This is really more of a personal choice, but I would hire a personal trainer that looks great naturally. Someone who has resorted to the use of illegal anabolic steroids may still help you reach your fitness goals, but you may feel some unnecessary pressure to perform at the level of a trainer who is using performance enhancers. In the end, a personal trainer is meant to teach you good habits, proper form and control and to motivate you to achieve your fitness AND health goals. It seems that someone who was doing such damage to their body by using steroids would not be as motivational in pursuing healthy strength and fitness conditioning.
It isn't the person hiring the personal trainer that actually needs the insurance. Personal trainer insurance is a liability insurance they can purchase to protect themselves and/or their business in case of something, such as injury, occuring with a client.
Each gym and individual trainer's have their own personal sites. An excellent idea is to make an test run appointment with a personal trainer in your local area. This will give you the chance to check their credentials and also to see if you are comfortable working with that person.
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Personal trainers offer one on one goals. Rather than having one trainer for a lot of people. With having a personal trainer they can set up a suitable routine that fits the person as an individual.
A personal trainer can be of any age. It usually depends on the kind of training that a person is receiving. An 18 year old is mature enough to know all the dynamics in a certain training regime.
From what I could find (In a June 2007 USA Today article, link is below), Randy Moss's personal trainer is a person named Tim Martin.
There are two ways a person can become a personal trainer. One could obtain certification only. The certificate needed is called the "Personal Trainer Certification". Another option is an academic degree with certification. This is usually the better option as potential employers like to see potential employees with a vast area of knowledge.
trainer is a noun it is a person
Make sure that when choosing a personal trainer, that person is certified in personal training by a reputable source. Usually when choosing a personal trainer at a widely franchised gym, they require some sort of certification, but you can ask to be sure. A great body is not enough to ensure that the correct technique is being followed. A personal trainer may simply have a more flexible body than you naturally, or simply be young enough that and his or her mistakes do not show. This does not mean that bad technique will work for you. Ask for proof of certification especially when dealing with independent personal trainers.
Probably the most famous trainer to the stars is Harley Pasternak. He does offer sessions, but his books are probably far more accessable for the average person.
You can ask the direct person in charge to see the certificate of a trainer, they are legally required to show upon request.
A personal trainer may provide valuable insight on particular areas of weakness in your fitness routine. This person can often help you to take advantage of unfamiliar gym equipment to maximize your exercise safety and performance.