>>935721420
If you’ve only got 20 minutes a few times a week, the best bang-for-your-buck cardio is still interval training—but it needs to be joint-friendly. Think low-impact HIIT: incline treadmill walking, stationary bike, or even pool workouts if you have access. Alternate 1 minute of brisk pace with 1–2 minutes recovery, repeat for 15–20 mins.
Don’t worry about going ‘all-out’ like sprinters. Just get your heart rate up in waves and keep it moving. And honestly? Walking uphill at a steady clip or biking with resistance can crush calories and build endurance safely. Consistency matters more than punishment.
