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The aim of this study was to compare the musculature activity and kinematics of knee and hip joints during front and back squat with maximal loading. Two-dimensional kinematical data were collected and electromyographic activities of vastus lateralis, vastus medialis, rectus femoris, semitendinosus, biceps femoris, gluteus maximus and erector spinae were measured while participants (n = 12, 21.2 ± 1.9 years old) were completing front and back squat exercises with maximum loading. Paired sample t-test was used for comparisons between two techniques. Results showed that the electromyographic activity of vastus medialis was found to be greater in the front squat compared to the back squat during the ascending phase (P < 0.05, d = 0.62; 95% CI, -15.0/-4.17) and the whole manoeuvre (P < 0.05, d = 0.41; 95% CI, -12.8/-0.43), while semitendinosus (P < 0.05, d = -0.79; 95% CI, 0.62/20.59) electromyographic activity was greater in the back squat during the ascending phase. Compared to the front squat version, back squat exhibited significantly greater trunk lean, with no differences occurring in the knee joint kinematics throughout the movement. Results may suggest that the front squat may be preferred to the back squat for knee extensor development and for preventing possible lumbar injuries during maximum loading.
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http://dx.doi.org/10.1080/02640414.2014.984240 | DOI Listing |
Front Sports Act Living
August 2025
School of Physical Education, Zhejiang Guangsha Vocational and Technical University of Construction, Dongyang, China.
Introduction: This study examined the impacts of different negative pressure cupping therapies (PCT) on pain relief, functional recovery, and inflammatory regulation in delayed onset muscle soreness (DOMS) after high-intensity exercise, with the aim of clarifying the dose-effect relationship.
Methods: In this study, 55 healthy male participants aged 18-25 were selected and divided into 5 groups: the control group (CTR; = 11) and NPCT groups at different levels (-25 kPa, -35 kPa, -45 kPa, and -55 kPa; = 11 in each group). A high-intensity protocol, which included 6 sets of lunges, squats, and squat jumps, was adopted to induce DOMS in the quadriceps femoris.
Prog Rehabil Med
September 2025
Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Objectives: : This study aimed to assess the qualitative effects of locomotion training (LT) on articular cartilage using magnetic resonance imaging T1ρ mapping.
Methods: : Fifteen patients with early knee osteoarthritis participated in the study. They performed a series of exercises, including one-leg stands, squats, heel raises, and front lunges, on a daily basis for 12 weeks.
Front Physiol
August 2025
Facultad de Ciencias Biomédicas y de la Salud, Universidad Alfonso X el Sabio (UAX), Madrid, Spain.
Training structures such as every minute on minute (EMOM), as many repetitions as possible (AMRAP), and rounds for time (RFT) have gained popularity for improving sport performance and general health. However, limited research exists on how different relative loads affect neuromuscular and cardiorespiratory responses. This study aimed to compare acute effects on heart rate (HR), mean propulsive velocity (MPV), velocity loss, and pacing in participants performing AMRAP, EMOM, and RFT using the same absolute but varying relative loads.
View Article and Find Full Text PDFInt J Exerc Sci
September 2025
Faculty of Health and Sports Science, Juntendo University, Chiba, Japan.
The Bulgarian split squat (BSS) is a unilateral exercise that emphasizes hip extension more than knee extension, compared to other squat variations. This study aimed to (1) empirically verify the existence of the rear leg-derived moment (M)-a theoretically plausible but previously untested external resistive hip moment acting against the net hip extension moment (M) of the front leg-and (2) examine how stance width and forward trunk-leaning angles affect M during the BSS. Nine trained male participants performed bodyweight BSS under two stance conditions (wide and narrow) and three trunk-leaning conditions (additional, natural, and reduced forward lean).
View Article and Find Full Text PDFFront Rehabil Sci
August 2025
Department of Sport Science, Faculty of Social Sciences, Linnaeus University, Kalmar, Sweden.
Objective: This systematic review and synthesis aimed to describe the frequency and characteristics of knee extensor exercise prescriptions within patellofemoral pain (PFP) interventions and to assess the extent to which key training variables are reported. By doing so, it sought to inform and support more transparent and standardized reporting practices in exercise-based rehabilitation for individuals with PFP.
Method: This systematic review was conducted following PRISMA guidelines.