HRV recovery delayed in linemen relative to non-linemen following training

The majority of research evaluating recovery status in American football players has evaluated endocrine markers, biochemical markers (i.e., creatine kinase) and subjective ratings of well-being. However, little attention has been given to cardiovascular markers. Football is often thought of as a predominantly anaerobic sport which may cause some to under appreciate the importance of having …

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Wellness responses to preseason training loads in NCAA DI Football Players

Preseason training for American college football players involves roughly 4 weeks of intense training, typically in hot and humid conditions. Heat stress is exacerbated by protective equipment requirements. The high concentration of training in extreme conditions put players at risk of injury and/or excessive fatigue. It’s no surprise that injury right are highest during the …

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Time-course of perceived recovery in college football players after game-day

Measuring recovery in athletes isn’t so simple. There remains quite a bit of debate regarding what the best metrics are to monitor fatigue in athletes. Objective physiological markers like creatine kinase (muscle damage), inflammation, testosterone to cortisol ratio and heart rate variability are useful but can be hard to acquire and quite costly. Further, the …

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Lack of variation in training load and injury risk in college football players

With the development of wearable GPS and inertial movement devices, quantifying training load in sports teams has become much more convenient and are becoming more affordable to smaller-budget programs. These devices quantify movement in all directions and speeds, providing the coach with useful metrics to determine how much distance is being covered and at what …

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Predictors of tackling performance under fatigue

Sports like rugby and football have the added unique challenge of both giving and receiving tackles. This increase in physicality places higher physical demands on players. Tackling requires skill that is developed by quality coaching and consistent repetition. Strength is an important physical quality that contributes to tackling ability given the high level of forces …

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Developing Power in Football Players

To be competitive in the sport of football, athletes need to be explosive.  Explosiveness refers to the rapid generation of force output (aka Power) and in the context of football, can involve sprinting, jumping, tackling, cutting and even throwing and kicking. Strength coaches across the country strive to improve power in their football players in …

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Predictors of Performance in Pro Football

Every spring, millions of people tune-in to the NFL scouting combine to see the impressive display of athleticism put on by graduating football players. Top athletes from their respective colleges around the United States are invited to showcase their skills and abilities to NFL team executives, scouts and coaches. For many of the athletes, the …

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Hand-timed vs. Electronic-timed 40 yard dash

We’re in the midst of the football off-season where athletes are getting up bright and early to train for next season. High school players are trying to lock down scholarships to major Universities while collegiate athletes are trying to make a name for themselves at the NFL and various free agent combines. This also means …

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Can we track changes in 1RM with the 225 Bench Press Test?

The law of specificity, or the SAID principle (Specific Adaptations to Imposed Demands) suggests that we will improve upon the skill we practice. This certainly applies to strength and conditioning training, albeit, with some gray areas in between. The 225 bench press test is famous for being used at football combine as a measure of …

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Squat, Power Clean and Vertical Jump Relate to Lineman Drive Blocking

In the sport of American Football, the lineman position has very unique physical requirements unlike most positions in other team-sports. Linemen need to have a combination of size and speed which are opposing qualities. The first step off the line of scrimmage for the offensive line is crucial to successful running attacks. A tremendous amount …

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