Relationships between Hamstrings-to-Quadriceps Ratio and Variables Describing Countermovement and Drop Jumps

St Mary’s University Twickenham, London Effects Of Different Attentional Foci On Performance, Kinetic And Kinematic Variables In Countermovement Jumps And Drop Jumps MSc in Strength and Conditioning

Functional and neuromuscular changes in the hamstrings after drop jumps and leg curls.

The purpose of this study was to use a holistic approach to investigate changes in jumping performance, kinaesthesia, static balance, isometric strength and fast stepping on spot during a 5-day recovery period, following an acute bout of damaging exercise consisted of drop jumps and leg curls, where specific emphasis was given on the hamstring muscles. Eleven young healthy subjects completed a ...

Difference in Hamstring-to-Quadriceps Ratio and Dynamic Stability between Limbs in Elderly People

Purpose: previous studies have suggested that thigh muscle imbalance may be a risk factor for knee injury. The Present study aimed to compare Hamstring-to-Quadriceps (H:Q) Ratio and dynamic stability between the two lower limbs of elderly people. Methods: This was a correlational study and by nonprobability sampling 19 healthy community doweling elderly (age=65.93±3.53 yrs.) p...

Effect of gender on the quadriceps-to-hamstrings coactivation ratio during different exercises.

CONTEXT Coactivation ratio of quadriceps to hamstring muscles (Q:H) and medial to lateral knee muscles (M:L) contributes to the dynamic stability of the knee joint during movement patterns recommended during rehabilitation and important for daily function. OBJECTIVE To compare the quadriceps-to-hamstring and medial-to-lateral knee muscles' coactivation ratios between men and women during the ...

Validity analysis of one-repetition maximum strength test for determining the hamstrings-to-quadriceps ratio

–One of the approaches to evaluate injury prediction is the hamstrings-to-quadriceps peak torque conventional ratio (H:Q ratio). The gold standard for assessment of muscle strength in vivo is by isokinetic dynamometry; however, the one-repetition maximum strength test (1-RM) presents high correlation with isokinetic data. This study aimed to compare measures of H:Q ratio in young adults obtaine...