Study of Ocean Rowing Muscle Metabolism. 1. What Effect Does Rowing 3000 Miles Across Atlantic Ocean Have on Calf Muscle Size? 2. In the Catabolic State of Extreme Endurance, is Muscle Loss Uniform or Can the Human Body Select Depending on Load and Nutrient Availability?

NCT05729841 | Completed

• 1 other identifier: 201021-A-08
• Study Type: observational
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

Little is known on the human adaptation to extreme endurance and with the increasing popularity in long duration events we seek to provide insight into the physiological and metabolic adaptation processes of ocean rowing. Rowing 12-18 hours a day will illicit a high energy expenditure and anecdotally people have lost large amounts of body weight and variable amounts of muscle mass, particularly in the lower limbs. This may provide insights and a potential new model to to study muscle unloading.

Conditions

Exercise

Keywords

ocean rowing; ultra endurance; doubly labelled water

Outcome Measures

Primary Outcomes (3)

• Energy Expenditure

  Amount of kcals expended per day

  5-7 days in final week of row

• Calf Muscle thickness

  Pre - Post measurements of calf muscle thickness

  5-7 weeks

• Energy Intake

  Amount of kcals consumed per day

  5-7 days in final week of row

Secondary Outcomes (2)

• Difference in rate of muscle thickness loss between males and females

  5-7 weeks

• Difference in rate of muscle thickness loss in older vs younger rowers

  5-7 weeks

Interventions

Ocean row OTHER

the Talisker Whisky Atlantic Challenge annual ocean rowing race.

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Healthy, fit and active males and females aged 18 and over

You may qualify if:

• \- Taking part in the Talisker Whisky Atlantic Challenge 2020 and 2021

You may not qualify if:

• \- lower limb amputee musculoskeletal, metabolic, neurological disease pacemaker fitted

Sponsors & Collaborators

• University of Exeter: lead

Study Sites (1)

University of Exeter

Exeter, Devon, EX2 4TH, United Kingdom

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

• Francis Stephens

  University of Exeter

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 16, 2023
• First Posted: February 15, 2023
• Study Start: November 28, 2020
• Primary Completion: February 16, 2022
• Study Completion: April 1, 2024
• Last Updated: May 21, 2024

Record last verified: 2024-05

Data Sharing

• IPD Sharing: Will not share

Locations

GB (1)