Date of Graduation

8-2014

Document Type

Thesis

Degree Name

Master of Science in Kinesiology (MS)

Degree Level

Graduate

Department

Health, Human Performance and Recreation

Advisor

Matthew Ganio

Committee Member

Tyrone Washington

Second Committee Member

Stavros Kavouras

Keywords

Circuit Workout, Kettlebell, Thermoregulation

Abstract

Purpose: To compare the physiological effects of a single kettlebell workout to a high-resistance circuit workout in resistance-trained males. Methods: 12 resistance trained healthy males (age: 24 ± 2.97 years; height: 1.75 ± 0.064 m; body mass: 75.99 ± 8.46 kg) participated in this study. Participants had a familiarization visit and two subsequent experimental visits (kettlebell workout; circuit workout). The kettlebell workout consisted of 12-minutes of standardized kettlebell swings. The circuit workout consisted of three sets of 6 repetitions of smith machine squats, bench press, leg curl, and lat pulldown. Heart rate, rectal temperature, skin temperature, blood lactate, rating of perceived exertion, muscle pain, and thermal sensation were measured throughout. Statistical analysis was done using one-way repeated measures ANOVA and a one-sampled T-test both with alpha set at 0.05. Results: More work was performed in the kettlebell swing workout compared to circuit workout (p<0.006). Heart rate was significantly higher throughout exercise for kettlebell (p<0.001) compared to circuit workout. Core temperature was significantly higher post-exercise in kettlebell compared to circuit workout (KB: Post-exercise = 38.03 ± 0.342 ˚C; CW: Post-exercise = 37.43 ± 0.341 ˚C, respectively; p<0.008). Rating of perceived exertion, and thermal sensation were significantly higher during kettlebell than circuit workout (both p<0.05). Muscle pain was significantly higher the last two measurements of exercise in kettlebell than the circuit workout (p<0.006). Conclusion: The findings show that the kettlebell swing workout tended to be perceptually harder, increasing feeling of heat stress, muscle pain, and had a higher sustained heart rate during exercise compared to the circuit workout.

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