INTRODUCTION Clinically, there has been an interest in the relationship between hip and spine function since the first reporting of hip-spine syndrome [1]. This work discussed the effects of a pathological hip joint on spine function. Others [2,3] have suggested an association between low back pain (LBP) and gluteal muscle inhibition as part of the functional presentation in some patients with ...

BACKGROUND Gluteus medius (GM) dysfunction is associated with many musculoskeletal disorders. Rehabilitation exercises aimed at strengthening GM appear to improve lower limb kinematics and reduce pain. However, there is a lack of evidence to identify which exercises best activate GM. In particular, as GM consists of three distinct subdivisions, it is unclear if GM activation is consistent acros...

BACKGROUND The purpose of this study was to examine the efficacy of 15 days of betaine supplementation on muscle endurance, power performance and rate of fatigue in active college-aged men. METHODS Twenty-four male subjects were randomly assigned to one of two groups. The first group (BET; 20.4 +/- 1.3 years; height: 176.8 +/- 6.6 cm; body mass: 77.8 +/- 13.4 kg) consumed the supplement daily...

Methods Fifteen male strength/power athletes volunteered to participate in this study. Subjects were randomly divided into a supplement (S; n = 7, 19.7 ± 1.5 y, 185.4 ± 3.9 cm, 96.4 ± 11.9 kg) or a placebo (P; n = 8, 20.0 ± 1.1 y, 176.7 ± 8.5 cm, 85.8 ± 12.0 kg) group. Subjects reported to the Human Performance Laboratory (HPL) on four separate occasions. On the first visit subjects were tested...

The purpose of this investigation was to assess the effectiveness of variable resistance as provided through elastic plus free weight techniques in college aged males and females. Twenty novice lifters were randomly assigned to a traditional free weight only (6 males and 5 females) or elastic band plus free weight group (5 males and 5 females) and 9 more normally active controls (5 males and 4 ...

CONTEXT Functional exercises are often used in strengthening programs after lower extremity injury. Activation levels of the stabilizing hip muscles have not been documented. OBJECTIVE To document the progression of hip-muscle activation levels during 3 lower extremity functional exercises. DESIGN Cross-sectional. SETTING Laboratory. PARTICIPANTS 44 healthy individuals, 22 women and 22 ...

OBJECTIVE The purpose of this study was to investigate the effect of hip adduction on the activity of the Vastus Medialis Obliquus (VMO) and Vastus Lateralis Longus (VLL) muscles during semisquat exercises. METHODS Twenty female subjects, divided into two groups comprising healthy and patellofemoral pain syndrome (PFPS) subjects (ten volunteers for each group), performed three double-leg semi...

Penelitian ini bertujuan untuk mengetahui pengaruh latihan lompat katak dan skipping terhadap hasil jauh gaya jongkok siswa kelas VIII SMP Negeri 1 Lintang Kanan. Metode penelitian dalam adalah metode eksperimen. Rancangan yang digunakan the modified pre-test – post-test group design. Teknik pengumpulan data menggunakan test jauh. Hasil tingkat signifikansi gya VII Kanan dihitung dengan Uji t k...