The Importance of Knowing Your K-Level

We all have different levels of mobility depending on things like our age, our physical condition and the demands of our daily lives. So when it comes to prosthetic legs, the component selection needs to be guided by your particular circumstances and functional ability.  

To help in this process, mobility levels have been developed through classifications known as the "K Levels.“ All prosthetic components are assigned a corresponding K-Level, and based on your personal K-Level, your prosthetist can select the right components for your needs. 

What is a K-Level? 

K-levels are a rating to indicate rehabilitation potential. It indicates a person's potential to use a prosthetic device. 

Read on to learn more about each K level and how yours is determined.  

The K-Level categories 

K-Level 1: Indoor walker 

With the help of prosthesis, it is possible for a person to manage level walking distances at a fixed cadence. 

K-Level 2: Restricted outdoor walker 

With the help of prosthesis, it is possible for a person to cope with limited walking distances at low walking speeds. The person can navigate low environmental obstacles such as curbs, steps and uneven floors. 

K-Level 3: Unrestricted outdoor walker 

With the help of prosthesis, it is possible to move freely on different types of terrain. The person may walk or have the potential to walk at varying speeds and be able to handle most environmental obstacles. They may be able to pursue therapeutic, occupational, recreational or exercise activities without overstressing their prosthesis. 

K-Level 4: Outdoor walkers with particularly high requirements 

With the help of the prosthesis, the person can move without restriction, including tolerating high-impact, stress or energy levels. Walking time and walking distance are unlimited. The prosthesis is capable of fulfilling the typical needs of a child, active adult, or athlete. 

Determining your K level 

To find your K-Level, your prosthetist will take many factors into careful consideration. These include your age, body weight, physical constitution, level of amputation, blunt features, pain, and whether you have any possible comorbidities.  

Your level is determined in close consultation with you, based upon your current lifestyle needs and your anticipated performance in the future.