Sports Sciences Commons^™

Returners Exhibit Greater Jumping Performance Improvements During A Peaking Phase Compared With New Players On A Volleyball Team, Caleb D. Bazyler, Satoshi Mizuguchi, Ashley A. Kavanaugh, John J. Mcmahon, Paul Comfort, Michael H. Stone

Caleb D. Bazyler

Purpose: To determine if jumping-performance changes during a peaking phase differed among returners and new players on a female collegiate volleyball team and to determine which variables best explained the variation in performance changes.

Methods: Fourteen volleyball players were divided into 2 groups—returners (n = 7) and new players (n = 7)—who completed a 5-wk peaking phase prior to conference championships. Players were tested at baseline before the preseason on measures of the vastus lateralis cross-sectional area using ultrasonography, estimated back-squat 1-repetition maximum, countermovement jump height (JH), and relative peak power on a force platform. Jumping performance, rating of perceived …

Identifying A Test To Monitor Weightlifting Performance In Competitive Male And Female Weightlifters, S. Kyle Travis, Jacob R. Goodin, George K. Beckham, Caleb D. Bazyler

Caleb D. Bazyler

Monitoring tests are commonly used to assess weightlifter’s preparedness for competition. Although various monitoring tests have been used, it is not clear which test is the strongest indicator of weightlifting performance. Therefore, the purpose of this study was to (1) determine the relationships between vertical jump, isometric mid-thigh pull (IMTP) and weightlifting performance; and (2) compare vertical jumps to IMTP as monitoring tests of weightlifting performance in a large cohort of male and female weightlifters. Methods: Fifty-two competitive weightlifters (31 males, 21 females) participated in squat and countermovement jump testing (SJ, CMJ), and IMTP testing performed on force plates. All …

Preliminary Scale Of Reference Values For Evaluating Reactive Strength Index-Modified In Male And Female Ncaa Division I Athletes, Christopher J. Sole, Timothy J. Suchomel, Michael H. Stone

ETSU Faculty Works

The purpose of this analysis was to construct a preliminary scale of reference values for reactive strength index-modified (RSImod). Countermovement jump data from 151 National Collegiate Athletic Association (NCAA) Division I collegiate athletes (male n = 76; female n = 75) were analyzed. Using percentiles, scales for both male and female samples were constructed. For further analysis, athletes were separated into four performance groups based on RSImod and comparisons of jump height (JH), and time to takeoff (TTT) were performed. RSImod values ranged from 0.208 to 0.704 and 0.135 to 0.553 in males and females, respectively. Males had greater RSImod …

Returners Exhibit Greater Jumping Performance Improvements During A Peaking Phase Compared With New Players On A Volleyball Team, Caleb D. Bazyler, Satoshi Mizuguchi, Ashley A. Kavanaugh, John J. Mcmahon, Paul Comfort, Michael H. Stone

ETSU Faculty Works

Purpose: To determine if jumping-performance changes during a peaking phase differed among returners and new players on a female collegiate volleyball team and to determine which variables best explained the variation in performance changes.

Methods: Fourteen volleyball players were divided into 2 groups—returners (n = 7) and new players (n = 7)—who completed a 5-wk peaking phase prior to conference championships. Players were tested at baseline before the preseason on measures of the vastus lateralis cross-sectional area using ultrasonography, estimated back-squat 1-repetition maximum, countermovement jump height (JH), and relative peak power on a force platform. Jumping performance, rating of perceived …

Identifying A Test To Monitor Weightlifting Performance In Competitive Male And Female Weightlifters, S. Kyle Travis, Jacob R. Goodin, George K. Beckham, Caleb D. Bazyler

ETSU Faculty Works

Monitoring tests are commonly used to assess weightlifter’s preparedness for competition. Although various monitoring tests have been used, it is not clear which test is the strongest indicator of weightlifting performance. Therefore, the purpose of this study was to (1) determine the relationships between vertical jump, isometric mid-thigh pull (IMTP) and weightlifting performance; and (2) compare vertical jumps to IMTP as monitoring tests of weightlifting performance in a large cohort of male and female weightlifters. Methods: Fifty-two competitive weightlifters (31 males, 21 females) participated in squat and countermovement jump testing (SJ, CMJ), and IMTP testing performed on force plates. All …