At this stage in my career I prefer shorter workouts. I’ve been interval training myself since the early 90’s and continue to use that as a base for my cardio exercise (e.g. suicides, ball rolls, plyometric exercises such as line hops…); most of my interval training is based on my preferred ‘work-to-rest ratio’ necessary for my sport. I also no longer try to do heavy lifting but maintain strength with weight training, body weight exercises such as push-ups, suspension training and such. I also do a lot of band and other elastic resistance training. As a tournament tennis player all if this is geared primarily to sports performance.
I love core yoga, particularly when it focuses on balance. I enjoy free weights “ nothing fancy “ just the feeling of breathing against the weight “ particularly squats and bench press. I like to try any kind of new group ex. class, particularly if I can try a new teacher and they turn out to be really great. What a joy it is to work with someone who is a master of their craft.
For cardiorespiratory exercise, I like relatively short brick workouts (combining 2 of the three triathlon events: swimming, biking, and running; never longer than 30 minutes for any 1 of the 3 modes or 45 minutes total). Alternatively I like hiking and snowshoeing if you lump that into “training.”
For weight training, I like Super Sets, Pyramiding, Compound (multi-joint) exercises, and Alternating Rep (i.e. Squat / Press) Movements. My ideal workout would include throwing any or all of that into a strength circuit (not necessarily an aerobic circuit with no rest).
For implements my favorites are sandbags, battle ropes, dumbbells, kettlebells and suspension trainers. If I had to pick one it would be sandbags, or dumbbells, or well, I can’t decide…