One of the biggest fitness challenges people face is simply finding enough time to workout. Between work, family, and daily responsibilities, it can feel nearly impossible to fit in all the essential components of fitness each week, including cardio, strength training, and flexibility or mobility work. Yet each of these areas plays a critical role in overall health, longevity, energy, and quality of life.
So, what should you do when time is tight?
If you have to prioritize one form of exercise, strength training is often the smartest investment because it supports muscle mass, bone density, metabolism, posture, joint health, and functional movement as we age. But here’s the good news: when designed properly, your strength workout can also provide a significant cardiovascular benefit. In other words, your strength training can double as cardio.
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Here are some ways to turn your strength workout into a heart-pumping, calorie-burning session:
Use Compound Movements

Prioritize exercises that involve multiple muscle groups at once, such as squats, lunges, rows, pull-ups, deadlifts, and presses. These movements demand more oxygen and energy from your body, forcing your heart to work harder compared to isolated exercises like bicep curls or leg extensions.
Incorporate Full Body Movements
Combine exercises to challenge even more muscle groups simultaneously. Movements like a squat with an overhead press or a reverse lunge with a bicep curl increase muscular demand while elevating your heart rate. The more muscle you recruit, the greater the cardiovascular challenge.
Eliminate Excess Rest
Traditional strength workouts often include long rest periods, but if your goal is to improve cardiovascular fitness too, keep moving. Try supersetting exercises by pairing lower body and upper body movements together, alternating push and pull exercises, or completing small circuits. This approach keeps your heart rate elevated throughout the workout.
Add Cardio Bursts Between Sets
A great way to blend strength and cardio is to insert short bursts of aerobic activity between full sets. For example, perform 30 seconds of hard rowing, 60 seconds of jump rope, or a quick stair climb between strength exercises. These mini cardio intervals spike your heart rate while keeping the workout fun and dynamic.
Start or Finish with a Tabata Sprint
If you’re short on time, finish strong with a quick four-minute Tabata interval session. Alternate 20 seconds of all-out effort with 10 seconds of rest for eight rounds on a bike, treadmill, rowing machine, or stair climber. It’s short, intense, and highly effective.
You don’t need endless hours in the gym to become healthier and fitter. By training smarter and combining fitness components, you can maximize your time and create workouts that strengthen your muscles, challenge your heart, and leave you feeling energized and accomplished.
Yours in health & fitness,
Sherri McMillan
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