Injuires associated with Zumba fitness classes

NewsBot · Dec 10, 2013

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A Survey of Musculoskeletal Injuries Associated with Zumba
Jill Inouye MD; Andrew Nichols MD; Gregory Maskarinec PhD;
and Chien-Wen Tseng MD, PhD
Hawai‘i Journal of Medicine & Public Health December 2013, Volume 72, No. 12, ISSN 2165-8218

Zumba is a highly popular Latin-inspired dance fitness program with ~14 million participants in 150 countries. However, there is little published data on the rates or types of injuries among participants. We surveyed a convenience sample of 49 adults (100% participation) in 5 Zumba classes in Hawai‘i. Participants described any prior Zumba-related injuries. We used t-tests and logistic regression to determine if participant demographics or intensity of Zumba classes were associated with injuries. Participants were mostly female (82%), averaged 43.9 years of age (range 19 to 69 years), and took an average of 3 classes/week (1-2 hours/class) for an average of 11 months. Fourteen participants (29%) reported 21 prior Zumba-related injuries. Half of the 14 injured sought care from medical providers for their injuries. Of the 21 injuries, the most frequently injured sites were knees (42%), ankles (14%), and shoulders (14%). Participants with Zumba-related injuries did not differ significantly in age, months of Zumba, or hours/class compared to those who did not experience injuries. However, participants who reported injuries took significantly more classes/week (3.8 versus 2.7 classes, P = .006) than non-injured participants. In logistic regression, taking more classes/week remained significantly associated with injuries (odds ratio 3.6 [95% confidence interval 1.5 – 8.9, P = .006]) after controlling for age, gender, months of Zumba, and hours/class. Given Zumba’s health benefits, our finding that 1 in 4 Zumba participants have experienced injuries indicates the need to improve Zumba routines, instructor training, and health provider counseling to reduce injury risk.
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Admin2 · Dec 10, 2013

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Admin2 · Dec 10, 2013

Zumba

Exercise program

Zumba dancing at Roanoke College in the United States, 2012

Zumba is a fitness program that involves cardio and Latin-inspired dance. It was founded by Colombian dancer and choreographer Beto Pérez in 2001.^[1] It currently has 200,000 locations, with 15 million people taking classes weekly, and is located in 180 countries.^[2]^[3] Zumba is a trademark owned by Zumba Fitness, LLC.

^ Alford, Henry (11 January 2012). "Zoom In, Zumba Away". The New York Times. ISSN 0362-4331. Retrieved 23 January 2022.

^ Clark, Cammy (20 February 2012). "Zumba's Latin rhythms on the move in the fitness world". The Seattle Times. Retrieved 23 January 2022.

^ "Learn about Zumba Fitness | Zumba Classes". www.zumba.com. Retrieved 25 March 2023.

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NewsBot · Apr 29, 2014

EMG Comparison Of Gluteus Maximus And Biceps Femoris During Zumba®, Stair Stepper, And Elliptical
Brittany Jelks, Trishonna T. Kennedy, Carmen Walker, Barney LeVeau, FACSM.
ACSM Meeting; May 2014

PURPOSE: To assess whether Zumba®(Z), stair stepper (SS), or elliptical (E), would elicit the greatest muscle contraction from the Gluteus Maximus (GM) and Biceps Femoris (BF). A significant difference in electromyographic activity (EMG) in the muscles studied was expected.

METHODS: Twenty female volunteers (age= 24±2 yr; ht 163.7±7.4 cm; mass 60.3±10.3 kg) participated in this study. All participants attended two sessions: a practice session and a data collecting session. The practice session was held to familiarize the subjects with exercises they were expected to perform. During the data collecting session, pre- and post-activity heart rate (HR) and blood pressure (BP) were collected. EMG was used to compare muscle activity occurring during Z, SS, and E exercises. A Noraxon telemetry EMG system was used to collect, amplify, and analyze the electrical signals. Skin was cleaned and surface electrodes were applied to the muscle bellies of right GM and BF. Maximal voluntary isometric contractions (MVIC) were recorded using a hand-held dynamometer. All subjects were randomly assigned an exercise order. There was no resistance added to the SS or the E. A metronome was set for 100 beats per minute to standardize the pace of the SS and E. The subjects performed a one minute warm up followed by one minute of exercise. During the exercise, data were collected for 10 seconds for SS and E, and 20 seconds for Z. Peak electrical amplitude from each muscle
was calculated as a percentage of the MVIC.

RESULTS: The GM produced the greatest muscle activity during SS (81.85 ± 24.14%), while E
(79.37 ± 19.61%) and Z (75.31 ± 26.79%) peak amplitudes were lower. The BF produced similar peak EMG amplitudes during Z (77.72 ± 25.42%) and SS (77.42 ± 23.83%) with E (70.99 ± 27.17%) producing the lowest muscle activity. There was no statistical difference (p>0.05) noted for GM and BF between the three exercises. Zumba ® elicited the highest HR (p< 0.001) and systolic BP (p< 0.001) following the three exercises.

CONCLUSIONS: Since the mean %MVIC was greater than 60% for the GM and BF during the 3 exercise regimens, novice individuals may use these different exercises to strengthen both muscles as part of a wellness and prevention program.
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