Some exercises are very sports specific and could benefit in some way. Maybe towards improving your performance in a chosen sport.
 The list below are exercises I believe are unnecessary and could cause more harm then good.

Pistol Squat 

To me the amount of pressure you are putting on your patella. I’m surprised it doesn’t pop off when you perform this exercise. Now, it may seem impressive to be able to perform a single leg squat, but ask yourself, why are you doing it? 
If a man weighing 100kg can do a single leg squat, it would be far more impressive if he slapped on 200kg on a bar and performed a well control squat. Or, 
if you need to pistol squat, a much safer way to perform this exercise would be on the TRX.




Kettle Bell Swings

More often than not someone is swinging a kettle bell to burn calories. But I often wonder how a kettle bell swing is building muscle. Well, the answer is that it’s not. 
The momentum in the swing means there’s no pause or squeeze at any point or the movement. Which is essential when performing muscle hypertrophy. (or growth) This exercise is better used as a warm up exercise for your hips and glutes before a deadlift or squat. Or in a calorie burning circuit. So please think twice before adding this exercise to your routine on its own if you’re wanting to build lean muscle.

Forearm Curls

I understand there are men that want bigger forearms, or even improve their grip. But there are far better options out there. 
For example, if you’re wanting to improve your grip on a bar, hold a bar for a certain period of time. Or try and either improve the time or the load.

To build your forearms you need drop-sets, supersets, and reverse preacher curls.
 Performing one exercise into another with very little rest with your grip on the bar. This will leave your forearms on fire also improving your grip like you wouldn’t believe.

As for the reverse preacher curl, the exercise is performed with an EZ-bar with your elbows tucked in. It’s one of the best outer bicep/forearms exercises out there. Even taking your thumbs out of the equation and placing them on top of the bar, will massively help improve your grip.

Neck curls

Yeah, with the neck harness…

Well, where do I start with this exercise? 
I’ll starting by admitting to doing this exercise myself in my early years of lifting. Something I’m not proud of.
 But why did I want a bigger neck? 
Maybe it’s the association of having a bigger neck like a bodybuilder that it would make me appear bigger in appearance. I think at that age I just wanted to be noticed for my efforts in the gym. 
When you think about the amount of important ligaments and nerves you have passing through your neck and spine, placing a weight on a harness letting your neck take the load is probably one of the dumbest and most dangerous things you could possibly do in the gym.
 Granted some boxers do perform this exercise as it will benefit them. But to a lifter it is unnecessary. Your neck muscles will naturally get bigger when lifting, pressing and holding heavy loads in the gym.