Dave Portnoy, the founder of Barstool Sports, became the target of an antisemitic rant while recording a video in Mississippi on Friday
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Dave Portnoy, the founder of Barstool Sports, became the target of an antisemitic rant while recording a video in Mississippi on Friday. The incident occurred when Portnoy was filming one of his infamous “One Bite” pizza assessments outside of what looked to be Boardtown Pizza in

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Tamannaah Bhatia's Trainer Siddhartha Singh Reveals The 3 Worst Core Exercises

Posted By: Tarun Kumar Posted On: Oct 23, 2025Share Article
Tamannaah Bhatia's Trainer Siddhartha Singh Reveals The 3 Worst Core Exercises
Tamannaah Bhatia was last seen in Do You Wanna Partner. (Photo Credit: Instagram)

Tamannaah Bhatia's Trainer Siddhartha Singh Reveals The 3 Worst Core Exercises

If you've been doing endless sit-ups and Russian twists to sculpt your abs, it might be time to rethink your routine. According to celebrity fitness coach Siddhartha Singh, who has trained actors like Tamannaah Bhatia some of the most common “core workouts" could actually be doing you more harm than good.

In a recent Instagram post shared on October 21, Siddhartha called out what he described as the “three worst exercises for your core." The trainer explained that these moves are not only ineffective but can also strain your neck, back, and waist leading to injuries or even an unwanted change in body shape.

1. Sit-Ups

“The first on the list is the sit-up," said Siddhartha. “It does absolutely nothing for your core. The only thing this is going to give you is a strained neck and a high chance of upper back injury."

Despite their popularity, sit-ups often rely more on hip flexors than the abdominal muscles, putting unnecessary pressure on the spine.

2. Russian Twists

Next on his list were Russian twists, a move many associate with core strength. “I highly doubt any Russians are doing this for their core," he joked. “It can massively overload your lower back and lead to injury and a lot of wasted time."

The rotational motion of this exercise can stress the lumbar spine, especially if performed with weights or poor form.

3. Side Bends

Finally, Siddhartha pointed to side bends as another misleading “core" move. “I have wasted a lot of time on this one," he admitted. “Side bends train your obliques, and when those muscles get bigger, your waist can actually look thicker."

A post shared by Siddhartha Singh (@officialsiddharthasingh)

So, while the exercise may build strength, it can also make the waistline appear wider, the opposite of most fitness goals.

Better Alternatives for a Strong Core

Instead of these ineffective moves, Siddhartha recommends three smarter, safer options that truly engage your core muscles:

Side Planks

Dead Bugs

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Pallof Press

These exercises, he explained, improve stability, balance, and real functional strength without straining your spine or overdeveloping the obliques.

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Dave Portnoy, the founder of Barstool Sports, became the target of an antisemitic rant while recording a video in Mississippi on Friday
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