Exercise Induced Muscle Damage Post Dance and Sprint Specific Exercise in Females

NCT ID: NCT03284450

Last Updated: 2017-09-15

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 29 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-04-30
• Study Completion Date: 2014-06-30

Brief Summary

There is a paucity of studies investigating exercise-induced muscle damage (EIMD) in females and only one in response to dance-type exercise. This study aimed to firstly elucidate the physiological profile of EIMD following a dance-specific protocol, and second to compare the magnitude of damage to that experienced following a sport-specific protocol in physically active females.

Detailed Description

Twenty nine female recreational dancers from a University dance team volunteered to take part in the study. A 3-day food diary and activity log completed prior to testing determined that there were no differences in physical activity levels or energy and macronutrient intakes between participants. Subjects were asked to replicate their reported diets as closely as possible throughout the testing period. A menstrual cycle questionnaire was also completed in order to determine menstrual cycle phase; all testing took place during the early/mid luteal phase.

Participants were randomly assigned to two exercise groups designed to induce EIMD; either a dance-specific protocol (DPFT) or a sport-specific repeated sprint protocol (SSRS). Participants completed the DPFT (n=15) or SSRS (n=14) and a battery of commonly used muscle damage indices were measured pre, immediately post and 24-, 48-, and 72 h post muscle damage. These were; delayed onset muscle soreness (DOMS), limb girth, countermovement jump height (CMJ), reactive strength index (RSI), maximal voluntary isometric contraction (MVC) sprint performance, and total creatine kinase (CK) activity. Participants were tested at the same time on subsequent days (± 1 h) to account for diurnal variation. Participants were asked to avoid strenuous exercise, alcohol, caffeine, nutritional supplements and any anti-inflammatory drugs or alternative treatments for the duration of the study.

Statistical software (IBM SPSS v21, IBM, USA) was used for inferential analysis and significance was accepted at the P < .05 a priori. Mauchley's test assessed the sphericity of the data and where appropriate, violations were corrected using the Greenhouse-Geisser. To explore our first objective, a one-way analysis of variance (ANOVA) with repeated measures (group, 1; time, 5) was performed on all variables in order to analyse the muscle damage response to the DPFT. For the second aim a two-way ANOVA with repeated measures (group, 2; time, 5) was used for all variables to allow for comparison of the muscle damage response between the DPFT and the SSRS. Where appropriate LSD post-hoc analysis was performed.

Conditions

Exercise Induced Muscle Damage

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: NONE

Study Groups

Dance performance fitness test (DPFT)

Group Type: EXPERIMENTAL

DPFT

Intervention Type: OTHER

The DPFT described previously (Redding et al., 2009) involves the repetition of a 'dance phrase' representative of contemporary dance, with each phrase separated by a 2 minute rest period. For the present study the originally described test was extended; the adapted protocol involved 10 x 1 minute movement phrases, each separated by 2 minutes rest.

Sport specific repeated sprints (SSRS)

Group Type: ACTIVE_COMPARATOR

SSRS

Intervention Type: OTHER

The SSRS (Howatson \& Milak, 2009) involved 15 x 30 m sprints with a rapid 10 m deceleration phase, with each sprint departing every 65 seconds.

Interventions

DPFT

The DPFT described previously (Redding et al., 2009) involves the repetition of a 'dance phrase' representative of contemporary dance, with each phrase separated by a 2 minute rest period. For the present study the originally described test was extended; the adapted protocol involved 10 x 1 minute movement phrases, each separated by 2 minutes rest.

Intervention Type: OTHER

SSRS

The SSRS (Howatson \& Milak, 2009) involved 15 x 30 m sprints with a rapid 10 m deceleration phase, with each sprint departing every 65 seconds.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• physically active
• at least 3 years experience in dance training

Exclusion Criteria

• presence of any medical or physical conditions, either chronic or sustained in the last 3 months which would make participation difficult or harmful to the participant
• eg. history of cardiovascular disease and musculoskeletal disorders

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 25 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: Yes

Sponsors

Northumbria University

OTHER

Sponsor Role: lead

Responsible Party

Glyn Howatson

Reader - Human and Applied Physiology

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Emma J Stevenson, PhD

Role: PRINCIPAL_INVESTIGATOR

Northumbria University

Other Identifiers

NUMB1

Identifier Type: -

Identifier Source: org_study_id