A trunk support device (100) is configurable to be worn by a person to reduce the muscle forces in the persons back during forward bending. The device (100), among other things, includes: a waist strap (102) which is configurable to be coupled to the person waist a chest support (104) which is configurable to be coupled to the persons chest and capable of pushing against the person chest and first and second torque generators (106) coupled to the chest support (104) and the waist strap (102) and capable of providing a resistance torque between them. In operation, when a person wearing the device (100) bends forward, at least one of the torque generators (106) imposes a torque between the chest support (104) and the waist strap (102), causing the chest support (104) to impose a force onto the persons chest backwardly and the waist strap (102) to impose a force onto the persons hip.
