Resistance Exercise and Hydrolyzed Collagen Supplementation
The Dose-response of Vitamin C-enriched Collagen on Markers of Collagen Synthesis in Healthy Young and Older Men and Women Following Resistance Exercise
1 other identifier
interventional
21
1 country
1
Brief Summary
This study aimed to investigate the effect of different doses of hydrolyzed collagen (HC) with resistance exercise (RE) on whole body collagen synthesis in healthy young and older males and females.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jan 2019
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 30, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
April 30, 2023
CompletedFirst Submitted
Initial submission to the registry
May 26, 2023
CompletedFirst Posted
Study publicly available on registry
July 6, 2023
CompletedJuly 6, 2023
June 1, 2023
8 months
May 26, 2023
June 27, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Change in a marker of collagen synthesis
Serum procollagen type Ⅰ N-terminal propeptide (PⅠNP) concentrations were measured following 0 grams, 15 grams or 30 grams hydrolyzed collagen (HC) intake with resistnace exercise (RE) during all trials.
at rest immediately prior to HC ingestion, 0.5-hour post RE, 1-hour post RE, 2-hour post RE, 4-hour post RE and 6-hour post RE
Change in a marker of collagen breakdown
Plasma β-isomerized C-terminal telopeptide of type I collagen (β-CTX) concentrations were measured following 0 grams, 15 grams or 30 grams hydrolyzed collagen (HC) intake with resistnace exercise (RE) during all trials.
at rest immediately prior to HC ingestion and 6-hour post RE
Changes in amino acids concentrations in blood
Concentration of serum amino acids that constitute collagen was measured following 0 grams, 15 grams or 30 grams hydrolyzed collagen (HC) intake with resistnace exercise (RE) during all trials.
at rest immediately prior to HC ingestion, 0.5-hour post HC ingestion, 1-hour post HC ingestion, 0.5-hour post RE, 1-hour post RE, 2-hour post RE, 4-hour post RE and 6-hour post RE
Secondary Outcomes (1)
Estrogen concentrations in women in each trial
at rest immediately prior to HC ingestion
Study Arms (4)
1.Trial for young male participants: Consuming hydrolyzed collagen (HC) with reistance exercise
EXPERIMENTALYoung male participants consumed one of three different HC doses (0 grams, 15 grams, or 30 grams) with 4 sets of 10 repetitions of barbell back squat exercise at 10-repetition maximum load in a random order and a seven-day wash-out period interspersed between each trial.
2.Trial for young female participant: Consuming hydrolyzed collagen (HC) with reistance exercise
EXPERIMENTALThe intervention procedure is exactly same as Arm 1 except for the number of visits. Young female participant was asked to visit the laboratory on four occasions during two consecutive months. Therefore, there were two trials in each month, where female participants' estrogen level was lower (i.e., onset of menses) or higher (i.e., ovulation). Dates for the trials were determined based on self-report of onset of menses and previous menstrual cycle length.
3.Trial for older male participants: Consuming hydrolyzed collagen (HC) with reistance exercise
EXPERIMENTALThe age range of older male participants was 40 - 65 years. The intervention procedure is exactly same as Arm 1
4.Trial for older female participants: Consuming hydrolyzed collagen (HC) with reistance exercise
EXPERIMENTALThe age range of older female participants was 40 - 65 years. The intervention procedure is exactly same as Arm 2
Interventions
Each trial lasts for seven hours and while participants consumed HC, performed resistance exercise and rested, 10 x 5 mL blood samples were collected from a superficial forearm vein using a cannula. All trials were performed at the same time of day (08:00 - 15:00). Different doses of HC (0 grams, 15 grams and 30 grams) and 50 milligrams vitamin C were dissolved with 250 milliliter water in an opaque bottle. To match calories of 30 grams HC, 34.1 grams and 15.4 grams maltodextrin was used in 0 grams HC and 15 grams HC respectively. Also to mask any potential difference in HC doses, 4 grams non-caloric sweetener was used in all HC doses. The details of nutritoinal supplements used are as follows: Hydrolysed collagen (Myprotein, Cheshire, UK), Vitamin C powder (Holland and Barrett Retail Limited, Warwickshire, UK), Maltodextrin (Myprotein, Cheshire, UK), and Non-caloric sweetener (Truvia®, SilverSpoon, London, UK)
Each trial lasts for seven hours and while participants consumed HC, performed resistance exercise and rested, 10 x 5 mL blood samples were collected from a superficial forearm vein using a cannula. All trials were performed at the same time of day (08:00 - 15:00). Different doses of HC (0 grams and 30 grams) and 50 milligrams vitamin C were dissolved with 250 milliliter water in an opaque bottle. To match calories of 30 grams HC, 34.1 grams maltodextrin was used in 0 grams HC. Also to mask any potential difference in HC doses, 4 grams non-caloric sweetener was used in all HC doses. The details of nutritoinal supplements used are as follows: Hydrolysed collagen (Myprotein, Cheshire, UK), Vitamin C powder (Holland and Barrett Retail Limited, Warwickshire, UK), Maltodextrin (Myprotein, Cheshire, UK), and Non-caloric sweetener (Truvia®, SilverSpoon, London, UK)
Eligibility Criteria
You may qualify if:
- At least 12 months experienced in resistance exercise (regular back squat experience)
- Free from musculoskeletal injury
- Nullipara (a woman who has never given birth) (only for young female participatns)
You may not qualify if:
- Having a history of patellar tendon pathology
- Vegan
- Consumed nutritional supplements or medication purported to have beneficial effects on muscle-tendon properties (e.g. antioxidants, protein, etc.)
- Had a sustained a lower limb injury in the previous six months
- Smoker/vaper
- \<18 or \>40 years old (only for young participants)
- \<40 ro \>65 years old (only for older participants)
- Having an irregular menstrual cycle (only for young female participants)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Rob Erskinelead
- University of East Angliacollaborator
Study Sites (1)
Dr Rob Erskine
Liverpool, L3 3AF, United Kingdom
Study Officials
- STUDY DIRECTOR
Robert M. Erskine, PhD
Liverpool John Moores University
- PRINCIPAL INVESTIGATOR
Joonsung Lee, MSc
Liverpool John Moores University
- PRINCIPAL INVESTIGATOR
Christopher Nulty
Liverpool John Moores University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Masking Details
- Before commencing each experimental trial, a laboratory technician (independent to the study) made up the three doses of hydrolyzed collagen (HC) and randomly assigned the order of HC dose (Excel 2016, Microsoft, Washington, USA) for each participant. Also, for each trial, the technician recorded the date, randomly allocated trial number (1, 2 or 3) and corresponding HC dose to blind the investigator.
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Reader in Neuromuscular Physiology
Study Record Dates
First Submitted
May 26, 2023
First Posted
July 6, 2023
Study Start
January 1, 2019
Primary Completion
August 30, 2019
Study Completion
April 30, 2023
Last Updated
July 6, 2023
Record last verified: 2023-06
Data Sharing
- IPD Sharing
- Will not share
No plan to share