CategoryAquatic
Session20 - 75 min
Swimming is a low-impact full-body endurance activity that develops aerobic fitness, technique, and muscular endurance. The water reduces impact while still adding resistance through every stroke. Pace, stroke type, rest intervals, and pool or open-water conditions all shape the training effect.
Exercise Metrics
Fitness Profile [1]
Strength
5
Low-Intensity Cardio (aerobic)
9
High-Intensity Cardio (peak)
5
Mobility & Flexibility
4
Balance
2
Estimated impact of the activity on the 5 key fitness dimensions for longevity.
Based on Bryan Johnson's Blueprint Protocol.
Heart Rate Zones [2]
0
Rest
0 - 49 %
1
Very easy
50 - 59 %
2
Easy aerobic
60 - 69 %
3
Moderate aerobic
70 - 79 %
4
Hard
80 - 89 %
5
Very hard
90 - 100 %
Typical distribution as % of HR max.
Actual values depend on workout intensity, fitness level, duration, and individual physiology.
Activity Type Details
Apple Health label
Swimming
HealthKit reference [3]
.swimming
MET [4]
5.8 - 14.5
Typical session duration
20 - 75 min
Recommended fitness level
Beginner
Injury risk
Medium
Training advice
Benefits
Swimming builds aerobic fitness, muscular endurance, breathing control, and technique with very low impact. It is useful for conditioning when joints need a break from land-based loading.
What to watch out for
Water safety, breathing comfort, shoulder load, and technique matter. Swim in appropriate environments, progress volume gradually, and reduce intensity if form breaks or breathing feels uncontrolled.
Visualize the Swimming workout stats on your iPhone
Rating
5.0
100%FREE
Explore other Activity Types in the Aquatic category:
[1]
Learn more about fitness longevity dimensions in the "5 Pillars of Exercise for Longevity" resource.
[2]
Learn more about Heart Rate Zones in the "Heart Rate Zones Explained" resource.
[3]
The HealthKit HKWorkoutActivityType value this Activity Type is associated with.
[4]
MET (Metabolic Equivalent of Task) expresses how much energy an activity requires compared with rest. It is commonly used together with body weight and exercise duration to estimate calorie burn.
Disclaimer
The content on this page is for general informational purposes only and not intended as medical advice. Provided metrics are for the most part estimates and might not be based on clinical evidence. The goal is to provide directional guidance and improve the models over time.