Originally Posted by OccultaVexillum
What do you guys usually do for cardio?
TLDR - I hate running and can't push the sled, any ideas for enjoyable cardio?
Erg / Row. Get yourself a used Concept2. Advantages over other cardio: almost full body workout, fairly large RoM, very easy on joints, adjustable resistance. Most Concept2 rowers have pace boat modes and other games to keep the boredom at bay.
Also, for pure "cardio" where the intent is to maximize lung and heart performance, rowing is tough to beat:
The highest values [VO2max] in absolute terms for humans are often found in rowers, as their much greater bulk makes up for a slightly lower VO2 max per kg. Elite oarsmen measured in 1984 had VO2 max values of 6.1±0.6 L/min and oarswomen 4.1±0.4 L/min. Rowers are interested in both absolute values of VO2 max and in lung capacity, and the fact that they are measured in similar units means that the two are often confused. British rower Sir Matthew Pinsent is variously reported to have had a VO2 of 7.5l/min or 8.5l/min, although the latter may represent confusion with his lung capacity of 8.5 litres. New Zealand sculler Rob Waddell has one of the highest absolute VO2 max levels ever tested.
So runners and cyclists often have higher VO2Max/kg but rowers generally have the best VO2max independent of body weight. Also, compared to most other endurance athletes, rowers tend to have highly developed upper backs, abs, and shoulders, along with strong legs and hammies.
TL;DR - Unless you absolutely love running/cycling/swimming, I am a big proponent of rowing as the best choice for cardio that maximizes performance and physique.