Individual Muscle Force Differences During Loaded Hexbar Jumps: A Statistical Parametric Mapping Analysis.

Knowledge of individual muscle force during strength and conditioning exercises provides deeper understanding of how specific training decisions relate to desired training outcomes. The purpose of this study was to estimate individual muscle forces during hexbar jumps with 0%, 20%, 40%, and 60% of the hexbar deadlift 1-repetition maximum utilizing in vivo motion capture and computational modeling techniques of male participants. Muscle forces for the gluteus maximus, biceps femoris, rectus femoris, vastus intermedius, gastrocnemius, and soleus were estimated via static optimization.

The effect of load based on body mass percentage on peak power output in the hang power clean, hang high pull, and mid-thigh clean pull.

Background: Prescribing load at the peak power output (PPO) is one of the strategies utilized to enhance lower-body muscle power. PPO of an exercise is determined based on a relative percentage of the one-repetition maximum test (1RM). However, 1RM tests may be impractical in some weightlifting derivatives.

Children Who Are Overweight Display Altered Vertical Jump Kinematics and Kinetics From Children Who Are Not Overweight.

Purpose: Children who are overweight typically do not perform motor skills as well as normal-weight peers. This study examined whether vertical jump kinetics and kinematics of children who are overweight differ from nonoverweight peers.

Methods: Thirty-nine children completed maximum-effort countermovement vertical jumps.

Ethical religion in primary care.

Religion is increasingly significant in UK society, and is highly significant for many patients and primary care practitioners. An important task for the practitioner is to ensure that the place of religion in the patient/practitioner relationship is treated with the same ethical seriousness as every other aspect of that relationship. The article finds the 'four principles of biomedical ethics' to be applicable, and recent GMC guidelines to be consistent with the four principles.