JC Andersen

The University of Tampa | UT · Department of Health Sciences and Human Performance

Focused Clinical Question : In adult patients with persistent low back pain, what relationship do social determinants of health have on pain frequency or severity? Bottom Line : This systematic review identified several particular social risk factors (including education status, socioeconomic status, and occupational factors) that are consistently...

This paper presents data on player load and heart rate responses during games in female collegiate basketball players in one season.

This study compared the effects of FAST and SLOW eccentric repetition tempo in a single exercise volume-matched intervention on muscle thickness (MT) and strength in resistance-trained men. Using a within- subject design, 13 subjects had each leg randomly assigned to SLOW (1-0-3) or FAST (1-0-1) repetition tempo. Subjects un- derwent an 8-week stre...

INTRODUCTION: Coaches are frequently concerned with athletes' body composition and the possible influence it has on performance. Specifically, there is an assumption that a relationship exists between the amount of muscle mass attained and performance. Previous literature has shown that total lean body mass (TLBM) is positively correlated with on-f...

INTRODUCTION: Coaches are frequently concerned with athletes' body composition and the possible influence it has on performance. Specifically, there is an assumption that a relationship exists between the amount of muscle mass attained and performance. Previous literature has shown that total lean body mass (TLBM) is positively correlated with on-f...

The purpose of this study was to assess the concurrent validity and test-retest reliability of a linear position transducer (LPT) for the squat jump (SJ) and counter-movement jump (CMJ) height. Twenty-eight subjects (25.18 ± 7.1 years) performed three SJs followed by three CMJs using a force plate concurrently with the LPT to test validity. Subject...

This study investigated the effects of two different velocity-based training (VBT) regimens on muscular adaptations. Fifteen female college volleyball players were randomly assigned into either progressive velocity-based training (PVBT) or optimum training load (OTL). Both groups trained three times a week for seven weeks. PVBT performed a 4-week s...

BACKGROUND: It is well excepted that exercise selection is an important variable in resistance training. Currently, there is a paucity of data comparing strength and hypertrophy gains when using distinct exercise selection methods. Furthermore, recent evidence suggests that auto-regulatory approaches may optimize strength training adaptations. Howe...

Studies utilizing beta-hydroxy-beta-methylbutyrate (HMB) supplementation in trained populations are limited. No long-term studies utilizing HMB free acid (HMB-FA) have been conducted. Therefore, we investigated the effects of 12 weeks of HMB-FA supplementation on skeletal muscle hypertrophy, body composition, strength, and power in trained individu...

In this case review we report on a bodybuilder who used a practical model of blood flow restriction (BFR) training to successfully rehabilitate himself following an injury to his right knee. The patient originally thought he had torn his meniscus however repeat radiographs and magnetic resonance imaging (MRI) confirmed an osteochondral fracture. Th...

It is common among competitive baseball players to swing bats while in the batter's box in an attempt to improve their batting performance. Players use bats of different weights during this time, and only a few studies have evaluated the optimal bat weight to increase performance. Previous studies have not investigated the optimal rest period after...

The primary objective of this investigation was to identify which components of endurance training (e.g., modality, duration, frequency) are detrimental to resistance training outcomes. A meta-analysis of 21 studies was performed with a total of 422 effect sizes (ESs). Criteria for the study included were (a) compare strength training alone to stre...

REFERENCE: Chou R, Fu R, Carrino JA, Deyo RA. Imaging strategies for low-back pain: systematic review and meta-analysis. Lancet. 2009;373(9662):463-472. Studies were identified by searching MEDLINE (1966 through first week of August 2008) and the Cochrane Central Register of Controlled Trials (third quarter of 2008). The reference lists of identifi...

OBJECTIVES: To educate athletic trainers and others about the need for emergency planning, to provide guidelines in the development of emergency plans, and to advocate documentation of emergency planning. BACKGROUND: Most injuries sustained during athletics or other physical activity are relatively minor. However, potentially limb-threatening or li...

Cryotherapy is often used to affect the muscle underlying skin and subcutaneous tissues. However, the relationship between the penetrative ability of various cryotherapy methods and treatment time is not thoroughly understood. The purpose of this study was to measure muscle temperature responses during two frequently used cryotherapy techniques. A...

Our purpose in conducting this study was to estimate the reliability of reciprocal concentric knee extension and flexion peak torque obtained in uninjured male athletes using the Biodex isokinetic dynamometer. Twenty-six male intercollegiate athletes (age=19.5+/-4.1 yr; ht=70.3+/-14.9 in; wt=212.9+/-48.5 lb) participated in this study. We used the...