Resistance Exercise and Hydrolyzed Collagen Supplementation

Not Applicable

Completed

• Conditions: Diet, Food, and Nutrition

• Registration Number: NCT05932771
• Lead Sponsor: Rob Erskine

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.

Detailed Description

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.

Healthy young and older males and females ingested 0 grams, 15 grams or 30 grams HC with 50 milligrams vitamin C 1h prior to performing four sets' barbell back-squat RE at 10-repetition maximum load, after which they rested for six hours. Blood samples were collected throughout each trial to analyse procollagen type Ⅰ N-terminal propeptide (PⅠNP, a biomarker of collagen synthesis) and β-isomerized C-terminal telopeptide of type I collagen (β-CTX, a biomarker of collagen breakdown) concentration, and the concentration of 18 amino acids that constitute collagen.

This is the first study to investigate the combined effect of different doses HC with high-intensity RE on whole body collagen synthesis in healthy young and older men and women. If 30 grams HC intake with RE does augment collagen synthesis more than RE alone, this suggests that long-term HC intake with chronic RE would be beneficial for tendon health, because collagen is the most abundant protein in tendon.

Study Timeline

• Study Start: 2019-01-01
• Primary Completion: 2019-08-30
• Study Completion: 2023-04-30
• Study First Submitted: 2023-05-26
• Status Verified: 2023-06
• Study First Submitted QC: 2023-06-27
• Last Update Submitted: 2023-06-27
• Study First Posted: 2023-07-06
• Last Update Posted: 2023-07-06

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 21

Inclusion Criteria

• 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)

Exclusion Criteria

• 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)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Primary Outcome Measures

Name	Time	Method
Change in a marker of collagen synthesis	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	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.
Change in a marker of collagen breakdown	at rest immediately prior to HC ingestion and 6-hour post RE	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.
Changes in amino acids concentrations in blood	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	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.

Secondary Outcome Measures

Name	Time	Method
Estrogen concentrations in women in each trial	at rest immediately prior to HC ingestion	Concentrations of estrogen (17β-estradiol) was measured in each trial.

Trial Locations

Locations (1)

Dr Rob Erskine; 🇬🇧 Liverpool, United Kingdom