The Anabolic and Catabolic Effect of Loaded and Unloaded Exercise on Articular Cartilage Health
Study Details
Study Description
Brief Summary
The serum concentration of cartilage oligomeric matrix protein (sCOMP) has been considered a mechano-sensitive biomarker of articular cartilage turnover, and N-propeptide of type II collagen (PIIANP) is a proposed biomarker of type II collagen synthesis. Few studies have investigated both the anabolic and turnover response of articular cartilage as a result of acute changes in body weight mass during exercise. Using a repeated measures cross-over design, fifteen healthy adults (age 18-30 years) performed three, 30-minute bouts of treadmill walking exercise under 3 loading conditions: (1) control (no alteration to body mass); (2) loaded (12% increase in body mass using a weighted vest); and (3) unloaded (12% decrease in body mass using lower body positive pressure). Venous blood was collected before, immediately after, and 15 and 30 minutes after exercise to investigate cartilage turnover (sCOMP) and anabolism (PIIANP).
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Control The control condition did 30 minutes of walking exercise with their own body mass. |
Other: Control Condition
Control (no alteration to body mass).
|
Experimental: +12% Body Mass The +12% body mass condition did 30 minutes of walking exercise wearing a weighted vest with +12% of their body mass applied. |
Other: +12% Body Mass
Loaded walking exercise (12% increase in body mass using a weighted vest).
|
Experimental: -12% Body Mass The -12% body mass condition did 30 minutes of walking exercise using a lower body positive pressure treadmill with -12% of their body mass applied. |
Other: -12% Body Mass
Unloaded walking exercise (12% decrease in body mass using lower body positive pressure).
|
Outcome Measures
Primary Outcome Measures
- Serum cartilage oligomeric matrix protein (sCOMP) [sCOMP was measured at baseline, immediately post, and 15- and 30-minutes post exercise.]
The systemic blood serum concentration of sCOMP was evaluated in all participants under the 3 conditions in a crossover trial.
- N-propeptide of type II collagen (PIIANP) [PIIANP was measured at baseline, immediately post, and 15- and 30-minutes post exercise.]
The systemic blood serum concentration of PIIANP was evaluated in all participants under the 3 conditions in a crossover trial.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Healthy
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18-30 years old
Exclusion Criteria:
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Traumatic injury to the lower extremity in the past year
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Hip, knee, or ankle surgery
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Radiographic evidence of joint degeneration
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Cardiovascular disease
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Ankylosing spondylitis
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Psoriatic arthritis
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Chronic reactive arthritis
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Renal problems requiring peritoneal dialysis or hemodialysis
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Not currently using any prescription or non-prescription medications and/or nutritional supplements
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | University of Manitoba | Winnipeg | Manitoba | Canada | R3T 2N2 |
Sponsors and Collaborators
- University of Manitoba
Investigators
- Principal Investigator: Stephen M Cornish, PhD, University of Manitoba
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- HS22322