at Michael Rubin's star-studded, Fourth of July bash in the Hamptons. 

She wowed in a plunging, white halter-styled top as well as a fitted, white maxi skirt for the festivities. The beauty was also spotted with younger sister, Khloe Kardashian, and close friend, La La Anthony. 

Kim is also focused on her brands, including SKKN by Kim - and recently launched a variety of lip glosses and highlighters

Kim is also focused on her brands, including SKKN by Kim - and recently launched a variety of lip glosses and highlighters

Kim is also focused on her brands, including SKKN by Kim - and recently launched a variety of lip glosses and highlighters

During an interview with Harper's Bazaar which was published on Wednesday, she teased that her skincare and beauty brand will soon drop a fragrance line

During an interview with Harper's Bazaar which was published on Wednesday, she teased that her skincare and beauty brand will soon drop a fragrance line

During an interview with Harper's Bazaar which was published on Wednesday, she teased that her skincare and beauty brand will soon drop a fragrance line. 

'Fragrance is definitely coming! We are really taking our time to make sure the packaging, the scents and the entire experience is perfect and exactly what you would expect,' she revealed to the outlet. 

In regards to the latest makeup product launches, the star later explained, 'I want SKKN by Kim to be everything that completely makes you look like your best self, starting with your skin and everything that makes skin its best self.' 

'I love this lip gloss formula - it's lightweight and packed with natural oils to hydrate lips, leaving them smoother and softer.'