A series of 2-person gym equipment where people combine their strength to move the load. Work out in pairs and push each other's limits in collaborative or opposite modes.
A fun/gamified way of exercising.
A way to help someone push their limits by helping them slightly with the final few repetitions.
A way for kids to work out alongside their parents.
A way for lovers to exercise together.
A way for the elderly to work out alongside a relative/caregiver.
2-person gym equipment where there are 2 sets of handles/levers so that 2 people can combine their strength in moving the load.
In any 2-person machine, clever use of pulleys distributes the load so that either of the two or both together can move the load. So even if one stops cooperating, the other can continue.
Two people would load up as many weights as it takes to make it challenging for their combined strenght.
In opposite mode, the machines are designed so that one person provides resistance to the other. As one person pulls, the other feels the pull as weight. Both pull against each other.
If one person is stronger, the machine can fit some weights to help the weaker side and make it more difficult on the stronger side.
Why not more than 2 people?
2 people can feel each other's contribution and thus keep each other accountable during workouts. With 3 or more people, it would be difficult to tell if someone is not contributing their maximal effort. This could lead to arguments, teasing, and make it less fun for all.