Final answer:
The pneumatic wheelchair, which features air-filled tires for a smoother ride, was developed in the 1980s. This period witnessed significant advancements in assistive technologies, with pneumatic tires offering better shock absorption and comfort.
Step-by-step explanation:
The pneumatic wheelchair was an innovation aimed at improving the comfort and mobility of individuals with disabilities. This type of wheelchair uses air-filled tires to provide a smoother ride over various surfaces. The development of the pneumatic wheelchair occurred in the 1980s. During this period, there was a growing awareness and advocacy for the rights and needs of people with disabilities, which drove innovation in assistive technologies such as wheelchairs.
Advancements during the 1980s saw the introduction of lighter frames made from materials like aluminum and titanium, as well as enhancements in the design of wheelchair tires. The pneumatic tires, specifically, offered a considerable improvement over the hard rubber tires previously used, as they could better absorb shocks and offer comfort on uneven terrain.