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To investigate the immediate and short-term effects of a thoracic spinal manipulation in influencing hormonal levels and calf muscle blood flow in people with Achilles tendinopathy.

Efficacy of thoracic spinal manipulation in eliciting immediate and short term changes in salivary cortisol, salivary testosterone, T/C ratio, calf muscle and Achilles tendon blood flow in people with Achilles tendinopathy: A cross-over controlled trial.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12616001267448
Acronym
TMAT
Enrollment
24
Registered
2016-09-09
Start date
2017-01-09
Completion date
2017-07-28
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The goal of this trial is to determine whether there are immediate and short term changes in T/C ratio, calf and Achilles tendon blood flow following a thoracic spinal manipulation in people with Achilles tendinopathy. The hypothesis is that there will be changes in primary outcome measures of interest (T/C ratio and blood flow) which will be significantly different in the SM group compared to sham group. Findings from this trial will inform future larger RCTs planned in this area. .

Interventions

The intervention is a thoracic spinal manipulation (SM) to the mid thoracic spine (T3-T6). Briefly, the procedure involves the application of high velocity low amplitude (HVLA) thrust which will take approximately 2-3 minutes (from positioning to delivery of thrust). Depending on group allocation, participants will receive a SM during one of their two visits. The two visits are separated by a duration of one week. The experiment will take place in an environmental chamber where temperature (2

The intervention is a thoracic spinal manipulation (SM) to the mid thoracic spine (T3-T6). Briefly, the procedure involves the application of high velocity low amplitude (HVLA) thrust which will take approximately 2-3 minutes (from positioning to delivery of thrust). Depending on group allocation, participants will receive a SM during one of their two visits. The two visits are separated by a duration of one week. The experiment will take place in an environmental chamber where temperature (24 degrees Celsius) and humidity (40%) will be kept constant. The intervention will be performed by a manual therapist with more than 5 years of experience. The whole procedure in the environmental chamber ranging from pre-intervention data collection to post-intervention (5 and 30 minutes) data collection will take approximately 45 minutes. Participants will then collect salivary samples at home 6 hours post-intervention.

Sponsors

University of Otago
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

Aged 18 to 60; with a diagnosis of Achilles Tendinopathy based upon accepted diagnostic criteria by a physiotherapist or physician.

Exclusion criteria

Any contra-indications to SM such as rheumatoid arthritis; co-morbid musculoskeletal or serious conditions which may confound treatment or anticipated recovery such as cancer; any bone weakness or thoracic spine conditions such as osteoporosis and ankylosing spondylitis; steroid injections or surgery for the condition; The Victorian Institute of Sports Assessment - Achilles questionnaire (VISA-A) score greater than 80.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026