Max. user weight
The maximum weight of the user for which the cross trainer is designed. This parameter should be adhered to as accurately as possible, do not be mistaken about the fact that 3-5 kg over the calculated weight will not affect the device. Yes, most likely, the simulator will be able to work for some time, but it will experience loads exceeding the calculated ones, and at best it will fail earlier than expected, and at worst it may break at the most unfortunate moment, which is fraught with injuries. In addition, this case is usually not covered by the manufacturer's warranty, and you will have to eliminate the consequences at your own expense.
Load levels
The number of fixed load levels (pedal resistance during movement) provided for in the design of the cross trainer. The more such levels provided in the design, the wider the possibilities for adjusting the load and the more accurately it can be adjusted to the requirements of a particular user. At the same time, the abundance of adjustments accordingly affects the price.
Q factor
Q factor — the distance between the cross trainer pedals. Anatomically correct running position for ankles suggests a Q factor between 50mm and 90mm. The exact value depends on the height and build of a particular user. Cross trainer with a Q factor up to 90 mm allows you to remove excess stress from the joints of the legs. Of course, it must be taken into account that with the growth of the Q factor, the load on the user's muscular system automatically increases. So, models with an indicator above 90 mm allow for more effective training. But at the same time, an anatomically incorrect position of the legs is assumed, which can adversely affect the health of the joints. If the user has any diseases associated with the joints, you should choose a cross trainer with an optimal Q factor for your height and build (from 50 to 90 mm).
Step length
The maximum horizontal distance between the pedals of the cross trainer, determines, respectively, the length of the athlete's step when working on the machine. It is believed that for people of average height, a step length of 400 – 500 mm is optimal, and many cross trainers are made with this calculation. At the same time, there are models with a variable step length, which allows you to adjust it to the personal preferences of different users.
Anyway, the step length should be chosen depending on height, physique and personal preferences. Too small a step will lead to the fact that you have to mince, and the imitation of walking will turn into marking time, and too wide will lead to inconvenience and an unjustified increase in load without increasing efficiency. Ideally, it is advisable to test the cross trainer before buying — how comfortable you will be on it. This applies to both fixed and adjustable step lengths.
Uneven floors compensators
The presence in the design of the cross trainer
of height-adjustable legs. Each of these legs is independently adjustable, and they can be set to different lengths. This allows you to compensate for uneven floors and install the simulator in a horizontal position stably.
Power source
The type of power source used in the cross trainer.
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Mains. Cross trainers are powered by a standard 230 V power supply. Such power allows you not to worry about replacing or recharging dead batteries — the machine will work as long as there is electricity in the house. In addition, it is suitable for machines with any load system, even electromagnetic (for more details, see "Load system"), while such models are much cheaper than similar generator ones (see below). The main disadvantages in this case are the dependence on the outlet and the need to use a power cord, which can limit mobility and get in the way. However, in most cases, these shortcomings do not cause significant inconvenience.
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Battery. The cross trainers are powered by batteries. The main advantage is the autonomy of the machine — it can be installed anywhere without worrying about the presence of sockets and laying the power cord. On the other hand, the battery power is very limited, and they are only suitable for cross trainers with mechanical or magnetic load systems (see "Load System" for more details), where only the computer needs power. In addition, the battery life is not infinite, and they need to be changed or recharged periodically.
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Built-in generator. The cross trainers are powered by a built-in generator, which is driven by the rotation of the flywheel. In othe
...r words, when using such a model, the user himself generates the energy required for work. To turn on the generator simulator, it is enough to turn the flywheel several times. This type of power supply combines the advantages of the two above. On the one hand, it is autonomous, on the other hand, it has sufficient power even to provide energy to electromagnetic load systems (for more details, see "Load system"). And you won’t have to change anything, unlike batteries, because the service life of the generator is comparable to the service life of the machine itself. At the same time, this feature significantly increases the weight, and most importantly, the cost of the cross trainer, and therefore is found only in premium-class models.Dimensions
The dimensions of the equipment in the assembled and ready-to-work state. It is important to note that more space is needed for the comfortable and proper operation of the machine.