| id |
b61a3c6c-adc2-43a9-8a6f-4efa85ab7252 |
| user_id |
8684964a-bab1-4235-93a8-5fd5e24a1d0a |
| job_id |
zgoxtlpo-6174 |
| base_model_name |
xevyo |
| base_model_path |
/home/sid/tuning/finetune/backend/output/xevyo-bas /home/sid/tuning/finetune/backend/output/xevyo-base-v1/merged_fp16_hf... |
| model_name |
Optimal Dose of Running |
| model_desc |
Optimal Dose of Running for Longevity |
| model_path |
/home/sid/tuning/finetune/backend/output/zgoxtlpo- /home/sid/tuning/finetune/backend/output/zgoxtlpo-6174/merged_fp16_hf... |
| source_model_name |
xevyo |
| source_model_path |
/home/sid/tuning/finetune/backend/output/xevyo-bas /home/sid/tuning/finetune/backend/output/xevyo-base-v1/merged_fp16_hf... |
| source_job_id |
xevyo-base-v1 |
| dataset_desc |
This editorial evaluates one of the most debated q This editorial evaluates one of the most debated questions in exercise science: Is there an optimal dose of running for longevity—and can too much running actually reduce the benefits? Using findings from the Copenhagen City Heart Study and several large-scale running cohorts, the commentary examines whether the relationship between running and mortality is linear (“more is better”) or U-shaped (“too much may be harmful”).
It concludes that light to moderate running produces substantial longevity benefits, while very high doses show no clear additional advantage—but the evidence is still incomplete, and higher volumes might still be beneficial with better data. The article urges caution in making extreme claims and highlights the need for better-designed studies.
🧩 What the Study Found — and How the Editorial Interprets It
1. Even small amounts of jogging reduce mortality significantly
Jogging less than 1 hour per week or once per week meaningfully lowers all-cause mortality compared with sedentary adults.
Optimal_dose_of_running_for_lon…
This is encouraging for people with limited time.
2. The “optimal” zone appears to be:
1–2.4 hours per week
2–3 jogging sessions per week
slow or average pace
Optimal_dose_of_running_for_lon…
Joggers in this range lived the longest in the dataset.
3. Higher doses of running showed no better survival
In the Copenhagen study:
Running >2.5 hours/week
Running >3 times/week
Running at fast pace
…did not show better survival than sedentary non-joggers.
Optimal_dose_of_running_for_lon…
This suggested a U-shaped curve, where both very low and very high doses show reduced benefit.
🛑 BUT — the Editorial Identifies Major Limitations
The authors argue these “U-shaped” findings may be misleading because of methodological weaknesses:
1. Poor comparison group
Only 413 sedentary non-joggers were used as the reference group. They were:
older
more obese
much sicker (5–6× higher hypertension and diabetes)
Optimal_dose_of_running_for_lon…
This inflates the benefits of jogging.
2. Very small numbers of high-volume runners
Only:
47 joggers ran >4 hours/week
80 jogged >3 times/week
And there were almost no deaths in these groups (only 1–5 deaths).
Optimal_dose_of_running_for_lon…
Small samples make it impossible to determine the real risk.
3. Running dose categories were arbitrary
The grouping may have distorted the dose–response shape.
4. Other studies contradict the “too much running is harmful” idea
Large cohorts (55,000+ runners) show:
Significant mortality benefits even at the highest running volumes
High doses still outperform non-running
Optimal_dose_of_running_for_lon…
Thus, high-volume running may still be beneficial.
❤️ Possible Risks of Excessive Endurance Training (Still Uncertain)
The editorial reviews evidence suggesting that extreme endurance exercise might increase:
arrhythmia risk (e.g., atrial fibrillation in long-distance skiers)
temporary myocardial injury in marathon runners
Optimal_dose_of_running_for_lon…
But evidence is mixed and not conclusive.
🧭 Overall Conclusion
The commentary emphasizes three key messages:
1. Small amounts of running produce large longevity benefits.
Even <1 hour/week is protective.
2. Moderate running appears to be the “sweet spot” for most people.
3. The claim that “too much running is harmful” is not scientifically proven
— existing data are inconsistent, underpowered, or confounded.
4. More research is needed with:
better measurement
larger high-volume runner samples
objective fitness tracking
cause-specific mortality analysis
For now, the safe, evidence-backed conclusion is:
“More is not always better — but more may not be worse.”... |
| dataset_meta |
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| dataset_path |
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| training_output |
null |
| status |
completed |
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1764875951 |
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1764877325 |
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NULL |
| adapter_path |
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| plugged_in |
False |