ABSTRACTThis study was done to determine the accuracy of 7 equations for predicting a 1-RM from repetitions fatigue bench press, squat, and deadlift. Subjects, 67 untrained college students (40 M, 27 F) who were enrolled in weight training classes, participated four 45-min practice ses

Kemmler, W, von Stengel, S, Köckritz, C, Mayhew, J, Wassermann, A, and Zapf, J. Effect of compression stockings on running performance in men runners. J Strength Cond Res 23(1): 101-105, 2009-The purpose this study was to determine the effect below-knee Using a within-group design, 21 moderately trained athletes (39.3 ± 10.9 years) without lower-leg abnormities were randomly assigned perform stepwise treadmill test up voluntary maximum with compressive stockings. The second completed within...

Strength is a fundamental component of physical fitness, and therefore should be precisely assessed. The purpose this study was to analyze the number testing sessions required achieve consistent 1 repetition maximum (1RM) strength measurements in untrained older women. Forty-five women were measured for 1RM bench press machine (BP), leg extension (LE) machine, free weight arm curl (AC). Reliability coefficients trials 2 BP (intraclass correlation coefficient [ICC] = 0.973) LE (ICC 0.976)...

ABSTRACTThe purpose of this study was to determine the accuracy using relative muscular endurance performance estimate 1 RM bench press strength. College students (184 men and 251 women) were tested for strength following 14 weeks resistance training. Each subject then randomly ass

Kemmler, W, Schliffka, R, Mayhew, JL, and von Stengel, S. Effects of whole-body electromyostimulation on resting metabolic rate, body composition, maximum strength in postmenopausal women: the Training ElectroStimulation Trial. J Strength Cond Res 24(7): 1880-1887, 2010-We evaluated effect (WB-EMS) during dynamic exercises over 14 weeks anthropometric, physiological, muscular parameters women. Thirty women (64.5 ± 5.5 years) with experience physical training (>3 were randomly assigned either...

To investigate sprinting strategy, acceleration and velocity patterns were determined in college football players (n = 61) during performance of a 9.1-, 36.6-, 54.9-m sprints. Acceleration at 9.1-m intervals each sprint. Lower-body strength power evaluated by 1 repetition maximum (1-RM) squat, clean, jerk, vertical jump, standing long triple jump. Sprint times averaged 1.78 +/- 0.11 seconds (9.1 m), 5.18 0.35 (36.6 7.40 0.53 seconds. peaked 9.1 m (2.96 0.44 x s(-2)), was held constant 18.3...

In recent years, kettlebells have re-emerged as a popular training modality for the conditioning of athletes. We sought to quantify aerobic challenge one popularly recommended kettlebell workout. Ten college-aged men (age = 20.8 +/- 1.1 height 179 3 cm, body mass 77.3 7.7 kg, Vo2max 52.78 6.22 ml.kg.min) completed graded exercise test exhaustion determination Vo2max. Two 7 days later, subjects routine consisting many 2-handed swings could be in 12 minutes using 16-kg kettlebell. During this...

Repetitions to fatigue (RTF) using less than a 1 repetition maximum (1RM) load (RepWt) have been shown be good predictor of 1RM strength in men, but such information is scarce women. The purpose this study was evaluate the accuracy current prediction equations estimate bench press performance and determine whether resistance training changes capability predict from muscular endurance repetitions young Members (n = 103) required wellness course were measured for RTF randomly assigned...

Kemmler, W, von Stengel, S, Schwarz, J, and Mayhew, JL. Effect of whole-body electromyostimulation on energy expenditure during exercise. J Strength Cond Res 26(1): 240–245, 2012—The application (WB-EMS) in the area fat reduction body shaping has become more popular recently. Indeed, some studies prove positive outcomes concerning parameters related to composition. However, there are conflicting data as whether EMS relevantly impacts (EE) or after application. Thus, main purpose study was...

Abstract Aim This study compared the effect of different resistance training (RT) frequencies on total, android, gynoid and trunk body fat in overweight/obese older women. Methods Fifty-seven women (66.9±5.3 years 39.9±4.9% fat) were randomly assigned to one three groups: a group performing RT twice week (G2X), times (G3X), or non-exercise control (CG). Both groups performed same 12-week program consisting 8 exercises that trained all major muscle groups. Dual-energy X-ray absorptiometry was...

The purpose of this study was to examine the differences in activation levels and times for pectoralis major anterior deltoid when performing concentric phase 3 upper-body lifts. Twelve college-age men women with various degrees lifting experience performed repetitions using 6 repetition maximum a barbell bench press, dumbbell fly while being monitored electromyographic activity both muscles. Motor unit muscles not significantly different during all However, flys had less relative time than...

The oxygen cost and energy expenditure of submaximal treadmill running was evaluated in 9 male distance runners. consumption--running speed relationship highly significant (r = .917) linear over the entire aerobic range. caloric 0.97 Kcal/kg/k close agreement with values found literature independent speed. per unit time increased acceleration slope regression line consumption on appear to measure a different component efficiency than fractional utilization coefficient capacity. There is...

The purpose of this study was to compare metabolic demand a kettlebell (KB) swing routine with treadmill (TM) running at equivalent rating perceived exertion (RPE). Thirteen subjects (11 male, 2 female, age = 21.4 ± 2.1 years, weight 73.0 9.2 kg) completed 10-minute KB consisting 35-second intervals followed by 25-second rest intervals. Men used 16-kg KB, and women an 8-kg KB. After 48 hours rest, the TM run RPEs as measured during workout. Metabolic data were monitored each minute exercise...

Mann, JB, Ivey, PJ, Brechue, WF, and Mayhew, JL. Validity reliability of hand electronic timing for 40-yd sprint in college football players. J Strength Cond Res 29(6): 1509–1514, 2015—The is the premier event evaluating speed among players at all competitive levels. Some questions remain concerning validity compared with timing, as well lack assessment each method. The purpose this study was to evaluate by experienced novice timers establish smallest worthwhile difference (SWD) method...

The main purpose of this study was to compare the effects resistance training (RT) performed with different volumes on phase angle (PhA), body water components, and muscle quality (MQ) in untrained older adult women. A second assess relationship between PhA MQ. Sixty-two women (68.6 ± 5.0 years, 65.2 13.3 kg, 156.1 6.2 cm) were randomly assigned into one three groups: two groups either 1 set (G1S) or 3 sets (G3S), a control group (CG). Body components estimated by bioelectrical impedance...

This study analyzed the effects of 12 weeks resistance training (RT) on resting blood pressure (BP) and plasma levels nitric oxide metabolites (NOx) in pre- hypertensive older women, evaluated relationship between these 2 parameters. Thirty-five women (68.2±5.7 years, 70.0±14.4 kg, 157.1±6.4 cm, 28.3±5.0 kg.m⁻²) were randomly allocated into a group (TG; n=17), which performed 12-week RT program, control (CG; n=18), did not perform any physical exercise. Anthropometry, one...

This study evaluated the influence of cadence on Young Men's Christian Association (YMCA) bench press test for predicting 1 repetition maximum (1RM) performance. Fifty-eight medical students (37 men, 21 women) were anthropometric variables (age, height, weight, fat-free mass, and percent fat), 1RM press, 2 tests muscular endurance performed at cadences 30 60 repetitions per minute (reps.min(-1)). Each was a separate day, with 5 days rest in between. There no significant difference among...

Additional fundamental information is needed on the effects of speed and dominant limb torque values ratios quadriceps hamstring muscles during both eccentric concentric contractions. The purpose this study was to determine leg's peak isokinetic production male college athletes. One hundred subjects, from 18 25 years age, were tested a Biodex B-2000 dynamometer concentrically at 60, 120,300, 450 degrees /sec eccentrically 60 120 /sec. All data analyzed by means repeated measures analysis...