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Sport Specific Training Discussion => 800m+ Running and/or Conditioning => Topic started by: adarqui on March 15, 2010, 07:26:57 am

Title: DISTANCE RUNNING INDEX
Post by: adarqui on March 15, 2010, 07:26:57 am
This thread will contain links to important distance-running related threads, galleries, and various information.

List of stuff:
Title: Re: DISTANCE RUNNING INDEX
Post by: LBSS on July 14, 2025, 01:32:29 pm
rather than make a new thread, i'm just going to start aggregating some stuff i want to refer back to in here.

"A Paradigm Shift in Understanding Overuse Running-Related Injuries: Findings From the Garmin-RUNSAFE Study Point to a Sudden Not Gradual Onset." https://www.ucviden.dk/da/publications/a-paradigm-shift-in-understanding-overuse-running-related-injurie

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OBJECTIVE: To investigate the proportion of running-related injuries that can be classified as (i) being based on overload with an acute mechanism with a sudden onset, (ii) being overuse in the sense they are based on a repetitive mechanism with a sudden onset; and (iii) being overuse in the sense that runners gradually develop problems that lead to an injury.

DESIGN: Cohort study with an 18-month follow-up.

METHODS: English-speaking runners aged at least 18 years who were tracking running activities were included. Running-related injury during follow-up categorized into three groups: (i) those with overload injury; (ii) those with a running-related problem 7 to 28 days prior to reporting a running-related injury and (iii) those sustaining a running-related injury without any preceding problems.

RESULTS: Overload injury accounted for 467 of 1,666 injuries (28%), while 1,199 injuries were overuse (72%). Among overuse injuries, the proportion of runners having a problem prior to injury occurrence was 6.9% [9.4%; 13.0%] 28 days prior to injury.

CONCLUSION: Most of the overuse injuries occurring in adult runners may be classified as sudden repetitive overuse injuries rather than injuries that are based on a gradual onset.
Title: Re: DISTANCE RUNNING INDEX
Post by: LBSS on July 17, 2025, 03:18:59 pm
https://www.outsideonline.com/health/nutrition/takes-to-run-and-recover-100-miles

https://pubmed.ncbi.nlm.nih.gov/40239961/

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High total energy expenditure (TEE) and rate of water turnover (rH2O) using doubly labeled water (2H218O) have been reported during single-stage and multistage ultraendurance events. At the 161-km distance, less is known about the interaction of TEE, rH2O, and ad libitum energy/fluid intake. This is especially true during the postrace recovery window.

Purpose: To measure TEE, rH2O, and ad libitum energy/fluid intake during a 161-km ultramarathon while extending the TEE and rH2O measurement window to a 7-day postrace period.

Methods: Doubly labeled water was used to monitor TEE and rH2O in 2 male ultrarunners (R1, R2) during a 161-km ultramarathon. Self-reported energy/fluid intake was recorded at crew-accessible aid stations.

Results: Both runners completed the race in 32.8 hours, and TEE over this period was 65.8 MJ (6.5 × basal metabolic rate [BMR], 15,723 kcal, 11,225 kcal·24 h-1) in R1 and 66.5 MJ (7.4 ×BMR, 15,888 kcal, 11,293 kcal·24 h-1) in R2. Race energy intake for both runners approximated 50% of TEE, with reported fluid consumption of 21.8 L and 15.7 L for R1 and R2, respectively. rH2O during the race was 14.6 L in R1 and 15.5 L in R2. During the 7-day postrace period, total TEE and rH2O were 94.7 MJ (1.9 ×BMR, 22,634 kcal, 3245 kcal·d-1) and 41.8 L for R1 and 80.0 MJ (1.8 ×BMR, 19,116 kcal, 2721 kcal·d-1) and 24.0 L for R2, respectively.

Conclusion: These data illustrate the expected nutrient and fluid budgets for ultramarathons and describe the challenge of restoring acute negative energy balance following these events.