Spirit Commercial Fitness i-Strength
Spirit Commercial Fitness i-Strength Functional Trainer (IS-3001)
Spirit Commercial Fitness i-Strength Functional Trainer (IS-3001)
REFERENCE 4811.8
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- Product description
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The i-Strength series is an innovative line of strength equipment with an electronically adaptive resistance system. Unlike traditional machines with weight stacks, resistance here is generated and precisely controlled by a motor. The result: an exceptionally smooth, precise, and effective training experience. Intelligent control and the integrated large touchscreen console allow training parameters to be precisely controlled, analyzed, and evaluated – for maximum control and efficient, modern strength training.
Advantages of the i-Strength equipment series:
- extremely smooth movements
- instantly adjustable resistance
- reproducible training conditions
- significantly more training variety
- no weight stacks – quiet, low maintenance, modern
- extremely even resistance for optimal movement quality
- quick adjustment without re-pinning
- measurability & reproducibility of every training session
- versatility: strength, rehab, explosiveness in one device
The 4 Training Modes at a Glance
1. Pure (classic resistance - traditional weight training) - The "Pure" mode corresponds to classic strength training with even resistance. Comparable to classic equipment – only more precise and controlled.
Ideal for:
- muscle building (hypertrophy)
- general strength training
- beginners & advanced users
2. Eccentric (eccentric training - increases resistance during the return movement) - Here, the negative phase (yielding movement) is specifically intensified. Eccentric training is considered one of the most effective methods in strength training. Eccentric strength training is a technique that focuses on the lowering or lengthening phase of an exercise, often referred to as the "negative" movement. To increase strength, it is necessary to fatigue the muscles. Eccentric training is valuable for achieving muscle fatigue.
Advantages:
- particularly effective muscle building
- higher strength gains
- more intense training stimuli
3. Isokinetic (constant speed regardless of the force exerted) - The resistance adjusts so that the movement is always performed at a constant speed. In isokinetic exercises, the speed of movement remains constant, but the resistance varies. This typically requires specialized equipment. Effective in improving functional performance and often used to restore mobility.
Advantages:
- maximum control
- high safety
- ideal load control
- particularly suitable for: rehabilitation, physiotherapy, joint-friendly training
4. Elastic (dynamic resistance - resistance increases with increasing stretch) - The resistance increases progressively – similar to a resistance band. Elastic training is a form of strength training that uses fast-twitch muscle fibers to exert force quickly. Incorporating elastic training increases strength, improves reaction time, and reduces the risk of falls in older adults.
Advantages:
- improvement of explosive power
- activation of fast-twitch fibers
- sport-specific training
- Ideal for: athletes, functional training, performance training
Areas of application:
1. Physiotherapy & Rehabilitation
- safe, controlled movements
- ideal load control
- reproducible training programs
- perfect for medical training concepts
2. Gyms & Boutique Studios with Supervision Concepts
- modern alternative to classic equipment
- high training quality
- attractive for demanding customers
3. Personal Training
- individual training control
- versatile training methods
- optimal for supervised training
4. Athletes & Ambitious Trainees
- explosive power & performance
- eccentric training
- sport-specific stimuli
Features Pec Fly / Rear Delt:
- Functional training requires stable body control, while a variety of movement patterns for the entire body are executed via two independent cable pulls. The free, yet guided cable movement allows training in natural movement sequences with high stability and control.
- Intelligent control and the integrated large touchscreen console
- The dual independent cable pulleys enable asymmetric or bilateral training, as well as the simultaneous training of two users on one machine.
- Adjustable, height-adjustable deflection rollers allow for quick adaptation to different exercises and body sizes, offering maximum training versatility.
- The 180° swivel rollers enable a large range of motion and support functional full-body movements in all planes.
- The integrated pull-up module with multiple grip positions extends training with additional bodyweight exercises.
- The i-Strength mechanical resistance system enables extremely smooth training.
- Electromechanical servo control mechanism offers standard traditional, eccentric, isokinetic, and elastic training.
- The system based on smooth servo motors ensures a friction-free training experience. Through digital load calculation, it offers unparalleled smoothness and consistency that cannot be achieved with conventional weight training.
- Precision engineering. Proven reliability. Tested for 2 million cycles to ensure consistently reliable resistance performance.
- Dual Weight Stack System (2 x 3-50kg) with fine 5 kg increments for precise load control. Unique servo control system allows doubling the available resistance from 1:2 to 1:1
- Dynamic color feedback – the integrated LED light bar dynamically changes color with increasing load, allowing immediate recognition of training zones.
- Connect App – update your training data – with a simple login to the app, your entire training is automatically saved. This visual representation of your progress not only shows your development but also creates a personal “Strength Resume,” thus building a strong, data-driven connection between the member and your facility.
- Real-time monitoring – cloud-based management allows operators to monitor device status and usage load in real time. This ensures that the devices remain safe and functional at all times, without the need for manual checks, while significantly increasing operational efficiency through precise data analysis.
Usage: Home use to commercial continuous use, payload: approx. 160kg
Device dimensions: L110 x W152 x H212cm, weight 252kg
Warranty: 1 year full warranty, 2 years on labor and spare parts (excluding consumables such as upholstery, cables)



































