Upper body force-velocity profiles to assess musculoskeletal performance are created using release speed (RS) of the barbell in a bench press throw (BPT). A more easily obtained variable is peak speed (PS) measured by a linear position transducer. We assessed the validity of predicting RS from measured PS. One hundred and seventy-eight throws from…

Background: Measures that assess muscle strength and its development, either voluntarily or involuntarily, are important in the clinical and research context. The main aim of this study was to verify the interday reliability and the minimum detectable change (MDC) of the knee extensors muscles torque using evoked contractions and explosive…

We investigated the associations and differences between dynamic strength index (DSI) calculated from different types of vertical jump (countermovement jump; CMJ and squat jump; SJ) and different isometric knee joint angles (30, 60 and 90[degrees]), and associations with force-velocity (FV) profile and its constituent variables (maximal…

Electrically evoked torque at rest (i.e., the torque produced from supramaximal stimuli applied to a resting muscle) has been shown to be related to muscle size in healthy adults, but this relationship has not been evaluated in pathological populations where atrophy is present. This study aims to evaluate the relationship between the electrically…

This article explores an innovative educational approach using a metabolic board designed to enhance understanding of muscle metabolism across three endurance training zones: Z1 (light intensity), Z2 (moderate intensity), and Z3 (intense/severe intensity). The aerobic threshold marks the transition from light to moderate domains and the anaerobic…

Among the body's mechanical systems that contribute to anterior cruciate ligament (ACL) injuries, hamstrings, quadriceps, and knee flexor muscles are the most prominent components. A strength imbalance to any of these muscles can cause damage to ACL-associated ligaments (Takahashi et al., 2019). To reduce the incidence of such injuries, it is…

Purpose: The aim of this study was to examine the relationships of clinical measures of lingual and perihyoid strength with displacement swallowing kinematics and swallowing safety in a heterogenous group of dysphagic adults. Method: A retrospective analysis was completed of videofluoroscopic swallow studies of consecutive dysphagic outpatient…

The purpose was to evaluate the intra- and inter-session reliability of hip isometric strength assessment using a frame-stabilized dynamometer (FSD) and to compare the results in the hip adduction (ADD) and abduction (ABD) strength assessment using handheld dynamometer (HHD). Twenty participants (24.2 [2.6] years, 69.3 [10.0] kg) underwent testing…

This study assessed whether trunk flexor and extensor strength were predictors of time to stability (TTS) and center of pressure (CoP) during hop and hold tasks in children. Seventeen boys (age, 10.1 ± 1.6 years; height, 1.45 ± 0.11 m; mass, 26.7 ± 7.83 kg) undertook isokinetic strength assessments of concentric and eccentric trunk…

Purpose: To examine the associations between muscular fitness (MF) and body composition. Method: MF was assessed with three tests of FitnessGram test battery. Total body fat percentage (BF%), abdominal fat percentage (AF%) and fat-free mass (FFM) were measured by dual-energy X-ray absorptiometry (DXA). The IOTF body mass index (BMI) cut-offs were…

Purpose: The purpose of this study was to investigate the effects of tongue-strengthening exercise (TSE) on tongue strength and effortful swallowing pressure in young healthy adults. Method: Thirteen young healthy volunteers (six men, seven women; M[subscript age] = 20.5 ± 0.5 years) performed 8 weeks of isometric TSE 3 days per week. A tongue…

The FitnessGram program has prioritized the use of evidence-based, criterion-referenced standards to advance health-related fitness assessments in physical education. The Institute of Medicine (IOM) highlighted the importance of strength and power for youth fitness assessment and surveillance. The report specifically recommended the use of…

This study aimed to assess intra- and inter-visit reliability of a novel EasyForce dynamometer for assessment of maximal strength in knee extension and flexion, and hip abduction and adduction tasks. Young healthy participants (n = 50; 25 males, 25 females; age: 23.4 ± 2.1 years) were measured for maximal joint torque with EasyForce dynamometer…

The aim of this article is to explore the concept of resistance training skill literacy and discuss related strategies to enhance learning, improve adherence and help youth realize the holistic benefits of resistance exercise.

Objective: To examine the presence of body image concerns, drive for muscularity, and disordered eating behaviors in collegiate student-athletes. Participants: One hundred and one NCAA Division I student-athletes participated in Phase I; 15 of these also participated in Phase II. Methods: This study employed a mixed method, sequential explanatory…