Answer: Recliners; Decline
Step-by-step explanation:
If a person spends most of time leaning back on the recliners then the physical fitness of the person will decline.
Leaning back for a longer duration of time decreases the health of spines, as it may lead to pain in back.
Physical fitness needs to be maintained by proper workout and exercise, taking breaks in between if maintaining a constant postures for longer duration of time.