According to SGMA’s SuperStudy of Sports Participation 2006 edition, nine out of the top fifteen most popular athletic pursuits for seniors are fitness-related.

Listed below are the top fifteen most popular sports, fitness, and recreational activities for the U.S. population — age 55+:

Most Popular Sports/Athletic/Fitness Activities
U.S. Population-Age 55+
Based on Total Participation

RANK	ATHLEITIC ACTIVITY					PARTICIPANTS
  1. 	Fitness Walking 						10.3 million 
  2.	Treadmill Exercise 					  	  8.8 million 
  3.	Stretching 				  			  8.2 million 
  4.	Hand Weights				  			  5.3 million 
  5.	Golf 					  			  4.9 million 
  6.	Freshwater Fishing 			 			  4.6 million 
  7.	Day Hiking 				  			  3.7 million
  8.	Weight/Resistance Machines					  3.6 million 
  9.	Stationary Cycling (Upright Bike) 			  	  3.4 million 
10.	Bowling 				  			  3.3 million 
11.	Recreational Vehicle Camping 			  	  2.8 million 
12.	Saltwater Fishing 			 			  2.7 million 
13.	Other Exercise to Music 				  	  2.6 million 
14.	Dumbells 				  			  2.5 million 
15.	Stationary Cycling (Recumbent Bike) 		 	  2.4 million