F R ID a Y , JU N E 1, 2 0 18 F-05 Thematic Poster
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S510 Vol. 49 No. 5 Supplement MEDICINE & SCIENCE IN SPORTS & EXERCISE® F-05 Thematic Poster - Fitness Assessment Conclusion: Results of the present study strongly question true equivalence and interchangeability of whole-body thresholds and BPs in the local oxygenation response Friday, June 1, 2018, 1:00 PM - 3:00 PM during RI exercise, thereby suggesting that BPs in muscle and brain oxygenation Room: CC-Lower level L100C should not be used as a replacement for classical threshold concepts. 2476 Chair: Kimberly Reich. High Point University, Burlington, 2479 Board #3 June 1 1:00 PM - 3:00 PM NC. Altered Kinematics Over a 2-minute Continuous Push- (No relevant relationships reported) up Assessment Jennifer Hewit. United States Military Academy, West Point, NY. (No relevant relationships reported) 2477 Board #1 June 1 1:00 PM - 3:00 PM Cardiometabolic Risk Factors, Muscular Fitness, and Push-ups are a common and fundamental muscular endurance exercise performed Cardiorespiratory Fitness in Apparently Healthy Young by individuals of all ages and abilities. Ensuring that the body maintains proper Adult Females positioning throughout such an activity is crucial for both optimizing performance as Ryan Tyler, Timothy A. Rengers, Samantha C. Orr, Mary A. well as minimizing the risk of injury. PURPOSE: To investigate the changes in body positioning (i.e. hand positioning and Elsesser, Evan Eschker, Tamara Hew-Butler, FACSM, Charles torso angle) throughout a standardized 2-minute continuous push-up test. METHODS: R.C. Marks, Myung D. Choi, Kristin R. Landis-Piwowar, Elise Video of the entire 2-minute push-up bout was collected for a total of 26 males (23.3 C. Brown. Oakland University, Rochester, MI. ± 6.9 years old). Of interest to the researchers was 1) Hand Height (HH) – distance the (No relevant relationships reported) hand was in relation to the shoulder, 2) Hand Width (HW) – distance between the 3rd metacarpophalangeal joint of each hand, and 3) Torso Angle (TOR) - angle of the torso Although most of the data linking physical fitness to cardiometabolic (CMB) health to the horizontal axis. Three consecutive repetitions at the start and end of the bout explores assessments related to body composition and cardiorespiratory fitness, were averaged and used for comparative analysis. Paired t-tests were used to compare emerging evidence suggests muscular fitness also plays a key role in the pathogenesis the means of the beginning and ending repetitions. An alpha level of 0.05 was used and prevention of CMB diseases. However, the majority of this research has focused throughout. RESULTS: Both HH and TOR significantly decreased by the end of the on men and have used a handgrip test to assess muscular strength which tests small bout (HH: 10.8 ± 5.4cm vs. 6.8 ± 5.6cm, p = 0.00; TOR: 24.7 ± 6.5° vs. 17.8 ± 8.8°, p muscle groups. PURPOSE: Therefore, the purpose of this study was to examine the = 0.00), while HW significantly increased (0.54 ± 0.06cm vs. 0.56 ± 0.05cm, p = 0.01). associations between individual CMB risk factors and physical fitness in apparently CONCLUSION: As participants became tired, they assumed a body position that healthy non-obese young adult females using barbell exercises involving large and likely allowed for a greater percentage of their body weight to be supported by their small muscle groups to measure muscular strength. METHODS: A total of 19 non- lower body (i.e. hands wider and closer to the shoulder with greater hip flexion).While obese [body mass index (BMI) < 30 kg/m2] females aged 22.9± 4.8 years participated this adjustment allowed them to continue the exercise, compensational patterns like in this cross-sectional study. After obtaining informed consent, each participant this should be identified and addressed in training in order to strengthen the primary was assessed for: resting heart rate and blood pressure; fasting blood biomarkers muscles targeted by the exercise (e.g. pectorals, triceps brachii and abdominals). [triglycerides, glucose, total cholesterol, high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C)]; muscular strength [1 repetition max 2480 Board #4 June 1 1:00 PM - 3:00 PM (1 RM) back squat, press, and deadlift], muscular endurance, muscular power, and Free Weight Bench Press Muscular Fitness Normative VO2max. A composite muscular strength index was calculated by dividing individual 1 RM scores by bodyweight and then transformed into z-scores. The average of these Data for Adults Aged 20-29 Years three z-scores was computed to form a muscular strength index. Spearman’s rho (ρ) Young Sub Kwon1, Robert A. Robergs2, Hosung So3, Christine was used to examine bivariate correlation coefficients between physical fitness and M. Mermier4. 1Humboldt State University, Arcata, CA. CMB risk variables. Statistical significance was set a priori at P ≤ 0.05. RESULTS: 2Queensland University of Technology, Brisbane, Australia. Significant correlations were observed between muscular strength and HDL-C (ρ = 3California State University, San Bernardino, CA. 4University 0.542, P = 0.02), muscular power and LDL-C (ρ = -0.523, P = 0.02), and VO max 2 of New Mexico, Albuquerque, NM. (Sponsor: Ann Gibson, and resting heart rate (ρ = -0.664, P = 0.001). No significant associations were found FACSM) between muscular endurance and CMB risk variables. CONCLUSION: Muscular (No relevant relationships reported) strength was positively associated with HDL-C, while muscular power and VO2max were negatively associated with LDL-C and resting heart rate, respectively. These findings support the inclusion of muscular strength and muscular power training in The only available norms for the bench press muscular fitness tests for the general addition to cardiovascular fitness training in healthy women in the prevention of CMB population are the norms developed by the Cooper Institute. These norms were disease. developed using the Universal Gym DVR bench press equipment, which makes these values not directly applicable to free weight bench press. PURPOSE: The free weight bench press test is one of the most convenient tests used to evaluate muscular fitness 2478 Board #2 June 1 1:00 PM - 3:00 PM and the effectiveness of resistance training programs for a variety of sports. However, Exercise Thresholds on Trial: Are They Really its use and interpretation as an evaluative measurement for health-related physical Equivalent? fitness tests are limited because there are few published reference values derived for Kevin Caen. Ghent University, Ghent, Belgium. the general population. Therefore, the aims of the present study were to generate normative values for free weight bench press 1 repetition maximal (RM) and 4 sets of (No relevant relationships reported) 65% of 1RM training volume (total repetitions × resistance) for 20- to 29-year-olds for men and women. METHODS: We recruited healthy 606 subjects for this study. Purpose: The interchangeable use of whole-body exercise thresholds and breakpoints 351 males (mean±SD, age=23 ± 2 yr, height= 177±7cm, body mass=83±16kg) and (BPs) in local oxygenation responses, as measured via near-infrared spectroscopy 255 females (age=23±3 yr, height=167±6cm, body mass=67±11.3kg) aged 20 to 29 (NIRS), has recently been questioned in scientific literature. Therefore, the present years from different universities comprised the subject pool. Data collected from study aimed to longitudinally investigate the interrelationship of four commonly used the bench press test included absolute (1RM) and relative (the ratio of 1RM to body exercise thresholds: critical power (CP), the respiratory compensation point (RCP) and weight) strength, and the total repetitions and absolute and relative total volumes of st BPs in muscle (m[HHb]BP) and brain (c[O2Hb]BP) oxygenation. the 1 set and 4 sets of 65% of 1 RM bench press test with 30 second rest periods Methods: Nine male participants (21.8±1.2 years) completed six weeks of cycling between sets. Percentile norms and descriptive statistics were generated. RESULTS: interval training. Prior to and following the intervention period, subjects performed a Table 1 reports the %tile rank values for the bench press exercise for men and women. ramp incremental (RI) exercise protocol to determine RCP, m[HHb]BP and c[O2Hb]BP CONCLUSIONS: Our results provide, for the first time, reference standards for the and four constant work rate (WR) tests to calculate CP. general population aged 20 to 29 years sex-and age-specific free weight bench press Results: WRs associated with CP, RCP, m[HHB]BP and c[O2Hb]BP increased with 1RM and training volumes of the 4 sets of 65% of bench press test with 30 second rest 7.7 ± 4.2%, 13.6±9.0%, 9.8±5.7% and 11.3±11.1%, respectively. CP was lower periods between sets. (pre: 260±32W, post: 280±41W) (P < 0.05) than the WRs associated with RCP (pre: Table 1. %tile rank for bench press muscular fitness for men and women 281±28W, post: 318±36W) and c[O2Hb]BP (pre: 283±36W, post: 313±32W) which occurred concomitantly (P = 0.683). M[HHb]BP occurred at the highest WR and 1RM (kg) Total Training Volume (kg) differed from all others (pre: 313±23W, post: 344±32W) (P < 0.05). Training-induced %tile rank Men Women Men Women FRIDAY, JUNE 1, 2018 JUNE 1, FRIDAY, WR differences (∆WR) did not contrast between thresholds and initial parameter 75 119 54 2480 1115 differences were not affected by the intervention (P = 0.253). Thresholds were partly correlated before (R = 0.67-0.85, P < 0.05) and after (R = 0.83-0.96, P < 0.05) training, 50 98 49 1795 925 but ∆WR were not interrelated (P > 0.05). 25 81 41 1500 684 ACSM May 29 – June 2, 2018 Minneapolis, Minnesota Official Journal of the American College of Sports Medicine Vol.