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DIFFERENCES IN UNILATERAL CHEST PRESS MUSCLE ACTIVATION ON A STABLE VERSUS UNSTABLE SURFACE WHILE HOLDING ONE VERSUS TWO DUMBBELLS

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Training the bench press exercise on a traditional flat bench does not induce a level of instability as seen in sport movements and activities of daily living. Because of this, many new types of equipment have been created in an attempt to induce instability, such as the COR Bench. 15…

Training the bench press exercise on a traditional flat bench does not induce a level of instability as seen in sport movements and activities of daily living. Because of this, many new types of equipment have been created in an attempt to induce instability, such as the COR Bench. 15 males and 7 females between the ages of 18 and 30 were recruited for the present study, which tested two forms of instability: using one dumbbell rather than two, and lifting on the COR bench compared to a flat bench. Thusly, EMG was used to measure muscle activity in four separate conditions of unilateral bench press movements: on a flat bench with one dumbbell, on a flat bench with two dumbbells, on the COR Bench with one dumbbell, and on the COR Bench with two dumbbells. Results indicated that lifting with one dumbbell compared to two dumbbells on the flat bench significantly increased muscle activity across all four muscles being analyzed (pectoralis major, p = .005; middle trapezius, p = .008; external obliques, p = .004; and internal obliques, p = .003), but lifting with one dumbbell compared to two dumbbells on the COR Bench only significantly increased muscle activity in the middle trapezius (p = .001), external obliques(p = . 032), and internal obliques (p = .001). The only muscle to exhibit a significant increase in muscle activity when going from one dumbbell on the flat bench to one dumbbell on the COR Bench was the middle trapezius (p = .010). These results imply that the COR Bench itself does not increase muscle activity as much as switching from two dumbbells to one dumbbell, regardless of the bench being used.
ContributorsPatterson, Jeffrey (Author) / Harper, Erin (Thesis director) / Broman, Tannah (Committee member) / Cataldo, Donna (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor)
Created2013-12
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Effectiveness of Physical Therapy Modalities: A Quantitative and Qualitative Review

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Physical therapy modalities are passive tools that are used in physical therapy clinics, beside the exercise program and manual therapy, that promote blood flow, decrease inflammation, and improve range of motion and function. Electrical stimulation, ultrasound, ice, and heat were analyzed in this review. The purpose of this quantitative review…

Physical therapy modalities are passive tools that are used in physical therapy clinics, beside the exercise program and manual therapy, that promote blood flow, decrease inflammation, and improve range of motion and function. Electrical stimulation, ultrasound, ice, and heat were analyzed in this review. The purpose of this quantitative review is to use the research that has been conducted over the past 30 years to determine if physical therapy modalities are effective at decreasing inflammation, increasing range of motion and function, decreasing pain, and to draw a conclusion about whether or not they should still be used on patients today. Systematic reviews and meta analysis were analyzed and compared to qualitative surveys and patient/therapist surveys conducted in this study to determine if ultrasound, electrical stimulation, ice, and heat were effective. The results showed that both electrical stimulation and ultrasound were effective for decreasing pain, increasing functionality, and decreasing inflammation (Ashrafi, 2017; Bistolfi, 2018; Ferronato, 2017; Fuentes, 2010; Haile, 2021; Yu, 2015). However, the types of injuries, frequency, and duration of the modalities used still need to be further researched to understand how to maximize the effectiveness of these modalities. Ice therapy was significantly effective at decreasing inflammation, while heat therapy was significantly effective at decreasing pain, both in the short term (Wang et al., 2021).
ContributorsMillon, Victoria (Author) / Hollingsworth, Rachel (Thesis director) / Cataldo, Donna (Committee member) / Barrett, The Honors College (Contributor) / College of Health Solutions (Contributor)
Created2021-12