Strength Training

The Keiser Air 250 Leg Curl is a seated air resistance leg curl machine designed for specific hamstring work. Its resistance is adjustable from 1 to 118 kg, offering an alternative that is just as effective as free or guided weights, while limiting stress on knee joints and adjacent connective tissue. In fact, the resistance applied during the initial and final phases of the effort has been deliberately reduced to avoid any risk of injury.

The quadriceps are one of the most powerful muscle groups we have. They are responsible for much of our stability and mobility. This leg extension features a seat that adjusts forward and backward without changing its angle for maximum comfort. The perfect complement to the A250 Leg Curl, the Air 250 Leg Extension offers gentle resistance that protects the body from impact. 

The Keiser Air 300 Belt Squat is an air resistance machine designed to provide a less spine-straining alternative to the traditional squat. Its working position is ideal for sumo variants or with a wide foot placement, which makes the machine suitable for working the whole posterior chain. Its variable resistance is adjustable from 1 to 363 kg, and the central display panel allowd an efficient monitoring of the effort in real time.

The Keiser Air 300 Leg Curl Pro is an elongated air-resistance leg-curl machine designed for specific hamstring work. Its resistance is adjustable from 3 to 111 kg, offering an alternative that is just as effective as free or guided weights, while limiting stress on knee joints and adjacent connective tissue. In fact, the resistance applied during the initial and final phases of the effort has been deliberately reduced to avoid any risk of injury.

The Keiser Air 300 Leg Press is an air resistance thigh press with independent platforms. It is an ideal tool for working the entire posterior chain either separately or simultaneously. Thanks to a variable resistance adjustable from 1 to 545 kg and a side display panel indicating the essential information of the effort (number of repetitions, chosen resistance, etc.) it is an ideal machine for helping performance.

The Keiser Air 300 Runner is an air resistance machine designed for explosive work on sprint phases. The inclined working position places the body in an ideal orientation to develop optimal strength when pushing on the independent platforms. Its variable resistance, adjustable from 6 to 222 kg, as well as its side display panel (real-time performance monitoring) make it an ideal tool for all fitness centres.

The Keiser Air 300 Squat is a guided air resistance machine that was developed for explosive posterior chain work. Thanks to its variable resistance (limited resistance on the phases that are hard on the knee), which is fully adjustable from 18 to 318 kg, it is an ideal machine for those looking for performance. Its integrated display also allows real-time monitoring of effort during the work phase.

The Keiser Air 300 Squat Pro is an improved version of the standard Air 300 with an intuitive wedge system for easier starting and stopping of the movement. Just like the standard model, it is an incredible performance tool with its adjustable variable resistance from 18 to 318 kg as well as its integrated display that allows you to track the effort in real time.

Keiser Compressors are essential accessories for the proper operation of Keiser air resistance units. The air inlets/outlets are placed directly under the machine, and join the compressor by a system of hoses placed under an aluminium rail in order to limit to the maximum the compression caused by the movement of the sportsmen in the space. This mounting allows the compressors to be placed in a location where their presence does not interfere with the athlete.

Keiser Compressors are essential accessories for the proper operation of Keiser air resistance units. The air inlets/outlets are placed directly under the machine, and join the compressor by a system of hoses placed under an aluminium rail in order to limit to the maximum the compression caused by the movement of the sportsmen in the space. This mounting allows the compressors to be placed in a location where their presence does not interfere with the athlete.

The quadriceps can produce very high strengths at very fast speeds. This makes the knee vulnerable to injury at high degrees of flexion. This machine reduces resistance where the knee is most vulnerable to injury. Unlike conventional machines that use iron, the low inertia design of the A300 Leg Extension Pro gives you smooth resistance. The result is a workout unlike anything else on the market.

This universal compressor works for air resistance devices such as Keiser machines.
This model has a 6 litre tank and a power of up to 8 bar. With 40 dBA, it is one of the quietest compressors.