Load During Sweep Rowing and the Influence on the Posture

Influence of Regularly Repeated Asymmetric Load on the Locomotor System in Sweep Rowers

The aim is to assess the influence of asymmetric training on the locomotor system in sweep rowers. To analyse possible changes objectively, the axial position of the hull will be assessed using Moiré topography, and the symmetry of foot loading will be monitored with a pedobarograph. Furthermore, the Visual Analog scale and Cluster of Laslett will determine whether an asymmetric load can provoke pain in the lumbar region or cause a blockage in the SI joint. In the experimental study, there will be three different groups of participants. Selected sweep rowers will make the first study group. The second group will consist of scull rowers, and the last control group will consist of people with no experience with rowing. The selected participants will undergo the first measurement at the turn of the spring and summer seasons when intensive preparation for rowing competitions begins, in which sweep rowers train mainly on water and asymmetrically. The measurement results in the three groups will be further compared with each other to evaluate whether statistically significant differences can be found.

Study Overview

• Status: Completed
• Conditions: Postural; Defect; Muscle Hypertonia; Postural Scoliosis
• Intervention / Treatment: Diagnostic test: DIERS formetic 4D

Detailed Description

Methods: 21 sweep rowers, 20 scull rowers and 23 non-rowing peers were enrolled on the study of this diploma thesis. Each subject was assessed using DIERS formetic 4D and DIERS pedoscan devices. Additionally, participants in each group were assessed by FAIR test, Cluster of Laslett, trigger point palpation of the m. piriformis and Visual analogue scale were used to assess pain intensity in the lumbar region.

• Study Type: Observational
• Enrollment (Actual): 64

Contacts and Locations

Study Locations

• Czechia
  • Praha, Czechia
    • Charles University, Faculty of physical education and sport

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 25 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

Rowers training in the junior and senior category of competitive rowing together with probands from the general population and students of UK FTVS who have never rowed.

Description

Inclusion Criteria for rowers:

• Training and racing exclusively in the unpaired disciplines of competitive rowing in the Czech Republic for a group of unpaired rowers
• Training and racing exclusively in the pairs disciplines of competitive rowing in the Czech Republic for the group of pairs rowers
• Dedication to rowing for more than three years
• Frequency of training at least three times a week or more

Inclusion Criteria for non-rowers:

-Engaging in sports recreationally without higher intensity training (less than three times a week) or at all.

Exclusion Criteria for rowers:

• The presence of lumbar spine pain at a time when the athlete was not yet exercising
• Presence of musculoskeletal pain caused by a condition for which the athlete is actively being treated (Morbus Bechterev, spondylodiscitis, etc.)
• Presence of a previously diagnosed internal, orthopaedic or neurological disease
• Lateral spinal misalignment caused by a previously diagnosed disease (congenital scoliosis, idiopathic scoliosis, Morbus Scheuermann, etc.)

Exclusion Criteria for non-rowers:

• Active participation in sports associated with an asymmetric load, such as tennis, floorball, hockey and others (training once a week or more)
• Presence of pain caused by a disease for which the person is actively treated (Morbus Bechterev, spondylodiscitis, etc.)
• Presence of a previously diagnosed internal, orthopaedic or neurological disease
• Lateral spinal misalignment caused by a previously diagnosed disease (congenital scoliosis, idiopathic scoliosis, Morbus Scheuermann, etc.)

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Other

Number of groups / cohorts

3

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
sweep rowers; Each subject was assessed using DIERS formetic 4D and DIERS pedoscan devices. Additionally, participants in each group were assessed by FAIR test, Cluster of Laslett, trigger point palpation of the m. piriformis and Visual analogue scale.	Diagnostic test: DIERS formetic 4D; Assessment of mentioned tests and their comparison.; Other Names: trigger point palpation of the m. piriformis; DIERS pedoscan device; Visual analogue scale; FAIR test; Cluster of Laslett test
scull rowers; Each subject was assessed using DIERS formetic 4D and DIERS pedoscan devices. Additionally, participants in each group were assessed by FAIR test, Cluster of Laslett, trigger point palpation of the m. piriformis and Visual analogue scale.	Diagnostic test: DIERS formetic 4D; Assessment of mentioned tests and their comparison.; Other Names: trigger point palpation of the m. piriformis; DIERS pedoscan device; Visual analogue scale; FAIR test; Cluster of Laslett test
control non-rowers; Each subject was assessed using DIERS formetic 4D and DIERS pedoscan devices. Additionally, participants in each group were assessed by FAIR test, Cluster of Laslett, trigger point palpation of the m. piriformis and Visual analogue scale.	Diagnostic test: DIERS formetic 4D; Assessment of mentioned tests and their comparison.; Other Names: trigger point palpation of the m. piriformis; DIERS pedoscan device; Visual analogue scale; FAIR test; Cluster of Laslett test

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Rotation deviation of the trunk at the level of L3 vertebrae and sway area of COP	observation of changed position of the trunk and pelvis	one-time measurement
Scoliotic angle in sweep rowers during walking	observation of rotational deviation of the trunk during walking	one-time measurement
Trunk deviation in the frontal plane and COP deviation	observation of later-lateral deviation of he trunk	one-time measurement
Magnitude of scoliotic angle	observation of the level of scoliotic deviation	one-time measurement
Cluster of Laslett testing	observation of the mobility of sacroiliac joint	one-time measurement

Collaborators and Investigators

• Sponsor: Charles University, Czech Republic
• Investigators: Study Director: Jitka Malá, PhDr., Charles University Prague, Czech Republic

Study record dates

Study Major Dates

• Study Start (Actual): July 1, 2021
• Primary Completion (Actual): February 28, 2022
• Study Completion (Actual): March 31, 2022

Study Registration Dates

• First Submitted: December 31, 2022
• First Submitted That Met QC Criteria: January 5, 2023
• First Posted (Estimate): January 16, 2023

Study Record Updates

• Last Update Posted (Estimate): January 16, 2023
• Last Update Submitted That Met QC Criteria: January 5, 2023
• Last Verified: January 1, 2023

More Information

Terms related to this study

• Keywords: sweep rowing; pedobarography; moiré topography; asymmetrical loading
• Additional Relevant MeSH Terms: Nervous System Diseases; Neurologic Manifestations; Musculoskeletal Diseases; Neuromuscular Manifestations; Spinal Diseases; Bone Diseases; Spinal Curvatures; Scoliosis; Muscle Hypertonia
• Other Study ID Numbers: Mikulík, rowing

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No