Lumbosacral Muscle Sensitivity & Pressure Pain Threshold After Kettlebell Swings

Not Applicable

Completed

• Conditions: Muscle Soreness; Muscle Weakness; Muscle Tenderness
• Interventions: Other: Control; Other: Kettlebell Swing; Other: Isometric Hold

• Registration Number: NCT05607212
• Lead Sponsor: University of Central Florida

Brief Summary

The primary purpose of the study is to assess the muscle contractility and sensitivity of lumbar erector spinae, biceps femoris, and gluteus maximus short-term response to Tabata kettlebell swing protocol.

Detailed Description

While there are many studies that combine resistance exercise with TMG, there are no studies that combine TMG or pressure algometry with an isometric hold of a kettlebell. This will be the first study that will observe the relationship between these specific variable

It has also been noted that kettlebell swings have an acute effect on muscle sensitivity. A study conducted by Hanney et al. (2017) demonstrated that there was an increase in the mean lumbosacral muscle pain pressure threshold across three locations measured.

Research by Hanney et al. is also the only article that has combined kettlebell swings and pressure algometry. As mentioned earlier, these researchers measured the effects of kettlebell swings on pressure pain threshold in the quadratus lumborum, paravertebral muscles, and the piriformis after an acute bout of 2 handed kettle-bell swings. Compared to a control group, the kettlebell swing group had significantly higher pressure pain thresholds for all three of the testing sites.

Researchers believe this may be due to an increased hyperemia-state post exercise, where the increased blood flow and vasodilation flushes out muscle metabolites. Clearing of these metabolites which normally activate chemo-nociceptive free nerve endings, are theorized to decrease pain sensitivity. This post-exercise hyperemia, leading to decreased pressure pain thresholds, may be directly related to the changes in contractility of the muscle after resistive exercise.

Study Timeline

• Study First Submitted: 2022-10-25
• Study First Submitted QC: 2022-11-04
• Study First Posted: 2022-11-07
• Study Start: 2022-11-14
• Primary Completion: 2024-03-14
• Study Completion: 2024-03-14
• Status Verified: 2024-06
• Last Update Submitted: 2024-06-03
• Last Update Posted: 2024-06-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 90

Inclusion Criteria

• Participant is a male or female between the ages of 18 and 35 years old
• Participant is asymptomatic for low back pain

Exclusion Criteria

• Participant is unable to participate in physical activity, as determined by the PAR-Q+
• Have any injuries or other chronic pain that would prevent them from performing a high intensity kettlebell swing protocol

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Control group	Control	participants will be educated on the benefit of a kettlebell swing.
Kettlebell Swing Group	Kettlebell Swing	Participants will perform two-handed kettlebell swings
Active Comparator Group	Isometric Hold	Participants will perform an isometric hold of a kettlebell for 30 seconds followed by 30 seconds of rest for a total of 10 intervals.

Primary Outcome Measures

Name	Time	Method
Tensiomyography	immediately after the intervention	Electrical stimulator (TMG-S1) for lumbar erector spinae, biceps femoris, and gluteus
Pressure Algometry	immediately after the intervention	Document pressure change from comfortable pressure to a little unpleasant pain. The measurement will then be collected at the quadratus lumborum, paravertebral muscles, and piriformis.

Trial Locations

Locations (1)

University of Central Florida; 🇺🇸 Orlando, Florida, United States