{
  "activity_id": "22468767958",
  "name": "Brummen - W 1 Do Lange hardloopsessie - 6k",
  "date": "2026-04-09",
  "start_time": "2026-04-09 19:02:21",
  "sport": "running",
  "sport_group": "run",
  "filename": "fit/2026/04/09/22468767958_ACTIVITY.fit",
  "original_source_filename": "22468767958_ACTIVITY.fit",
  "duration_seconds": 2153.83,
  "duration": "00:35:54",
  "distance_meters": 6012.25,
  "distance_km": 6.012,
  "heart_rate": {
    "avg": 146,
    "max": 157
  },
  "power": {
    "avg": 331,
    "normalized": 332,
    "max": 440
  },
  "intensity_factor": null,
  "tss": null,
  "training_load": 106.18568420410156,
  "training_effect": {
    "aerobic": 3.6,
    "anaerobic": 0.0
  },
  "elevation": {
    "ascent_meters": 7,
    "descent_meters": 3,
    "min_altitude_meters": 17.6,
    "max_altitude_meters": 25.6
  },
  "temperature_c": {
    "avg": 26,
    "min": 25.0,
    "max": 27
  },
  "cadence": {
    "avg": 83,
    "max": 87
  },
  "calories": 487,
  "estimated_sweat_loss": null,
  "laps_intervals": [
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.6875,
      "avg_heart_rate": 132,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 340,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 82,
      "avg_stance_time": 271.8,
      "avg_step_length": 1000.0,
      "avg_temperature": 26,
      "avg_vertical_oscillation": 86.7,
      "avg_vertical_ratio": 8.67,
      "end_position_lat": 621587179,
      "end_position_long": 72193005,
      "enhanced_avg_speed": 2.791,
      "enhanced_max_altitude": 20.200000000000045,
      "enhanced_max_speed": 3.331,
      "enhanced_min_altitude": 17.399999999999977,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "distance",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.0,
      "max_heart_rate": 144,
      "max_power": 440,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 87,
      "max_temperature": 27,
      "message_index": 0,
      "normalized_power": 344,
      "sport": "running",
      "start_position_lat": 621679301,
      "start_position_long": 72149279,
      "start_time": "2026-04-09T17:02:21",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 2,
      "total_calories": 77,
      "total_descent": 0,
      "total_distance": 1000.0,
      "total_elapsed_time": 358.249,
      "total_strides": 501,
      "total_timer_time": 358.249,
      "total_work": 122032,
      "wkt_step_index": 0,
      "unknown_124": 26,
      "unknown_145": 99,
      "unknown_152": 100,
      "unknown_155": 9,
      "unknown_161": 2792,
      "unknown_27": 621679301,
      "unknown_28": 72193005,
      "unknown_29": 621587179,
      "unknown_30": 72148818
    },
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.8046875,
      "avg_heart_rate": 144,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 335,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 83,
      "avg_stance_time": 273.8,
      "avg_step_length": 989.9,
      "avg_temperature": 25,
      "avg_vertical_oscillation": 86.6,
      "avg_vertical_ratio": 8.75,
      "end_position_lat": 621503824,
      "end_position_long": 72173661,
      "enhanced_avg_speed": 2.751,
      "enhanced_max_altitude": 24.200000000000045,
      "enhanced_max_speed": 2.874,
      "enhanced_min_altitude": 20.0,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "distance",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.0,
      "max_heart_rate": 146,
      "max_power": 360,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 86,
      "max_temperature": 26,
      "message_index": 1,
      "normalized_power": 337,
      "sport": "running",
      "start_position_lat": 621586890,
      "start_position_long": 72193226,
      "start_time": "2026-04-09T17:08:20",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 3,
      "total_calories": 84,
      "total_descent": 0,
      "total_distance": 1000.0,
      "total_elapsed_time": 363.528,
      "total_strides": 506,
      "total_timer_time": 363.528,
      "total_work": 121725,
      "wkt_step_index": 0,
      "unknown_124": 25,
      "unknown_145": 101,
      "unknown_152": 100,
      "unknown_155": 9,
      "unknown_161": 2776,
      "unknown_27": 621586890,
      "unknown_28": 72222003,
      "unknown_29": 621503824,
      "unknown_30": 72173661
    },
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.140625,
      "avg_heart_rate": 145,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 324,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 84,
      "avg_stance_time": 271.9,
      "avg_step_length": 998.2,
      "avg_temperature": 25,
      "avg_vertical_oscillation": 86.6,
      "avg_vertical_ratio": 8.68,
      "end_position_lat": 621568368,
      "end_position_long": 72163018,
      "enhanced_avg_speed": 2.795,
      "enhanced_max_altitude": 25.600000000000023,
      "enhanced_max_speed": 3.042,
      "enhanced_min_altitude": 24.200000000000045,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "distance",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.0,
      "max_heart_rate": 147,
      "max_power": 349,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 86,
      "max_temperature": 26,
      "message_index": 2,
      "normalized_power": 325,
      "sport": "running",
      "start_position_lat": 621503623,
      "start_position_long": 72173363,
      "start_time": "2026-04-09T17:14:23",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 1,
      "total_calories": 81,
      "total_descent": 0,
      "total_distance": 1000.0,
      "total_elapsed_time": 357.722,
      "total_strides": 501,
      "total_timer_time": 357.722,
      "total_work": 116113,
      "wkt_step_index": 0,
      "unknown_124": 25,
      "unknown_145": 99,
      "unknown_152": 100,
      "unknown_155": 9,
      "unknown_161": 2797,
      "unknown_27": 621568368,
      "unknown_28": 72198673,
      "unknown_29": 621498966,
      "unknown_30": 72143204
    },
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.84375,
      "avg_heart_rate": 147,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 320,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 83,
      "avg_stance_time": 272.7,
      "avg_step_length": 1003.4,
      "avg_temperature": 26,
      "avg_vertical_oscillation": 87.1,
      "avg_vertical_ratio": 8.68,
      "end_position_lat": 621641994,
      "end_position_long": 72037819,
      "enhanced_avg_speed": 2.814,
      "enhanced_max_altitude": 25.600000000000023,
      "enhanced_max_speed": 2.967,
      "enhanced_min_altitude": 22.600000000000023,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "distance",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.0,
      "max_heart_rate": 153,
      "max_power": 332,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 86,
      "max_temperature": 26,
      "message_index": 3,
      "normalized_power": 320,
      "sport": "running",
      "start_position_lat": 621568567,
      "start_position_long": 72162704,
      "start_time": "2026-04-09T17:20:21",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 0,
      "total_calories": 81,
      "total_descent": 2,
      "total_distance": 1000.0,
      "total_elapsed_time": 355.365,
      "total_strides": 497,
      "total_timer_time": 355.365,
      "total_work": 113998,
      "wkt_step_index": 0,
      "unknown_124": 25,
      "unknown_145": 99,
      "unknown_152": 100,
      "unknown_155": 9,
      "unknown_161": 2783,
      "unknown_27": 621641994,
      "unknown_28": 72162704,
      "unknown_29": 621568567,
      "unknown_30": 72037819
    },
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.6796875,
      "avg_heart_rate": 151,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 331,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 83,
      "avg_stance_time": 273.4,
      "avg_step_length": 1000.5,
      "avg_temperature": 26,
      "avg_vertical_oscillation": 87.2,
      "avg_vertical_ratio": 8.71,
      "end_position_lat": 621663918,
      "end_position_long": 72054769,
      "enhanced_avg_speed": 2.783,
      "enhanced_max_altitude": 23.799999999999955,
      "enhanced_max_speed": 2.902,
      "enhanced_min_altitude": 22.0,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "distance",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.5,
      "max_heart_rate": 154,
      "max_power": 354,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 85,
      "max_temperature": 26,
      "message_index": 4,
      "normalized_power": 331,
      "sport": "running",
      "start_position_lat": 621642279,
      "start_position_long": 72037509,
      "start_time": "2026-04-09T17:26:17",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 0,
      "total_calories": 82,
      "total_descent": 0,
      "total_distance": 1000.0,
      "total_elapsed_time": 359.347,
      "total_strides": 501,
      "total_timer_time": 359.347,
      "total_work": 118878,
      "wkt_step_index": 0,
      "unknown_124": 26,
      "unknown_145": 100,
      "unknown_152": 100,
      "unknown_155": 9,
      "unknown_161": 2782,
      "unknown_27": 621686008,
      "unknown_28": 72054769,
      "unknown_29": 621642279,
      "unknown_30": 71982585
    },
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.375,
      "avg_heart_rate": 154,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 336,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 84,
      "avg_stance_time": 270.7,
      "avg_step_length": 1002.9,
      "avg_temperature": 26,
      "avg_vertical_oscillation": 86.5,
      "avg_vertical_ratio": 8.62,
      "end_position_lat": 621672120,
      "end_position_long": 72169520,
      "enhanced_avg_speed": 2.819,
      "enhanced_max_altitude": 24.0,
      "enhanced_max_speed": 2.893,
      "enhanced_min_altitude": 22.399999999999977,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "distance",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.0,
      "max_heart_rate": 157,
      "max_power": 355,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 87,
      "max_temperature": 27,
      "message_index": 5,
      "normalized_power": 337,
      "sport": "running",
      "start_position_lat": 621663816,
      "start_position_long": 72055237,
      "start_time": "2026-04-09T17:32:16",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 1,
      "total_calories": 82,
      "total_descent": 1,
      "total_distance": 1000.0,
      "total_elapsed_time": 354.767,
      "total_strides": 498,
      "total_timer_time": 354.767,
      "total_work": 119361,
      "wkt_step_index": 0,
      "unknown_124": 26,
      "unknown_145": 98,
      "unknown_152": 100,
      "unknown_155": 9,
      "unknown_161": 2814,
      "unknown_27": 621672120,
      "unknown_28": 72181619,
      "unknown_29": 621648135,
      "unknown_30": 72055237
    },
    {
      "avg_cadence_position": [
        null,
        null
      ],
      "avg_fractional_cadence": 0.75,
      "avg_heart_rate": 156,
      "avg_left_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_left_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_power": 322,
      "avg_power_position": [
        null,
        null
      ],
      "avg_right_power_phase": [
        null,
        null,
        null,
        null
      ],
      "avg_right_power_phase_peak": [
        null,
        null,
        null,
        null
      ],
      "avg_running_cadence": 83,
      "avg_stance_time": 271.5,
      "avg_step_length": 1018.8,
      "avg_temperature": 27,
      "avg_vertical_oscillation": 88.0,
      "avg_vertical_ratio": 8.63,
      "end_position_lat": 621672585,
      "end_position_long": 72167947,
      "enhanced_avg_speed": 2.525,
      "enhanced_max_altitude": 22.399999999999977,
      "enhanced_max_speed": 2.846,
      "enhanced_min_altitude": 22.399999999999977,
      "event": "lap",
      "event_type": "stop",
      "intensity": "active",
      "lap_trigger": "session_end",
      "max_cadence_position": [
        null,
        null
      ],
      "max_fractional_cadence": 0.5,
      "max_heart_rate": 156,
      "max_power": 322,
      "max_power_position": [
        null,
        null
      ],
      "max_running_cadence": 84,
      "max_temperature": 27,
      "message_index": 6,
      "normalized_power": 323,
      "sport": "running",
      "start_position_lat": 621672242,
      "start_position_long": 72169107,
      "start_time": "2026-04-09T17:38:11",
      "sub_sport": "generic",
      "timestamp": "2026-04-09T17:02:21",
      "total_ascent": 0,
      "total_calories": 1,
      "total_descent": 0,
      "total_distance": 12.25,
      "total_elapsed_time": 4.852,
      "total_strides": 3,
      "total_timer_time": 4.852,
      "total_work": 1286,
      "unknown_124": 27,
      "unknown_145": 1,
      "unknown_155": 0,
      "unknown_161": 2803,
      "unknown_27": 621672585,
      "unknown_28": 72169107,
      "unknown_29": 621672242,
      "unknown_30": 72167947
    }
  ],
  "time_in_hr_zones_seconds": {
    "zone_1": 64.988,
    "zone_2": 918.983,
    "zone_3": 1135.928,
    "zone_4": 0.0,
    "zone_5": 0.0
  },
  "time_in_power_zones_seconds": null,
  "recovery_data_for_day": {
    "sleep_hours": 0.0,
    "sleep": {
      "day": "2026-04-09 00:00:00.000000",
      "start": null,
      "end": null,
      "total_sleep": "00:00:00.000000",
      "deep_sleep": "00:00:00.000000",
      "light_sleep": "00:00:00.000000",
      "rem_sleep": "00:00:00.000000",
      "awake": "00:00:00.000000",
      "avg_spo2": null,
      "avg_rr": null,
      "avg_stress": null,
      "score": null,
      "qualifier": null
    },
    "resting_hr": 75.0,
    "resting_hr_summary": {
      "day": "2026-04-09 00:00:00.000000",
      "rhr_avg": null,
      "rhr_min": null,
      "rhr_max": null
    },
    "body_battery": null,
    "training_readiness": null
  },
  "fit_parse_status": "ok"
}
