OBJECTIVE: To compare postural stability, single-leg hop, and isokinetic strength measurements in subjects after anterior cruciate ligament (ACL) reconstruction with an age- and activity-matched control group. DESIGN AND SETTING: Subjects reported to a sports medicine/athletic training research laboratory for testing. Subjects reported for one testing session for a total test time of 1 hour. SU...

The individual muscles of a multiple muscle group at a given joint are often assumed to function synergistically to share the load during locomotion. We examined two leg extensors of a running cockroach to test the hypothesis that leg muscles within an anatomical muscle group necessarily manage (i.e. produce, store, transmit or absorb) energy similarly during running. Using electromyographic an...

BACKGROUND Supervised training can reach a limited number of elderly people. OBJECTIVE To determine the impact of a 1-year mixed-strength training programme on muscle function (MF), functional ability (FA) and physical activity (PA). SETTING Twice-a-week hospital-based exercise classes and a once-a-week home session. PARTICIPANTS twenty-eight healthy community-dwelling men and women on th...

BACKGROUND The aim of this study is to verify the effects of the combined and classic training of different isometric rates of force development (RFD) parameters of legs. MATERIALS AND METHODS THREE GROUPS OF FEMALE ATHLETES WAS TESTED: Experimental group (N = 12), classically trained group (N = 11), and control group (N = 20) of athletes. The isometric "standing leg extension" and "Rise on T...

This study compared physical characteristics (body height [BH], body mass [BM], body fat [BF], and fat free mass [FFM]), one repetition maximum bench press (1RM (BP)), jumping explosive power (VJ), handball throwing velocity, power-load relationship of the leg and arm extensor muscles, 5- and 15-m sprint running time, and running endurance in elite (n = 16; EF) and amateur (n = 15; AF) female h...

Balance is defined as the ability to maintain postural stability (equilibrium) during quiet standing, perturbed standing and voluntary movement. Additional hand contact helps in retaining balance by extending the base of support. Little is known, however, about the actual contribution of the hand support in a continually challenged stability during standing. With this study we aimed to investig...

the aim of this study was to determine the effect of eight-week resistance training on muscular strength and balance in men with multiple sclerosis (ms). for this purpose, out of 40 ms patients in iran ms society, 18 patients (mean age 34.05±7.8 yrs; mean expanded disability status scale 2.94±1.54 score; mean weight 67.83±11.58 kg; and mean body mass index 22.40±3.81kg/m2) were randomly divided...

BACKGROUND This randomized controlled study investigated the effects of 1-year whole-body vibration (WBV) training on isometric and explosive muscle strength and muscle mass in community-dwelling men older than 60 years. METHODS Muscle characteristics of the WBV group (n = 31, 67.3 +/- 0.7 years) were compared with those of a fitness (FIT) group (n = 30, 67.4 +/- 0.8 years) and a control (CON...