* This work is fictional, and all persons appearing in it were 18 years of age or older and were filmed with their consent.
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This is the first heartbeat of Chinatsu, age 25.
She had a calm demeanor, and her short bob hairstyle, soft eyes with full under-eye bags, and beautiful features really came through. You can see how cute she is just by looking at the sample images. I don't think there are many people who can pull off a short bob as well as Chinatsu.
Lately, all the young women are so cute, I feel like I fall head over heels for the models every time I do a photoshoot (lol).
Also, because Chinatsu's breasts are small, her heartbeat was easier to hear, and when I compressed her chest, I could easily feel her pulse.
This time, we also took some electrocardiograms using an electrocardiograph. The combination of the beeping electronic sounds and the heartbeat during the electrocardiogram recording made it feel even more erotic.
Of course, we also perform echocardiograms as usual, so what we're doing is essentially a health checkup.
The content is,
Self-introduction and heartbeat
- Reactions to hearing heart sounds and heart sounds
- Heartbeat sounds when stepping up and down
- Heart sounds when chest is compressed
- Carotid artery pulse and heart sounds
Echocardiography and heart sounds
Electrocardiogram and heart sounds
Electrocardiogram and heart sounds while exercising with a bag over your head
- Heartbeat while doing squats
Electrocardiogram and heart sounds during masturbation
That is the case.
The video is 50 minutes and 31 seconds long.
During the initial self-introduction and heartbeat test, after the self-introduction, when you placed the stethoscope on Chinatsu's heart, we could hear her heart beating at approximately 80 BPM. This is about the average heart rate for women, and the heartbeat is easy to hear.
She didn't seem particularly nervous, but she was embarrassed by the idea of someone else hearing her heartbeat, and after the shoot she said, "It's more embarrassing than being seen naked." Indeed, in everyday life, there are very few opportunities to have your heartbeat listened to closely outside of a hospital.
Along the way, she answered questions such as, "Why did you decide to do this photoshoot?" and "Would you tell your boyfriend about this?"
When people listen to their own heartbeats, they often say, "It's surprisingly fast!" upon hearing their own heartbeat for the first time.
It seems Chinatsu expected things to be a little slower.
When the doctor places their hand directly on my chest, they seem to be able to feel my heartbeat slightly. They also change the position of the stethoscope, carefully placing it around the pulmonary artery, the aorta, and the apex of my heart, comparing which spot makes my heart sounds the best.
The way you hear the heartbeat changes depending on where you place the device, but the area around your left breast, where you've been placing it from the beginning, is definitely the easiest place to hear it.
When she drank the water, her heart rate quickened slightly the moment she swallowed. Incidentally, although it wasn't her heartbeat, her stomach rumbled after she drank the water, and she said, "They found out my stomach was rumbling!" with a look of embarrassment.
Finally, when we asked her to take a deep breath, there was a clear difference in her heart rate between inhaling and exhaling, indicating that Chinatsu's heart was functioning normally.
During the step-up exercise, we asked the participant to place a stethoscope over their heartbeat while performing the exercise, allowing us to listen to the gradual increase in their heart rate.
Chinatsu, who doesn't usually exercise, gradually increased the speed of her heartbeat, and in the last 30 seconds, when she ran at full speed, it accelerated even further, reaching about 125 BPM. You can imagine her heart valves opening and closing violently, about 1.5 times faster than normal, making a "thump-thump-thump-thump" sound.
Even the calm and composed Chinatsu, at the young age of 25, seems to experience this much heart rate during strenuous exercise. I'm sure her heart rate is probably this high even in her daily life, like when she runs up stairs.
While you were wearing the earphones, I was allowed to place the stethoscope on your chest, and I could hear your heart beating so fast through the stethoscope that I was secretly thrilled. Thank you.
Chinatsu-san also said, "It's really fast!", and was surprised by the intensity of the vibrations she felt when she placed her hand on her chest.
As expected of someone so young, taking deep breaths helped calm their heart rate quickly, and they then sat up on the bed. By this point, their heart rate had returned to almost normal, and when they lay down at the end, each beat was significantly slower than immediately after exercise.
When I compress the chest, I can feel the heart's movements as it tries to circulate blood, and in the video, you can see it twitching in time with the heartbeat.
Because her chest is small, the movement of her heart was clearly visible, and I could even determine the size of Chinatsu's heart. I applied quite strong pressure, and I felt that her heartbeat slowed down slightly the moment I released the pressure.
The pulsation of the carotid artery and the sound of the heart are such that the carotid artery moves firmly in time with the heartbeat, and it feels like something living is moving with a squishy, squirming sound.
Even when photographed from a distance, it's immediately clear that it's moving and blood is being supplied to its brain without any problems.
Chinatsu's carotid artery movement was easier to see on the left side, while the movement was less visible on the right side. (Although the right side is briefly shown in the video, the left side is clearly easier to see.)
In addition to the sounds of her carotid artery and heart, we also heard her stomach rumbling several times, and she even said something in her sleep, perhaps having fallen asleep during the shoot. We were able to hear every single sound that came from Chinatsu's body.
With echocardiography and listening to heart sounds, we were able to locate the heart with a probe and confirm that it was beating steadily in time with the heartbeat.
She described seeing a heart for the first time as "like a broad bean!", and as Chinatsu said, it does have the shape of a large bean, like a broad bean.
When you held your breath, we immediately saw a change in your heart, and it was clearly beating slower. This is the diving reflex, which is trying to conserve oxygen. During the second breath-hold, you cried out in distress, but when you resumed breathing, we could see that your heart was beating faster again.
As usual, I've created a separate video from the ultrasound screen footage.
For electrocardiograms and heart sounds, we are now using a new electrocardiograph for imaging.
We are using a two-lead electrocardiograph.
I've always wanted to use an electrocardiograph, so I'm incredibly grateful that I was able to do so and capture the results in video form, all thanks to everyone's support. Thank you so much for everything.
The top of the tablet screen displays the electrocardiogram, and the bottom displays the oxygen saturation level. The video begins with the attachment of the electrode pads.
Once the electrodes are attached, you'll hear a beeping sound and the electrocardiogram will be displayed on the tablet. Chinatsu's heart is also producing electrical signals in a good rhythm. We're also listening to her heartbeat with a stethoscope, so you can hear the beeping at the same time as the electronic sound, and of course, the timing is the same.
Since she was lying down, her heart rate was around 70 BPM, which is average. I showed Chinatsu her own heart rate and the average heart rate for women in their 20s, and she said, "That's about average!"
If you take a deep breath, you'll notice that your heart rate increases as you inhale and drops sharply as you exhale.
You can hear the difference in heart rate, but an electrocardiogram (ECG) clearly shows just how big the difference actually is.
In the case of the electrocardiogram and heart sounds taken during squats, we did not measure oxygen saturation, but we attached an electrocardiogram and recorded heart sounds.
Incidentally, he said that squats are harder than step-ups.
During squats, their heart rate exceeds 100 BPM early on, and towards the end, they're often heard shouting, "This is tough!!" as they push themselves.
Your heart rate has increased significantly at that time, and it's higher than when you were breathing into the bag earlier.
Even after it was over, she didn't calm down immediately. When I placed my hand on her carotid artery, she said, "It's really fast!" But when she took a deep breath, her heart rate dropped noticeably and she calmed down.
The last part of Chinatsu's first heartbeat recording is also a first, featuring an electrocardiogram and heart sounds taken while she is masturbating.
Chinatsu, who is said to be very sensitive, immediately increased her heart rate when she applied the electric massager to herself.
Her heart rate drops once, but then rises again after a while, and then drops again, and this cycle repeats. When I asked her later, she said that she was genuinely feeling good when her heart rate was elevated, so by adding an electrocardiogram in addition to the heart sounds, it's pretty clear at what point Chinatsu is feeling good.
Normally she has a husky voice, but when she's feeling pleasure, she lets out a high-pitched, breathy sigh, which is another charming contrast.
Finally, she said "I'm coming!" and came while slightly lifting her hips.
You never get to see an electrocardiogram from something this embarrassing, even at a hospital or during a health checkup, so I'm glad we were able to film it just to see it.
*The format is "MP4".
*We have confirmed that the model is 18 years of age or older. Providing, transferring, selling, or uploading this content to any third party or other website is strictly prohibited.
