CategoryCardio
Session30 - 75 min

Cross training mixes different training styles to build broad fitness while reducing repetition from a single activity. A session might combine cardio, strength, mobility, and skill work depending on the format. It is especially useful for variety, general conditioning, and filling gaps left by more specialized training.

Exercise Metrics

Fitness Profile [1]

Strength
6
Low-Intensity Cardio (aerobic)
7
High-Intensity Cardio (peak)
7
Mobility & Flexibility
4
Balance
5
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
Cross Training
HealthKit reference [3]
.crossTraining
MET [4]
3.5 - 9
Typical session duration
30 - 75 min
Recommended fitness level
Beginner
Injury risk
Medium

Calorie Burn

Estimated active Calories per 30 minutes of exercise for the MET range 3.5 - 9. Active Calories exclude the energy your body would use at rest.

Body weightEstimated active Calories
/ 30min
50 kg (110 lb)
66 - 210 Cal
60 kg (132 lb)
79 - 252 Cal
70 kg (154 lb)
92 - 294 Cal
80 kg (176 lb)
105 - 336 Cal
90 kg (198 lb)
118 - 378 Cal
100 kg (220 lb)
131 - 420 Cal

Actual energy use varies with intensity, fitness, movement efficiency, and individual physiology. Learn more in the "How to Estimate Calories Burned with MET Values" resource.

Training advice

Benefits

Cross training builds a broader fitness base by mixing cardio, strength, mobility, and skill. It can fill gaps left by a single sport, reduce repetitive stress, and keep training fresh while still producing meaningful workload.

What to watch out for

The main risk is doing too much variety at too much intensity. Keep the session coherent, avoid stacking unfamiliar high-skill movements under fatigue, and treat new equipment or drills as practice before intensity.

Streakout app preview – Summary, Insights & Timeline
Visualize the Cross Training workout stats on your iPhone
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Explore other Activity Types in the Cardio 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.