As with hiking alone in the wilderness, it is not a good idea to workout alone in a gym. You should always have a friend or staff available in case of an injury or health emergency.
Spotters for Lifting Weights
Many gyms require that those lifting weights have a spotter readily available. This is especially common for those lifting barbells who may drop the weight on themselves when they try to lift one time too many.
Using a Spotter: Chad Tackett describes the benefits of using a spotter and the qualities of a good spotter.
Workout Partners
Working out with a partner can give you two sets of eyes on any problems that may develop. Encourage each other to drink, breathe fully and correctly, and clear the workout area of obstacles. Be each others' safety buddy as well as workout buddy.
Personal Trainer
A personal trainer can be the best safety accessory of all. A trainer will watch your form to ensure you are doing the exercise correctly and not straining your lower back or problem joints. A trainer will increase your exercise duration and intensity in a step-wise fashion that will give you the best training effect with the least risk of injury. A trainer will also act as a spotter during weight lifting.
