The aim of this study was to assess the relationships between human muscle fiber hypertrophy, protein isoform content, and maximal Ca 2+ -activated contractile function following a short-term period resistance exercise training. Six male subjects (age 27 ± 2 yr) participated in 12-wk progressive training program that increased voluntary lower limb extension strength by >60%. Single chemically skinned fibers were prepared from pre- posttraining vastus lateralis biopsies. Training...

Musculoskeletal performance assessment is critical in the analysis of physical training programs order to prioritize goals for decreasing injury risk and focusing goals. Abdominal endurance as part this often assessed with techniques that have validity has been debated literature. The purpose study was develop normative sex- athlete-specific percentiles a trunk stabilization muscular by using prone forearm plank test college-aged students. A second investigate effect habitual activity reason...

SHOEPE, T. C., J. E. STELZER, D. P. GARNER, and WIDRICK. Functional Adaptability of Muscle Fibers to Long-Term Resistance Exercise. Med. Sci. Sports Exerc., Vol. 35, No. 6, pp. 944–951, 2003. Purpose We compared the functional properties muscle fibers from two groups subjects that differed widely in their training history investigate whether long-term resistance exercise alters intrinsic contractile skeletal fibers. Methods Vastus lateralis biopsies were obtained six sedentary males (NT...

Almstedt, HC, Canepa, JA, Ramirez, DA, and Shoepe, TC. Changes in bone mineral density response to 24 weeks of resistance training college-age men women. J Strength Cond Res 25(4): 1098-1103, 2011-Osteoporosis is a chronic disease major public health concern. Characterized by low mass increasing risk for fracture, osteoporosis occurs greater extent Resistance mode exercise that can be used build peak during youth, thereby preventing later life. Our aim was evaluate the effectiveness protocol...

The Effects of 24 weeks Resistance Training with Simultaneous Elastic and Free Weight Loading on Muscular Performance Novice Lifters purpose this investigation was to assess the effectiveness variable resistance as provided through elastic plus free weight techniques in college aged males females. Twenty novice lifters were randomly assigned a traditional only (6 5 females) or band group (5 9 more normally active controls 4 females), recruited maintain normal activity for duration study. No...

Cancer pathogenesis and resulting treatment may lead to bone loss poor skeletal health in survivorship. The purpose of this investigation was evaluate the influence 26 weeks combined aerobic resistance-training (CART) exercise on mineral density (BMD) a multi-racial sample female cancer survivors.Twenty-six survivors volunteered undergo CART for 1 h/day, 3 days/week, weeks. Improving Physical Activity After Treatment (IMPAACT) Program involves supervised group sessions including 20 min...

The number of online courses in higher education is on the rise. However, empirical evidence elucidating best practices for synchronous instruction needed to implement these courses. research purposes were examine class sessions (1) quantify interaction type, frequency, and rate, (2) student engagement (3) instructor prompt frequency three areas order investigate relationships with each category engagement. A total 24 previously recorded including oral textual chat interactions transcribed....

We tested the hypothesis that cross-bridge mechanisms of contraction differed in early postmenopausal women who did or not receive hormone replacement therapy (HRT). Vastus lateralis biopsies were obtained from 17 (49-57 years old), 8 whom on HRT for previous 24 +/- 5 months and 9 never HRT. Electrophoresis enzyme histochemistry revealed fiber myosin heavy chain (MHC) isoform distribution, cross-sectional area (CSA) slow fast fibers, relative CSA occupied by each, similar non-HRT groups....

Elastic bands added to traditional free-weight techniques have become a part of suggested training routines in recent years. Because the variable loading patterns elastic (i.e., greater stretch produces resistance), it is necessary quantify exact identify volume and intensity training. The purpose this study was determine length vs. tension properties multiple sizes set commonly used resistance that would be applied plus bench presses (BP) squats (SQ). Five varying thickness were affixed an...

A measurement technique that decreases the root mean square error (RMSE) of measurements human-joint angles using a personal wireless sensor network is reported. Its operation based on virtual rotations sensors worn by user, and it focuses arm, whose position measured 5 degree freedom (DOF). The use inertial magnetic units measure alignment arm with earth's gravity fields. Due to biomechanical properties human tissue (e.g., skin's elasticity), sensors' orientation shifted, this shift affects...

Osteoporosis is a chronic skeletal disease characterized by low bone mass which currently challenging the American health care system. Maximizing peak early in life cost-effective method for preventing osteoporosis. Whole body vibration (WBV) novel exercise with potential to increase mass, therefore optimizing and decreasing risk osteoporotic fracture. The aim of this investigation was evaluate changes mineral density at hip, spine, whole college-age men women who underwent WBV training...

Cancer survivors often experience poor post-treatment musculoskeletal health. This study examined the feasibility of combined aerobic and resistant training (CART) for improving strength, skeletal health balance. (n = 24) were identified by convenience sampling in Los Angeles County with 11 consenting to 13 weeks CART. Pre- post-intervention assessments bone mineral density (BMD), flexibility biomarker analysis performed. Paired t-test suggested increases lower upper body strength. The...

The sympathetic nervous system dominates the regulation of body functions during exercise. Therefore after exercise, withdraws and parasympathetic helps return to a resting state. In examination this relationship, purpose study was compare recovery heart rates (HR) anaerobically versus aerobically trained cyclists. With all values given as means ± SD, track cyclists (n=10, age=25.9 6.0 yrs, mass=82.7 7.1 kg, fat=10.0 6.3%) road (n=15, age=39.9 8.5 mass=75.3 9.9 fat=13.1 4.5%) underwent...

Anatomical education is a dynamic field where developments in the implementation of constructive, situated-learning show promise improving student achievement. The purpose this study was to examine effectiveness an individualized, technology heavy project promoting performance combined anatomy and physiology laboratory course. Mixed-methods research used compare two cohorts laboratories separated by adoption new atlas project, which were defined as preceding (PRE) following Teaching Learning...

Purpose: There is a lack of scientific investigation into the predictors 3 km race performance in collegiate distance runners.The purpose this was to determine what physiological variables best predict time group runners.Methods: Twenty-one endurance trained runners (11 men, 10 women) volunteered for investigation.Running economy (RE) and maximal oxygen uptake (VO2max) testing were conducted within 9 ± 6 days single session.All participants ran at an NCAA sanctioned track meet.Pearson's...

Variable resistance implemented through concurrent use of rubber-based bands and free weights is commonly used in training athletes. The purpose this study was to examine the consistency (RBR) band loading patterns across four distributors. Bands (n = 141) were obtained from online distributors (Rogue Fitness, EliteFTS, RubberBanditz, Power Systems) a spectrum available widths (0.635, 1.270, 2.860, 4.450, 6.350, 10.160 cm). At least five for each width stretched 5 cm increments resting (100...

Volume, or the total work performed during resistance training is one of vital variables exercise programming. The most common definition in use by practitioners sets x reps external weight. While appropriate for linear loading incurred through free-weight exercise, this inadequately addresses nonlinear with rubber resistance, a relatively new technique. purpose investigation was to derive theoretical model describe method volume calculation band plus exercise. Men (n=51; age 19.5±1.6 years;...

Abstract Background Intensity of resistance training history might be omitted or poorly ascertained in prescreening data questionnaires involving musculoskeletal health. Failure to identify high-versus low-intensity may overlook higher effect sizes with intensities and therefore diminish the precision statistical analysis as a covariate bias confirmation baseline homogeneity for experimental group designation. The purpose was determine degree which single question assessing participant...

There is a lack of information on bone mineral density (BMD) in male young adult distance runners. However, there evidence that female runners this age range may experience low BMD conditions. The World Health Organization has established T-scores to compare values what expected for normal, healthy 25-year-olds the same sex. PURPOSE: purpose investigation was examine gender differences hip, forearm, and spine METHODS: Eighteen men (65.6 ± 3.9 kg; 177.1 5.4 cm; 19.8 1.2 yrs; 20.9 1.1 BMI) 17...

Accurate work and volume quantification is essential to resistance exercise programing in establishing appropriate design controls during research investigations. Viscoelastic properties of elastic band create logarithmic, variable loading patterns, which complicate standard calculations (e.g. sets x reps resistance). Work can be directly measured with force plate technology, but these instruments are not widely available health fitness specialists or strength coaches. Regression equations...

Grip strength (GS) and seated medicine ball toss (MB) have been used as simple, inexpensive, safe, reproducible methods of assessing upper extremity power in a broad spectrum populations. PURPOSE: The purpose this investigation was to examine the relationship between grip dynamometer test results throw young adult distance runners. METHODS: Young male (n = 18; 65.6 ± 3.9 kg; 177.1 5.4 cm; 19.8 1.2 yrs; 20.9 1.1 BMI) female 17; 53.5 7.0 162.2 6.7 20.3 1.6 1.7 endurance trained Division I...